The present invention discloses a low-power standby control method for a washing
machine, which comprises the following steps: a 220VAC mains power is passed through a filter and connected to a main
transformer-integrated computer board of the washing
machine; the main
transformer-integrated computer board of the washing
machine is transformed by a
switching power supply for use by various circuit modules; in standby mode, the power supply of a
control circuit of each circuit module is
cut off, and the main
transformer-integrated computer board MCU enters a
sleep mode; in a normal working mode, the main transformer-integrated computer board of the washing machine communicates with a
display board through a
serial port; in a standby state, all indicator lights on the
display board are off, and no communication
signal is sent to the main transformer-integrated computer board of the washing machine; within 10 minutes, the main transformer-integrated computer board of the washing machine cannot receive a communication
signal and enters the
sleep mode; when the washing machine needs to be started, the
display board sends a
signal to the main transformer-integrated computer board of the washing machine, and the
serial port of the main transformer-integrated computer board of the washing machine cannot be executed. At this time, the sleep awakening port of the main transformer-integrated computer board of the washing machine is activated to awaken the main transformer-integrated computer board of the washing machine, so that the washing machine can operate normally.