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Thread: Need help with 35W CO2 laser power supply.

  1. #1 Need help with 35W CO2 laser power supply. 
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    I am needing help with the power supplies capacitor rating. It calls for 0.1uF 20,000 volt cap but am having hard time finding one.
    I am using a 15,000 volt/30mA NST and have a full wave bridge recitifier but I need the capacitor to help smooth the pulsing DC.
    Does anyone know of a different capacitor that would work just as well?


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  3. #2  
    Forum Professor Wild Cobra's Avatar
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    Well, if you can find four 0.1 uF 10,000 volt capacitors, use a series parallel configuration. Two in parallel will give you 0.2 uF at 10,000 volts. When you then put two of these parallel arrangements in series, you double the voltage but half the capacitance.


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  4. #3  
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    Thanks, I never could find anywhere the way that capacitance was calculated in series and parallel circuits.
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