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PWM using dsPIC33EV256GM106

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Soli8592
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2019/09/18 10:16:13 (permalink)
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PWM using dsPIC33EV256GM106

Hi there, I am an electrical engineer and attempting to control an alternator using the dsPIC33EV. The main goal is to send a AC 3 Phase PWM signal and control the speed of the motor using the microcontroller (Either triangle wave or space vectors). The biggest challenge is that I have no header or source files for any PWM code and none of the peripherals are working. I am using MPLAB and my project is due soon.
post edited by Soli8592 - 2019/09/20 15:12:13
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    du00000001
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    Re: PWM using dsPIC33EV256GM106 2019/09/20 14:50:52 (permalink)
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    Oh, there's a complete bundle for AN1078 targeting this very derivative!
    And AN1292 might apply as well.
    Most supporting material islinked on the product page, although further links might be contained within the documents linked there.
     
    But WTF is a "triangle wave" in the context of motor control?
     
    You question looks more like one of a "wannabe engineer"...

    PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)
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    Soli8592
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    Re: PWM using dsPIC33EV256GM106 2019/09/20 15:19:52 (permalink)
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    I’m still a student and only in it for the money. As far as triangle waves go, I need to produce an AC signal on the output which we will feeding into our alternator. It can be done by comparing a sine wave to a triangle wave, which produces a sine pwm that would work. Our dsPIC33 is not capable of this, therefore we’re using space vectors. Thanks for the help.
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    du00000001
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    Re: PWM using dsPIC33EV256GM106 2019/09/20 16:32:08 (permalink)
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    Usually the sine wave is made per (low-pass filtered) PWM. And the dsPIC is very well capable to do this.
    But you're free to try a differnt approach  :)

    PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)
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