12V to 70V DC DC Converter Circuit SG3525 900W

DC DC Converter Circuit is based on sg3525 smps control IC, it can provide 900w power. The power transformer used is etd59 output 4n25, isolated with opto coupler, it gives a symmetrical + – 70 volts total 140 volts output with 12 volts. There is a pcb file prepared with ares that can be used as an auto amplifier supply.

symmetric 70v complete DC DC Converter

CAUTION Be careful is working with high voltage capacitor circuit connections Beware + – If you connect the high voltage polarity may be large explosions before running the insured Power Line circuit, protective goggles

SG3525 DC DC Converter Circuit proteus ares PCB files: