ELECTRONIC DEVICE, CHARGE, AND ELECTRONIC DEVICE SYSTEM

• US 20150188346A1
• Filed: 12/20/2013
• Published: 07/02/2015
• Est. Priority Date: 12/21/2012
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Inventors: Oku, Hiroyuki
• Application Number:
  US14/416,521
• Publication Number:
  US 20150188346A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H02J 7/00304 Overcurrent protection

Abstract

An electronic device 1 includes a secondary battery 20, a charging connection section P1 configured to be connected to an external charger 30, a switch section 16 electrically connected to the charging connection section P1 and the secondary battery 20 and configured to perform switching between conduction and shut-off, and an authentication communication connection section T1 configured to receive at least first data. The switch section 16 can become conductive in the case that the first data is predetermined data and that the voltage of the charging connection section P1 is a predetermined voltage, and the switch section is shut off at least in the case that the first data is not the predetermined data or in the case that the voltage of the charging connection section P1 is not the predetermined voltage.

Claims

1. An electronic device being operable by using a detachable secondary battery as a power source, the electronic device comprising:

first and second charging connection sections configured to be connected to an external charger;

a switch section configured to perform switching between conduction and shut-off of an electric path for electrically connecting the first charging connection section and the detachable secondary battery when the detachable secondary battery is mounted;

a communication connection section configured to at least receive first authentication data from and transmit second authentication data to the external charger; and

a charging power output section configured to output the charging power supplied from the second charging connection section to the secondary battery,

wherein the switch section can become conductive in the case that the first authentication data received by the electronic device is predetermined data and that the charging voltage applied to the first charging connection section after the electronic device transmits the second authentication data is within a predetermined range, and the switch section cannot become conductive at least in the case that the received first authentication data is not the predetermined data; and

wherein the secondary battery can be charged by using the charging power supplied to either the first charging connection section or the second charging connection section.

2. The electronic device according to claim 1, further comprising:

a second communication connection section configured to transmit at least command data to the external charger,

wherein charging power is supplied to either the first charging connection section or the second charging connection section on the basis of the transmitted command data.

3. An electronic device being operable by using a detachable secondary battery as a power source, the electronic device comprising:

first and second charging connection sections configured to be connected to an external charger;

a switch section electrically connected to the first charging connection section and the detachable secondary battery when the detachable secondary battery is mounted and configured to perform switching between conduction and shut-off;

a communication connection section configured to at least receive first authentication data from and transmit second authentication data to the external charger; and

a charging power output section configured to output the charging power supplied from the second charging connection section to the secondary battery at a predetermined level,

wherein the switch section can become conductive in the case that the first authentication data received by the electronic device is predetermined data and that the charging voltage applied to the first charging connection section after the electronic device transmits the second authentication data is almost the same as a predetermined value, and the switch section cannot become conductive at least in the case that the received first authentication data is not the predetermined data or the applied charging voltage is not almost the same as the predetermined value; and

wherein the secondary battery can be charged by using the charging power supplied to either the first charging connection section or the second charging connection section.

4. The electronic device according to claim 3, further comprising:

a second communication connection section configured to transmit at least command data to the external charger,

wherein charging power is supplied to either the first charging connection section or the second charging connection section on the basis of the transmitted command data.

5. An electronic device system comprising:

an electronic device, being operable by using a secondary battery as a detachable power source, comprising;

a first charging connection sections configured to be connected to an external charger;

a switch section electrically connected to the first charging connection section and the detachable secondary battery when the detachable secondary battery is mounted and configured to perform switching between conduction and shut-off;

a first communication connection section configured to at least receive first authentication data from and transmit second authentication data to the external charger; and

a second communication connection section configured to transmit at least command data; and

a charger comprising;

a second charging connection section configured to be connected to the electronic device;

a third communication connection section configured to at least transmit the first authentication data to and receive the second authentication data from the electronic device;

a fourth communication connection section configured to at least receive the command data from the electronic device; and

a first charging power output section configured to output charging power to the second charging connection section,

wherein the switch section can become conductive in the case that the first authentication data received by the electronic device is predetermined data and that the charging voltage applied to the first charging connection section after the electronic device transmits the second authentication data is almost the same as a predetermined value, and the switch section cannot become conductive at least in the case that the received first authentication data is not the predetermined data or the applied charging voltage is not almost the same as the predetermined value; and

wherein the charger performs control for judging whether the first charging power output section outputs a predetermined current to the second charging connection section on the received command data.

6. The electronic device system according to claim 5, wherein the first charging connection section and the first communication connection section of the electronic device are used in common, and the second charging connection section and the third communication connection section of the charger are used in common.

7. The electronic device system according to claim 5, wherein the charger comprises a third charging connection section configured to be connected to the electronic device,

wherein the electronic device comprises a fourth charging connection section configured to be connected to the external charger and a second charging power output section configured to output the charging power supplied from the fourth charging connection section to the secondary battery at a predetermined level;

and

wherein the second charging power output section can output charging power to the secondary battery at least in the case that the first charging power output section does not output the predetermined current to the second charging connection section.