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  1. #1
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    help on DIODE

    Do you know any DIODE for high power application which has the following specifications:

    Forward current of 100 mA
    Reverse voltage of 100KV

    well, this specifications could be at least:

    Forward current 20mA
    Reverse voltaje of 20kV


    thanks nebisman


    Thx for your repply EEHardware if you don't tell me it I had never known it. The sense for do this question to the elektrodians is to receive advices of more economical or reliable way to solve a problem from experimented friends about a new field for me.




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  2. #2
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    Re: help on DIODE

    These are built up from many diodes in series. Each diode has a high value resistor in parallel with it so that the reverse voltage divides equally between the diodes. Sometimes there is a small capacitor also in parallel with each diode so that transients also divide equally between the diodes.

    Then these diodes R and C are put in a special housing with special surfaces to prevent flash over around the outside surface.

    I have also seen PC boards made of special material with ceramic posts to support the junctions between the diodes.

    In this case, special hermetic sealing is needed to prevent pollutants in the air from depositing on the posts and PC board to form conducting films.



  3. #3
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    Re: help on DIODE

    Can you use several diode In series?



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    Re: help on DIODE

    Well I can use several diodes but still I need and advice about this DIODES. What kind of diodes?



  5. #5
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    Re: help on DIODE

    What kind of help? Recovery time? Size? Temperture? Cost?

    http://electronic-components.globals...Voltage_Diodes

    There are thousands of references using Google.

    search for "high voltage diodes"

    Examples:

    http://www.fujisemi.com/test_web/search_diode.htm

    http://www.voltagemultipliers.com/



  6. #6
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    Re: help on DIODE

    in those old times there was TV20 which used to rectify the EHT voltages of picture tubes in tv's.but not sure still in market.



  7. #7
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    help on DIODE

    go to google, and search which do you want, you will
    get .
    Good good study, Day day up!



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