Today, no progressing of our project.
We decide to do slideshow on faculty on monday..
Hope it's can settle in a day.. Yosh ^^
Sunday, October 17, 2010
Saturday, October 16, 2010
16 October 2010
Today, we type out all the information of the report.
After checking it, we print it out.
Our report is finally done ^^
After checking it, we print it out.
Our report is finally done ^^
Friday, October 15, 2010
Thursday, October 14, 2010
14 October 2010
Today, we continue do our project.
Firstly, we discuss about the objetive of our project. We are thinking of the main purpose of doing this project and what is the outcome suppose to be?
Then, we discuss about the result we get from experiment and the application of the circuit.
Firstly, we discuss about the objetive of our project. We are thinking of the main purpose of doing this project and what is the outcome suppose to be?
Then, we discuss about the result we get from experiment and the application of the circuit.
Wednesday, October 13, 2010
13 October 2010
Again, we successful modified the circuit with adding a red LED and a 300 ohm resistor which is in series with it..Yosh ^^
After the circuit is switched on, the LED will light up.
By adding this LED, we can know the circuit is running well or not without using multimeter.
Also, by adding the LED, the output voltage and current is decrease, become -5.071V and current become 5.718mA.
After modified the circuit ^^
After the circuit is switched on, the LED will light up.
By adding this LED, we can know the circuit is running well or not without using multimeter.
Also, by adding the LED, the output voltage and current is decrease, become -5.071V and current become 5.718mA.
After modified the circuit ^^
Tuesday, October 12, 2010
12 October 2010
Today, we have constructed the circuit succesfully.Yosh^^
The output voltage is -5.146V while the current is 13mA.(The result was a bit higher than original result since the voltage supplied is less than 9V).
However, our circuit seen like too simple. So, we tried to modify it to by adding some LED to make it become more attracted.
After we switced on the circuit, the LED was lighted up, then it's become dimer and dimer.
A few seconds later, it's was burnt out.
We was confused at first, at the end, WeiChun told us that the maximum voltage across LED is only 2V. Hence, it's mainly due to exceed voltage across the LED.
Actually, we cant put the LED without taking account of the voltage across it.
OIC..
After this, we decide to do a simulation by circuit maker software to know the voltage across LED before we construct it on real circuit.
Hopefully it's work.^^
The output voltage is -5.146V while the current is 13mA.(The result was a bit higher than original result since the voltage supplied is less than 9V).
However, our circuit seen like too simple. So, we tried to modify it to by adding some LED to make it become more attracted.
After we switced on the circuit, the LED was lighted up, then it's become dimer and dimer.
A few seconds later, it's was burnt out.
We was confused at first, at the end, WeiChun told us that the maximum voltage across LED is only 2V. Hence, it's mainly due to exceed voltage across the LED.
Actually, we cant put the LED without taking account of the voltage across it.
OIC..
After this, we decide to do a simulation by circuit maker software to know the voltage across LED before we construct it on real circuit.
Hopefully it's work.^^
 |
| this is our successful circuit |
 |
| this is the waveform from this circuit |
Monday, October 11, 2010
11 October 2010
Today, we start do our report.
And some components as 9V battery and breadboard were bought.
That all.
Thanx..
And some components as 9V battery and breadboard were bought.
That all.
Thanx..
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