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Weird Voltage readings after rectifying
Weird Voltage readings after rectifying
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Old 27th November 2006, 07:23 PM   #11
kvholio is offline kvholio  Netherlands
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Location: leeuwarden
+- 43 volts is too high for lm4780.
Read the datasheet...

With kind regards,

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Old 27th November 2006, 08:44 PM   #12
superR is offline superR  Netherlands
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Location: Rotterdam
those voltages were measured while nothing was connected. I gues the voltage will drop when connecting the amp. And btw, it's just 2 volt over the max specified voltage. Can that do any harm to the amp?
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Old 28th November 2006, 07:20 AM   #13
AndrewT is offline AndrewT  Scotland
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Go and study the datasheet.

Going to the limit invites lots of problems, going beyond the limit is asking for trouble.
regards Andrew T.
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Old 28th November 2006, 09:36 PM   #14
Minion is offline Minion  Canada
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Location: Cowican Bay , vancouver island
You might try regulateing the Voltage down a Bit, to say 35v, It will give you better performance as there won"t be Voltage Fluctuations and it solves the problem of the Voltage being a bit to high....It will also cost a bit more as high current regulators can get a bit pricey and will make the PSU a bit harder to build but it will be worth it in the end....

Good luck
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