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BrianG · 01.15.2006, 12:56 AM

Well, a BL ESC is a different animal altogether since it is a three phase system. Some of the circuitry is the same (the part that takes in the channel pulses and converts to something usable), but the rest is different.

The current capacity is limited by the number of MOSFETs you use in parallel and wiring. Some MOSFETs handle more than 100A in one package. However, you still want to use several to reduce the internal resistance and to distribute the load. The number of cells is determined by the voltage rating of the MOSFETs used. 50v is a typical value. Since the controller part of the circuit is powered by the +/- wires from the receiver, that voltage will only go to the motors.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	01.15.2006, 12:56 AM Well, a BL ESC is a different animal altogether since it is a three phase system. Some of the circuitry is the same (the part that takes in the channel pulses and converts to something usable), but the rest is different. The current capacity is limited by the number of MOSFETs you use in parallel and wiring. Some MOSFETs handle more than 100A in one package. However, you still want to use several to reduce the internal resistance and to distribute the load. The number of cells is determined by the voltage rating of the MOSFETs used. 50v is a typical value. Since the controller part of the circuit is powered by the +/- wires from the receiver, that voltage will only go to the motors.