Control device and control method of dual-motor system and dual-motor system

Abstract

The invention discloses a control device of a dual-motor system, a control method of the control device and the dual-motor system, and the device is characterized in that a PWM output port of a control chip is respectively connected to a driving end of a first motor and a driving end of a second motor after passing through a driving unit and a driving switching unit; one switching signal output port of the control chip is connected to the driving switching unit; a feedback end of the first motor and a feedback end of the second motor are respectively connected to a rotating speed signal feedback end of the control chip after passing through the sampling switching unit and the sampling unit; and one switching signal output port of the control chip is also connected to the sampling switching unit. According to the scheme, one driving circuit and one sampling circuit are adopted to control the two motors, so that the cost of a hardware circuit can be reduced.

Description

Technical field [0001] The present invention belongs to the field of motor technology, and more particularly to a control device of a dual motor system and a control method thereof, in particular, to a driving and sampling circuit of a dual motor system, and has the drive and sampling circuit of the dual motor system. Dual motor system, and drive and sampling circuit of the dual motor system. Background technique [0002] Many times in the industry need to use multiple motors to work at the same time, such as the internal and external fan of commercial air conditioners, ventilation fan in the factory, the same speed transmission mechanism, etc., each motor is equipped with a driving circuit in this scenario to greatly increase the hardware circuit. the cost of. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent the above content is prior art. Inventive content [0004] It is an object of the ...

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Problems solved by technology

[0004] The object of the present invention is to provide a control device for a dual-motor system, its control method and the dual-motor system, so as to solve the problem of requiring two motors to work at the same time. Each motor is equipped with a separate drive circuit, which will increase the number of hardware circuits. The cost of the problem, to achieve the effect of reducing the cost of the hardware circuit by using a drive circuit and a sampling circuit to control two motors

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