For last week's class (Thursday), we had a practical test for installation of the pendarfluor lamp and also the socket extensions. First of all, we were divided into a few groups and each group have two members. Umar and I were in the same group as the slide presentation group. So, we planned to divide the works first.
After we have done with the pendarfluor lamp and socket extension set up, Mr. Ridzuan came to check the pendarfluor lamp and the socket extension whether the lamp is functioning or not. Then, Mr. Ridzuan asked us to replace the ac choke with dc choke. .With that I thank you.
Monday 19 December 2011
Wednesday 14 December 2011
-Circuit (Finale)-
Yesterday's class was great as always. It was the time for submitting the circuit that we have made last week. Although my circuit had functioned already in last week's class, but Mr. Ridzuan asked us to submit the circuit yesterday. Maybe Mr. Ridzuan wanted to give some other chances to those who cannot completed their circuit in the previous class.
After testing the circuit, we had to show the circuit one-by-one to Mr. Ridzuan wether it is functioning or not. Then, he gave 30 minutes rest because there were students still tried to complete their circuits.
Finally, after all the students submitted the circuits, Mr. Ridzuan taught us a new lesson that was the Electric System.
First of all, he explained to us what Electric System is all about. And not to forget, he also explained the system of electric used in Malaysia, from the hydroelectric turbines until electricity in the house.
To make us very understand about what he explained, he showed us some examples in the workshop room.
After that, we moved to the practical session where Mr. Ridzuan showed us how to assemble the pendarfluor lamp. But before that, he had explained to us about the wires that we were going to use in the practical.
For the next class, we are going to set up the pendarfluor lamp by ourselves. Also, we have to install the wires into the socket like what Mr. Ridzuan did.
With that, I thank you.hehe
After testing the circuit, we had to show the circuit one-by-one to Mr. Ridzuan wether it is functioning or not. Then, he gave 30 minutes rest because there were students still tried to complete their circuits.
Finally, after all the students submitted the circuits, Mr. Ridzuan taught us a new lesson that was the Electric System.
First of all, he explained to us what Electric System is all about. And not to forget, he also explained the system of electric used in Malaysia, from the hydroelectric turbines until electricity in the house.
To make us very understand about what he explained, he showed us some examples in the workshop room.
After that, we moved to the practical session where Mr. Ridzuan showed us how to assemble the pendarfluor lamp. But before that, he had explained to us about the wires that we were going to use in the practical.
This is a tutorial video for those who want to learn how to install the socket on the wall.
With that, I thank you.hehe
Monday 12 December 2011
-Completing the Board-
Hi, we meet again..
Still remember the circuit boards we made before? So, im going to continue the story about it. In the Thursday's class last week, we continued the circuit making but, with new board. Because there were too many students cannot completed the circuits and some of them faced many problems in making the circuits including me. I have a problem with the excess solders on my board. The solders then contact with each other.
Mr. Ridzuan added, if that happens, it will bring to a short circuit. In result, my LED lighted up but not blinking. So, Mr. Ridzuan decided to give another board but still using the same components that he had given last time except to the students that succcesful made their circuits. As I considered my circuits weren't functioning, I had to do the same processes.like before. Means that I took the new board.
After we finished all the processes, we tested the circuit wether it is functioning or not. Finally, my new circuit blinking and I felt very grateful because there will be no more circuits to be completed.
Actually, the circuits making was very tiring because we had to give full of attention when doing the processes. So, thanks to Mr. Ridzuan for giving us another chances to prove that we are actually a very fast learner. Maybe because of the lackness of experience is the main reason why we are not success for the first circuit.
Ok.till we meet again..
Still remember the circuit boards we made before? So, im going to continue the story about it. In the Thursday's class last week, we continued the circuit making but, with new board. Because there were too many students cannot completed the circuits and some of them faced many problems in making the circuits including me. I have a problem with the excess solders on my board. The solders then contact with each other.
Mr. Ridzuan added, if that happens, it will bring to a short circuit. In result, my LED lighted up but not blinking. So, Mr. Ridzuan decided to give another board but still using the same components that he had given last time except to the students that succcesful made their circuits. As I considered my circuits weren't functioning, I had to do the same processes.like before. Means that I took the new board.
After we finished all the processes, we tested the circuit wether it is functioning or not. Finally, my new circuit blinking and I felt very grateful because there will be no more circuits to be completed.
Actually, the circuits making was very tiring because we had to give full of attention when doing the processes. So, thanks to Mr. Ridzuan for giving us another chances to prove that we are actually a very fast learner. Maybe because of the lackness of experience is the main reason why we are not success for the first circuit.
Ok.till we meet again..
Friday 9 December 2011
CANON OPTO-The Industrial Visit
On 6th December, our Tuesday's workshop class had been replaced with an Industrial Visit to the Canon Opto Sdn. Bhd. factory in Shah Alam, Selangor. We leaved from KSJ(Kolej Siswa Jaya) at 8 in the early morning. The planned actually was arranged one month before by Mr. Luqman, our classmate that had been given the responsibility for the proposal and report for this industrial visit. This industrial visit was also one of our syllabus that must be done in this first semester.
