RGB PWM Driver for 350mA LEDs


Posted on Mar 30, 2013

# This version uses a double sided PCB. Dimensions are approximately the same as the original version. # Removed the second push button switch and components for the RS232 serial interface. # Added 22K resistor between MCLR input and Vdd. This eliminates the need for a jumper on the ICSP header in normal operation. (If you use a 12F683 you can omit this resistor as well since it has an internal pull-up)



# Provision for a surface mount DC power socket. # Removed the power-on LED and series resistor. # Added 47K pull-up resistors to the transistor drive circuit. On the original version, when it first powered on the RGB LEDs would flash at 100%




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Led Running Lights
Portable Phone Preamplifier
Simple Over Voltage Protection Circuit: High Voltage Cut Off
TPA3007D1 Mono Medium Power Filter-Free Class-D Audio Amplifier
UHF Antenna Amplifier Circuit
Analogue to Digital Converter
4 channel dimmer
Servomotor Control Program
KA7OEI GPS
Hewlett-Packard HP-200C audio oscillator
DSpace badge board build Instructions
Pulse signal generating circuit and display



Top