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Old 11th September 2008, 02:48 AM   #1
xyz9915 is offline xyz9915  Pakistan
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Default modified ATX (current mode)

Hi!
The attached file is a modified schematic of ATX power supply which I want to use as current mode supply. So the output current from current sense transformer was used at Pin4 (Deadtime Control) of IC TL494, through variable resistor to adjust the desired current (9A). Please comment if this technique can deliver a constant current output. Voltage regulation is not necessary.

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Old 11th September 2008, 07:25 AM   #2
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current has to be sensed from the switching transformer (t3)
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