Stack Voltage Based Closed-Loop Feedback Control of Electrochromic Glass

    公开(公告)号:US20220404676A1

    公开(公告)日:2022-12-22

    申请号:US17804804

    申请日:2022-05-31

    Abstract: When transitioning an electrochromic (EC) device between two tint levels, a control unit may repeatedly adjust an applied voltage based on a stack voltage of the EC device. The stack voltage of the EC device may be measured and compared to a reference or target stack voltage. The stack voltage may be measured in any of various methods, such as by measuring it directly, via a measured equivalent series resistance, or via an open circuit voltage measurement. The applied voltage may then be changed or adjusted based on the measured stack voltage and the comparison of the stack voltage to the reference value. This process may be repeated multiple times and may essentially be performed continually until the stack voltage attains the desired level or at least attains a level within a predetermine threshold of the desired level.

    Resistivity Control of Coated Glass Units for Uniformity Improvement

    公开(公告)号:US20240003840A1

    公开(公告)日:2024-01-04

    申请号:US18340474

    申请日:2023-06-23

    Abstract: A method implemented by a system for manufacturing a device having a coated transparent substrate is provided. The method includes providing the device having a transparent substrate. The method also includes coating the transparent substrate with a first transparent conductive oxide (TCO) layer in accordance with one or more parameters. The coating the transparent substrate comprises performing a physical deposition process on the transparent substrate. The method further includes determining a resistance across the first TCO layer. In addition, the method includes determining whether the resistance across the first TCO layer is within a resistance range. The method also includes in response to determining that the resistance across the first TCO layer is within the resistance range, coating the device with a second TCO layer in accordance with the one or more parameters to provide a resistance across the second TCO layer that is within the resistance range.

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