We,the students of SMJE, and not to forget the lecturers, (Mr. Ridzuan, Dr. Rasli and Dr. Kamal), also the bus driver finally reached our destination, The Canon Opto factory. The journey to the factory didn't take a long time to reach as Shah Alam is near to Kuala Lumpur (I guess one hour journey), but the most important thing was we slept almost along the journey. Back to the main story, Dr. Kamal distributed one piece of paper contained the schedule of programmes that will be done in this visit to each one of us. We had a picture taking session before we entered the Hall to listen to the briefing given by Canon Opto workers.
After that, we had our breakfast and continued for the visit to the line, which was the real working place for the workers. In overall, the Canon Opto factory was divided into two main parts which one of them was for the Lens Producing part while another one was the Camera itself. These two parts were very different definitely on their name, but also different in their operations and procedures.
We went to the Surface Mount Technology section and saw how they worked together with paying a full of attention. The environment there was very quiet, (means the workers were not talking each others). This section actually was for the making of small part (components) in the camera. Then, we moved to another and another section, and I conclude that these section weren't too attractive because they worked with so many machines.
Next, we visit to the main part for the producing of Camera. It was totally different compared to the components section where this part had so many workers there. They worked together but not doing the same things. I can say that they were very concentrated to their works as they worked like a robot. And most important thing was, they worked with a high level disciplines because each one of them worked hardly to reach the goal or the target assumed by the factory in a day. One of the workers there added, this place must always be in clean condition, because one dust or dirt can affect the quality of the camera being produced especially to the lens. Plus, they have to find person to replace them if they have such an emergency case. That means the goal or target became the most important thing that must be considered first when they are working.
The next stop was Lens section, where the lens were cut, processed, and polished. From what we have seen, this section also played with so many machines. The workers only had to watch the machines wether the machines working smoothly or not. And they also worked for putting the lens into the machines. For not saying this work was too easy, they actually responsible to the machine they used when they are working. The lens can be divided into many parts.(but I've already forgotten).
Finally, we ended our visit at almost 3 hours. The final section was the camera which was the completed processed for a camera. At the end of the visit, we were gathered back into the Hall and had a Q&A session with the workers. We (it wasn't me) gave a few questions that I think were very interesting to know what and why. For me, the visit was great and enjoyable, I felt that we should make another visits to another factory.Thank You.
We,the students of SMJE, and not to forget the lecturers, (Mr. Ridzuan, Dr. Rasli and Dr. Kamal), also the bus driver finally reached our destination, The Canon Opto factory. The journey to the factory didn't take a long time to reach as Shah Alam is near to Kuala Lumpur (I guess one hour journey), but the most important thing was we slept almost along the journey. Back to the main story, Dr. Kamal distributed one piece of paper contained the schedule of programmes that will be done in this visit to each one of us. We had a picture taking session before we entered the Hall to listen to the briefing given by Canon Opto workers.
After that, we had our breakfast and continued for the visit to the line, which was the real working place for the workers. In overall, the Canon Opto factory was divided into two main parts which one of them was for the Lens Producing part while another one was the Camera itself. These two parts were very different definitely on their name, but also different in their operations and procedures.
We went to the Surface Mount Technology section and saw how they worked together with paying a full of attention. The environment there was very quiet, (means the workers were not talking each others). This section actually was for the making of small part (components) in the camera. Then, we moved to another and another section, and I conclude that these section weren't too attractive because they worked with so many machines.
Next, we visit to the main part for the producing of Camera. It was totally different compared to the components section where this part had so many workers there. They worked together but not doing the same things. I can say that they were very concentrated to their works as they worked like a robot. And most important thing was, they worked with a high level disciplines because each one of them worked hardly to reach the goal or the target assumed by the factory in a day. One of the workers there added, this place must always be in clean condition, because one dust or dirt can affect the quality of the camera being produced especially to the lens. Plus, they have to find person to replace them if they have such an emergency case. That means the goal or target became the most important thing that must be considered first when they are working.
The next stop was Lens section, where the lens were cut, processed, and polished. From what we have seen, this section also played with so many machines. The workers only had to watch the machines wether the machines working smoothly or not. And they also worked for putting the lens into the machines. For not saying this work was too easy, they actually responsible to the machine they used when they are working. The lens can be divided into many parts.(but I've already forgotten).
Finally, we ended our visit at almost 3 hours. The final section was the camera which was the completed processed for a camera. At the end of the visit, we were gathered back into the Hall and had a Q&A session with the workers. We (it wasn't me) gave a few questions that I think were very interesting to know what and why. For me, the visit was great and enjoyable, I felt that we should make another visits to another factory.Thank You.
Friday 2 December 2011
-Make Your Real Circuit-
In last week's classes, on Tuesday, Mr. Ridzuan gave a lesson on how to make the real circuit using the design we have made for Multisim and Ultiboard. Definitely, it was something new to us because we only have dealt with the components in computer, not the real one that we use to connect the components by ourselves. Means that, the next lesson will become tougher and harder than before.
