Single-key electronic switching circuit

Abstract

The invention relates to a single-key electronic switching circuit, which is provided with an output switching unit, a voltage dividing unit, a driving switch and an output voltage control unit. In the practical application process, the output switching unit is used for outputting voltage and outputting the output voltage of a power supply Vcc into an external load so as to supply power to the load; the voltage dividing unit plays a role of voltage dividing, and the output voltage of the voltage dividing unit is inputted into the output voltage control unit when a user presses the driving switch; and the output voltage control unit controls the output switching unit to be on or off by using the output voltage of the voltage dividing unit. The single-key electronic switching circuit is noteasy to have mechanical wear, long in service life and low in incidence of touch errors, and turns on or off by using an electric signal, thereby enabling an electronic product to stably enter a standby state.

Description

technical field [0001] The invention relates to the technical field of standby, in particular to a single-button electronic switch circuit. Background technique [0002] At present, electronic products are related products based on electric energy, mainly including: watches, smart phones, telephones, televisions, DVD players, video recorders, camcorders, radios, tape recorders, combination speakers, CD players, computers, mobile communications products etc. Because the early products were mainly based on electronic tubes, they were named electronic products. The first generation of electronic products centered on the electron tube. At the end of the 1940s, the first semiconductor triode was born in the world. With the characteristics of small size, light weight, power saving, and long life, it was quickly used by various countries and replaced electronic tubes in a large range. In the late 1950s, the first integrated circuit appeared in the world, which integrated many tr...

AI Technical Summary

Problems solved by technology

The existing standby function, usually after the user presses the standby button, the computer starts the standby function, but most of the existing standby buttons are mechanical switches, which use mechanical force to make the standby circuit turn on or off, but due to Due to the special physical characteristics of the mechanical switch, when the mechanical switch is pressed by the user, the mechanical switch may not be in place, that is, there is an error in the touch, which will cause the standby circuit to fail to start normally, and the computer will not be able to enter the standby function normally; , the existing mechanical switch, after being used for a period of time, the mechanical switch will be worn to a certain extent, resulting in the failure of the normal use of the mechanical switch, that is, the service life of the mechanical switch is short; moreover, the mechanical switch uses a physical touch The function is realized by means of physical touch, when the standby circuit is turned on or off, there will be a certain time difference, resulting in the computer not entering the standby state within the normal time range.

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