3 ms·
Are boards actually this instrumented? Does each MOSFET have a temperature sensor onboard?
by freepor 7y ago
Are boards actually this instrumented? Does each MOSFET have a temperature sensor onboard?
- rightbyte 7y agoNo they are not. Maybe one temp sensor per ECU.
- londons_explore 7y agoMOSFET on-resistance is highly dependant on temperature. They will certainly be able to measure that, even if they don't have sensors on the MOSFETs themselves. They will probably have both current and voltage measurement, so even have two ways to measure it! Even $2 China motor controllers have the hardware for it (although not the software) I'd expect them to have sensors on the individual MOSFETs though - there is per-component variation, and software changes can benefit per-component efficiency. I could totally believe a gain of +1% efficiency from such tuning, and probably more like +30% peak performance, since components can be pushed far closer to their limits when you know the exact temperatures.