Battery charging apparatus
First Claim
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1. An electric apparatus having a function to check a battery, comprising:
- (a) said battery for supplying the power to said apparatus;
(b) measuring means for measuring a terminal voltage of said battery at a predetermined period in the course of battered charging;
(c) display means for displaying information corresponding to a usable time of said battery in accordance with the terminal voltage of said battery; and
(d) display control means having a memory stored with a plurality of sets of control data each controlling a displaying state of said display means which state corresponds to the terminal voltage of said battery, for reading out a set of control data from among said plurality of sets of control data stored in said memory in accordance with the terminal voltage of said battery measured by said measuring means and for outputting said set of control data thus read out to said display means.
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Abstract
A charging apparatus for charging a secondary battery arranged in such a manner that the interterminal voltage of the battery, which is being charged, is measured so that the charging status of the battery is detected in accordance with the measured interterminal voltage of the battery which is being charged and the charging/discharging characteristics with respect to the interterminal voltage of the battery. As a result, the charging status of the battery can accurately be detected.
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Citations
28 Claims
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1. An electric apparatus having a function to check a battery, comprising:
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(a) said battery for supplying the power to said apparatus; (b) measuring means for measuring a terminal voltage of said battery at a predetermined period in the course of battered charging; (c) display means for displaying information corresponding to a usable time of said battery in accordance with the terminal voltage of said battery; and (d) display control means having a memory stored with a plurality of sets of control data each controlling a displaying state of said display means which state corresponds to the terminal voltage of said battery, for reading out a set of control data from among said plurality of sets of control data stored in said memory in accordance with the terminal voltage of said battery measured by said measuring means and for outputting said set of control data thus read out to said display means. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electric apparatus having a function to check a battery, comprising:
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(a) said battery for supplying the power to said apparatus; (b) measuring means for measuring an electromotive force of said battery at a predetermined period in the course of battery charging; (c) display means for displaying information corresponding to a usable time of said battery in accordance with the electromotive force of said battery; and (d) display control means having a memory stored with a plurality of sets of control data each controlling a displaying state of said display means which state corresponds to the electromotive force of said battery, for reading out a set of control data from among said plurality of sets of control data stored in said memory in accordance with the electromotive force of said battery measured by said measuring means and for outputting said set of control data thus read out to said display means. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An electric apparatus having a function to charge a secondary battery, comprising:
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(a) said battery for supplying the power to said apparatus; (b) measuring means for measuring a terminal voltage of said battery at a predetermined period in the course of battery charging; (c) display means for displaying information corresponding to a usable time of said battery in accordance with the terminal voltage of said battery; and (d) display control means having a memory stored with a plurality of sets of control data each controlling a displaying state of said display means which state corresponds to the terminal voltage of said battery, for reading out a set of control data from among said plurality of sets of control data stored in said memory in accordance with the terminal voltage of said battery measured by said measuring means and for outputting said set of control data thus read out to said display means. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An electric apparatus having a function to charge a battery, comprising:
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(a) said battery for supplying the power to said apparatus; (b) measuring means for measuring an electromotive force of said battery at a predetermined period in the course of battery charging; (c) display means for displaying information corresponding to a usable time of said battery in accordance with the electromotive force of said battery; and (d) display control means having a memory stored with a plurality of sets of control data each controlling a displaying state of said display means which state corresponds to the electromotive force of said battery, for reading out a set of control data from among said plurality of sets of control data stored in said memory in accordance with the electromotive force of said battery measured by said measuring means and for outputting said set of control data thus read out to said display means. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification