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  1. crutschow

    I want to make a speed limiter for my motorcycle

    Then obviously you can never get full power from the engine.
  2. crutschow

    Is it possible to build an homemade mobile signal amplifier?

    The way I heard that was "On a walk together what did the mother tomato say to the baby tomato when he was lagging behind"?
  3. crutschow

    Snubber circuit

    What "improvement" do you think adding a transistor will have?
  4. crutschow

    Step up/Step Down Transformer Setup to Run 1.5 Ton AC For Electric Consumption

    There is nothing you can do with transformers or an inverter that will reduce the power consumption of the AC unit, as they just convert electrical energy from one form to another. All those techniques have an efficiency of less than 100%, so they will actually increase the energy required to...
  5. crutschow

    Voltage limiter 9V and above

    Something to remember, is that floating nodes in electronic circuits can cause odd or flaky results.
  6. crutschow

    need guidance making a voltage regulator

    Yes, I figured that was the likely reason. Just pulling your chain a little. :)
  7. crutschow

    need guidance making a voltage regulator

    Could you elaborate on that? ;)
  8. crutschow

    Asus M515U laptop charger snapped into 2

    If you want a good, permanent solder connection, here's how to do that.
  9. crutschow

    Voltage limiter 9V and above

    Glad that's settled.
  10. crutschow

    need guidance making a voltage regulator

    Perhaps a unit like this would work.
  11. crutschow

    Voltage limiter 9V and above

    That's the voltage you get with no load, due to the current through R4 from the Ref voltage, although it should be less than 2.5V.
  12. crutschow

    Voltage limiter 9V and above

    Do you have a load on the MOSFET output? It could act erratically without some load.
  13. crutschow

    Voltage limiter 9V and above

    Yes, the current through that resistor due to that voltage drop is what generates the hysteresis voltage change at the Ref input to the TL431.
  14. crutschow

    Voltage limiter 9V and above

    As I noted, that provides a small amount of positive feedback for hysteresis of the trip point, not negative feedback. Only negative feedback would give a possible concern about stability. Since the circuit is acting as a comparator with only two stable states, your continuing concern about...
  15. crutschow

    Voltage limiter 9V and above

    9.4.1 Clearly states that as comparator, it is operating open-loop and thus cannot have phase-margin problems, since it has no negative feedback. Why do you keep implying otherwise?
  16. crutschow

    Voltage limiter 9V and above

    That's when using the device as part of a linear regulator. Here it's being used as a comparator.
  17. crutschow

    Voltage limiter 9V and above

    Then it would appear you have a bad (cold) solder joint or incorrect wiring on the soldered circuit. This is a nit, but you don't have a voltage limiter circuit, that's a low-volage cutoff circuit with the TL431 acting as a comparator with a built-in reference voltage. The schematic looks...
  18. crutschow

    LC oscillator and resonance frequency

    Here's the sim when applying a 1Vpk sinewave to the tank for 1 1/4 cycles at its resonant frequency.
  19. crutschow

    LC oscillator and resonance frequency

    The operation of an LC tank circuit is not complicated conceptually if you look at it from an energy point-of-view (which does require a little simple math). Once there is energy stored in an ideal tank, the energy is simply transferred back and forth between the capacitor (all the energy when...
  20. crutschow

    Hp power use

    That could be reactive (inductive) current that generates the magnetic field.
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