Battery pack, method and electronic device for controlling its operation device
First Claim
1. A battery pack coupled to an electronic device and including a secondary battery behaving as a power source of the electronic device, comprising:
- a plus terminal and a minus terminal for supplying a current to said electronic device;
a communication terminal for executing communication with said electronic device;
a connection terminal connected to said electronic device when said plus terminal and said minus terminal are properly connected to said electronic device;
battery status measuring means for measuring the temperature and the voltage of said secondary battery; and
mode determining means for establishing one of operation modes in response to the voltages at said communication terminal and said connection terminal;
wherein said modes include;
a normal mode selected when the voltage at said connection terminal exhibits a predetermined level and the voltage at said communication terminal changes, so that the entirety of said battery pack including said battery status measuring means is made operative; and
a low-power consumption mode selected when the voltage at said connection terminal exhibits said predetermined level and the voltage at said communication terminal does not change for a predetermined time, or when the voltage at said connection terminal exhibits a level other than said predetermined level, so that an additional functional portion of said battery including said battery status measuring means is made inoperative.
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Accused Products
Abstract
A battery pack including a secondary battery is coupled to an electronic device to behave as a power source of the electronic device. The battery pack comprises a plus terminal (EB+) and a minus terminal (EB-) for supplying a current to the electronic device, a communication terminal (DATAB) for exchanging data with the electronic device, a connection terminal (BATTINB) connected to said electronic device when the plus terminal and the minus terminal are properly connected to the electronic device, battery status measuring elements (6, 7) for measuring the temperature and the voltage of the secondary battery, and CPU (1) for establishing one of operation modes in response to the voltages at the communication terminal and the connection terminal.
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Citations
5 Claims
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1. A battery pack coupled to an electronic device and including a secondary battery behaving as a power source of the electronic device, comprising:
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a plus terminal and a minus terminal for supplying a current to said electronic device; a communication terminal for executing communication with said electronic device; a connection terminal connected to said electronic device when said plus terminal and said minus terminal are properly connected to said electronic device; battery status measuring means for measuring the temperature and the voltage of said secondary battery; and mode determining means for establishing one of operation modes in response to the voltages at said communication terminal and said connection terminal;
wherein said modes include;a normal mode selected when the voltage at said connection terminal exhibits a predetermined level and the voltage at said communication terminal changes, so that the entirety of said battery pack including said battery status measuring means is made operative; and a low-power consumption mode selected when the voltage at said connection terminal exhibits said predetermined level and the voltage at said communication terminal does not change for a predetermined time, or when the voltage at said connection terminal exhibits a level other than said predetermined level, so that an additional functional portion of said battery including said battery status measuring means is made inoperative. - View Dependent Claims (2, 3)
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4. An electronic device operative in receipt of a current from a battery pack adaptive for communication therewith, comprising:
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a plus terminal and a minus terminal for introducing a current from said battery pack; a communication terminal for executing communication with said battery pack; a connection terminal connected to said battery pack when said plus terminal and said minus terminal are properly connected to said battery pack; and detector means for detecting the status of a power source and for adjusting an output voltage of said communication terminal to a predetermined value, such that a voltage of a predetermined level is output from said connection terminal. - View Dependent Claims (5)
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Specification