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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Voltage creep on Gainclone posted by Mike B on March 16, 2003 at 17:57:45:
200va@+/-25vdc.the lm1875 can draw 4amps at peak.
50vdc x 4amps = 200voltamps.
more va is better than less.
what voltage(s) are you feeding the chip ?
how is your psu configured ?
if you are doing +/- then it should be from 18vdc to 25vdc for a total of 36vdc or 50vdc.
if you go higher than +/-25vdc or 50vdc then you are getting so close to the upper soar limit --safe operating area-- that the chip starts wanting to protect itself by limiting the current draw.
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Follow Ups
- that chip needs at least - snkby 18:17:27 03/17/03 (1)
- chip - Owen 03:01:20 03/18/03 (0)
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