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16th March 2010, 10:54 PM
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#1 |
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diyAudio Member
Join Date: Jan 2010
Location: Lisboa, Portugal
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Help designing a psu pcb - fuses where?
Hi all,
I'm designing a power supply pcb (single layer) for a 150W class AB amplifier. The rectifier is off board. I'm using 5 4700uf 63V caps per rail and a 100nF bypass cap. I'd like to ask if the drawing is fine or is something I should change. I put the o fuses after the caps but I see in some psu's the fuses located before the rectifier. Where should they go for optimal protection? The eagle drawing is attached. Thanks! 
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Kind Regards, Paulo. |
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16th March 2010, 11:18 PM
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#2 |
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diyAudio Member
Join Date: Apr 2008
Location: Carlisle, England
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Fuses should go before the rectifier in case the rectifier goes.
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http://www.murtonpikesystems.co.uk PCBCAD40 pcb design software. |
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