Wireless power storage device, semiconductor device including the wireless power storage device, and method for operating the same
First Claim
1. A wireless power storage device comprising:
- an antenna circuit;
a rectifier circuit;
a battery electrically connected to the antenna circuit through the rectifier circuit; and
a discharge control circuit comprising a regulator and a switch,wherein the battery is electrically connected to a load portion through the discharge control circuit,wherein the discharge control circuit is configured to control the supply of electrical power stored in the battery to the load portion by turning on the switch when a voltage level of the battery is equal to or higher than a first threshold level and by turning off the switch when the voltage level of the battery is equal to or lower than a second threshold level, andwherein the first threshold level is higher than the second threshold level.
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Accused Products
Abstract
To simplify charging of a battery in a power storage device which includes the battery. Further, to provide a wireless power storage device which can transmit and receive information without the task of replacing a battery for drive power supply, which becomes necessary when the battery depletes over time, being performed. An antenna circuit, a battery which is electrically connected to the antenna circuit via a rectifier circuit, and a load portion which is electrically connected to the battery are provided. The battery is charged when an electromagnetic wave received by the antenna circuit is input to the battery via the rectifier circuit, and discharged when electrical power which has been charged is supplied to the load portion. The battery is charged cumulatively, and the battery is discharged in pulses.
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Citations
41 Claims
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1. A wireless power storage device comprising:
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an antenna circuit; a rectifier circuit; a battery electrically connected to the antenna circuit through the rectifier circuit; and a discharge control circuit comprising a regulator and a switch, wherein the battery is electrically connected to a load portion through the discharge control circuit, wherein the discharge control circuit is configured to control the supply of electrical power stored in the battery to the load portion by turning on the switch when a voltage level of the battery is equal to or higher than a first threshold level and by turning off the switch when the voltage level of the battery is equal to or lower than a second threshold level, and wherein the first threshold level is higher than the second threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A semiconductor device comprising:
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a first antenna circuit; a power supply portion electrically connected to the first antenna circuit wherein the power supply portion comprises; a rectifier circuit; a battery electrically connected to the first antenna circuit through the rectifier circuit; and a discharge control circuit comprising a regulator and a switch; and a load portion electrically connected to the battery through the discharge control circuit, wherein the first antenna circuit is electrically connected to the battery through the rectifier circuit, wherein the discharge control circuit is configured to control the supply of electrical power stored in the battery to the load portion by turning on the switch when a voltage level of the battery is equal to or higher than a first threshold level and by turning off the switch when the voltage level of the battery is equal to or lower than a second threshold level, and wherein the first threshold level is higher than the second threshold level. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A semiconductor device comprising:
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a first antenna circuit; a power supply portion electrically connected to the first antenna circuit wherein the power supply portion comprises; a rectifier circuit; a battery electrically connected to the first antenna circuit through the rectifier circuit; and a discharge control circuit comprising a regulator and a switch; and a sensor portion electrically connected to the battery through the discharge control circuit, wherein the first antenna circuit is electrically connected to the battery through the rectifier circuit, wherein the discharge control circuit is configured to control the supply of electrical power stored in the battery to the sensor portion by turning on the switch when a voltage level of the battery is equal to or higher than a first threshold level and by turning off the switch when the voltage level of the battery is equal to or lower than a second threshold level, and wherein the first threshold level is higher than the second threshold level. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for operating a wireless power storage device, comprising the steps of:
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receiving an electromagnetic wave by an antenna circuit; charging a battery with electrical power of the electromagnetic wave through a rectifier circuit; and discharging the battery by supplying electrical power stored in the battery to a load portion through a discharge control circuit including a regulator and a switch, wherein the supply of the electrical power is controlled by turning on the switch when a voltage level of the battery is equal to or higher than a first threshold level and by turning off the switch when the voltage level of the battery is equal to or lower than a second threshold level. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification