This is 24V DC motor controller at current 20Amp. By it uses IC SG3526Bcontrol in the character PWM that receive like very much and drive motor with power Mosfet number IRFP7410 x 2 pcs. Then can apply to DC Motor at use 20 Amp get comfortablely and still have Shot Circuit Protection circuit As well. You see the detail adds at picture circuit.
source : aircraftdesigner
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