Projet SMPS very popular, with a change made by me, will it work?

albert_emule · 25th February 2009, 01:59 PM

Projet SMPS very popular, with a change made by me, will it work?

The original project was operated with a topology half bridge, I rectified to operate as full bridge. will operate this way?

http://img26.imageshack.us/img26/1456/smpsfulbridge.png

albert_emule · 25th February 2009, 10:14 PM

.

ifrythings · 28th February 2009, 12:02 PM

It should work just fine.

Be warned though, there is no current limiting at all, you may want to add that in.

sawreyrw · 1st March 2009, 12:40 PM

It doesn't look like you changed anything related to the power transformer. The voltage applied to the transformer will be approximately twice as much in a full bridge, so you need to double the number of turns on the primary or double the PWM frequency. Increasing the frequency could cause trouble with power losses or compensation, so be aware of that.

25th February 2009, 01:59 PM	#1
albert_emule diyAudio Member Join Date: Feb 2009	Projet SMPS very popular, with a change made by me, will it work? Projet SMPS very popular, with a change made by me, will it work? The original project was operated with a topology half bridge, I rectified to operate as full bridge. will operate this way? http://img26.imageshack.us/img26/1456/smpsfulbridge.png

25th February 2009, 10:14 PM	#2
albert_emule diyAudio Member Join Date: Feb 2009	. .

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28th February 2009, 12:02 PM	#3
ifrythings diyAudio Member Join Date: Oct 2005	It should work just fine. Be warned though, there is no current limiting at all, you may want to add that in.

1st March 2009, 12:40 PM	#4
sawreyrw diyAudio Member Join Date: Apr 2006 Location: Minnesota	It doesn't look like you changed anything related to the power transformer. The voltage applied to the transformer will be approximately twice as much in a full bridge, so you need to double the number of turns on the primary or double the PWM frequency. Increasing the frequency could cause trouble with power losses or compensation, so be aware of that.