Re:Chipmaker Analog Devices to acquire Maxim Integrated for ...
by phkahler on Monday July 13, 2020 @01:09PM
(#23823032)
The power-switch that controls "on" vs "off" needs to be incredibly efficient when you're shoving 200+ kW of energy through it!!
Yeah, when I was working in EVs everything was about reducing losses. Not just for efficiency but because a few percent loss is a LOT of heat.
I ran an inverter at 200kW that was not rated for that. The weak point was actually the DC connector. I didn't find that out the hard way, just looked it up as I was closing in on 600 Amps DC.
BTW I just needed to find 2 values empirically and was unable to because of that DC current. Strange enough I figured running at a lower voltage would reduce max power and I could get my values. Unfortunately half the voltage is half the power but still the same current. Higher speed had similar issues. Project got cancelled before I found that motors limits.
Yeah, when I was working in EVs everything was about reducing losses. Not just for efficiency but because a few percent loss is a LOT of heat.
I ran an inverter at 200kW that was not rated for that. The weak point was actually the DC connector. I didn't find that out the hard way, just looked it up as I was closing in on 600 Amps DC.
BTW I just needed to find 2 values empirically and was unable to because of that DC current. Strange enough I figured running at a lower voltage would reduce max power and I could get my values. Unfortunately half the voltage is half the power but still the same current. Higher speed had similar issues. Project got cancelled before I found that motors limits.