Re: OT: intelligent Power Device Meeets Space Challenged BLDC Motor Drive Needs

On Mon, 14 Oct 2024 11:38:51 GMT, Jan Panteltje <alien@comet.invalid>
wrote:

Intelligent Power Device Meets Space-Challenged BLDC Motor-Drive Needs
https://www.electronicdesign.com/technologies/power/article/55234605/electronic-design-intelligent-power-device-meets-space-challenged-bldc-motor-drive-needs
 This IPD has a smaller package, more power, and smarter performance for BLDC motor drivers—what’s not to like?

It uses IGBT technology, which I hadn't seen before in an IC.

The operating voltage range is 50 to 450, which is interesting. It's
slow, so it can slam motor windings but probably not PWM for
microstepping.

I'm doing a motor driver now, using the TI DRV8962. It's four channels
of half-bridge, 4.5 to 65 volts, 10 amps per channel (!!) and it's
pretty fast. I'm using a D-sub connector so I'll rate my outputs at 2
amps.

Various D25 suppliers claim 1, 2, or even 5 amps per pin.

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I was also very impressed with SpaceX landing their booter at the launch pad

For sure. I'm impressed that it can lift enough fuel to do the powered
landing. I guess there is substantial air friction decel on the way
down.