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A DC motor closed-loop power supply system

A DC motor and power system technology, applied in the direction of converting AC power input to DC power output, irreversible AC power input converting to DC power output, electrical components, etc., can solve damage to the motor or controller, false protection, speed error and other problems, to achieve the effects of high precision, precision anti-mistake protection, and fast protection response.

Active Publication Date: 2021-06-01
GREE ELECTRIC APPLIANCES INC
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AI Technical Summary

Problems solved by technology

[0002] With the development of modern power electronics technology and micro-control technology, brushless DC motors have gradually replaced DC motors in many application fields. It is a combination of power electronic conversion technology, micro-control technology, motor control technology and intelligent control technology Because the brushless DC motor adopts high magnetic energy rare earth permanent magnet materials, it also has the characteristics of small size, light weight, high efficiency, and low loss. It has been widely used in aviation, aerospace, machinery, automobiles and other industrial fields and household Electrical appliances and other civilian fields; when developing DC motor controllers with different voltage levels, there are the following problems: first, different motor controllers need to provide different power supplies; second, overvoltage and overcurrent occur during motor operation , but pull it down, it can continue to run, but the problem of false protection; the third is the overvoltage and overcurrent of the motor operation, but pull it down, it can not continue to run, and damage the motor or controller; Fourth, the power supply circuit cannot provide feedback on the motor speed, so that there is a speed error problem in debugging

Method used

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  • A DC motor closed-loop power supply system
  • A DC motor closed-loop power supply system
  • A DC motor closed-loop power supply system

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Embodiment Construction

[0044] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] Such as figure 1 As shown, the embodiment of the present invention provides a DC motor closed-loop power supply system, including: a rectifier circuit module 10, connected to the AC current, and rectifies the input AC current; Buck-Boost circuit module 20, connected with the rectifier circuit Module 10 is connected; DC output circuit module 30, and described Buck-Boost circuit module 20; Main controller circuit module 40, is...

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Abstract

The invention provides a DC motor closed-loop power supply system. By setting a protection circuit module, it can not only provide effective DC voltages corresponding to different motor controllers and track and protect their voltages, but also prevent overvoltage and damage during the research and development process. When over-current is pulled down to continue running or power failure dual protection, it can also feedback and track the motor speed, and the hardware circuit protection used has fast response, high precision and anti-mistake protection; thus it is developed for different types of DC motor controllers Provide direct and reliable power supply system.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a DC motor closed-loop power supply system. Background technique [0002] With the development of modern power electronics technology and micro-control technology, brushless DC motors have gradually replaced DC motors in many application fields. It is a combination of power electronic conversion technology, micro-control technology, motor control technology and intelligent control technology Because the brushless DC motor adopts high magnetic energy rare earth permanent magnet materials, it also has the characteristics of small size, light weight, high efficiency, and low loss. It has been widely used in aviation, aerospace, machinery, automobiles and other industrial fields and household Electrical appliances and other civilian fields; when developing DC motor controllers with different voltage levels, there are the following problems: first, different motor controllers need to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/12
CPCH02M7/125
Inventor 全威郭春林吴文贤肖胜宇
Owner GREE ELECTRIC APPLIANCES INC
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