RC ESC Current Limit

Joined
May 28, 2008
Messages
718
I think that I need a current limiting circuit to protect my battery. My RC controller can handle 80 amps, but my battery has a 40A peak and a BMS cutoff of 65A. I have seen the the circuit uses an op amp and moves the throttle toward zero when an over current occurs (I think). It may be the circuit I use, but I have been looking at other ways of doing the current limiting.

Would this work if you scale it up to handle the voltage and current? I don't know how to scale it up, but I am looking for validation that this could work from one of the more electronic knowledgeable members. Maybe use this http://www.st.com/stonline/products/literature/ds/3393/esm2012dv.pdf darlington pair. I found the diagram here http://www.electro-tech-online.com/...stabilised-power-supply-current-limiting.html.

Bubba

Discreet_PSU_V12.jpg
 
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