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Drive system of space-borne DC brushless torque motor

A torque motor, DC brushless technology, applied in the direction of DC motor speed/torque control, control system, electrical components, etc. The effect of wasteful, stable and reliable work

Inactive Publication Date: 2017-01-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a drive system for star-loaded DC brushless torque motors in order to solve the problems of large on-resistance of the driver of the existing DC brushless torque motor, which leads to high pressure on thermal control, etc.

Method used

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  • Drive system of space-borne DC brushless torque motor
  • Drive system of space-borne DC brushless torque motor
  • Drive system of space-borne DC brushless torque motor

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specific Embodiment approach 1

[0014] Specific implementation mode one, combination figure 1 with figure 2 In this embodiment, the driving system of the space-borne DC brushless torque motor includes a controller, a combinational logic protection circuit, an integrated driver and an H-bridge drive circuit; the controller outputs a logic signal, which is processed by the combinational logic protection circuit to form a drive The logic signal is sent to the integrated driver for power amplification to form a drive signal, which drives the H-bridge drive circuit to control the direction and speed of the torque motor;

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Abstract

The drive system of the space-borne DC brushless torque motor relates to a drive system of the DC brushless torque motor, which solves the problems of the current brushless DC torque motor driver, which has a large on-resistance, which leads to high pressure on thermal control. The invention proposes a drive system for an on-board DC brushless torque motor. According to the DC resistance of the internal coil of the torque motor, the on-resistance of the drive bridge is limited; according to the peak torque of the torque motor and the maximum torque required by the load, the supply voltage and peak power consumption of the power supply are limited and the drive bridge The peak current is limited; according to the continuity principle of the coil current, the peak current and withstand voltage of the freewheeling diode of the drive bridge are limited; at the same time, the resistance and capacitance parameters in the torque motor drive system are specified. The invention can reduce the power consumption and the generated heat of the whole drive system, and at the same time ensure the stable and reliable operation of each drive system.

Description

Technical field [0001] The invention is a drive system of a DC brushless torque motor, and specifically relates to a drive system of a DC brushless torque motor that meets high reliability requirements for aerospace applications. Background technique [0002] Motors have applications in various fields. Torque motors are special motors with soft mechanical characteristics and wide adjustment ranges. The shaft of this motor does not output power with constant power but with constant torque. In aerospace applications, because the brushed motor generates electric sparks in the application, the DC brushless torque motor is used. Because the torque motor has the characteristics of instantaneous high power, the coil DC resistance is small and the current flowing through it is large. If the on-resistance of the motor driver is large, not only will the power consumption be further increased, but also the thermal control will be caused by the large heat generation. huge stress. Today's ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P7/00
Inventor 余达李广泽刘金国王国良周磊梅贵吕世良
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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