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In Reply to: RE: help with reading a rectifier rating chart ...... posted by vinnie2 on April 20, 2015 at 06:44:12
Sounds like I got at least two different opinions. I have been running it for about a half hour this way and no red plates or any other trouble so far. I am guessing from that fact and from what I got from everyone that it is ok as is?
Follow Ups:
The bottom line is that each diode carries half the current. Paul added that simply complying with the DC output rating doesn't mean the rectifier is necessarily within the more important peak current limitation. Peak current varies as a function of input capacitance and the resistance of both the source and load. If you know those values, PSU will give you a good idea as to peak current.
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Buy Chinese. Bury freedom.
I designed this power supply on psud using the parameters actually in the amp now. I just ran it again with no error warnings, so I guess that means it must be ok?
I wouldn't rely on a PSUD warning for this. You should compare the peak current it predicts to the manufacturer's rating, then decide whether you have sufficient safety margin. I can't tell you what that margin should be, in part because all the different 5AR4s behave so differently. Someone else here can probably guide you in that.
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Buy Chinese. Bury freedom.
ok, thanks.
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