clamp

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  1. Dr. Heinz Doofenshmirtz

    Where to clamp inputs for op-amps with zero headroom?

    In op-amps where the absolute maximum input voltage range is limited to the range of the supply rails, is it sufficient to clamp inputs right at the supply rails or should they be clamped a bit lower/higher to allow for wiggle room? For example, I'm designing a single-supply audio circuit and...
  2. B

    Burning of Resistor in the Clamp Circuit of an SMPS

    This circuit has been designed and optimised. When implementing on PCB R3 resistor is burning up. Any reasons or suggestions for this to happen? Circuit is stable and safe when supplied with 190V and any higher R3 starts burning up. R3 has a power rating of 0.125W went with the parameters of PI.
  3. mike_the_begginer

    Uni-t UT210E current measurements

    Hello! I have a UNIT-T UT210E clamp meter, which I think it has a problem regarding the current measurements. I will describe the problem below: when I measure current, if the wire is positioned into the center of the clamp (the center marked with the 2 arrows) then it measure 10.16 Aac. But...
  4. vol.2

    Building and RGB input Circuit. Choosing between input options on Mux chip.

    Working on an old Toshiba TV with a composite input that I recently brought back from the dead (had to replace the vertical output IC). I have a lot of older video equipment that has RGB outputs like microcomputers, etc, and I want to use this CRT to receive signal from those sources via RGB...
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