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PWM and sinusoidal waves

Valentina Migliorato

Hi, I have a problem about PWM modulation... using STM32 evaluation board (STM32F103ZE).
I have to compare 3 sinusoidal signals (50 hz frequency, with 3 different phases) to a triangular carrier, and I have to send the output to the GPIO.

If someone could post some examples I would be very thankfull.

Parents
  • 0

    I have a problem about PWM modulation

    I'm afraid it's worse than that. You seem to have a problem with knowing what the actual problem you have even is. For starters, this:

    I have to compare 3 sinusoidal signals (50 hz frequency, with 3 different phases) to a triangular carrier, and I have to send the output to the GPIO.

    has no apparent relation to PWM modulation whatsoever. It's completely unclear what you mean when you say you have to "compare" those signals, and equally unclear what that "output" is you want to send out to a GPIO pin.

Reply
  • 0

    I have a problem about PWM modulation

    I'm afraid it's worse than that. You seem to have a problem with knowing what the actual problem you have even is. For starters, this:

    I have to compare 3 sinusoidal signals (50 hz frequency, with 3 different phases) to a triangular carrier, and I have to send the output to the GPIO.

    has no apparent relation to PWM modulation whatsoever. It's completely unclear what you mean when you say you have to "compare" those signals, and equally unclear what that "output" is you want to send out to a GPIO pin.

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