Startup circuit and electronic equipment

Abstract

The embodiment of the invention provides a startup circuit and electronic equipment, and relates to the field of circuits. The startup circuit is used for realizing startup of the electronic equipment through remote control equipment when a remote control circuit is in a non-working state. The circuit comprises a power supply unit, a main circuit control unit, a startup control unit and a first capacitor, wherein the input end of the startup control unit is connected with the output end of the power supply unit; the charging end of the startup control unit is connected with the first capacitor; the output end of the startup control unit is connected with the main circuit control unit; the startup control unit is used for receiving a light signal of a startup signal transmitted by the remote control equipment and converting the light signal into an electric signal for charging the first capacitor in order to start the startup control unit by the first capacitor; the startup control unit is used for triggering the startup of the main circuit control unit during startup.

Description

technical field [0001] The present invention relates to the field of circuits, in particular to a power-on circuit and electronic equipment. Background technique [0002] With the continuous development of electronic technology, more and more electronic devices (such as TVs, air conditioners, etc.) have remote control functions, that is, users can control electronic devices through the remote control according to their needs. The electronic device can be turned on by sending a power-on signal from the device, which brings great convenience to the user. [0003] In the existing electronic equipment, it includes a remote control receiving circuit and a main control chip. When the electronic equipment is in a standby state, power is supplied to the remote control receiving circuit and the main control chip through a capacitor of a certain capacity, so that the remote control receiving circuit and the main control chip are in In this way, when the remote control sends a power-o...

AI Technical Summary

Problems solved by technology

[0004] However, during the start-up process of the above-mentioned electronic equipment, due to the limited capacity of the capacitor, when the capacity of the capacitor is less than the normal operating voltage of the remote control receiving circuit and the main control chip, the remote control receiving circuit and the main control chip are in a non-working state. The receiving circuit cannot receive the power-on signal sent by the remote control, so that the electronic device cannot be turned on by the remote control

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