Switching regulator operating at 200Khz


Posted on Aug 1, 2012

This circuit provides a regulated dc with less than 100 mV of ripple for microprocessor applications. Necessary operating voltages are taken from the bleeder resistor network connected across the unregulated 28 V supply. The output of the LM710 comparator (actually an oscillator running at 200 kHz) is fed through a leveNshifting circuit to the base of bipolar transistor Q2


Switching regulator operating at 200Khz
Click here to download the full size of the above Circuit.

This transistor is part of a bootstrap circuit necessary to turn the power MOSFET full on in totem-pole MOSFET arrays.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Four-output-waveform-generator
Oscilloscope-calibrator
mc2833 fm transmitter circuit design electronic project
tv transmitter and pal video modulation
drm down converter for 455khz if
SEQUENTIAL TIMER
Simple design with a constant K-type high-frequency low-pass LC filter



Top