Dimming glass control device and method and medium

A technology of dimming glass and control devices, which is applied in the direction of electrical program control, program control in sequence/logic controller, optics, etc., to achieve the effect of improving accuracy and stability
CN113985752APending Publication Date: 2022-01-28KOSTAL SHANGHAI ELECTROMECHANICAL CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KOSTAL SHANGHAI ELECTROMECHANICAL CO LTD
Publication Date
2022-01-28

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Abstract

The invention discloses a dimming glass control device and method and a medium thereof, and aims to solve the problem that a control device commonly used at present cannot well meet the requirements of an EC film for the direct current voltage precision and stability. The device comprises a control unit and a main circuit, the control unit is connected with the main circuit and an upper computer and is used for receiving an electric signal of the EC film returned by the main circuit, sending the electric signal to the upper computer and sending a control signal to the main circuit according to the control information sent by the upper computer so as to control the color change of the EC film; and the main circuit comprises an operational amplifier, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the first transistor and the second transistor work in an amplification region, so that the whole control process works in a linear region, the linear control is realized, and the precision and the stability of the control voltage are further improved on the basis of original control, and the requirements of EC glass for the high precision and high stability of the direct-current voltage are met.
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Description

technical field

[0001] The present application relates to the field of dimming glass control, in particular to a dimming glass control device, method and medium thereof. Background technique

[0002] With the high intelligence of automobiles in recent years and the increasingly rich products in the car, the traditional automobile glass has a single light transmittance and cannot meet the diverse requirements of users. Therefore, smart dimming glass is more and more used in In automobile manufacturing, smart dimming glass realizes the color changing function by adding an electrochromic film to the glass structure. Now the common polymer dispersed liquid crystal (PDLC) film has high haze and poor visual effect. The electrochromic (EC) film has lower haze, better visual effect, and lower operating voltage, but requires higher precision and stability of DC voltage.

[0003] At present, the commonly used control devices applied to PDLC membranes cannot well meet the requirements...

Claims

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