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By electronic circuitry BLDC can be controlled for both constant and variable torque operation.

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By electronic circuitry BLDC can be controlled for both constant and variable torque operation.

(a) True

(b) False

The question was asked in unit test.

My question comes from BLDC Motors in division Synchronous Machines of DC Machines

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The correct answer is (a) True

Best explanation: In BLDC because of rotor position feedback triggering of thyristors/transistors, the stator and rotor field always remain in synchronism as the frequency of triggering automatically adjusts to motor speed. The length of on-time of the transistors determines motor torque magnitude.

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