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Forum Index : Microcontroller and PC projects : One for the amplifier experts
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vegipete Guru  Joined: 29/01/2013 Location: CanadaPosts: 1109 |
Don't give up on the PWM driven H-bridge, just don't generate the PWM in the Picomite. Instead, feed the SPIDAC output to one side of a comparator (op-amp.) Feed a triangle wave of you chosen frequency to the other side. The output from the comparator will be your PWM signal, with 50% duty cycle when the analog input is 0 volts (assuming you've got all the offsets etc correct.) Visit Vegipete's *Mite Library for cool programs. |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 857 |
@Volhout Not the CMM2...Only the PIO can handle the encoders.  The drive on the machine feeds the encoder signal to the drive and the drive has an "emulated encoder output". The PicoMite (in my case) will handle all aspects of motion control, so the emulated encoder outputs will feed the PIO. Thanks for all the help, guys but I've been in touch with two suppliers and I'm just gonna go-ahead and get their miniature drives/motors. They have the same features as the bigger units and some of those might be useful in other applications.  |
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Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6779 |
Sometimes that's the best approach. You tend to get more meaningful results when using more similar equipment. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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