Reducing PSU Voltage

hernanstafe · 9th March 2007, 04:37 PM

Ok i got a PSU built using a 220/110V Transformer, i made a pcb which creates a "fake" ground so i get 70+70v off the rectifier. I want to reduce that to 50+50v is there a way to do it, not using resistors cause it'll heat up a whole lot

AndrewT · 9th March 2007, 06:14 PM

Hi,
whether you use resistors or a pair of linear regulators, you will still generate a lot of heat.

SMPS may be your solution.

9th March 2007, 04:37 PM	#1
hernanstafe diyAudio Member Join Date: Feb 2007 Location: Argentina	Reducing PSU Voltage Ok i got a PSU built using a 220/110V Transformer, i made a pcb which creates a "fake" ground so i get 70+70v off the rectifier. I want to reduce that to 50+50v is there a way to do it, not using resistors cause it'll heat up a whole lot

9th March 2007, 06:14 PM	#2
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, whether you use resistors or a pair of linear regulators, you will still generate a lot of heat. SMPS may be your solution. __________________ regards Andrew T.

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