Monday, September 05, 2016

High Current Output Switching Mode Power Supply

This is low voltage high-current ouput switching dc power supplly wiht input 220 Volts AC , In this circuit , an St2 diac relaxation oscilator, Q3 , C1 , and the diac , initiates conduction of the output switching transistor Q1, the on time of which is maintained constant by a separate timing / commutation network consisting of Q2 , C2 ,SUS , and SCR 1.

See High Current Output Switching Mode Power Supply circuit diagram below :
High Current Output Switching Mode Power Supply

The output voltage , consequently , is independent on the duty cycle . To compensate for unwanted variations of output voltage because of input voltage or load resistance fluctuations , an H11C wired as a liniear - model unilateral pnp transistor in a stable different amplifier configuration is connected into the galvanically isolated negative- feedback loop.

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2 Comments

Good circuit for smps,please add another circuit for smps power supply with helpful for your support.

Good circuit for smps,please add another circuit for smps power supply with helpful for your support.


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