peckcj
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Everything posted by peckcj
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Thank you. Would you have any recommendations on how to deplete that standing voltage faster without having to change my C1 type?
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Thank you, I'll try that. Also, my C1 capacitor is a 20,000 mF 63V electrolytic that is holding a charge after I power down, so I need to add a bleeder resistor across the terminals. Do you have a recommendation on the size of resistor?
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Yes....my mistake :-[ Thank you Could you elaborate on this please? What is the difference between the output 0V and the PS 0V?
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I've built my PSU and everything works as expected ;D . My only issue is as follows... I have 2 LED panel meters that I will be using for voltage and current displays. They are both PM129B units (http://www.circuitspecialists.com/images/PM129A&B.pdf). I got the voltage meter to work fine, but the current meter is giving me a headache. I am using R7 as the shunt resistor, and since I built the 5 amp version, that resistor is valued at .27 ohm. When I connect the meter across R7, I get high reads...750-1200mV when I have a loading resistor drawing .5 amps. The meter is set at the 200mA range. Should I add another shunt resistor into the scheme that is better suited for this 200mA meter? I was thinking .40 ohms.
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Hello all, My PCB is made, and all components have been purchased, but I had one question I need some assistance with. I am making the 5A version, with three MJ11016G paralleled transistors. My question is: I'll be using three emitter resistors (0.33 Ohm 5W), but I'm a little unclear on how I should wire them. My initial thought is to wire each one in series with the emitter before I connect all three emitters together for the parallel connection. See pic.