Re: Electronic dimmer as Variac

From: Watson A.Name - \ (NOSPAM_at_dslextreme.com)
Date: 07/06/04

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    "DaveC" <me@privacy.net> wrote in message
    news:0001HW.BD0EC25600339262F02845B0@news.individual.net...
    > I want to turn up a switching power supply slowly after repairing it,
    so as
    > to see if anything else is damaged. I have no Variac, and I could use
    the
    > series light bulb trick, but I already have a light dimmer I'm using
    as a
    > variable-temperature control for my soldering iron that could do
    double-duty
    > in this application.
    >
    > I know that the SMPS, when running correctly, will be a load pulse at
    75 kHx.
    > Has anyone tried using a dimmer as an "electronic variac"? Is it
    feasible?

    Read the instructions that came with the dimmer. It probably says that
    you're only supposed to use it with a resistive load such as a light
    bulb. It'll probably burnout if used on a PS.

    > Thanks,
    > --
    > DaveC
    > me@privacy.net
    > This is an invalid return address
    > Please reply in the news group
    >


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    Relevant Pages

    • Re: Electronic dimmer as Variac
      ... > I want to turn up a switching power supply slowly after repairing it, ... > series light bulb trick, but I already have a light dimmer I'm using ... > I know that the SMPS, when running correctly, will be a load pulse at ...
      (sci.electronics.repair)
    • Re: Electronic dimmer as Variac
      ... > I want to turn up a switching power supply slowly after repairing it, ... > series light bulb trick, but I already have a light dimmer I'm using ... > I know that the SMPS, when running correctly, will be a load pulse at ...
      (sci.electronics.design)
    • Re: Electronic dimmer as Variac
      ... > I want to turn up a switching power supply slowly after repairing it, ... > series light bulb trick, but I already have a light dimmer I'm using ... > I know that the SMPS, when running correctly, will be a load pulse at ...
      (sci.electronics.basics)
    • Electronic dimmer as Variac
      ... I want to turn up a switching power supply slowly after repairing it, ... series light bulb trick, but I already have a light dimmer I'm using as a ... Has anyone tried using a dimmer as an "electronic variac"? ...
      (sci.electronics.repair)
    • Electronic dimmer as Variac
      ... I want to turn up a switching power supply slowly after repairing it, ... series light bulb trick, but I already have a light dimmer I'm using as a ... Has anyone tried using a dimmer as an "electronic variac"? ...
      (sci.electronics.design)