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peckcj
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Posts posted by peckcj
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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? -
The meter is a voltmeter so it does not have mA ranges.
Yes....my mistake :-[
Thank you
It might need its power supply 0V connected to the power supply 0V, not the output 0V.
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.
0-30 Vdc Stabilized Power Supply
in Projects Q/A
Posted
Thank you.
Would you have any recommendations on how to deplete that standing voltage faster without having to change my C1 type?