Teardown: 275A/48V Sevcon motor controller Gen4 4827

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janosch
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Teardown: 275A/48V Sevcon motor controller Gen4 4827

Post by janosch »

Hello,

Not sure if someone has done these, so sharing this here.

I expected an H-Bridge and wanted to harvest the IGBTs, but found a MOSFET array instead.
I opened it up and found the following:
All glued together, one big heatsink at the bottom.

Form Factor: 19cm x 17cm x 7cm
Weight: 1.9kg

Haven't done any tracing or tried to boot it, these would be perfect for a Go-Kart or powerful E-Bike.

I hope this helps!


Edit: Ah, someone opened them in 2015 as well, with some images now 404d.
whole_board.jpeg
disassembly.jpeg
pmos.jpeg
micro_rotated.jpeg
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