So we have a and need to put it to work. But not doing what you'd think.
See, we're building a electric conversion, based on a Miata. I call it a MiEta, but opinions vary. The first motor is DC, since any suitable AC one was major money; but hopefully we'll revisit that later.
As part of the testbed work on the Arduino-based motor controller, we need a dynamometer to load it down. And that's where the PennTex comes into play.
We don't have the original regulator; it was not reachable in the boneyard. Further, we're likely to want have software control of the load.
I can't find anything documented, but assume the field will draw say 5 amps at 28V. We can use a brute force lineally-regulated DC supply, but can we instead use PWM of the field? At what kind of PRR and widths?
Second question: what to load it with. Instead of futzing around with heater loads in water baths etc; I started to wonder -- suppose I just short all three phases together? If we limit current to rated values; what's the downside? We'd have to watch thermal dissipation but it has a big fan already.