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In the biomedical instruments like artificial heart pumps, the motor used is ____________

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In the biomedical instruments like artificial heart pumps, the motor used is ____________

(a) DC shunt motor

(b) DC series motor

(c) Induction motor

(d) BLDC motor

I have been asked this question during an interview.

My question is based upon Solid State Controlled Drives in portion Introduction to Solid State Controlled Drives of Electric Drives

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Correct choice is (d) BLDC motor

For explanation: BLDC motors are widely used in various applications of the medical industry. Sensorless BLDC motor and with sensor BLDC motors are used because of easy operation and high reliability compare to conventional motors.

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