In the beginning, Mr. Ridzuan introduced us to the PCB double layer board. Also, he showed us the artwork (he made before the class), that will be used in creating the copper tracks on the board. He also showed us the manual of the full process to make the circuit in the slide. The slide contained many videos of the manual process and made us understand deeply.
Then, Mr. Ridzuan started to cut the big size of PCB into smaller part to match with the artwork.
He placed the circuit into the UV light box to create a copper track on the board that was exactly the same with the artwork. This process only took 90 seconds (1 minute and half). Most importantly, the process must be done in a switched-off-light or in low light place. As Mr. Ridzuan said, the copper on the board will react with the light because all lights have UV rays. In result, the copper tracks cannot be created as the same with the artwork, because the board have been used to react with the UV.
After the process, Mr. Ridzuan dipped the board into the sodium solution. This process also known as 'Developing'. In this process, the board is dipped into the sodium until the green on the board disappear but at the same time, the board must be watched carefully, so that the copper tracks will not disappear together with the green layer on the board. The board was removed then from the solution.
After the board was removed from the basin that contained the sodium, Mr. Ridzuan washed it with tap water and place the board into a machine contain strong acid named Ferric Chloride acid. But other acids like, Ammonium Persulfate or Hydrochloric acid also can be used. This process also called as 'Etching'. This was a long process because it took times to removed all the copper layer on the board completely. The copper layer will effect the circuit made on the board if they were not removed completely. Sand paper was used after the process to removed the green layer that sticked with the copper tracks. Once done, the board will look like this..
Next process is 'Drilling'. Mr. Redzuan drilled a few holes on the board. The number of holes actually depends on how many TH components used in a project. By using special 'Penebuk', the drilling process became easier and faster. After Drilling, Mr. Ridzuan place the components in their specific places on the board. The places of the components actually the same like the design we made in the Ultiboard.
Once every components were on the right positions, it was the time for Soldering. Soldering was not too hard to deal with because we only just have to make sure the copper placed on the copper tracks and not connected to other tracks.
For the next class in the same week, we continued the lesson learned in the Tuesday's class. We did the same things like before, UV Lighting, Developing, Etching, Drilling, and Soldering , but we did all the processes by our own. Mr. Ridzuan firstly gave us some components that will be used in the mini project. Not to forget, also he gave us two boards for single sided board and double sided board.
All procedures and processes worked smoothly during the class. There were not too many problems happened. Alhamdulillah. Nevertheless, we must pay full of attention when doing the process, to make sure the circuit can be done in the time given, and most importantly, is to make sure nothing bad happen when dealing with the acid, driller, and solder.
At the end of the class, we cleaned all the things that we used together. Mr. Ridzuan said that we have to keep the cleanliness in the workshop so that we can use the place again. Otherwise, the keeper of the key to open the workshop wont give any permission to us to use the place. Hopefully, the 'Pekerja Indon' can complete the MJIIT buildings as soon as possible. Go 'Mat Indon' go.
I think that's all from me..Thanks for reading.
In the beginning, Mr. Ridzuan introduced us to the PCB double layer board. Also, he showed us the artwork (he made before the class), that will be used in creating the copper tracks on the board. He also showed us the manual of the full process to make the circuit in the slide. The slide contained many videos of the manual process and made us understand deeply.
He placed the circuit into the UV light box to create a copper track on the board that was exactly the same with the artwork. This process only took 90 seconds (1 minute and half). Most importantly, the process must be done in a switched-off-light or in low light place. As Mr. Ridzuan said, the copper on the board will react with the light because all lights have UV rays. In result, the copper tracks cannot be created as the same with the artwork, because the board have been used to react with the UV.
After the process, Mr. Ridzuan dipped the board into the sodium solution. This process also known as 'Developing'. In this process, the board is dipped into the sodium until the green on the board disappear but at the same time, the board must be watched carefully, so that the copper tracks will not disappear together with the green layer on the board. The board was removed then from the solution.
After developing....
After the board was removed from the basin that contained the sodium, Mr. Ridzuan washed it with tap water and place the board into a machine contain strong acid named Ferric Chloride acid. But other acids like, Ammonium Persulfate or Hydrochloric acid also can be used. This process also called as 'Etching'. This was a long process because it took times to removed all the copper layer on the board completely. The copper layer will effect the circuit made on the board if they were not removed completely. Sand paper was used after the process to removed the green layer that sticked with the copper tracks. Once done, the board will look like this..
Once every components were on the right positions, it was the time for Soldering. Soldering was not too hard to deal with because we only just have to make sure the copper placed on the copper tracks and not connected to other tracks.
For the next class in the same week, we continued the lesson learned in the Tuesday's class. We did the same things like before, UV Lighting, Developing, Etching, Drilling, and Soldering , but we did all the processes by our own. Mr. Ridzuan firstly gave us some components that will be used in the mini project. Not to forget, also he gave us two boards for single sided board and double sided board.
