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  1. Alec_t

    help with IR2110 chips

    Note that C2,C6 are ceramic types.
  2. Alec_t

    help with IR2110 chips

    Did you see this link?
  3. Alec_t

    help with IR2110 chips

    No chance. The original Fig 8 image on the author's web-site is blurred.
  4. Alec_t

    help with IR2110 chips

    This is an international forum. Which global time zone are you in and what is 'early'?
  5. Alec_t

    making two half bridges a "whole" h-bridge ir2103 and 55v bidirectional current

    Use the 'Report' button and ask a mod to close the thread.
  6. Alec_t

    Hello. I am finding the one LTspice model.

    Which aspects of the regulator are important to you? Can't you just use a 1.2V ideal voltage source as a basis for its model?
  7. Alec_t

    Has anyone got this universal analog output circuit to work?

    Welcome to maker.pro, rashid_s! Did you notice this thread is 11 years old?? Better to start your own thread if you expect answers.
  8. Alec_t

    help with IR2110 chips

    That's correct. So in LTspice you can use two pulse voltage sources each with a 20ms period and a 50% duty cycle. Give one source an 'off' voltage of 0 and an 'on' voltage of 3.3. Give the other source an 'on' voltage of 0 and an 'off' voltage of 3.3.
  9. Alec_t

    help with IR2110 chips

    You could use two pulse voltage sources operating in anti-phase, e.g. one switching between 0V and 5V while the other switches between 5V and 0V.
  10. Alec_t

    help with IR2110 chips

    Deleted
  11. Alec_t

    help with IR2110 chips

    Logic-level voltages. Have you checked the datasheet?
  12. Alec_t

    Speakers and Bass Frequencies

    I don't know, but I'd surmise that the coil suspension has been changed to allow greater throw. The small and large speakers may have similar bass power outputs, but have you seen any figures for the relative harmonic distortion levels?
  13. Alec_t

    Understanding audio splitter in reverse

    If you can dismantle the two sockets to get access to the internal wiring, there is likely enough space to solder in a series resistor in each.
  14. Alec_t

    Yamaha PSR s710 no sound please help

    That suggests the pre-amp (at least) isn't working, or else the input connection to it is bad. If you can identify the pre-amp and power amp sections, use a test meter to check if they are getting power supplied. If you can locate a schematic or service manual for the keyboard it would be helpful.
  15. Alec_t

    Oh brother!

    Good to know it's working ok.
  16. Alec_t

    Yamaha PSR s710 no sound please help

    The keyboard's been out in the rain for a month and a half? Crikey. Does the headphone output work correctly?
  17. Alec_t

    Yamaha PSR s710 no sound please help

    Welcome to maker.pro! Does anything function correctly (display, midi, power supply, indicators/lights ......)?
  18. Alec_t

    Oh brother!

    Is there a movable paper-guide to cater for different document sizes when scanning?
  19. Alec_t

    How To Increase back EMF of Inductors?

    Please post a schematic of your circuit, with identifiers for all components, and component values.
  20. Alec_t

    The Future of Television

    It's already happening, given the number of fake videos and the amount of misinformation on the internet.
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