RECONFIGRABLE CHARGING STATION FOR EXTENDED POWER CAPABILITY AND ACTIVE AREA
First Claim
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1. A power transmission unit (PTU), comprising:
- a power amplifier configured to provide an output current;
a matching circuit coupled to the power amplifier to convert the output current of the power amplifier to a substantially constant voltage (Vtx);
an impedance inversion circuitry coupled to the matching circuitry, the impedance inversion circuitry to receive the substantially constant voltage output (Vtx) from the matching circuit and provide a substantially constant current (Itx); and
a resonator to receive the substantially constant current from the impedance inversion circuitry.
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Abstract
The disclosure relates to a method, apparatus and system for reconfigurable wirelessly charging architecture for extended power capability and charging area. In certain embodiments, the disclosed embodiments relate provide a scalable wireless charging architecture which may include a constant voltage operating point between power amplifier (PA) and resonator modules to thereby support dynamic expansion of service area for larger infrastructure deployment.
6 Citations
25 Claims
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1. A power transmission unit (PTU), comprising:
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a power amplifier configured to provide an output current; a matching circuit coupled to the power amplifier to convert the output current of the power amplifier to a substantially constant voltage (Vtx); an impedance inversion circuitry coupled to the matching circuitry, the impedance inversion circuitry to receive the substantially constant voltage output (Vtx) from the matching circuit and provide a substantially constant current (Itx); and a resonator to receive the substantially constant current from the impedance inversion circuitry. - View Dependent Claims (2, 3, 4, 5)
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6. A power transmission unit (PTU), comprising:
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a first circuitry to provide a substantially constant output voltage (Vtx), the first circuitry having a plurality of power amplifiers coupled to a plurality of matching circuits, respectively; a second circuitry to receive and convert the substantially constant output voltage (Vtx) to a substantially constant current (Itx), the second circuitry having a plurality of resonator modules corresponding to each of the plurality of power amplifiers; a controller to detect external load and engage one or more of the plurality of power amplifiers in response to the detected external load. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method for wirelessly charging a mobile device, the method comprising:
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amplifying an alternating current (AC) input voltage to provide an first voltage; conditioning the first voltage to provide a substantially constant output voltage (Vtx); converting the substantially constant voltage (Vtx) to a substantially constant current (Itx) output; tuning the substantially constant current (Itx) output to electromagnetically engaging and wirelessly charging one or more resonator coils. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A non-transitory machine-readable storage medium storing instructions which, when executed, causes wireless charging of an external device by performing a method comprising:
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amplifying an alternating current (AC) input voltage to provide an first voltage; conditioning the first voltage to provide a substantially constant output voltage (Vtx); converting the substantially constant voltage (Vtx) to a substantially constant current (Itx) output; tuning the substantially constant current (Itx) output to electromagnetically engaging and wirelessly charging one or more resonator coils. - View Dependent Claims (22, 23, 24, 25)
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Specification