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Thread: PWM regulator / controller

  1. #1
    Flashaholic*
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    Default PWM regulator / controller

    Hi, I am looking for a modest capacity voltage regulator.

    ( EDIT - It is really a PWM controller for a brushless DC fan that I am looking for. I originally used the wrong terminology.

    I was originally thinking about using a simple incan pwm controller for this. Still would probably work.


    This is not for LED, so I don't need a current regulator.

    I looked at taskled.com and it looks like right now he is only offering current regulators.

    Nominal needs
    ~ 12 volt input
    ~ 1 amp or so
    - ideally pretty rugged
    - easy to connect up to, maybe a knob if possible
    - PWM is fine
    - Just need a couple of set points, but continuously variable is also fine.
    - Prefer something more efficient than a variable resistance / potentiometer.
    - SIMPLE interface.

    There used to be a list of drivers on a web page somewhere. Feel free to just point me to it if you happen to know where it is.

    Thanks

    HarryN
    Last edited by HarryN; 04-11-2020 at 10:17 AM.
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  2. #2

    Default Re: Voltage regulator

    DCDC converters can be found so cheap you can buy a dozen for spares.

    Heat-shedding potting compound and a heatsinked case. . .

  3. #3
    Flashaholic* DIWdiver's Avatar
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    Default Re: Voltage regulator

    What's your power source?

  4. #4
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    Default Re: Voltage regulator

    The power source will be either AA or 18650 pack - still thinking about it. Nominal 12 volt ish.

    This particular item is for a brushless DC fan motor. Reducing voltage is one approach but they can be unstable at too low of voltage so the recommended approach is PWM control.

    For this application, I want a good quality one from a professional, not a random amazon version.

    Does anyone know where the list of drivers is?
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  5. #5

    Default Re: Voltage regulator

    Harry, your website's throwing up all kinds of security risk errors from google. . .

  6. #6
    Flashaholic* DIWdiver's Avatar
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    Default Re: Voltage regulator

    PWM dimmers are often used with LED strings, nominally 12 or 24V. I would bet Mean Well makes one, and they are pretty professional.

  7. #7
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    Default Re: Voltage regulator

    Quote Originally Posted by john61ct View Post
    Harry, your website's throwing up all kinds of security risk errors from google. . .
    Hi John - thanks for the note. It has been a while since I updated my CPF profile, so I did that today, including my (newer) home page.

    I still own the other web site but I haven't purchased an SSL certificate for it so google likes to imagine that it is unsafe.

    Appreciate the heads up.
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  8. #8
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    Default Re: Voltage regulator

    Quote Originally Posted by DIWdiver View Post
    PWM dimmers are often used with LED strings, nominally 12 or 24V. I would bet Mean Well makes one, and they are pretty professional.
    Thank you for looking at the thread. I updated the title to be more aligned with my actual use.
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