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公开(公告)号：US20240345424A1
公开(公告)日：2024-10-17
申请号：US18292800
申请日：2022-10-10
Applicant: Webasto SE
Inventor： Rainer Staude , Rudolf Haeussermann
CPC classification number: G02F1/0121 , B60J3/04 , G02F2201/50
Abstract: A glass panel device having a switchable glass panel and a control unit for controlling the switchable glass panel with a control voltage is provided, where the control voltage is composed of a first AC voltage signal and a second AC voltage signal, where the first AC voltage signal is phase-shifted by 180° with respect to the second AC voltage signal; the control unit has a first analogue amplifier for amplifying the first AC voltage signal comprising two first power switches and a second analogue amplifier for amplifying the second AC voltage signal comprising two second power switches, where each one power switch of the two analogue amplifiers together form an upper voltage circuit and the respective other power switches of the two analogue amplifiers together form a lower voltage circuit.
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