All procedures and processes worked smoothly during the class. There were not too many problems happened. Alhamdulillah. Nevertheless, we must pay full of attention when doing the process, to make sure the circuit can be done in the time given, and most importantly, is to make sure nothing bad happen when dealing with the acid, driller, and solder.
At the end of the class, we cleaned all the things that we used together. Mr. Ridzuan said that we have to keep the cleanliness in the workshop so that we can use the place again. Otherwise, the keeper of the key to open the workshop wont give any permission to us to use the place. Hopefully, the 'Pekerja Indon' can complete the MJIIT buildings as soon as possible. Go 'Mat Indon' go.
I think that's all from me..Thanks for reading.
Thursday 24 November 2011
-It's The Time for Practical Test-
Today, we had the first practical test for the two softwares, Multisim and Ultiboard, that we used in the class before. After a couple of weeks of fun with the Multisim and Ultiboard, the time has come to test and see wether we really understand how to use them, or not.
The tasks given in the test were not really hard actually. As Mr. Ridzuan said, the test was exactly the same with the practices we did in the class. So, he told us that he won't give any help and he forbid us from asking him how or what to do. Otherwise, one mark will be deducted for one question asked.
The first question involved the single sided board with through hole components. While for the second task, we were asked to make a circuit using two types of components, SMD components and TH components. To make it easier, TH components must be placed on top of the board while SMD were at the bottom. Then, the copper tracks must be half at bottom and half on the top side of the board.
I decided to begin with the first circuit because the task seemed easier than the second one. I think there were no problem to deal with it. Then, I moved to the next circuit which the part I got stucked for 1hour and half. After that, I transferred the two circuits into the Ultiboard. When the time was reaching the end, my computer hanged and all the software applications closed by itself. Plus, I have forgotten to save all my works. Alhamdulillah.
With the 10 minutes left, I transferred back all my circuits done in Multisim into Ultiboard. After I have done with very simple design of boards, I placed all the components to its places and correct the mistakes and finished (but not all).
The tasks given in the test were not really hard actually. As Mr. Ridzuan said, the test was exactly the same with the practices we did in the class. So, he told us that he won't give any help and he forbid us from asking him how or what to do. Otherwise, one mark will be deducted for one question asked.
The first question involved the single sided board with through hole components. While for the second task, we were asked to make a circuit using two types of components, SMD components and TH components. To make it easier, TH components must be placed on top of the board while SMD were at the bottom. Then, the copper tracks must be half at bottom and half on the top side of the board.
I decided to begin with the first circuit because the task seemed easier than the second one. I think there were no problem to deal with it. Then, I moved to the next circuit which the part I got stucked for 1hour and half. After that, I transferred the two circuits into the Ultiboard. When the time was reaching the end, my computer hanged and all the software applications closed by itself. Plus, I have forgotten to save all my works. Alhamdulillah.
With the 10 minutes left, I transferred back all my circuits done in Multisim into Ultiboard. After I have done with very simple design of boards, I placed all the components to its places and correct the mistakes and finished (but not all).
Ultiboard and Multisim
The class continued from where we stopped last week, the using of multisim and ultiboard.
For today's lesson, Mr. Ridzuan taught us many things about these two softwares, which are very important to know when designing a circuit. We learned how to edit the design become more interesting and arrange the components on the design in good order.
The important thing that we had to care about when placing the components on the design are wether the wires intercepting to another wires or twisting. Mr. Ridzuan taught us how to tackle to the problems by adjusting the wire's width and position.
In addition, such the problems can be avoided by using some tools in the Ultiboard software that are
-autoroot
-follow me
-shapes
-array
-jumper
-DRC and others.
All of these tools can be reached at the top of Ultiboard.
In order to correct the circuit, we have to know what is the actual problem of the circuit.
So, DRC here plays its important function as it will display the problems of the circuits together with the place where the problems occurs.
For today's lesson, Mr. Ridzuan taught us many things about these two softwares, which are very important to know when designing a circuit. We learned how to edit the design become more interesting and arrange the components on the design in good order.
The important thing that we had to care about when placing the components on the design are wether the wires intercepting to another wires or twisting. Mr. Ridzuan taught us how to tackle to the problems by adjusting the wire's width and position.
In addition, such the problems can be avoided by using some tools in the Ultiboard software that are
-autoroot
-follow me
-shapes
-array
-jumper
-DRC and others.
All of these tools can be reached at the top of Ultiboard.
In order to correct the circuit, we have to know what is the actual problem of the circuit.
So, DRC here plays its important function as it will display the problems of the circuits together with the place where the problems occurs.
Overall, I had a good time and I enjoyed the session. It was interesting as always. This Thursday we will be have a practical test on what we have coved in the class, which is using Multisim and Ultiboard to design and analyse circuits.
Wednesday 23 November 2011
-The ULTIBOARD-
In the second class of this week, we continued our lesson from where we have stopped in the class before. To deal with the Ultiboard, we have to use the designs we have made before. The main use of the Ultiboard is to simulate the circuits, arrange the components on a board so it will look nicer and all these circuits can be transferred into 3D mode.
