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Motor system and motor drive circuit

A technology for driving circuits and motors, which is applied in the control of multiple AC motors, etc., can solve problems such as poor power conversion characteristics, and achieve good power conversion characteristics.

Active Publication Date: 2019-07-16
SHENZHEN RUOTENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a motor system and a motor drive circuit with better power conversion characteristics at any speed; to solve the problem of poor power conversion characteristics at certain speeds of existing motor systems and motor drive circuits technical issues

Method used

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  • Motor system and motor drive circuit
  • Motor system and motor drive circuit

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Embodiment Construction

[0034] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced.

[0035] Please refer to Figure 1 to Figure 3 , figure 1 It is a schematic structural diagram of a preferred embodiment of the motor system of the present invention, figure 2 It is a specific circuit structure diagram of a preferred embodiment of the motor system of the present invention, image 3 It is a specific circuit structure diagram of the first motor and the second motor of the preferred embodiment of the motor system of the present invention.

[0036] The motor system 10 of this preferred embodiment includes a first motor M1 , a second motor M2 , a speed detection sensor 13 and a motor drive circuit 14 .

[0037] Wherein the speed detection sensor 13 is used to set the rotating speed of the first electric motor M1 and the rotating speed of the second electric motor M2; The motor drive c...

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Abstract

The invention provides a motor system which comprises a first motor, a second motor, a speed detection sensor and a motor driving circuit, wherein the speed detection sensor is used for setting the rotating speed of the first motor and the rotating speed of the second motor; the motor driving circuit is used for driving the first motor and the second motor, and setting a series-parallel connection relation of the first motor and the second motor according to the rotating speed of the first motor and the rotating speed of the second motor. The invention further provides a motor driving circuit. According to the motor system and the motor driving circuit, a series-parallel connection relation of the first motor and the second motor is set according to the rotating speed of the first motor and the rotating speed of the second motor; and the first motor and the second motor are enabled to be good in power conversion characteristics at any rotating speed.

Description

technical field [0001] The invention relates to the field of motor drive, in particular to a motor system and a motor drive circuit. Background technique [0002] With the development of science and technology, people have higher and higher requirements for the quality of life. For example, users of treadmills hope to perform various forms of exercise such as fast running, slow running, and climbing on the treadmill. However, for the above-mentioned different forms of exercise, the power consumption and the rotating speed of the electric motor of the treadmill are all different. [0003] For example, for brisk running, the speed of the motor of the treadmill is faster, and the load on the motor is smaller; and the parallel connection of the motors can better increase the speed of the motor, that is, the parallel motor has better power conversion characteristics when driven at high speed . [0004] For example, for slow running or climbing, the speed of the motor of the tre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P5/74
CPCH02P5/74
Inventor 胡尊康述鹏李西平廖华勇
Owner SHENZHEN RUOTENG TECH CO LTD