Tunable wireless energy transfer systems
US10673282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2019 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2200/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This application includes a source for a wireless power transfer system including: sensing and measurement circuitry configured to process signals associated with a source resonator and a source impedance matching network including a tunable component; a PWM generator coupled with power transistors of an amplifier coupled with the source impedance matching network, wherein the PWM generator is configured to control a driving signal to drive the source resonator using the power transistors; and a controller coupled with the sensing and measurement circuitry to receive measured signals, wherein the controller is configured to control a component value or an operating point of at least one of the tunable component(s), and the controller is configured to modify operation of the PWM generator based on the measured signals to modify at least a phase of the driving signal while changing power delivered to the source resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.