Motor start control circuit, motor assembly and load driving device

A start-up control and motor start-up technology, which is applied in the electronic field, can solve problems such as large vibration and noise, high power start-up frequency, and out-of-step, and achieve the effect of solving the problem of indefinite rotation direction

Inactive Publication Date: 2018-03-09
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiment of the present application provides a start-up control circuit for a single-phase synchronous motor to solve the problems of the single-phase synchronous motor's indeterminate rotation direction, large vibration and noise, and out-of-step caused by high power start-up frequency during start-up.

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  • Motor start control circuit, motor assembly and load driving device
  • Motor start control circuit, motor assembly and load driving device
  • Motor start control circuit, motor assembly and load driving device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0038] FIG. 1 is a schematic structural diagram of a single-phase synchronous motor with load system provided by an ...

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Abstract

The invention discloses a motor start control circuit, a motor assembly and a load driving device. The motor start control circuit is used for controlling start of a synchronous motor and comprises alogic control circuit and a bidirectional electronic switch, wherein the logic control circuit is used for enabling AC power positive half wave train or negative half wave train control signals with aspecified wave number law to electrify a single-phase synchronous motor through triggering the bidirectional electronic switch when the motor starts, and when the wave front number of the positive / negative wave front train is reduced to a predetermined value, the bidirectional electronic switch is electrified. The problems of indeterminate rotation directions, start vibration and start failure inthe case of start of the single-phase synchronous motor can be solved.

Description

technical field [0001] The present application relates to the field of electronic technology, and particularly relates to a starting control circuit for a motor, a motor assembly and a load driving device using the starting control circuit for a motor. Background technique [0002] Single-phase synchronous motors have the advantages of small size, light weight, high efficiency, low energy consumption, simple structure, reliable operation, and convenient maintenance. Used in household appliances, electric tools, medical equipment and light industrial equipment. [0003] When the stator winding of a single-phase synchronous motor is connected to an AC power supply, it will generate a pulsating magnetic field consistent with the frequency of the voltage. According to the theory of double rotating magnetic fields, the pulsating magnetic field can be decomposed into two rotating magnetic fields with the same speed and opposite directions, one positive and one reverse. , the ampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/46
CPCH02P1/465H02P2207/05
Inventor 李越刘立生张亚明王勇
Owner JOHNSON ELECTRIC SHENZHEN
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