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  1. S

    DC booster converter strange behaviour

    just 2 wires from the booster and all is isolated from bench. It must be a fault with current regulation because it only happens when current is almost fully increased with potentiometer
  2. S

    DC booster converter strange behaviour

    I have just bought this and started testing it with the globe when it got burned. I'm sure I didn't reverse polarities. Its original mosfet was rated at 80V/80A. Don't know how it could get shorted when the fuse blew. Now I'm using mosfets rated at hundreds of volts but only up to 30A, because...
  3. S

    DC booster converter strange behaviour

    No, only when load connected
  4. S

    DC booster converter strange behaviour

    input is 12V, output for the globe was between 13-14V, with other loads output can be set up to 50V. So with any output voltage the input current increases far beyond of what the load needs.
  5. S

    DC booster converter strange behaviour

    Its 400W converter with output voltage and current regulation as pictured. Its original mosfet and 15 amp fuse got burned, however I didn't exceed any ratings. Now I'm trying several different mosfets that are rated much higher amps and volts than this booster can provide and this is what's...
  6. S

    ATX PSU strange behaviour

    Hi all, My PSU starts without connecting green and black, if I switch it off after running for a minute it won't start again ( even when green-black connected) untill it cools down, the inductors are making noise when it won't start. Any ideas which part is failing? thanks
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