Ultiboard actually is an electronic Printed Circuit Board (PCB) Layout program which is part of a suite of circuit design programs, along with NI Multisim One of its major features is the Real Time Design Rule Check, a feature that was only offered on expensive work stations in the days when it was introduced.
In Ultiboard, I could design how my circuits looks like and edit the error occurs in the circuits effectively because Ultiboard will tell us where is the problem and what type of the problem occurs in the circuits. In addition, we can put our name on the board so it will make the designs more interesting.
Ultiboard actually is an electronic Printed Circuit Board (PCB) Layout program which is part of a suite of circuit design programs, along with NI Multisim One of its major features is the Real Time Design Rule Check, a feature that was only offered on expensive work stations in the days when it was introduced.
In Ultiboard, I could design how my circuits looks like and edit the error occurs in the circuits effectively because Ultiboard will tell us where is the problem and what type of the problem occurs in the circuits. In addition, we can put our name on the board so it will make the designs more interesting.
Tuesday 15 November 2011
-Multisim-
For this week's classes, Mr Ridzuan introduced us to the two new softwares named Multisim and Ultiboard. In the first class, we were focusing only to the Multisim because Mr Ridzuan said it will take times for us to learn something new like this new software. I think most of us never heard about this software before.
Mr. Ridzuan always mentioned to us that we have to be a fast learner because actually we have no much time to cover up all of the chapters including Multisim and Ultiboard. So, he said he will be teaching the lesson as fast as possible.
Back to the main story, The Multisim, we learned the basics of this software such the components, simulations, and connections of the components. Multisim actually is an electronic schematic capture and simulation program which is part of a suite of circuit design programs, along with Ultiboard.
Mr Redzuan asked us to do some practices using this software. We first designed the same circuits like he did and finally, we had to simulate the designs wether the circuits are working and can be runned or not.
I found a few websites that have the tutorials on Multisim. Maybe it will be useful to the beginners like me. Here is the link to the website Multisim..
Mr. Ridzuan always mentioned to us that we have to be a fast learner because actually we have no much time to cover up all of the chapters including Multisim and Ultiboard. So, he said he will be teaching the lesson as fast as possible.
Back to the main story, The Multisim, we learned the basics of this software such the components, simulations, and connections of the components. Multisim actually is an electronic schematic capture and simulation program which is part of a suite of circuit design programs, along with Ultiboard.
Mr Redzuan asked us to do some practices using this software. We first designed the same circuits like he did and finally, we had to simulate the designs wether the circuits are working and can be runned or not.
I found a few websites that have the tutorials on Multisim. Maybe it will be useful to the beginners like me. Here is the link to the website Multisim..
Friday 4 November 2011
Class With Dr. Rasli..
For today's class, Dr. Rasli took over the teaching session and replaced En. Ridzuan only for this day. He taught us a lot about the devices and system. But, I almost forgot all the information given by him as the information is new to me and by the same time, I forgot to take some notes about it.
From what I have remembered about the lesson, Dr. Rasli explained about the meaning of the devices and systems. Also, the meaning of the electronics.
There was an electronics component that I was really interested in. The name of the components was OLED. OLED stands for Organic Light Emitting Diode. For those who are the first time to hear about this..you can read the information of OLED just click here.
This is how an OLED looks like..
From what I have remembered about the lesson, Dr. Rasli explained about the meaning of the devices and systems. Also, the meaning of the electronics.
There was an electronics component that I was really interested in. The name of the components was OLED. OLED stands for Organic Light Emitting Diode. For those who are the first time to hear about this..you can read the information of OLED just click here.
This is how an OLED looks like..
Tuesday 1 November 2011
25 n 28 of October.
This week became a tough week for everyone of us, because in 25 Oct, we had our first practical test. Although the questions and tasks seemed easy for everyone but we still took time to tackle the questions, because practical test needs a full attention and carefullness to deal with it. Alhamdulillah, I think I can answer all the questions well, but not to be overconfident, I put all these to faith lastly. Insya Allah. God knows what is the best for me.
There were 7 groups total in my class. Some of groups have two and three persons. And my group was the first group to present in the front. Although, we don't have too much knowledge about this 3D tv, but i think we have given a good presentation in overall.
Apart from that, there were 3 lecturers, Dr. Rasli, En. Ridzuan and Dr. Kamal, evaluated our presentations when we were presenting in the front. Lastly, the lecturers gave us some comments and a few tips for better presentations. For advance tips you can click this link..Presentation Tips, I think this link is good for beginners in presentation like me.
By the way, this is the link for the article click me!
and this link for the minutes of meeting click me too!
Thank you for reading.
Then, in 28 Oct, we had our first oral presentation after we went through 2 weeks discussion about our own topics. As I have mentioned in last post, my group have chosen a topic about 3-Dimensional television.
There were 7 groups total in my class. Some of groups have two and three persons. And my group was the first group to present in the front. Although, we don't have too much knowledge about this 3D tv, but i think we have given a good presentation in overall.
