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  1. bertus

    help with IR2110 chips

    Hello, When the Vpeak is about 55 Volts, the effective voltage will be about 39 VAC. The 230 VAC is an effective voltage. The peak voltage will be about 320 Vpeak. There is a factor of square root 2 between VAC and Vpeak...
  2. bertus

    Optocoupler & mcu

    Hello, You do not need D2. It also would be in the wring direction. Bertus
  3. bertus

    arduino and raspberry pi books on the internet archive

    Hello, @kellys_eye I have corrected the link. There are 41 books in the link (at the moment). Bertus
  4. bertus

    What are specs on this cap?

    Hello, The capacitor is an 100 nF or 0,1 uF 5% capacitor of 400 Volts. Read this page for more info: https://easyelectronicsproject.com/testing-components/capacitor-code/ Bertus
  5. bertus

    help with IR2110 chips

    Hello, An other geat source of information can be found on the pages of the EDUCYPEDIA: http://educypedia.karadimov.info/electronics/electronicaopening.htm Bertus
  6. bertus

    arduino and raspberry pi books on the internet archive

    Hello, Here I found a series of books for arduino and raspberry pi: arduino and raspberry pi books Bertus
  7. bertus

    help with IR2110 chips

    Hello, There are delays of 500 us between the pulses. Bertus
  8. bertus

    help with IR2110 chips

    Hello, Counting the delays in the seqence, i woud say it is for 50 hz Bertus
  9. bertus

    help with IR2110 chips

    Hello, The program will give pulses in positive and negative direction with buildin delays. Bertus
  10. bertus

    DIY chalk stirrer

    Hello, Where are you located? The given motor is 110 V AC. You could switch it on and off with a relay or SSR. When you are in germany, I would expect an 230 V version. Bertus
  11. bertus

    help with IR2110 chips

    Hello, Yes, as said pin 8 and 9 are the outputs (control signals for the H-bridge) of the arduino. Bertus
  12. bertus

    help with IR2110 chips

    Hello, Do you want to create a sine wave? Then have a look at SPWM (sine wave pulse width modulation). https://www.homemade-circuits.com/arduino-spwm-generator-circuit/ You can use the signals on pin 8 and 9 to drive your H-bridge. Bertus
  13. bertus

    Tektronix 2235 issue

    Hello, Perhaps the attached PDF will tell you more about the use of an oscilloscope. Pages 44 and 45 tell you about the probe compensation. Bertus
  14. bertus

    help with IR2110 chips

    Hello, Does this page help? https://www.bristolwatch.com/ele4/RI2110.htm And a more extended explanation here: https://forum.arduino.cc/t/tahmids-h-bridge-does-it-work/545100 Bertus
  15. bertus

    help with IR2110 chips

    Hello, With M2 and M3 activated will be one direction of the current. With M1 and M4 activated will be the other direction of the current. Bertus
  16. bertus

    help with IR2110 chips

    Hello, As far as I can see you already have a H-bridge. https://en.wikipedia.org/wiki/H-bridge Bertus
  17. bertus

    Year 2038 problem.

    Hello, Will our systems fail on 19 jan 2038? https://en.wikipedia.org/wiki/Year_2038_problem Bertus
  18. bertus

    Home Based Income as an Electronics Hobbyist

    Hello, I have been using linux on my home computer since there was a virus hose on windows 98. At the moment I am running OpenSuse Tumbleweed. That is a linux distribution that always gets the latest tested software and will always be up to date: https://www.opensuse.org/#Tumbleweed With some...
  19. bertus

    And now something weird

    Mouse cleaning up the garage:
  20. bertus

    Q954 unable to find data sheet

    Hello, Perhaps there is some info in the following thread on eev: https://www.eevblog.com/forum/repair/help-me-pick-a-triac-to-fix-my-old-dremel/ Bertus
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