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Q&A Motor Controller - What might be the purpose of these resistors?

I was looking at the video of the Tesla Model 3 motor controller(400VDC, 500A) disassembly and noticed a resistor network as in the picture below. They are 2k resistors(SMD code 202). See the pic...

4 answers  ·  posted 2y ago by 2kind‭  ·  last activity 2y ago by DSI‭

Question motor-controller
#1: Initial revision by user avatar 2kind‭ · 2021-08-12T20:25:55Z (over 2 years ago)
Motor Controller - What might be the purpose of these resistors?
I was looking at the video of the Tesla Model 3 motor controller(400VDC, 500A) disassembly and noticed a resistor network as in the picture below.
They are 2k resistors(SMD code 202). 

See the picture below:
![Model 3 Inverter](https://electrical.codidact.com/uploads/XuGZxUHkhUhQWZqVPw3ywPMY)

I was wondering what might be the reason for putting these resistors in a motor controller unit?

 Some of the reasons I have been thinking of:
   -  Bleeding resistors for the input bulk capacitance when the controller is disconnected from the main battery
   - Dissipative brake when the motor is acting as a generator in order to mitigate the overvoltage on the bus. 

Here is the video if you are interested [video link](https://youtu.be/l6dV2re3rtM?t=10) - I've linked the part where resistors are zoomed in.