[0.3.1] D1 is the hottest part of MRE - just add vias for [0.3.1]?

rusefi / hw_microRusEfi

microRusEfi board for rusEfi ECU

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Closed rusefi closed 4 years ago

rusefi commented 5 years ago

Without the rear panel D1 is 70C

With rear panel it's still 50C

@jharvey says P-mosfet? faster diode? thermal via?

DonaldBecker commented 5 years ago

It's in continuous conduction mode, so a faster diode won't help.

Any heat eliminated by using a protection MOSFET will just be moved to the V6V MOSFET. (Which should already be burning 10x the power of the diode.)

The answer seems to be adding thermal vias and conducting heat to the case, or using a buck/buck-boost supply.

rusefi commented 4 years ago

A lot of progress was made on 0.4.x