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Class D Switching Power Amplifiers and Power D/A conversion

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Old 28th November 2006, 04:10 PM   #11
john65b is offline john65b  United States
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Gorilla,

I would be connecting the grounds of both power supplies together to form teh centertap and the two 19VDC leads to the AC input of the rectifier to get the pos/neg rail voltages. I would not be connecting them in series.
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Old 21st October 2009, 11:45 PM   #12
john65b is offline john65b  United States
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Actually, the other way around - connected the +20VDC of one laptop Power Supply to grnd of the other laptop Power Supply and now have a 20 0 -20 power supply.

It did not short and works fine...I had to correct myself from so many years back....
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Old 29th March 2014, 03:50 AM   #13
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Putting dc through a full wave bridge rectifier? At the least you should have reverse polarity protection. Right? The ones with 4 IC shave low voltage drop .1 v . I ordered one from China for 3.00. That drop beats diodes or Schottky diodes by far and very low power dissipation!
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