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thompsonhomes1
thompsonhomes1
27.07.2019 • 
Physics

A12-pole, brushless, dc motor has a no-load speed of 5000rpm and a stall torque of 50 in-oz when operating at rated voltage of 60v. testing shows that no-load speed and stall torque vary linearly with applied voltage. also, with a constant applied voltage the speed decreases linearly as delivered torque increases. calculate the following: torque that the motor delivers at 2000 rpm when operated at rated voltage. t a) b) fundamental frequency of the applied voltage waveform at this operating condition ) stall orque and no-load speed when operated at 40v. d) motor speed when operated at 40 volts and delivering 15 in-oz of torque n- e) the voltage that should be applied to the motor to achieve a speed of 2000 rpm when delivering 5 in-oz of torque.

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