Electric power charge and discharge system
View Patent ↗An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wireless charging portion including a second battery, the first battery is charged by electric power from a fixed power supply and the second battery is charged by using electromagnetic waves existing in an external space. Further, the first battery and the second battery are discharged alternately, and during a period in which the first battery is discharged, the second battery is charged.
1. A wireless communication device comprising:
an electrical device comprising:
a connector;
a battery electrically connected to the connector;
an inner circuit electrically connected to the battery; and
a wireless charge controlling circuit electrically connected to the battery and the connector,
wherein an antenna is attachable to and detachable from the connector,
wherein the wireless charge controlling circuit is configured to transform a wireless electric power received by the antenna into a voltage capable of charging the battery,
wherein the battery is configured to be charged by electric power from the antenna in a first state, and
wherein the battery is configured to be charged by electric power from an external power supply source through a cable in a second state.
2. The wireless communication device according to claim 1 , wherein the connector is a communication connector electrically connected to the inner circuit.
3. The wireless communication device according to claim 1 , wherein the wireless charge controlling circuit comprises a rectifier circuit, a constant voltage circuit, a booster circuit, and a diode.
4. The wireless communication device according to claim 1 , wherein the battery is a lithium ion battery.
5. The wireless communication device according to claim 1 , wherein the battery is a double-layer electrolytic capacitor.
6. A wireless communication device comprising:
an electrical device comprising:
a first connector;
a second connector;
a battery electrically connected to the first connector and the second connector;
an inner circuit electrically connected to the battery; and
a wireless charge controlling circuit electrically connected to the battery and the first connector,
wherein an antenna is attachable to and detachable from the first connector,
wherein the wireless charge controlling circuit is configured to transform a wireless electric power received by the antenna into a voltage capable of charging the battery,
wherein the battery is configured to be charged by a first electric power from the antenna in a first state, and
wherein the battery is configured to be charged by a second electric power from an external power supply source through the second connector and a cable in a second state.
7. The wireless communication device according to claim 6 , wherein the first connector is a communication connector electrically connected to the inner circuit.
8. The wireless communication device according to claim 6 , wherein the electrical device further comprises a charge switching circuit electrically connected to the battery and the second connector.
9. The wireless communication device according to claim 6 , wherein the wireless charge controlling circuit comprises a rectifier circuit, a constant voltage circuit, a booster circuit, and a diode.
10. The wireless communication device according to claim 6 , wherein the battery is a lithium ion battery.
11. The wireless communication device according to claim 6 , wherein the battery is a double-layer electrolytic capacitor.
12. A wireless communication device comprising:
an electrical device comprising:
a connector;
a battery electrically connected to the connector; and
a wireless charge controlling circuit electrically connected to the battery and the connector,
wherein an antenna is attachable to and detachable from the connector,
wherein the wireless charge controlling circuit is configured to transform a wireless electric power received by the antenna into a voltage capable of charging the battery,
wherein the battery is configured to be charged by electric power from the antenna in a first state, and
wherein the battery is configured to be charged by electric power from an external power supply source through a cable in a second state.
13. The wireless communication device according to claim 12 , wherein the wireless charge controlling circuit comprises a rectifier circuit, a constant voltage circuit, a booster circuit, and a diode.
14. The wireless communication device according to claim 12 , wherein the battery is a lithium ion battery.
15. The wireless communication device according to claim 12 , wherein the battery is a double-layer electrolytic capacitor.