Application Notes
DN-38 Unique Cheap and Dirty Converter for Low Power Bias Supplies
Texas Instruments
Published : 05 Sep 99
Description
The UC495A PWM modulator provides a complete pulse-width modulation system in a single monolithic integrated circuit. Most-power supply designs use PWM controller ICs and MOSFET switches that require 10-15V bias supplies for proper operation. A common application problem is to first generate an auxiliary supply within this range. Although simple in many applications developing this supply with a