Flyback isolated converter 34W output 5V/4A and +-12V/300mA

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Description

SPICE simulation of Flyback DC DC converter, transformer with 3 secondaries, and auxiliary winding for startup circuit. 34W, 3 outputs, 5V and +-12V. PWM with UC3845 in current mode, 40 Khz working frequency.

  • 3 regulated outputs Q1 startup circuit current working frequency of converter UC3845 output driving mosfets global transient simulation view Voltages and currents with max load voltages and currents with low load 1kOhm

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