Hi, so i am basically building a 7S10P pack with a discharge of 56A. I am doing a super cheap build not using a Vesc. So I’m looking for a way to limit the current to 50A.
I know the difference between brushed and dc motors and cannot see how this board works, but seems like the specs are fine but brushed motors’ speed is altered by changing voltage and current in a brushed motor is dependant on the load put on it (if you pinch the shaft of a brushed motor the amp draw will increase because short circuits). Hence, I could see you using this to alter voltage and thereby current (if resistance is constant) but not any other way. Please let me know how you were planning to use this board.
This board spits out DC at a fixed max amperage, the pwm control will decrease the voltage. This is also how the current limiter works, it decreases the voltage when the limit is reached.
Just realized it’s 10p! And only 56a. Meaning they are probably recycled cells aka shit. Don’t bother at all there have enough people wasting time on cells that won’t survive and give enough current, especially for a non vesc build…
Why do have the need to buy a current limiter if the VESC has a setting for putting a 50 amp current draw limit? I assume you understand that a device will draw the current it only needs to run based upon the total resistance of the circuit.
I am using this board http://r.ebay.com/E9inxt.
i am using a 10S7P battery rated 56Amp.
so i was looking for a way to limit the circuit to a maximum of 50amps.
but i dont want it to completely shut down when the limit is reached, like with a fuse.
the ideal thing was that it dropped the voltage enough for it to stay at 50amps.
so i found this circuit