Driving system of space-borne brushless direct-current torque motor
A torque motor and DC brushless technology, applied in the direction of DC motor speed/torque control, control system, electrical components, etc., can solve the problems of high pressure on thermal control, large conduction resistance, etc., to avoid waste and reduce power consumption consumption, stable and reliable work effect
Inactive Publication Date: 2015-04-08
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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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.
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specific Embodiment approach 1
[0014] Specific implementation mode one, combination figure 1 with figure 2 In this embodiment, the drive 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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A driving system of a space-borne brushless direct-current torque motor relates to a driving system of a space-borne brushless direct-current torque motor. The problem that the existing brushless direct-current torque motor driver has large on-resistance and causes large pressure on thermal control is solved. The invention provides a driving system of a space-borne brushless direct-current torque motor. The on resistance of a driving bridge is limited according to the direct-current resistance of an internal coil of the torque motor. The power supply voltage and peak power consumption of a power supply are limited and the peak current of the driving bridge is limited according to the peak locked-rotor torque of the torque motor and the maximum torque required by a load. The peak current and withstand voltage of a free-wheeling diode of the driving bridge are limited according to the principle of continuity of the coil current. The resistance and capacitance parameters of the driving system of the torque motor are regulated. The power consumption and heat generation of the whole driving system can be reduced, and stable and reliable operation of each driving system is ensured.
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 brush motor will generate 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 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 motor int...
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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