What is the Purpose of Diodes in These Projects?

[XuFyaN]

Homework Statement

for what purpose dodes are used in these projects.

http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

Homework Equations

I want to search those devices and projects in which diodes are use.
i have found six of them and found some incomplete information (without purpose of diode)
here are the projects,


http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

The Attempt at a Solution

Efforts.
I am searching a lot for the purpose of diode in these projects for last 4 daysbut didn't find.
i've found the purpose of diode in these projects.

Radio
Power Supply
Guitar Distortion Pedal
Temperature Measuring Device
Logic Gates
Electronic Musical Keyboard

can anyone tell me what is the purpose of diode in these projects.

http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

 

[berkeman]

Homework Statement

for what purpose dodes are used in these projects.

http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

Homework Equations

I want to search those devices and projects in which diodes are use.
i have found six of them and found some incomplete information (without purpose of diode)
here are the projects,


http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

The Attempt at a Solution

Efforts.
I am searching a lot for the purpose of diode in these projects for last 4 daysbut didn't find.
i've found the purpose of diode in these projects.

Radio
Power Supply
Guitar Distortion Pedal
Temperature Measuring Device
Logic Gates
Electronic Musical Keyboard

can anyone tell me what is the purpose of diode in these projects.

http://www.electronickits.com/kit/complete/elec/ck1600.htm
http://www.electronics-project-design.com/MotorControl.html
http://www.electronics-project-design.com/PIC-Microcontroller-Circuit.html
http://www.electronics-project-design.com/Amplifier.html

We can't just give you the answer to your schoolwork questions. As I asked in your other thread, what are diodes used for, and what do you think they are being used for in these circuits?

 

[berkeman]

Tell you what. Why don't you take one single circuit from the above list, and one particular diode, and try your best to figure out what it is doing. Post your thoughts here, and we can address that one particular circuit.