Controlled and monitored width-adjusting servo system of brushless torque motor

Abstract

The invention provides a controlled and monitored width-adjusting servo system of a brushless torque motor, which is used for controlling positions of an accelerometer and a rotary table and comprises a signal processing circuit, a comparator and optocoupler isolated circuit, a triangular wave circuit, a motor drive circuit, a Hall switch, a bus control interface circuit, an I2C (Inter-IC) monitoring interface circuit, a microsyn and a brushless torque motor. An alternating-current signal output by the microsyn is proportional to an angle; and a drive motor outputs a corresponding torque by the signal processing circuit, the triangular wave circuit, the comparator and optocoupler isolated circuit and the motor drive circuit, thus avoiding loading torques and friction torques. The servo system is provided with the bus interface circuit and the I2C monitoring interface circuit, thus computer buses can be utilized to control and monitor the connection / disconnection of the system, thus realizing a bus controlling and monitoring function and remotely controlling and monitoring the system. A special motor driver is utilized in the system, thus the system has the advantages of simple design, reliability in operation and small volume. A three-phase brushless torque motor is adopted in the system, and the Hall switch is embedded into a motor body, so the volume is small and the operation is reliable.

Description

technical field [0001] The invention relates to a circuit, a controllable and monitorable brushless torque motor width adjustment servo system, which is used for the control system of a small-power three-phase brushless torque motor, and can realize bus control and I 2 C bus monitoring. Background technique [0002] The three-phase brushless torque motor has high reliability and is widely used in control fields such as instrument testing and turntable testing. With the development of modern electronic technology, the system adopts different control strategies to pursue the advantages of low power consumption, miniaturization, and high reliability, but it will encounter different difficulties in the specific implementation of the scheme. [0003] "Small Internal Combustion Engines and Motorcycles", Volume 37, Issue 5 "Electromagnetic Interference Mechanism and Experimental Research of Hall Sensors Used in Engines" introduced that the Hall switch will be disturbed and malfunc...

AI Technical Summary

Problems solved by technology

[0005] The traditional servo system does not have the ability to interface with the bus, the test process relies too much on testers, and the degree of automation is low

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