Invention Grant
- Patent Title: Systems and methods for low power excitation in high power wireless power systems
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Application No.: US17556309Application Date: 2021-12-20
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Publication No.: US11695300B2Publication Date: 2023-07-04
- Inventor: Bryan Esteban , Milisav Danilovic , Kylee Devro Sealy
- Applicant: WiTricity Corporation
- Applicant Address: US MA Watertown
- Assignee: WiTricity Corporation
- Current Assignee: WiTricity Corporation
- Current Assignee Address: US MA Watertown
- Agency: Goodwin Procter LLP
- Main IPC: H02J50/12
- IPC: H02J50/12 ; B60L53/122 ; H02M1/42 ; H02M7/5387 ; H02J50/80 ; H02J50/90 ; H02M1/08

Abstract:
Disclosed herein are systems and methods for low power excitation of wireless power transmitters configured to transmit high power. The exemplary systems and methods include disabling a power factor correction circuit of the transmitter, and adjusting one or more variable impedance components of the impedance network to obtain a minimum attainable impedance. The variable impedance components can be configured to operate between the minimum attainable impedance and a maximum attainable impedance. The systems and methods can include adjusting a phase shift angle associated with one or more transistors of the inverter and driving the transmitter such that the transmitter resonator coil generates a magnetic flux density less than or equal to a field safety threshold.
Public/Granted literature
- US20220115913A1 SYSTEMS AND METHODS FOR LOW POWER EXCITATION IN HIGH POWER WIRELESS POWER SYSTEMS Public/Granted day:2022-04-14
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