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  1. S

    Lm393 ne555 overcurrent protection problem

    I repaired it myself. "Thanks"!
  2. S

    Lm393 ne555 overcurrent protection problem

    I am trying to adjust my overcurrent protection with this well known schematic but even the slightest change in load, or just touching something on the board, even static electricity from distance just gets the protection excited with no reason. I have tried decoupling capacitors and built the...
  3. S

    What are ways to read ir2153 output if it is oscillating

    Since it is 50% duty cycle you must measure half the voltage from the ir2153 supply voltage with a cheap multimeter, or 100% input voltage with a true rms multimeter. Other way is to connect 2 LEDs with a proper resistance and lower down the frequency so you can see the blinking between the...
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    Uni SMPS 300W

    how about this?
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