Anti-dazzling rear-view mirror driving circuit with capable of adjusting transparency degree
A technology with a degree of transparency and driving circuits, which can be used in optical observation devices, transportation and packaging, vehicle components, etc., and can solve problems such as unadjustable voltage values and difficulty in obtaining the driving conditions of vehicles behind.
Inactive Publication Date: 2019-02-22
HUIZHOU DESAY SV AUTOMOTIVE
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Problems solved by technology
[0005] The present invention is to provide an anti-glare rearview mirror drive circuit with adjustable transparency, which solves the problem that the existing anti-glare rearview mirror drive circuit can only make the rearview mirror transparent and darkest. The value cannot be adjusted, which makes it difficult for the driver to obtain the driving conditions of the vehicle behind when the headlights of the vehicle behind illuminate the rearview mirror
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0023] The existing anti-glare rearview mirror drive circuit can only make the rearview mirror have two expression modes: transparent and darkest, and its voltage value cannot be adjusted, resulting in the driver’s It is difficult to obtain the driving conditions of the vehicles behind.
[0024] Such as Figure 1 to Figure 3 As shown, in order to solve the above problems, the present embodiment proposes an anti-glare rearview mirror drive circuit with adjustable transpa...
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The invention relates to the technical field of vehicle-mounted rear-view mirror driving circuits, in particular to an anti-dazzling rear-view mirror driving circuit with capable of adjusting transparency degree. A voltage stabilizing circuit (10) is arranged; the voltage stabilizing circuit (10) comprises a first resistor (R1) and a second resistor (R2) which are arranged in series; a resistor (R3) is also arranged; one end of the resistor (R3) is connected with a common connecting end of the first resistor (R1) and the second resistor (R2); and the other end of the resistor (R3) is used as avoltage input end (20). According to the anti-dazzling rear-view mirror driving circuit with capable of adjusting the transparency degree, problems that an existing anti-dazzling rear-view mirror driving circuit can only enable a rear-view mirror to have two expressing methods of transparency and darkest color and it is difficult for a driver to obtain a running situation of a following vehicle due to non-adjustable voltage value in the case that a headlamp of the following vehicle illuminates the rear-view mirror are solved.
Description
technical field [0001] The invention relates to the technical field of vehicle rearview mirror drive circuits, in particular to an anti-glare rearview mirror drive circuit with adjustable transparency. Background technique [0002] The biggest hidden danger of driving at night is the problem of vision. On the one hand, it is because of the lack of light in the dark, and on the other hand, because the headlights of oncoming vehicles affect driving safety. The light is reflected into the eyes, and the glare of the glare directly affects the driver's line of sight, further affecting driving safety, so the anti-glare function of the rearview mirror is introduced. Anti-glare rearview mirrors can be divided into anti-glare interior rearview mirrors and anti-dazzle exterior rearview mirrors according to their distribution positions; they can also be divided into manual anti-glare and automatic anti-dazzle according to their anti-glare methods . [0003] The automatic anti-glare r...
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IPC IPC(8): B60R1/08
CPCB60R1/088
Inventor 冯钦
Owner HUIZHOU DESAY SV AUTOMOTIVE