Power switch circuit for stereoscopic watching device and related device

Abstract

The invention discloses a power switch circuit for a stereoscopic watching device. The circuit comprises a power supply, a microprocessor unit, an electronic switch (Q1), an automatic resetting mechanical switch, a triode (Q2) and a resistor, wherein the anode of the power supply is respectively connected with an emitting electrode of the electronic switch (Q1) and a first fixed contact end of the automatic resetting mechanical switch; the cathode of the power supply is respectively connected with the resistor, an emitting electrode of the triode (Q2) and a ground pin of the microprocessor unit; the other end of the resistor is connected with a second fixed contact end of the automatic resetting mechanical switch; a base electrode and the emitting electrode of the electronic switch (Q1) are respectively connected with a slide end and the first fixed contact end of the automatic resetting mechanical switch; a collector electrode of the electronic switch (Q1) is connected with a power pin of the microprocessor unit; a collector electrode of the triode (Q2) is connected with the slide end of the automatic resetting mechanical switch; and a base electrode of the triode (Q2) is connected with a control end of the microprocessor unit; and thus, the problem that the mechanical switch is damaged easily can be solved.

Description

technical field [0001] The invention belongs to the technical field of circuits, and in particular relates to a power switch circuit of a stereoscopic viewing device and related devices. Background technique [0002] Recently, stereoscopic devices, especially 3D TVs, are becoming more and more popular products. Supporting devices (stereoscopic viewing devices, especially 3D glasses) as stereo equipment are also becoming more and more important. There are two ways to realize 3D glasses: one is polarized light way, and the other is liquid crystal light valve way. The working principle of the liquid crystal light valve method is: the receiving head on the 3D glasses receives the synchronous signal from the infrared tube of the TV, and then alternately switches the liquid crystal light valves of the left and right glasses, so that the eyes alternately look at the image signals of the left and right eyes displayed on the LCD screen, and then A three-dimensional image is synthes...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a power switch circuit of a stereo viewing device and related devices, aiming to solve the problem that the 3D glasses in the prior art use a mechanical switch connected in series with the power supply to control the opening and closing of the power supply, which causes the mechanical switch to be easily damaged and the switch operation is not easy Convenience question

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