Apart from that, there were 3 lecturers, Dr. Rasli, En. Ridzuan and Dr. Kamal, evaluated our presentations when we were presenting in the front. Lastly, the lecturers gave us some comments and a few tips for better presentations. For advance tips you can click this link..Presentation Tips, I think this link is good for beginners in presentation like me.
By the way, this is the link for the article click me!
and this link for the minutes of meeting click me too!
Thank you for reading.
Saturday 22 October 2011
Class Again,,
For this class, we were focusing to the semiconductor components again. But this time, it became more details as many information have been told by En. Ridzuan. So, i will be focusing to the transistor because I have explained about the diodes in last post, before this.
TRANSISTOR?
transistor also a semiconductor components that is made up of two diodes and is a fundamental component in almost all electronics devices. The main function of transistor is to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit.
In addition, we also learnt how to deal with IC (integrated circuit), or we can called it a chip or microchip. Most interestingly, this small components is made up by thousands or millions of tiny resistors, capacitors, and transistors. So, that is mean an IC can be as amplifier, counter, etc.
TRANSISTOR?
transistor also a semiconductor components that is made up of two diodes and is a fundamental component in almost all electronics devices. The main function of transistor is to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit.
A bipolar (junction) transistor is a three-terminal electronic device constructed of doped semiconductor material and may be used in amplifying or switching applications. Bipolar transistors are so named because their operation involves both electrons and holes. Charge flow in a this transistor is due to bidirectional diffusion of charge carriers across a junction between two regions of different charge concentrations. This mode of operation is contrasted with unipolar transistor such as field effect transistor, in which only one carrier type is involved in charge flow due to drift. By design, most of the this transistor collector current is due to the flow of charges injected from a high-concentration emitter into the base where they are minority carriers that diffuse toward the collector, and so transistor are classified as minority-carrier devices.
the BIPOLAR JUNCTION transistor
this is how an IC looks like
the first leg of an IC starts from the left.
Wednesday 19 October 2011
D.I.O.D.E
Diode?,,actually diode is a type of two-terminal electric component with a nonlinear current-voltage characterisitics.A semiconductor diode, the most common type today, is a crystalline piece of semiconductor material connected to two electrical terminals. Semiconductor diodes are widely used throughout all areas of the electronics industry from electronics design through to production and repair.
Have you ever seen this before?
Diode is made in many types such as LED(Light Emitting Diode), Zener diode, Laser diode etc. But for our lesson last week, only LED and diode have been used because they are familiar diodes and can be seen in almost all stuffs.
it is familiar to you right?
En. Ridzuan added some data, diagrams and components that made it very clear to us about this diode. In overall of his class last week, we managed to learn how to calculate the value of diode using multimeter and did data collection in the form provided by lecturer.
This is the symbol of diode.
Tuesday 11 October 2011
Electronics Practice
Starting from last Tuesday, the lecture have been replaced by En. Ahmad Ridzuan bin Mohd Hanapiah. In overall of his two recent electronics classes, we were guided to learn about a few electronics components, such as transistor, diode, capacitor and resistor. Although we have already knew a little bit about such things, the information from En. Ridzuan made us clear and we gained more understanding about these components.
The tutorial that have given to us is very interesting because there are many information about the components in details. So, we don't have to worry ourselves. Thanks a lot to En. Ridzuan.
For the second class in last week, we did a lot of practices included finding the value of each components, using multimeter, and identifying the components based on the information given in the tutorial. Most interestingly, we did blowing up some components. Two capacitors became the victims in the experiment. But
please don't try this at home.
Based on the class, I understood that resistor can be measured in 2 ways. The first one is using the colour code. As the resistor are coded by using colours, we can determined the value of resistance of a resistor using the Colour Code Table (CCT).
This is what CCT looks like.
Instead of using CCT, multimeter is another way to calculate the value of the resistance. And by using this, we can get the actual value of the resistor with precision. Multimeter has many functions as it combined the function of voltmeter, ammeter, ohmmeter and capacitance meter. For the one who wants to know more about multimeter, check it out this video.
Multimeter comes in many shapes and colour, but most important is the function of the multimeter. The most common multimeter in the market now you can have are like the picture below.
Next, we moved to deal with the capacitors. For capacitors, there are two types of them. First one is non polar capacitor while the other one is absolutely polar capacitor. Capacitors that we used in this practice are the one black in colour and another one is made up by many colours.
This is non polar capacitor.
The polar capacitor.(I couldn't find the colourful one)
Capacitance of capacitors can be determined by using 3 ways.
-Colour Code Table (CCT)
-Multimeter
-By Inspection
In the end of the class, En. Ridzuan showed us an interesting experiment, that is the blowing part. Actually, he explode the capacitors just to show us what is the result when the capacitors are connected with the wrong ends. So, when he connect the capacitors to the current source, the capacitors took some times and exploded after that. Then, En. Ridzuan asked us to test it on another capacitor.
In overall, the last week class was very interesting. I really hope that we can have another components to be exploded in the next classes. Last but not least, thanks for reading.
