Motor drive circuit and washing machine provided with the same

Abstract

This invention discloses a washing machine, including following parts: a roller for accepting washings; a motor connected with the roller and for providing driving force; a main controller for controlling the driving of the motor; a display device that controls through the main control and is used for displaying operations of the motor; a display device controller for controlling operations of the display device, wherein the ground of the main controller is mutually separated from the ground of the display device controller. The washing machine of this invention separates the ground of the main controller and the ground of the display device controller so as to prevent the display device controller from damaging under the condition that the insulated layer is damaged caused by moisture vapor transmission.

Description

technical field [0001] The present invention relates to a motor drive circuit and a washing machine provided with the motor drive circuit, more specifically, a motor drive circuit capable of preventing damage to the display device controller used to control the operation of the display device and a motor drive circuit provided with the motor drive circuit washing machine. Background technique [0002] Generally speaking, the washing machine is a device that uses the softening effect of detergent, the friction between detergent and water, and the impact applied to the washing to remove various pollutants stuck on the washing. [0003] According to the direction in which the laundry is taken out, the above-mentioned washing machine can be classified into a front loading type and a top loading type. In addition, the above-mentioned washing machines may be classified into a vertical axis type in which an agitator or a built-in washing tub rotates, and a horizontal type in which...

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Problems solved by technology

[0012] And, since the above-mentioned display device controller 40 and the above-mentioned main controller 30 are commonly grounded, when there is moisture between the wires and the like for grounding the above-mentioned display device controller 40, there is no In the case of a high-voltage part, problems such as damage to the insulating layer will occur, resulting in damage to the display device controller 40

[0013] Moreover, the above-mentioned display device controller 40 will send and receive signals with the above-mentioned main controller 30 through the signal line 35. When the distance between the signals is relatively long, noise may be generated during signal transmission.

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