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  1. GPG

    thyristor c126 question

    Its a 12A 600V triac No special features. search your local suppliers to find one in the package you need
  2. GPG

    Drive two relays based on input voltage.

    No the comparator is open collector.Pullups needed though
  3. GPG

    audio glove ... project ... thing

    http://techxplore.com/news/2015-12-electromagnets-sensors-track-motions-fingers.html
    • GPG
    • Post #27
    • Forum: Audio
  4. GPG

    Thermostat

    "modified sine wave" . From another post by martine. Never connect a Capacitor supply to anything but an actual sine wave. The higher order harmonics will destroy the power supply at a minimum due to over-current. The 560Ω is only there to absorb the odd glitch So no inverters unless they are...
  5. GPG

    Sine wave shape distorts when transformer is connected.

    Insufficient info, though you did remind me of anothr post. Ta
  6. GPG

    Sine wave shape distorts when transformer is connected.

    Another post full of information. PI proportional/integral? PWM sine?
  7. GPG

    Converting Bluetooth headphone to hearing aid.

    Been looking for something like this. TV has Audio out both raw and volume controlled. Bluetooth? TX at TV, RX headphones? And I'll meet your 93 and raise you one:D
  8. GPG

    LED Strips Display driven from 555 / 4017 counter

    Second that
  9. GPG

    Thermo Electric Generator - Variable resistance USB Circuit

    Still need a converter but perhaps you could switch one from charge (the battery) to charge the phone.
  10. GPG

    Thermo Electric Generator - Variable resistance USB Circuit

    A good idea. Google SEPIC
  11. GPG

    oscillator help

    "For a 3v supply, the peak-to-peak value of the waveform will be 6v. The "Q" of the circuit is 2. Not 100". Not an accurate statement.
  12. GPG

    Phone line (modular wire) wattage capacity

    If you have reversing lights the run could be even shorter assuming an RF linked system
  13. GPG

    Run this 1.5v pump from a 18650 battery

    Info: http://lygte-info.dk/review/batteries2012/Common18650Summary%20UK.html http://batteryuniversity.com/learn/article/lithium_based_batteries
  14. GPG

    Run this 1.5v pump from a 18650 battery

    Yes but it is wasting more power than the pump uses Simulators need a reference to crunch the numbers.
  15. GPG

    Drive two relays based on input voltage.

    Needs 2 relays. You could connect the drains to the gate of the other fet with a diode, (wired or) so both on is not possible. Whichever is first dominates
  16. GPG

    Power bank plugged on charger all the time

    Depends how "smart" the charger is. Details? and battery?
  17. GPG

    Drive two relays based on input voltage.

    The output from the control is a ratio of the 5V. If the 5V changes the set point is unaffected.
  18. GPG

    Drive two relays based on input voltage.

    The voltages are derived from the 5V supply. AK you can use the 5V instead of the reference. You also need pullups on the comparator outputs.
  19. GPG

    Drive two relays based on input voltage.

    Do you have a link to the specs on the control?
  20. GPG

    Drive two relays based on input voltage.

    And I wonder if the signal is ratiometric to the supply, it wold make it easier. And are you switching the battery or ground?
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