Monday 10 October 2011
Class Three
Assalamualaikum I bid to all readers., we meet again for the third class of Electronics System Engineering. For the last week class, Dr. Kamal like to stress more about the reflective journal ,oral and affective good conduct assesments. He explained to us how the lecturers value and assess the students, what are the marks for being good conduct and so on.
By the same time, I understood that the lecturers were trying to tell us marks aren't the only thing, but the most important is how we behave in the class, response to the tasks given by lecturers and lastly what we can produce after graduation. So, marking system and assessments are the best way to make sure we,the students always be reminded to be good and observe our behaviors.
In the same meaning, we are forced to be good students and always have to show the goods in front of teachers and lecturers. Agree?,..If you say yes, then, yes you are a hypocrite person. But being a hypocrite is not bad at all. Now, see it on the positive side, the assessments or marking system is not only just to encourage us to be a 'hypocrite', they also practice us to be a good person. How about if the classes were held every day, so, we are going to be good and courteuos every day. It sounds good right?. In conclusion, the main key to avoid hypocrisy and to practice the good conduct everyday are sincerity and positive.
In the class, we have learned about the Course Learning Outcome 1 : explaining the fundamental physical mechanism of electronics systemand its development in industries. In the slide show, Dr. Kamal explained one of the basic topic in electronics engineering, about the semiconductor.
As we know, semiconductor is the heart of any electronics device or system. Technically, anything that uses radio waves or that is computerized depends on the semiconductor. There are many things related to semiconductor such as diodes, transistors, capacitors, etc.
Last but not least, Dr. Kamal showed us a video that concluded all about the semiconductor that we have learned already in the class. If you want to see the videos related to this topic just click here.
With that, I thank you. See you for the next class.
By the same time, I understood that the lecturers were trying to tell us marks aren't the only thing, but the most important is how we behave in the class, response to the tasks given by lecturers and lastly what we can produce after graduation. So, marking system and assessments are the best way to make sure we,the students always be reminded to be good and observe our behaviors.
In the same meaning, we are forced to be good students and always have to show the goods in front of teachers and lecturers. Agree?,..If you say yes, then, yes you are a hypocrite person. But being a hypocrite is not bad at all. Now, see it on the positive side, the assessments or marking system is not only just to encourage us to be a 'hypocrite', they also practice us to be a good person. How about if the classes were held every day, so, we are going to be good and courteuos every day. It sounds good right?. In conclusion, the main key to avoid hypocrisy and to practice the good conduct everyday are sincerity and positive.
In the class, we have learned about the Course Learning Outcome 1 : explaining the fundamental physical mechanism of electronics systemand its development in industries. In the slide show, Dr. Kamal explained one of the basic topic in electronics engineering, about the semiconductor.
As we know, semiconductor is the heart of any electronics device or system. Technically, anything that uses radio waves or that is computerized depends on the semiconductor. There are many things related to semiconductor such as diodes, transistors, capacitors, etc.
Last but not least, Dr. Kamal showed us a video that concluded all about the semiconductor that we have learned already in the class. If you want to see the videos related to this topic just click here.
With that, I thank you. See you for the next class.
Saturday 1 October 2011
The second class
For the last week of Electronics System class, Dr. Kamal continued his lecture about the fourth Course Learning Outcome, that is for recognizing the importance of good conduct and healthier environment in developing personal values as well as the society as a whole. For me, a good conduct is all about the humanity, harmony with divine law, and it reflects someone's lifestyle and their attitude. Without the good conduct our lives will become disorder and severe as there are no discipline, honesty, goods and pure natures to shape up our lives.
In my opinion, the good conduct should be practiced by people everyday starting from the infancy until the death. For muslim (including me), we are asked by our god, the only god, Allah, The Most Merciful to be a good and responsible human, and always practice the good conduct in our whole lives. But I think, all religions other than Islam also asked their followers to be the same. Should there is no person having lackness of pure natures in his life. In case, there are people who dont believe in God.
As a student like me, the good conduct can be practiced and valued by how we behave with friends, the lecturers and public. The way we communicate will reflect our attitudes and true behaviors. Other than that, we can train ourselves to be a disciplined person by practicing to submit the assignments or homeworks given by the lecturers on time.
In the future, if we practice the good conduct from the beginning, it will be easier when we work in a workplace as a society. By that time, we have to be prepared ourselves with these things because in the worklife, good conduct is very important.
In the class, Dr. Kamal showed us two examples of good conduct. The one was about The Honda's Brake Defect. In 23 Oct 2011, Honda Motor Co. recalled of nearly 528,000 vehicles worldwide to prevent the unlikely failure of a seal in the brake master cylinder. This showed that the Honda Motor Co. is responsible to their products. Although, it will take a high cost to recall the cars, the customers' rights always be the first. To read more click Honda's Brake Defect.
Another one example showed in the slide was about a Magical Hard Drive. A customer bought the 500Gb hard drive but magically when he put a video file in the hard drive, it will show only the last five minutes of the video when it is played. A very magical trick when he knew that the size of the hard drive is only 128Mb.
When the hard drive is opened,it looks like this:
At the end of the class, Dr. Kamal explained about the 5S means Sort, Stabilize, Shine, Standardize, and Sustain. Said Dr. Kamal, these five S are not only a housekeeping and cleanliness, but they likely more about to change the lifestyle and attitude of students.
I think this is a little bit about the last week class. I will keep this blog updated for the next and next class. So,just wait and see. By~
In my opinion, the good conduct should be practiced by people everyday starting from the infancy until the death. For muslim (including me), we are asked by our god, the only god, Allah, The Most Merciful to be a good and responsible human, and always practice the good conduct in our whole lives. But I think, all religions other than Islam also asked their followers to be the same. Should there is no person having lackness of pure natures in his life. In case, there are people who dont believe in God.
As a student like me, the good conduct can be practiced and valued by how we behave with friends, the lecturers and public. The way we communicate will reflect our attitudes and true behaviors. Other than that, we can train ourselves to be a disciplined person by practicing to submit the assignments or homeworks given by the lecturers on time.
In the future, if we practice the good conduct from the beginning, it will be easier when we work in a workplace as a society. By that time, we have to be prepared ourselves with these things because in the worklife, good conduct is very important.
In the class, Dr. Kamal showed us two examples of good conduct. The one was about The Honda's Brake Defect. In 23 Oct 2011, Honda Motor Co. recalled of nearly 528,000 vehicles worldwide to prevent the unlikely failure of a seal in the brake master cylinder. This showed that the Honda Motor Co. is responsible to their products. Although, it will take a high cost to recall the cars, the customers' rights always be the first. To read more click Honda's Brake Defect.
Another one example showed in the slide was about a Magical Hard Drive. A customer bought the 500Gb hard drive but magically when he put a video file in the hard drive, it will show only the last five minutes of the video when it is played. A very magical trick when he knew that the size of the hard drive is only 128Mb.
When the hard drive is opened,it looks like this:
At the end of the class, Dr. Kamal explained about the 5S means Sort, Stabilize, Shine, Standardize, and Sustain. Said Dr. Kamal, these five S are not only a housekeeping and cleanliness, but they likely more about to change the lifestyle and attitude of students.
I think this is a little bit about the last week class. I will keep this blog updated for the next and next class. So,just wait and see. By~
Thursday 29 September 2011
The First Day Of Electronics System
Assalamualaikum Warahmatullahi Wabarakatuh,,
Hello everyone,
My name is Ahmad Nur Firdaus bin Hashim..As new students of Electronics System Engineering, my friends and i, had to attend the Introduction to Electonics System Engineering class on 22th September,last week. For the first day of lecture, we were given a task like assignment by Dr. Kamal, our lecturer. He asked everybody in the class to make a 'reflective journal', or in simply meaning, we were asked to make a BLOG.
In the first class, we were introduced to the Course Objective just to make sure all of us understand about the concept and ideas of Electrical System Engineering. Also, we were taught about the Japanese work culture. The class became more interesting when Dr. Kamal spoke a few words in Japanese language. Although, it was a bit hard for me to pronounce the words, i think a continuous practices will make it perfect, but perhaps it'll take some times for me to bear with it.
The last objective of this course is to develop our communication skills, teamwork, and integrity skills that seemed very important to us. Dr. Kamal said that we, the students, should achieve all these objectives and criteria at the end of the course, to make us an employable graduate, 4 years from now.
After that, Dr. Kamal showed us a video, that i think a very interesting video to be watched. The video was about different people, different teenagers have so many distinctive goals in their life. Here we can observe so well the two different attitudes of the students Susan and Robert. This video also told us that the way of teaching by the lecturers affect the attitudes of the students. So, it is showed that both teachers and students were the most important person in making a good student. If you want to see the video, just click this link Susan and Robert.
Hello everyone,
My name is Ahmad Nur Firdaus bin Hashim..As new students of Electronics System Engineering, my friends and i, had to attend the Introduction to Electonics System Engineering class on 22th September,last week. For the first day of lecture, we were given a task like assignment by Dr. Kamal, our lecturer. He asked everybody in the class to make a 'reflective journal', or in simply meaning, we were asked to make a BLOG.
In the first class, we were introduced to the Course Objective just to make sure all of us understand about the concept and ideas of Electrical System Engineering. Also, we were taught about the Japanese work culture. The class became more interesting when Dr. Kamal spoke a few words in Japanese language. Although, it was a bit hard for me to pronounce the words, i think a continuous practices will make it perfect, but perhaps it'll take some times for me to bear with it.
The last objective of this course is to develop our communication skills, teamwork, and integrity skills that seemed very important to us. Dr. Kamal said that we, the students, should achieve all these objectives and criteria at the end of the course, to make us an employable graduate, 4 years from now.
After that, Dr. Kamal showed us a video, that i think a very interesting video to be watched. The video was about different people, different teenagers have so many distinctive goals in their life. Here we can observe so well the two different attitudes of the students Susan and Robert. This video also told us that the way of teaching by the lecturers affect the attitudes of the students. So, it is showed that both teachers and students were the most important person in making a good student. If you want to see the video, just click this link Susan and Robert.
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