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Direct-current motor closed-loop power supply system

A technology of DC motor and power supply system, applied in the direction of converting AC power input into DC power output, irreversible AC power input into DC power output, electrical components, etc. question

Active Publication Date: 2020-08-18
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Direct-current 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 direct-current motor closed-loop power supply system. By arranging a protection circuit module, the effective DC voltages corresponding to different motor controllers can be provided, and the tracking protection can be performed on the voltages. When overvoltage and overcurrent occur in the research and development process, the current and the voltage can be reduced for continuous operation, or the power failure double protection can be carried out, the rotating speed of the motor can be fed back and tracked, and a used hardware circuit is quick in protection responseand high in precision, is capable of preventing mistaken protection, so that a direct and reliable power supply system is provided for the research and development of different types of direct-currentmotor controllers.

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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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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