Power supply controller

Abstract

The invention discloses a power supply controller. The power supply controller comprises a main power supply device, a main chip and a signal receiving device. The power supply controller also comprises an auxiliary power supply device, a switching device, a voltage detection device, wherein the switching device is connected with the main power supply device, the main chip and the auxiliary power supply device and is used for receiving the control signal of the main chip and switching the power source of the main chip; and the voltage detection device is connected between the main chip and the auxiliary power supply device and is used for detecting the voltage of the auxiliary power supply device. When the power supply controller receives a shutdown instruction, the main chip can transmit the signal to the switching device according to the shutdown instruction so as to make the auxiliary power supply device power the main chip, the main power supply device is in an idling or underload state at the time. In addition, the energy in the auxiliary power supply device detected by the voltage detection device can be used for deciding whether the main power supply device is selected to supply energy to the auxiliary power supply device, thereby reducing the standby power consumption of an electric apparatus and saving the electric energy.

Description

technical field [0001] The invention relates to home appliances, in particular to a power controller. Background technique [0002] With the development of the national economy and the improvement of people's living standards, more and more various electrical appliances have entered the families of ordinary people, but the standby power consumption of the power controller in the prior art is relatively large, such as figure 1 As shown, the power controller in the prior art mainly includes a main power supply device, a main chip, and a signal receiving device. The control signal and forward the control signal to the main chip. When the signal receiving device receives the shutdown command and sends it to the main chip, the electrical appliance enters the standby state, but at this time the main power supply device is still working, so that the standby power consumption is relatively large. In today's era of tight supply and demand of electric energy, the standby power consu...

AI Technical Summary

Problems solved by technology

[0002] With the development of the national economy and the improvement of people's living standards, more and more various electrical appliances have entered the families of ordinary people, but the standby power consumption of the power controller in the prior art is relatively large, such as figure 1 As shown, the power controller in the prior art mainly includes a main power supply device, a main chip, and a signal receiving device. control signal, and forward the control signal to the main chip

When the signal receiving device receives the shutdown command and transmits it to the main chip, the electrical appliance enters the standby state, but at this time the main power supply device is still working, so that the standby power consumption is relatively large

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