A STB with low-power consumption standby

Abstract

The invention is suitable for the field of set-top boxes and provides a set-top box with low standby power consumption. The set-top box comprises a main power supply connected with a standby control panel, wherein, the standby control panel is connected with an electricity grid and comprises a micro-controller which is used for outputting an electric level controlling disconnection to an electronic switch when receiving a standby signal and outputting the electric level controlling connection to the electronic switch when receiving a signal of canceling the standby, the electronic switch which is used for switching on or switching off the connection of the electricity grid and the main power supply according to the control level of the micro-controller, and an auxiliary power supply powermodule which is used for transforming the voltage of the electricity grid into DC voltage to supply the DC power to the micro-controller and the electronic switch. When the set-top box is in standby state, the standby control panel cuts the connection between the main power supply and the electricity grid. Therefore, power consumed by the set-top box is merely from the standby control panel with low power consumption, thus achieving the aim of greatly reducing the standby power consumption of the set-top box.

Description

technical field [0001] The invention belongs to the field of set-top boxes, in particular to a low-power standby set-top box. Background technique [0002] Under the current situation of global energy crisis, high efficiency, energy saving and environmental protection are inevitable trends in the development of consumer electronics products. The electric energy consumed by the standby of the set-top box is a kind of reactive power consumption. Reducing power consumption in standby mode is a very important means of saving energy. Various existing low-power standby schemes focus on selecting low-energy, high-efficiency components, and by turning off or reducing the voltage output of each channel during standby, to achieve a reduction in standby power consumption. However, in order to meet the requirement of Energy Star that the standby power consumption of the set-top box is less than 0.5W, more sophisticated components need to be selected. This will result in high product ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a set-top box with low standby power consumption, aiming to solve the problem that under the prior art, the standby power consumption of the set-top box is difficult to meet the requirements of Energy Star, and the cost is relatively high, and the energy-saving effect is not stable.

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