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:
Oct. 19, 2021
Filed:
Jun. 22, 2018
Western Digital Technologies, Inc., San Jose, CA (US);
Shyam Chavali, Bangalore, IN;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Devices and methods for selectively providing a voltage to an external device. A power adapter comprises a switch between an input voltage line and an output voltage line, a voltage generator configured to produce an output test voltage for delivery to the external device via a test voltage path, a return voltage path for receiving a return voltage from the external device, and a comparator coupled to the return voltage path and configured to control the switch. The switch completes a path between the input voltage line and the output voltage line only if the return voltage matches the reference voltage. The external device comprises an interface for connection to the power adapter and a voltage generator configured to receive the output test voltage from the power adapter and, using the output test voltage, produce and provide the return voltage to the power adapter over the interface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile