Two-phase ac motor driver

Posted on Dec 13, 2012

Because of its high amplification factor and built-in power-output stage, an integrated power operational amplifier makes a convenient driver for ac motors. One op amp can be configured as an oscillator to generate the required ac signal. The power-output stage, of course, supplies the high-current drive to the motor.

Two-phase ac motor driver
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The controlling op amp.

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