| Author |
Message |
    
Jester
| | Posted on Monday, November 26, 2001 - 12:43 pm: | 
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I need a 20 amp power supply. If I wire two 10 amp power supplies in series, will I have a true 20 amp supply of power. Thx |
307
| | Posted on Monday, November 26, 2001 - 1:09 pm: |
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It will IF they are identical Power Supplies however a 25 amp is cheap.... |
Just ME
| | Posted on Monday, November 26, 2001 - 9:44 pm: |
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Jester, Be careful how you connect the two supplies together...power supplies known as switching supplies can interact with each when run in parallel. I wouldn't parallel switching supplies. Use only power supplies that have the big heavy transformers in them (they're not "switching supplies").
Also, it is always smart to use a .05 Ohm or .1 Ohm 20 watt resistor in series with the positive lead of each supply ( you need two resistors total). The resistors balance the current supplied by each supply and acts like a fuse if one of the supplies develops a serious problem while parallel.
You should also adjust the output voltage of the supplies to match each othe as closely as possible. This will prevent the supplies from trying to regulate each other. Good Luck
Just ME |
Bigbob
| | Posted on Tuesday, January 01, 2002 - 4:20 pm: |
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HEY JESTER parallel 2 6amp diode rectifiers in each positive lead that will prevent cross/reg.and as for fuses use fuses |
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