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joule thief (draw more power from a power supply?)
joule thief (draw more power from a power supply?)
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Old 6th November 2012, 06:51 PM   #11
Mooly is offline Mooly  United Kingdom
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joule thief (draw more power from a power supply?)
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Old 7th November 2012, 12:06 PM   #12
Osvaldo de Banfield is offline Osvaldo de Banfield  Argentina
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Originally Posted by Rundmaus View Post

it will not kill any human, but the back EMF created even by a 5V small-signal relay coil is high enough to kill LEDs, transistors or other semiconductor parts - probably also true for amplifier ICs!

Mmm, audio amplifier normally has high value caps in parallel that overdampes the spike. I believe can kill a led , but I doubt can kill an audio amplifier.
Osvaldo F. Zappacosta. Electronic Engineer UTN FRA from 2001.
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