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Power supply 2-12v/1A using PWM

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hydro

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Hi everyone...

Here is my problem.I have designed a few basic power supplies (+/-15 volts for some op amps and a basic power supply using an LM317).

Recently we have been asigned to design a power supply(low power) with an output of 2-12V/1A using PWM modulation.

Am i supposed to controlt the PWM duty cycle using thyristors?Is there a PWM ic?

Plz some help and if anyone one has a link for an actual schmeatic as all i can find is schmeatics for linear power supplies...

Thnx :idea: :lol:
 
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