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  1. pgib8

    clever vibration motor driver?

    @hevans1944 Here is what I have for now. I won't know for sure if this works until I build a prototype in 1 to 2 weeks and I'll post another update then. All parts have been carefully selected with a secondary emphasis on low price (assuming higher quantities). A second revision with...
  2. pgib8

    clever vibration motor driver?

    I can certainly do that and I appreciate your interest. Many years ago I heard of a cell phone that they stopped selling because it didn't break. As we all know most or many companies design their products to last past the warranty and then hopefully break soon after :) It's kind of funny how...
  3. pgib8

    clever vibration motor driver?

    It's not for a sex toy, funny though. Whenever I design a circuit, I want to avoid anything that causes noise as much as feasible. Having a brushed DC motor is already bad enough, so feeding it with a variable DC voltage is doing my part to have a clean circuit. And about the PWM, it know of the...
  4. pgib8

    Design help to control 2 relays

    I recommend NTD4963NT4G, but I'm not sure what you mean with "in sequence", a time delay?
  5. pgib8

    clever vibration motor driver?

    Thank you all for the replies. @CDRIVE, I understand that 'clever' is not the right word, 'unconventional' would have been a better fit. I am using a PIC as a matter of fact (love them), but this one does not have a DAC. There is a second reason for the external DAC. The LDO ADJ pin can't be...
  6. pgib8

    clever vibration motor driver?

    I thought about that too but I was thinking that the PWM coupled with the DC motor would create a lot of noise.
  7. pgib8

    clever vibration motor driver?

    Hi, I'm doing a little circuit to drive a small vibration motor. I want to be able to control the voltage that feeds the motor and of course to be able to turn it on and off. I'm using a microcontroller and digital-to-analog converter. My first idea was to use an OP amp after the DAC as voltage...
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