Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Register Log in
  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by crutschow

  1. crutschow

    Fixing board, Easy question HEX SCHMITT

    It could if one of the inputs is floating. All all the gates being used?
  2. crutschow

    Current sources in parallel...

    The currents will add as if there were one source until the voltage compliance of one of the real current sources is reached. Ideal current sources, such as in a simulator, have no such limit, of course.
  3. crutschow

    3½ Glorious Nixie Tube Digits!

    And not your last "Ouch" I expect. :rolleyes:
  4. crutschow

    3½ Glorious Nixie Tube Digits!

    But not more than a similar piece of electronics already built, was it?
  5. crutschow

    3½ Glorious Nixie Tube Digits!

    I always though Nixie tubes were short of a first or second generation electronic numerical display waiting for an improvement. I didn't care for the way the digits were displayed at different depths in the display with the wires from the unlit digits faintly visible in front of the lit digit...
  6. crutschow

    What can be the reason behind this tragedy?

    Are those outlets 230V to ground/neutral? Would be much safer if it were a split-phase 230V with 115V to ground.
  7. crutschow

    Failure of polypropylene motor-run capacitors

    I suggest you go with Max and find a name-brand, oil-filled paper run-capacitor as a replacement (of the same capacity and voltage, of course). It might be physically larger and more expensive, but it will likely be more reliable.
  8. crutschow

    20W Power Supply for Stereo Amplifier

    Typically those are referred to as amplifiers with a bridged output.
  9. crutschow

    20W Power Supply for Stereo Amplifier

    True. I forgot about the common ground between the plus and minus. :oops:
  10. crutschow

    20W Power Supply for Stereo Amplifier

    So that's an SMPS that uses mains AC as input power. The buck regulator is an SMPS that uses DC as the input power.
  11. crutschow

    20W Power Supply for Stereo Amplifier

    No, it's a full SMPS that converts one DC voltage to another. What's your definition of a "whole" SMPS That should work. Yes, it would.
  12. crutschow

    20W Power Supply for Stereo Amplifier

    It is a type of switched-mode power supply which reduces a DC voltage, rather like an automobile is a type of motor-vehicle. There are several types of switched-mode regulators, such a buck, boost, buck-boost, and line operated. It is not a line-operated switch-mode regulator. So it would not...
  13. crutschow

    20W Power Supply for Stereo Amplifier

    You could use a couple of high-voltage, buck switching regulators to reduce the rectified ≈40Vdc to the desired 24Vdc with low loss (example). This will provide a stable voltage for the amp, minimizing any distortion from fluctuations in the supply voltages. The IC switching regulator used in...
  14. crutschow

    Switching negative voltages with a transistor (revisited)

    Yes, for Q1 being a Darlington. Okay for my sim without. Missed that. :oops:
  15. crutschow

    Switching negative voltages with a transistor (revisited)

    Below is an LTspice sim of the circuit: As you can see, the output is going between 0V and -12V. I didn't have models for the transistors you have, but your circuit should operate similarly. Double check all your wiring. What load did you have connected to the output?
See more

Latest threads

New Articles From Microcontroller Tips

Back
Top