PORTABLE RADIO DEVICE ADAPTED TO FUNCTION AS A WIRELESS CHARGER
First Claim
1. A device, comprising:
- a power supply source;
a power control circuit coupled to the power supply source;
a controller coupled to the power supply source and the power control circuit;
a power amplifier connected to the power control circuit to draw a first supply voltage from the power control circuit; and
a source coil,wherein the controller, in response to receiving a request for charging at least one other device coupled to a receiver coil and further when the receiver coil is positioned within a predetermined range of distances from the source coil, switches a connection of the power control circuit to the source coil and further controls the power control circuit to increase the voltage from the first supply voltage to a second supply voltage provided to energize the source coil and to inductively couple the source coil to the receiver coil at a predefined magnetic resonance frequency for wirelessly charging the at least one other device.
1 Assignment
0 Petitions
Accused Products
Abstract
A portable radio device is adapted to function as a wireless charger. The device includes a power supply source, a power control circuit, a controller, a power amplifier connected to the power control circuit to draw a first supply voltage from the power control circuit, and a source coil. In operation, the controller receives a request for charging at least one other device coupled to a receiver coil. When the receiver coil is positioned within a predetermined range of distances from the source coil, the controller switches a connection of the power control circuit to the source coil and controls the power control circuit to increase the voltage to a second supply voltage provided to energize the source coil and to inductively couple the source coil to the receiver coil at a predetermined magnetic resonance frequency for wirelessly charging the at least one other device.
29 Citations
20 Claims
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1. A device, comprising:
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a power supply source; a power control circuit coupled to the power supply source; a controller coupled to the power supply source and the power control circuit; a power amplifier connected to the power control circuit to draw a first supply voltage from the power control circuit; and a source coil, wherein the controller, in response to receiving a request for charging at least one other device coupled to a receiver coil and further when the receiver coil is positioned within a predetermined range of distances from the source coil, switches a connection of the power control circuit to the source coil and further controls the power control circuit to increase the voltage from the first supply voltage to a second supply voltage provided to energize the source coil and to inductively couple the source coil to the receiver coil at a predefined magnetic resonance frequency for wirelessly charging the at least one other device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A portable radio device, comprising:
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a limited power supply source; a power control circuit coupled to the limited power supply source; a radio controller coupled to the limited power supply source and the power control circuit; a radio frequency (RF) power amplifier connected to the power control circuit to draw a first supply voltage from the power control circuit for operating in RF communication mode; and a source coil, wherein the radio controller, in response to receiving a request for charging at least one accessory device coupled to a receiver coil and further when the receiver coil is positioned within a predetermined range of distances from the source coil, switches a connection of the power control circuit to the source coil and further controls the power control circuit to increase the voltage from the first supply voltage to a second supply voltage provided to energize the source coil and to inductively couple the source coil to the receiver coil at a predefined magnetic resonance frequency for wirelessly charging the at least one accessory device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification