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PLACID BP HEATSINKS TOO HOT
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steppen  
#1 Posted : Sunday, November 22, 2009 5:43:49 AM(UTC)
steppen

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Location: brasil

Hi dear

i build a Placid BP , all the voltages are ok, the unit is working fine, but the 2 heatsinks
(near output) temperature reaches 71 degrees celcius and the other 2 64 degrees celsius without any load conected, too hot i think,
is it normal ?

best regards
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Beefy  
#2 Posted : Sunday, November 22, 2009 6:12:33 AM(UTC)
Beefy

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Posts: 62
It is a shunt regulator. Without a load connected, the entire current is running through the shunt transistors. If you connect a load, it will cool down.
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steppen  
#3 Posted : Sunday, November 22, 2009 6:18:19 AM(UTC)
steppen

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Posts: 8
Location: brasil
Thank you Beefy, good to know that,

best regards

steppen
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