Power Supply Requlation

microsim444 · 18th January 2009, 12:10 PM

Just one stupid question,

What is the meaning of regulated output, or Unregulated output in SMPS???

In a SMPS schematic I can see diodes and capacitors at the Transformer outputs, Those should do the regulation?? (as we know in Normal PSU)?

and the author of that supply wrote a NOTE on top of the ETD44 transformer.

Tempreture rises if supply in NOT regulated??

Any help about this?

jtkraj · 19th January 2009, 04:43 AM

Hi,
The regulation happens in the feed back section. It depends on the feedback gain. more the gain better the regulation.
The output diodes are capacitors are just rectifiers are filters.

18th January 2009, 12:10 PM	#1
microsim444 Account Disabled Join Date: Oct 2008	Power Supply Requlation Just one stupid question, What is the meaning of regulated output, or Unregulated output in SMPS??? In a SMPS schematic I can see diodes and capacitors at the Transformer outputs, Those should do the regulation?? (as we know in Normal PSU)? and the author of that supply wrote a NOTE on top of the ETD44 transformer. Tempreture rises if supply in NOT regulated?? Any help about this?

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19th January 2009, 04:43 AM	#2
jtkraj diyAudio Member Join Date: Jun 2008	Hi, The regulation happens in the feed back section. It depends on the feedback gain. more the gain better the regulation. The output diodes are capacitors are just rectifiers are filters.