[sdiy] Voltage regulator weirdness
Sudhu Tewari
loopstick at hotmail.com
Mon Aug 23 09:03:36 CEST 2004
Anyone have an idea why my little dual supply circuit is acting funny?
I split 30V into +/-15V using 78/7915 regulators. The 7915/neg side works
fine, but the positive supply drops from 15v to 13v after a few seconds of
power. I've disconnected almost all the filter caps which helped keep 15v
for a few more seconds, but it still drops to 13v.
Any ideas? IC aint getting hot, it's kinda heatsunk.... I'm baffled..
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