Transcription of Motor Control Sensor Feedback Circuits
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Motor Control Sensor Feedback Circuits
2003 Microchip Technology 1 MAN894 INTRODUCTIONS ensors are a critical component in a Motor controlsystem. They are used to sense the current, position,speed and direction of the rotating Motor . Recentadvancements in Sensor technology have improvedthe accuracy and reliability of sensors, while reducingthe cost. Many sensors are now available that integratethe Sensor and signal-conditioning circuitry into a most Motor Control systems, several sensors areused to provide Feedback information on the sensors are used in the Control loop and toimprove the reliability by detecting fault conditions thatmay damage the Motor .
voltage across the shunt resistor. Note that low-side monitoring is not possible in some applications because the ground connection is made via the mechanical mounting of the motor on the chassis or metal frame. For systems powered via a single wire connection, it may not be practical to insert a shunt resistor between the device and the ...
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