Electronic device and its operation system

• US 10,530,189 B2
• Filed: 06/21/2017
• Issued: 01/07/2020
• Est. Priority Date: 01/31/2014
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei
• Primary Examiner(s): Siek, Vuthe
• Application Number:
  US15/628,837
• Publication Number:
  US 20170302100A1
• Time in Patent Office: 930 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 first module comprising a first battery, a first receiving portion, and a first transmitting portion;

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

a power supply management circuit configured to monitor amount of electric power of each of the first battery and the second battery and configured to charge the first battery with electric power wirelessly supplied from the second battery automatically,

wherein each of the first module and the second module is configured to be able to be turned on or turned off independently.

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. An electronic device comprising:

a first module comprising a first battery, a first receiving portion, and a first transmitting portion;

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

a power supply management circuit configured to monitor amount of electric power of each of the first battery and the second battery and configured to charge the first battery with electric power wirelessly supplied from the second battery by operation of a user,

wherein each of the first module and the second module is configured to be able to be turned on or turned off independently.

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

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