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This power supply lol

ninjatrent
ninjatrent 2 days ago

So I haven't blogged in so many years. Here's a power supply I'm working with at the moment. It's labeled YPG 20A HV SBEC for RC Model Airplane on Amazon but in the description it's being called a Brushless Speed Controller. Anyways, it's a mysteriously good SBEC power supply designed for powering RC aircraft. I originally bought it for a hexapod project but the servos were too cheap so now I've made a new wiring harness for a different application.YPG 20A HV SBEC for RC Model Airplane

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  • ninjatrent
    ninjatrent 1 day ago in reply to michaelkellett +1
    Yes. The best features are the variable voltage output. It's a adequate supply for small robotics
  • michaelkellett
    michaelkellett 1 day ago in reply to ninjatrent +1
    The usual problem with these low cost switching regulators is the huge amount of RF noise. I was looking at a claimed 400W DC-DC converter the other day (8.5 - 60V in, 8 - 60V out). It can manage the 400W…
Parents
  • michaelkellett
    michaelkellett 1 day ago

    I'm guessing that the power supply is the 2nd biggest thing, on the left of the battery.

    I looked up SBEC - and am not sure what you mean : Switching Battery Eliminator Circuit ?

    What's so good about it ?

    MK

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  • michaelkellett
    michaelkellett 1 day ago

    I'm guessing that the power supply is the 2nd biggest thing, on the left of the battery.

    I looked up SBEC - and am not sure what you mean : Switching Battery Eliminator Circuit ?

    What's so good about it ?

    MK

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  • ninjatrent
    ninjatrent 1 day ago in reply to michaelkellett

    Yes. The best features are the variable voltage output. It's a adequate supply for small robotics 

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  • michaelkellett
    michaelkellett 1 day ago in reply to ninjatrent

    The usual problem with these low cost switching regulators is the huge amount of RF noise. I was looking at a claimed 400W DC-DC converter the other day (8.5 - 60V in, 8 - 60V out). It can manage the 400W (just about) at its sweet spot for input and output voltages but the noise on the output is bursts of decaying 50MHz at 2x the switching rate with a max amplitude of 8V pk-pk.

    The other common issues are inadequate heat-sinking and junk capacitors (which fail early).

    MK

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