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Motor counter electromotive force protection method, system, device and storage medium

A technology of back electromotive force and motor drive circuit, applied in the direction of emergency protection circuit device, control system, motor control, etc., can solve the problems of low practical value, low motor safety performance, abnormal start-up of the motor, etc., to solve abnormal start-up, The effect of easy operation and low maintenance cost

Active Publication Date: 2021-09-17
UBTECH ROBOTICS CORP LTD
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Problems solved by technology

[0005] The invention provides a motor back electromotive force protection method, protection system, protection device and storage medium, aiming to solve the problem that in the traditional technology, the motor will generate back electromotive force when power is off and shut down, and the motor will start abnormally, which will lead to low safety performance of the motor , the problem of low practical value

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  • Motor counter electromotive force protection method, system, device and storage medium
  • Motor counter electromotive force protection method, system, device and storage medium
  • Motor counter electromotive force protection method, system, device and storage medium

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] It should be noted that, as a motor as an electric energy drive device, usually, only when the motor drive circuit is connected to an external power source can it maintain a stable running state, so as to realize the control of the running state of the motor; for example, figure 1 A schematic structural diagram of the motor drive circuit 10 provided by the embodiment of the present invention is shown, as figure 1 As shown, the motor drive circuit 10 includes: a DC power supply 101, a control unit 102, and an H-bridge circuit 103, wherein the DC power supply 101 can output DC power, and the m...

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Abstract

A motor back electromotive force protection method, a protection system, a protection device, and a storage medium; the motor back electromotive force protection method is applied to a motor drive circuit, and the motor back electromotive force protection method includes: collecting a switch trigger signal of a control unit; according to the current The switch trigger signal judges whether the motor is in an abnormal power-on state; if the motor is in an abnormal power-on state, then control the two control branches of the lower bridge arm in the H bridge circuit to conduct, and the motor and the two control branches of the lower bridge arm The control branch forms a discharge circuit through which the back electromotive force energy of the motor is consumed to prevent the motor from being powered on abnormally; the invention solves the problem of the abnormal power-on start of the motor due to the back electromotive force when the motor is powered off and shut down in the traditional technology , The problem of low motor safety performance.

Description

technical field [0001] The invention belongs to the technical field of motor protection, and in particular relates to a motor back electromotive force protection method, a motor back electromotive force protection system, a motor back electromotive force protection device and a computer-readable storage medium. Background technique [0002] Motors are commonly used electronic components in industrial products. During the control process of the motor, the operating state of the motor can be changed by adjusting the input power of the motor. The motor can drive multiple electronic components to achieve complete circuit functions. The control method of the motor It is extremely simple and can improve the practical value of electronic components; therefore, relevant technical personnel can make the motor run or stop by controlling the input power, so as to realize good control performance of the motor. [0003] However, in the traditional technology, due to the existence of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/085H02P29/024H02P1/02
CPCH02H7/0855H02P1/022H02P29/0241
Inventor 熊友军王忠良孙汉宇周升
Owner UBTECH ROBOTICS CORP LTD
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