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What advantages does CPLD have w.r.t microcontrollers in driving MOSFET drivers in inverter?

Electrical Engineering Asked by Rookie91 on November 23, 2021

I have seen some designs where CPLDs have been used in driving the MOSFET driver in an inverter circuit. What advantage does is provide with regards to driving the same using controllers like TI piccolo c2000 series?

Note: I’ve never used CPLDs and consider my self as a newbie in that area. Would like to hear some conceptual understanding or suggestions for reading on the same.

Thanks a lot for your time.

One Answer

Determinism. Exact same timings, every time, all the time. More immediate, potentially simultaneous, reactions to events with much, much less time variability. Always the same number of clock cycles if you are using a clock.

It's also easier to replace a CPLD than an MCU if it goes obsolete, especially between brands since the "code" is far more universal and pin assignments are far more flexible. Good for products where you plan on manufacturing them for decades.

Answered by DKNguyen on November 23, 2021

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