Todd Zuercher wrote: > Has anyone here used some of these brushless sine drives (like an AMC > SX25A20) that take two analog sine waves from the control (the 3rd is > calculated from the other two)? > > I got a couple of the equivalent Copley drive for a future retrofit. Note these are torque-mode only drives, where the analog command input determines winding current on two terminals. (Of course, the 3rd terminal needs to equal the sum of the other two.) > > > What hardware did you use? It seems like most hardware is aimed > towards a single signal per drive. I will need to use 4 drives and > there for need 8 analog signals, 4 differential encoders, 4 halls (also > differential like the encoders), > I believe a couple people have gotten this working with Mesa hardware and the BLDC component. I plan on using my own PPMC hardware, but the analog outputs are not anything special, it is the HAL connections that determine what they do.
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