Transcription of Motor Control Sensor Feedback Circuits
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Motor Control Sensor Feedback Circuits
M AN894. Motor Control Sensor Feedback Circuits A list of the sensors that can be used to Feedback Author: Jim Lepkowski information to a microcontroller are listed below: Microchip Technology Inc. Current sensors - Shunt resistor INTRODUCTION. - Current- sensing transformer Sensors are a critical component in a Motor Control - Hall effect current Sensor system. They are used to sense the current, position, Speed/position sensors speed and direction of the rotating Motor . Recent - Quadrature encoder advancements in Sensor technology have improved the accuracy and reliability of sensors, while reducing - Hall efect tachometer the cost. Many sensors are now available that integrate Back EMF/Sensorless Control method the Sensor and signal-conditioning circuitry into a single package.
significant impact on the system if the sensing resistor is small and the resulting voltage drop across the shunt is small compared to the supply voltage. In contrast, low-side monitoring disrupts the ground path of the load, which can cause noise and EMI problems in the system. Low-side current measurements are often chosen
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