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. In most Motor Control systems, several sensors are used to provide Feedback information on the Motor .
* Resistivity (ρ) Example: What is the resistance of the PCB shunt resistor Given: 1 oz Cu PCB w = 50 mils (0.050 in) = 1 in / 0.050 in L = 1 inch L / w = number of squares ( ) ... they are less intrusive than low-side measurements. The trade-off with the high-side measurement is that
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