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:
Jul. 09, 2019
Filed:
Sep. 29, 2017
Witricity Corporation, Watertown, MA (US);
Douglas Piasecki, Austin, TX (US);
Zhong You, Austin, TX (US);
WITRICITY CORPORATION, Watertown, MA (US);
Abstract
A configurable transmit/receive multiplexed coil monitoring (CMCM) device is provided having a plurality of dual function I/O connections connectable to a plurality of coils. The CMCM device is configurable to selectively drive AC transmit signals to any of the plurality of dual function I/O connections, while simultaneously monitoring voltage and phase information received as AC voltages at the dual function I/O connections in a multiplexed manner. The CMCM device is further configured such that while a selected I/O connection is selected to receive voltage and phase information from a particular I/O connection, no AC transmit signal can be driven to that selected particular I/O connection. Embodiments may include a multiplexer and one or more receive circuits configured to receive and digitalize received AC signals for processing by a digital signal processor. Embodiments may also include selectable Class-D drivers connected to the plurality of I/O connection, wherein each Class-D driver may be configured to receive pulse width modulation (PWM) signals from a PWM circuit for amplification and output as an AC transmit signal.