The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2020
Filed:
Jul. 05, 2019
Kinestral Technologies, Inc., Hayward, CA (US);
KINESTRAL TECHNOLOGIES, INC, Hayward, CA (US);
Abstract
A dual rail driver for an electrochromic device is provided. The dual rail driver includes a power supply having a first power supply rail and a second power supply rail and an H bridge connected to the first power supply rail and the second power supply rail and configurable to couple to an electrochromic device. The dual rail driver includes a controller coupled to the H bridge through a failsafe module and configurable to control switches of the H bridge to charge and discharge the electrochromic device from the first power supply rail and the second power supply rail. The failsafe module is configurable to override one or more signals from the controller that controls the switches of the H bridge through the failsafe module, responsive to detecting anomaly of the electrochromic device.