Connect with us

Charging plate capacitor to a high voltage

Discussion in 'General Electronics Discussion' started by Oseania, Feb 13, 2015.

Scroll to continue with content
  1. Oseania


    Sep 18, 2014

    I have two copper sheets that are about 10mm apart from each other. The sheets are separated by air. I would need to impose a DC voltage of about 1kV between these plates. I would also need to be able to control this voltage by dropping it to around 800V in 10ms. Is this doable?
  2. VMagno


    Feb 11, 2015
    Sounds like the Casimir effect at first. I'm sure it's possible but I can't contribute too much to that, I'll give this a bump, hopefully someone can help.
  3. duke37


    Jan 9, 2011
    The voltages you are considering are within the properties of easily available components.
    You will first of all have to consider how to generate the voltage. This can be done by a boost converter from a low voltage or from a high voltage mains transformer. The capacitance will be very low so the current and energy requirement will be low.

    To drop the voltage a specific amount, connect a discharged capacitor across the sheets. A series resistor will set the time that is required. The capacitance required will be about one fifth that of the copper sheets.
    CDRIVE and BobK like this.

    CDRIVE Hauling 10' pipe on a Trek Shift3

    May 8, 2012
    I'm disappointed in myself. I read Oseania's requirements and intentionally didn't read any replies, as I wanted to submit my own simple but clever solution. Instead I made myself another Vodka & Grapefruit, gave up and read Duke's solution. :D

    Good thinking Duke!
    Arouse1973 likes this.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day