Pulse Width Modulation

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PIC16F628 Serial 8 RGB LED PWM Controller

This code is for a simple RGB LED controller for 8 LEDs using a PIC16F628 that has PWM control for the LEDs.

http://www.semifluid.com/?p=13

This code is for a simple RGB LED controller for 1 LED using a PIC16F628 that has PWM control for the LED.

http://www.semifluid.com/?p=11

http://www.edn.com/article/CA149118.html

are useful when you use 4- to 20-mA current-loop signals to control a PWM signal

http://www.edn.com/archives/1998/090198/18di.htm

What is PWM and why is it useful?

http://www.4qdtec.com/beginners/pwmhow.html

http://www.4qdtec.com/pwm-01.html

http://www.web-ee.com/Schematics/PWM/pwm.htm

12 or 24V pulse width modulator for light dimming or DC motor controlling

http://www.solorb.com/elect/solarcirc/pwm1/