Invention Grant
- Patent Title: Wireless power transfer system with open loop reactance matching circuitry
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Application No.: US17380615Application Date: 2021-07-20
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Publication No.: US12057706B2Publication Date: 2024-08-06
- Inventor: Hamed Khalilinia
- Applicant: Glowolt Inc.
- Applicant Address: US CA San Mateo
- Assignee: Glowolt Inc.
- Current Assignee: Glowolt Inc.
- Current Assignee Address: US CA Napa
- Agency: Adibi IP Group, PC
- Agent Amir V. Adibi; Andrew C. Palmer
- Main IPC: H02J50/05
- IPC: H02J50/05 ; H01F38/14 ; H02J50/12 ; H02J50/40 ; H02M7/5387 ; H03H11/28 ; H01F27/24 ; H03F3/21

Abstract:
A system includes a power source, a transmitter circuit, a conductor, and a receiver circuit. The transmitter circuit is supplied by the power source and wirelessly supplies the receiver circuit via the conductor. The conductor includes a plurality of distributed capacitances coupled in series with the conductor. The receiver circuit includes a primary coil and a secondary coil. The primary coil has at least two turns and includes a plurality of distributed capacitances. The transmitter circuit includes an Open Loop Reactance Matching (OLRM) control circuit, a first inverter, a second inverter, and a third inverter. The OLRM control circuit controls the first inverter to generate a high frequency AC voltage to be supplied to the conductor. During wireless power transfer, the OLRM control circuit performs reactance matching by controlling the second and third inverters to maintain the transmitter voltage and current in phase without requiring any feedback sensing.
Public/Granted literature
- US20210351618A1 Wireless Power Transfer System With Open Loop Reactance Matching Circuitry Public/Granted day:2021-11-11
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