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US 2011/0254377 A1Published application
Wireless power transmission in electric vehicles
AssigneeQUALCOMM Incorporated
InventorsHanspeter Wildmer, Nigel P. Cook, Lukas Sieber
Life of this patent
Estimating the term…
Abstract
Exemplary embodiments are directed to bidirectional wireless power transfer using magnetic resonance in a coupling mode region between a charging base (CB) and a battery electric vehicle (BEV). For different configurations, the wireless power transfer can occur from the CB to the BEV and from the BEV to the CB.
Claims30
A bidirectional wireless power transceiver, comprising:
- a bidirectional power converter configured to:
- convert a power input signal to an alternating current (AC) power output signal at a wireless power operating frequency when configured in transmit mode, and
- convert a received power AC signal at the wireless power operating frequency to a direct current (DC) power output signal when configured in receive mode;
- and
- an antenna operably configured to:
- generate an electromagnetic near field in a coupling mode region at the wireless power operating frequency from the AC power output signal when configured in transmit mode, and
- generate the received power AC signal from the electromagnetic near field in the coupling mode region at the operating frequency when configured in receive mode.
4 more elements
A method, comprising:
- converting a power input signal to an alternating current (AC) power output signal at a wireless power operating frequency when a bidirectional power converter in a bidirectional wireless power transceiver is configured in transmit mode, and converting a received AC power signal at the wireless power operating frequency to a direct current (DC) power output signal when configured in receive mode;
- and
- generating an electromagnetic near field in a coupling mode region from an antenna at the wireless power operating frequency from the AC power output signal when the bidirectional power converter is configured in the transmit mode, and generating the received AC power signal from the electromagnetic near field in the coupling mode region at the wireless power operating frequency when in the receive mode.
A bidirectional wireless power transceiver, comprising:
- means for converting a power input signal to an alternating current (AC) power output signal at a wireless power operating frequency when a bidirectional power converter in a bidirectional wireless power transceiver is configured in transmit mode, and converting a received AC power output signal at the wireless power operating frequency to a direct current (DC) power output signal when configured in receive mode;
- and
- means for generating an electromagnetic near field in a coupling mode region from an antenna at the wireless power operating frequency from the AC power output signal when the bidirectional power converter is configured in the transmit mode, and generating the received AC power signal from the electromagnetic near field in the coupling mode region at the wireless power operating frequency when in the receive mode.
Dependencies are inferred from the claim text.