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  1. Alec_t

    help with IR2110 chips

    Since all eight coils are nominally the same you could sim the combination like this: The contents of a dotted rectangle represent four coils in series. Rload is arbitrary here.
  2. Alec_t

    help with IR2110 chips

    It would be if the bottom of that set/array of coils had a connection to ground. But the reactance due to all those coil inductances forms a voltage divider with the load they're driving, so the voltage across the load is lower than you're hoping for. Edit: As the coil voltages are being only...
  3. Alec_t

    help with IR2110 chips

    You had inductances, correctly added in series with the voltage sources (coils), in the asc file you posted previously. In case you've over-written it I'm attaching it here.
  4. Alec_t

    help with IR2110 chips

    Top left corner ? Your sim shows 128Hz. Your power coil array needs a ground connection. The sim needs a run time of more than 1 sec.
  5. Alec_t

    help with IR2110 chips

    I can't believe your L5 coil inductance is only a few nanoHenries!
  6. Alec_t

    help with IR2110 chips

    There are inductance calculators online.
  7. Alec_t

    help with IR2110 chips

    Yes. Your voltage sources also have significant inductance, which should be taken into account in the sim.
  8. Alec_t

    help with IR2110 chips

    The "-" is because V7 is sourcing power. Most of the available power is being dissipated by L1. Now give your voltage sources and transformer coils some realistic internal resistance.
  9. Alec_t

    help with IR2110 chips

    Where are nodes N002 and N005?
  10. Alec_t

    help with IR2110 chips

    Your sim coils and voltage sources have zero resistance, so give totally unrealistic resultIs. Ctrl+ left-click in the title of a waveform plot will give a drop-down box with average and rms values of a waveform.
  11. Alec_t

    help with IR2110 chips

    The turns ratio is 4 : 23, so the inductance ratio for LTspice will be the square of that, i.e. 16 : 529. See post #717 for the power per coil. Multiply by 8. Current depends on load, which will vary with motor type and speed.
  12. Alec_t

    help with IR2110 chips

    Use Alt+left-click on a coil to plot its power dissipation.
  13. Alec_t

    help with IR2110 chips

    That should give you 40V, with the current capability of two coils.
  14. Alec_t

    help with IR2110 chips

    The negative nodes of your voltage sources in the post #698 sim are floating, so no surprise the output tends to zero.
  15. Alec_t

    help with IR2110 chips

    This is the nearest I could quickly come up with :
  16. Alec_t

    help with IR2110 chips

    If all the coils are passed by a N pole at the same time then their outputs are in phase. You could wire them all in parallel and have 10V output at 8 times the current capability of a single coil, or you could wire them all in series and have 80V output with the current capability of just a...
  17. Alec_t

    help with IR2110 chips

    If the coils are all in phase then why do you show V1-V4 with 90* phase shifts in the sim?
  18. Alec_t

    help with IR2110 chips

  19. Alec_t

    help with IR2110 chips

    Here's a link to what I think you're asking for: https://maker.pro/forums/attachments/new-and-improved-asc.60370
  20. Alec_t

    help with IR2110 chips

    What inverter?
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