Electronic device and its operation system

• US 9,711,994 B2
• Filed: 01/21/2015
• Issued: 07/18/2017
• Est. Priority Date: 01/31/2014
• Status: Active Grant

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei
• Primary Examiner(s): Siek, Vuthe
• Application Number:
  US14/601,269
• Publication Number:
  US 20150222141A1
• Time in Patent Office: 909 Days
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0047 with monitoring or indicating devices or circuits
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

An electronic device carried around by the user is desired to be used for a long period. In order to achieve this, a high-capacity battery may be incorporated. Since a high-capacity battery is large, its incorporation in an electronic device increases the weight of the electronic device. An electronic device used while being implanted in the body of the user, provided with an emergency power supply, is provided. In an electronic device provided with a plurality of batteries, a transmitting portion and a receiving portion conduct wireless charging among different batteries, and the battery to be charged or used is selected by a power supply management circuit depending on the circumstances.

Claims

1. An electronic device comprising:

a central processing unit comprising a first battery, a first receiving portion, and a first transmitting portion, wherein the first receiving portion has a function of wirelessly charging the first battery;

a display unit comprising a second battery, a second receiving portion, and a second transmitting portion, wherein the second receiving portion has a function of wirelessly charging the second battery;

a receiving unit comprising a third battery, a third receiving portion, and a third transmitting portion, wherein the third receiving portion comprises a function of wirelessly charging the third battery;

a transmitting unit having a function of controlling on/off state of the third transmitting portion, the central processing unit, and the display unit; and

a power supply management circuit having a function of monitoring amount of electric power of each of the first battery, the second battery and the third battery and wirelessly charging at least one of the first battery, the second battery, and the third battery with electric power of at least one of the first battery, the second battery, and the third battery.

2. The electronic device according to claim 1, wherein the first battery is electrically connected to the first receiving portion via a first regulator.

3. The electronic device according to claim 1, wherein the second battery is electrically connected to the second receiving portion via a second regulator.

4. The electronic device according to claim 1, wherein the third battery is electrically connected to the third receiving portion via a third regulator.

5. An operation system comprising:

a first battery;

a second battery;

a third battery; and

a power supply management circuit that monitors amount of electric power of each of the first battery, the second battery and the third battery,

wherein the power supply management circuit wirelessly supplies electric power from the first battery to the second battery or the third battery.

6. The operation system according to claim 5, wherein the first battery is electrically connected to a first wireless receiving portion via a first regulator.

7. The operation system according to claim 5, wherein the second battery is electrically connected to a second wireless receiving portion via a second regulator.

8. The operation system according to claim 5, wherein the third battery is electrically connected to a third wireless receiving portion via a third regulator.

9. An electronic device comprising:

a central processing unit comprising a first battery and a first receiving portion, wherein the first receiving portion has a function of wirelessly charging the first battery;

a display unit comprising a second battery and a second receiving portion, wherein the second receiving portion has a function of wirelessly charging the second battery;

a receiving unit comprising a third battery and a third receiving portion, wherein the third receiving portion comprises a function of wirelessly charging the third battery, and

a power supply management circuit configured to monitor amount of electric power of each of the first battery, the second battery and the third battery,

wherein the power supply management circuit wirelessly charge at least one of the first battery, the second battery, and the third battery with electric power of at least one of the first battery, the second battery, and the third battery.

10. The electronic device according to claim 9, wherein the first battery is electrically connected to the first receiving portion via a first regulator.

11. The electronic device according to claim 9, wherein the second battery is electrically connected to the second receiving portion via a second regulator.

12. The electronic device according to claim 9, wherein the third battery is electrically connected to the third receiving portion via a third regulator.

13. An electronic device comprising:

a control module comprising a central processing unit, a first battery, a first receiving portion, and a first transmitting portion;

a display module comprising a display portion, a second battery, a second receiving portion, and a second transmitting portion;

a communication module comprising a communication circuit, a third battery, a third receiving portion, and a third transmitting portion; and

a power supply management circuit,

wherein the first receiving portion has a function of wirelessly charging the first battery, the second receiving portion has a function of wirelessly charging the second battery, and the third receiving portion has a function of wirelessly charging the third battery, and

wherein the communication module has a function of controlling on/off state of the communication circuit, the control module, and the display module.

14. The electronic device according to claim 13, wherein the first battery is electrically connected to the first receiving portion via a first regulator.

15. The electronic device according to claim 13, wherein the second battery is electrically connected to the second receiving portion via a second regulator.

16. The electronic device according to claim 13, wherein the third battery is electrically connected to the third receiving portion via a third regulator.

17. An operation system comprising:

a first battery;

a second battery;

a third battery; and

a power supply management circuit that monitors amount of electric power of each of the first battery, the second battery, and the third battery,

wherein the power supply management circuit is configured to wirelessly supply electric power from the first battery to the second battery or the third battery.

18. The operation system according to claim 17, wherein the first battery is electrically connected to a first receiving portion via a first regulator.

19. The operation system according to claim 17, wherein the second battery is electrically connected to a second receiving portion via a second regulator.

20. The operation system according to claim 17, wherein the third battery is electrically connected to a third receiving portion via a third regulator.