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    12v battery charger circuit

    Hi to all My car battery is 55A lead acid battery.I want to charge my battery with smps battery charger with tl494 Battery charger can only outputs 10a, 14.4v But i want 4a to charge battery Have you got any battery charger circuits based on tl494 Please share them if you have
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    Atx modify help me

    Hi to all I want to modify atx power supply to battery charger which gives 14.4 v 1-7A How to do this I have done this but there is a problem : I rewound transformer windings to 5 turns Original turns were=4 for 12v Then i check output voltage is 18v with no voltage control When i load a 12v...
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    Output voltage regulation help me

    Hi to all If smps power supply output voltage is 50v, shall we decrease any voltage (for instance 25 or 15v) with feedback control. If So , what happens in circuit Will power supply work fine or not ? Thanks in advance
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    Need with homemade inverter with tl494

    I am new here. I made inverter 12 v to 220vdc with tl494 but when i connected a load (resistor)with 260 ohm to output side ,output voltage dropped down from 300 v to 100v Please help me I need 300 vdc without load and with load Ic : tl494 Operation pull -push Frequency 33 khz Transformer...
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