Electric signal acquisition system and method of three-phase motor

A technology of acquisition system and three-phase motor, applied in the field of electronics, can solve the problems of complex circuit, many components used, high energy consumption, etc., to achieve the effect of simple circuit connection, reducing torque ripple, and reducing current fluctuation

Pending Publication Date: 2022-02-18
NANJING DMHC SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, this solution has the problems of using many components and complex circuits, which

Method used

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  • Electric signal acquisition system and method of three-phase motor
  • Electric signal acquisition system and method of three-phase motor
  • Electric signal acquisition system and method of three-phase motor

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Embodiment Construction

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0057] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...

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Abstract

The invention provides an electric signal acquisition system and method of a three-phase motor, and belongs to the technical field of electronics. The system comprises a three-phase upper half bridge arm, a three-phase lower half bridge arm, a micro-control unit and a first resistor; the first ends of the three-phase upper half bridge arm are connected with a first power supply, the control ends of the three-phase upper half bridge arm are respectively connected with the first control end, the second control end and the third control end of the micro-control unit, and the second ends of the three-phase upper half bridge arm and the first ends of the three-phase lower half bridge arm are respectively connected with three-phase binding posts of a three-phase motor; control ends of the three-phase lower half bridge arm are respectively connected with the fourth control end, the fifth control end and the sixth control end of the micro-control unit, and second ends of the three-phase lower half bridge arm are grounded through the first resistor; and each detection end of the micro-control unit is respectively connected with the first end of the three-phase lower half bridge arm and the three-phase binding post of the three-phase motor or the first end of the first resistor. According to the invention, the effects of reducing energy consumption, failure rate and cost can be achieved.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular, to an electrical signal acquisition system and acquisition method for a three-phase motor. Background technique [0002] With the development of electronic technology, three-phase motors have been applied to various equipment, such as electronic mopeds, electric vehicles, elevators and other equipment. Generally, the operating state of the three-phase motor can be controlled by controlling the output current of the three-phase bridge arm drive circuit in the controller of the three-phase motor. In order to ensure the safe operation of the three-phase motor, it is necessary to control the phase current of the three-phase motor Collection monitoring. [0003] In the related art, the three-phase bridge arm driving circuit of the three-phase motor generally has three upper bridge arms of U phase, V phase and W phase and three lower bridge arms of U phase, V phase and W p...

Claims

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Application Information

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IPC IPC(8): H02P23/14H02P27/08
CPCH02P23/14H02P27/08
Inventor 孙敏
Owner NANJING DMHC SCI & TECH CO LTD
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