Electronic apparatus
First Claim
1. An electronic apparatus comprising:
- an antenna that wirelessly receives power;
a power control unit that accumulates or supplies power received by the antenna;
a communication unit that communicates with a power supply apparatus via the antenna;
a switching unit that selectively activates one of a path from the antenna to the power control unit and a path from the antenna to the communication unit; and
a driving unit that drives the switching unit,wherein the driving unit is connected to the antenna via a conversion element that converts an impedance,wherein the driving unit includes;
a rectifier circuit connected to the conversion element; and
a voltage detection unit that detects a voltage value after rectification by the rectifier circuit,wherein the driving unit conducts a second switch connected to an input of the power control unit in a case where the voltage detected by the voltage detection unit exceeds a second threshold larger than a first threshold, and the driving unit outputs a signal to conduct a first switch connected to an input of the communication unit in a case where the voltage detected by the voltage detection falls within a range from the first threshold to the second threshold.
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Accused Products
Abstract
An electronic apparatus includes an antenna that wirelessly receives power; a power control unit that accumulates or supplies power received by the antenna by inputting power; a communication unit that communicates with a power supply apparatus via the antenna; a switching unit that switches between a path from the antenna to the power control unit and a path from the antenna to the communication unit; and a driving unit that operates with power received by the antenna and drive the switching unit, wherein an input impedance of the driving unit viewed from the antenna is higher than an input impedance of the power control unit viewed from the antenna or an input impedance of the communication unit viewed from the antenna.
17 Citations
9 Claims
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1. An electronic apparatus comprising:
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an antenna that wirelessly receives power; a power control unit that accumulates or supplies power received by the antenna; a communication unit that communicates with a power supply apparatus via the antenna; a switching unit that selectively activates one of a path from the antenna to the power control unit and a path from the antenna to the communication unit; and a driving unit that drives the switching unit, wherein the driving unit is connected to the antenna via a conversion element that converts an impedance, wherein the driving unit includes; a rectifier circuit connected to the conversion element; and a voltage detection unit that detects a voltage value after rectification by the rectifier circuit, wherein the driving unit conducts a second switch connected to an input of the power control unit in a case where the voltage detected by the voltage detection unit exceeds a second threshold larger than a first threshold, and the driving unit outputs a signal to conduct a first switch connected to an input of the communication unit in a case where the voltage detected by the voltage detection falls within a range from the first threshold to the second threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification