KR100455164B1 - A device and a method of displaying remaining capacity for rechargeable battery - Google Patents

Abstract

The present invention relates to easily displaying the current remaining charge capacity in various colors using only the battery package for charging and discharging of the mobile communication terminal, the battery for storing the power by charging and supplying the stored power by discharge Cell; A level shifter for converting and outputting a voltage level by a power output from a battery cell at a predetermined predetermined ratio; A control unit for converting an analog voltage level output from the level shifter into a digital voltage level and comparing the digital voltage level with a predetermined value and outputting the control signal in three levels; It is characterized by consisting of multi-colored LEDs that generate three colors of light respectively by three levels of control signals output from the controller, and measuring the voltage level of the power output from the battery cell by the control signal of the charge / discharge battery controller. A detection process of converting and outputting the set analog level; A conversion process of converting an analog voltage level signal output in the detection process into a digital signal and outputting the digital signal; The remaining capacity charged in the battery cell is characterized by a display process for generating a different light by outputting a corresponding control signal when the digital signal outputted during the conversion is in the range of the corresponding value compared with the predetermined values. It is easy to check, extend the life of the battery cell, and has the effect of improving the reliability.

Description

A DEVICE AND A METHOD OF DISPLAYING REMAINING CAPACITY FOR RECHARGEABLE BATTERY}

The present invention relates to displaying the remaining capacity of the battery for charging and discharging of a mobile communication terminal by itself, and more particularly, to displaying the remaining capacity currently charged using only a battery package in various colors of multicolored LEDs.

The mobile terminal for mobile communication is a device that communicates by wirelessly connecting with the other party anytime, anywhere while moving, and requires a separate operation power supply suitable for portable and easy to remove and attach the battery for power supply as described above. Use (RECHARGEABLE BATTERY).

Due to its inherent characteristics, the above-described charging / discharging battery must be recharged before being discharged below a predetermined internal voltage. To check the current charged remaining capacity of the charging / discharging battery, a portable terminal or a separate Since there is a problem of using the measurement equipment, it was necessary to develop a technology for checking the charge capacity by using only the battery or the battery package.

Hereinafter, a capacity display apparatus of a portable terminal charge / discharge battery according to the prior art will be described with reference to the accompanying drawings.

It is attached to explain the capacity display device of the conventional portable terminal charge-discharge battery, Figure 1 is a functional configuration of the charge-discharge battery capacity display device according to the prior art.

Referring to FIG. 1, the conventional portable terminal charge / discharge battery capacity display device includes a battery package 10 for supplying power stored by charging with discharge. ,

The battery package 10 is detachably coupled to the mobile terminal 20 to receive operating power and simultaneously display the remaining charge capacity of the battery 10 using the built-in display unit 30.

Hereinafter, a portable terminal charge / discharge battery capacity display device according to the related art having the above configuration will be described in detail with reference to FIG. 1.

By attaching the battery package 10 to the portable terminal 20 in a detachable manner, the corresponding contacts are in contact with each other so that the power charged in the battery package 10 is discharged to the portable terminal 20 to the portable terminal 20. Supply the operating power.

When the remaining capacity of the battery package 10 as described above is to be checked, the charging capacity is checked by using the display unit 30 built in the mobile terminal 20.

In addition, a single commercially available portable terminal is supplied with a battery package 10 in use and a spare battery package 10 for replacement. When checking the remaining capacity charged in the spare battery package 10 as described above, by detachably coupled to the portable terminal 20 to separate the battery package 10 currently in use, the spare battery By combining the package 10, it is possible to check the remaining charge capacity using the display unit 30 of the portable terminal 20.

However, the prior art as described above, the portable terminal 20 should be used to check the charging capacity of the battery package 10, the spare or spare battery package 10 that is not coupled to the portable terminal 20. In order to check the remaining charge capacity of the), since the battery package 10 currently coupled to the mobile terminal 20 must be separated and replaced, in the above replacement process, the supply of operating power is cut off, There is a problem that the portable terminal 20 cannot be used.

That is, in order to check the current charging capacity of the battery package 10, there is a problem that the mobile terminal 20 must be used or a separate measuring device must be provided, and the replacement for checking the remaining battery capacity of the battery package 10 is required. There is a problem that the mobile terminal 20 can not be temporarily used in the process. Referring to Korean Patent Laid-Open Publication No. 1998-87629 (98. 12. 5), which is a conventional technique that solves some of the problems described above, The technology monitors the current accumulated and discharged in the battery, calculates the remaining amount, and displays the available time, but it is very complicated such as control unit, ROM, RAM, matching unit, crystal oscillator, current AD converter, and current calculation unit. Since a configuration is required, manufacturing costs are high, and a predetermined volume is required, there is a problem that it is difficult to apply to a compact and lightweight mobile communication terminal battery package. In the prior art for displaying the remaining amount of the battery package, there is a Republic of Korea Patent Publication No. 2000-30874 (June 5, 2000), but not the battery package itself, there is a problem that the main body, at the same time displayed by the time Therefore, there is a problem that its configuration and operation is very complicated and expensive. [0007] Also, in the prior art, referring to Japanese Patent Laid-Open No. 14-164974 (2002. 6.17), when a folding portable terminal is foldered, When a separate key is input, the remaining amount of battery is displayed by using a plurality of color LEDs, but the battery package itself does not check the remaining amount, and there is a problem that the main body of the portable terminal is required. There is a problem that the weight is increased, manufacturing costs are high.

It is an object of the present invention to provide an apparatus and a method of operating the same to check and display the remaining capacity charged in a battery for charge / discharge using a single multicolored LED in a battery package itself without using a separate device. .

The present invention devised to achieve the above object, the battery cell for storing the power supply by charging and supplying the power stored by the discharge; A level shifter for converting and outputting a voltage level by a power output from the battery cell at a predetermined predetermined ratio; A control unit which converts the analog voltage level output from the level shifter into a digital voltage level and compares the digital voltage level with a predetermined value and outputs the control signal in three levels; In accordance with the three-step control signal output from the control unit is characterized by consisting of a multi-color LED for generating light of three colors, respectively.

In addition, the present invention includes a detection process of measuring the voltage level of the power output from the battery cell by the control signal of the charge-discharge battery control unit and converts to a predetermined set analog level and outputs; A conversion step of converting an analog voltage level signal output in the detection step into a digital signal and outputting the digital signal; When the digital signal output during the conversion is in the range of the corresponding value compared with the predetermined values, it is characterized in that the display process for outputting the corresponding control signal to generate different light.

1 is a functional configuration of the charge and discharge battery capacity display device according to the prior art,

2 is a functional configuration diagram of a charge / discharge battery capacity display device according to the present invention;

3 is an external configuration diagram of a charge / discharge battery according to the present invention;

4 is a flowchart of a charge / discharge battery capacity display method according to the present invention.

** Explanation of symbols on the main parts of the drawing **

10,140: battery package 20: mobile terminal

30: display unit 100: battery cell

110: level shifter 120: control unit

130: multicolor LED

Hereinafter, a capacity display device and a method of operating the charge / discharge battery according to the present invention will be described with reference to the accompanying drawings.

2 is a functional configuration diagram of a charge / discharge battery capacity display device according to the present invention, FIG. 3 is an external configuration diagram of the charge / discharge battery according to the present invention, and FIG. Flowchart of charging / discharging battery capacity display method.

Referring to FIG. 2, the charge / discharge battery capacity display device according to the present invention stores and stores power of a predetermined capacity by charging, and discharges and stores the power of the predetermined capacity by DISCHARGE. Battery cell (BATTERY CELL) 100 for supplying the operating power to the mobile terminal by outputting,

A level shifter 110 for reducing and converting the voltage level VOLTAGE LEVEL by the power output from the battery cell 100 at a predetermined predetermined ratio and outputting the converted voltage level;

Converting the voltage level of the analog output from the level shifter 110 into a digital voltage level, and comparing the digital voltage level with a predetermined value and outputting it as a control signal in three stages. The control unit 120,

By generating the three colors (COLOUR) of the light respectively by the three-step control signal output from the control unit 120, three primary colors of light to generate or emit light and multi-color to emit various colors by the control signal It consists of an LED (MULTI COLOUR LED) 130.

In addition, referring to FIG. 3, the battery cell 100, the level shifter 110, the controller 120, and the multicolor LED 130 are integrally formed in one package (PACKAGE). 140, and the multicolored LED 130 is exposed to the outside of the battery package 140 to generate light of a controlled color.

Referring to FIG. 4, the charging / discharging battery capacity display method according to the present invention includes a power supply output from the battery cell 100 by a control signal of the control unit 120 constituting the charging / discharging battery package 140. Measuring a voltage level and converting the voltage level to a predetermined analog level, and outputting the measured voltage level by measuring a voltage by a power output from the charge / discharge battery cell 100 (S10); Detecting and converting the measured voltage to a predetermined ratio and outputting the analog voltage level signal in a shift state (S20);

A conversion step (S30) of converting and outputting a signal of the analog voltage level output in the detection process to a digital voltage level signal;

When the digital value signal output in the conversion process (S30) is compared with the predetermined values, and in the range of the corresponding value, the corresponding control signal is output to generate light of different colors. It is composed of a display process (S40, S50, S60) to divide the output signal is converted into three steps to output the light of the corresponding color set in each step.

Hereinafter, the present invention having the configuration described above will be described in detail with reference to FIGS. 2 to 4 attached to the remaining charge capacity display device and its operation method of the charge-discharge battery.

The battery cell 100 constituting the present invention is to supply the operating power of the mobile terminal by repeatedly charging and discharging, by storing and storing a certain amount of power by charging and outputting the stored and stored power by discharge The operating power is supplied to the portable terminal.

When the charge-discharge-only battery cell 100 is discharged or completely discharged below a predetermined voltage level due to its characteristics, it is damaged and the life of the charge-discharge-only battery cell 100 is shortened. It should be managed so as not to discharge below the level.

The battery cell 100 as described above, even when stored in a fully charged or fully charged state, a natural discharge occurs, and after a certain time, the minimum voltage level of reducing the life of the battery cell 100, so do not use Even if it is regularly charged, it should be kept in a state of maintaining proper voltage.

However, in order to detect the present remaining voltage state of the battery cell 100 as described above, a separate dedicated measuring device or apparatus should be used, but the present invention provides the battery cell 100 embedded in the battery package 140. The remaining charge capacity of the display is displayed using the MULTI COLOUR LED (LED: LIGHT EMITTING DIODE).

Referring to FIG. 2, the capacity display device of the charge / discharge battery according to the present invention reduces the remaining charge capacity charged in the battery cell 100 to a predetermined level while the level shifter 110 detects the remaining charge capacity. The output is converted to the shifted value.

For example, when the voltage level output by the battery cell 100 is detected as 4.15V, the level shifter 110 reduces and outputs the voltage level detected by the battery cell 100. It shifts to 2.3V and outputs the reduced-converted level. When 3.5V is detected, it shifts to 1.8V and reduces-converts the output. When 3.35V is detected, it shifts to 1.2V and reduces-converts the output.

Since the value output from the level shifter 110 is an analog value, it is converted to a digital value by being applied to the controller 120 and processed by ADC (ANALOG TO DIGITAL CONVERTER).

As an example, a digital value converted and outputted as described above is described as an analog 2.3V digital value of 480 to 500, an analog 1.8V digital value of 240 to 260, and an analog 1.2V digital value of 190 to 210. Convert and output

The control unit 120 divides the digital values output as described above by the comparator function in three stages, and outputs corresponding control signals to the MULTI-COLOUR LED 130, respectively. The multi-color LED 130 generates light of a color corresponding to the input control signal, respectively.

For example, when the digital value is in the range of 480 to 500, the control unit 120 outputs a control signal indicating a state in which the battery cell 100 is fully charged to the multicolor LED 130 to generate green light. When the digital value is in the range of 240 to 260, the multicolor LED 130 generates yellow light by a control signal indicating a state in which the charging voltage of the battery cell 100 is insufficient. The digital value is 190 If the range is from 210 to 210, the battery cell 100 is discharged and outputs a control signal indicating an unusable state to the multicolor LED 130 to generate red light.

As described above, the voltage value output from the battery cell 100 is detected by the level shifter 110, shifted to be reduced and outputted, and converted into a digital value by the controller 120 and the control signal is compared and outputted. Summarizing the light of the color output by the multi-color LED 130 in a table as follows.

Battery cell voltage Level shifter Control Multicolor LED 4.15 V 2.3 V 480-500 green 3.5 V 1.8 V 240-260 yellow 3.35 V 1.2 V 190-210 Red

That is, using the color of the light generated from the multi-color LED 130 as shown in the above table, the currently charged remaining capacity of the battery cell 100 can be easily and immediately checked without using a separate measurement equipment or a mobile terminal, Referring to FIG. 3, the multicolor LED 130 is attached to the outside of the battery package 140 as an example.

Referring to FIG. 4, in the operation method using the device configuration as described above, the voltage of the battery cell 100 is measured by the level shifter 110 controlled by the control unit 120 (S10). In operation S20, the measured voltage is shifted and then reduced and converted to the control unit 120.

The control unit 120 converts the analog value input from the level shifter 110 into a digital value (S30), and compares the predetermined digital value with a corresponding control signal by outputting a color of the multicolor LED 130. To control (S40 to S90).

When the display process is compared in detail by the control unit 120 and the corresponding control signal is output, the green color is generated or emitted when the converted digital value is a corresponding value of detecting 4.15 V (S40, S50). If the digital value corresponds to 3.5 V, the yellow color is generated or emitted (S60, S70). If the digital value corresponds to the value detected 3.35 V, the red color is generated or emitted (S80, S90).

As described above, the multicolor LED 130 uses three primary colors, and can change various colors generated or emitted by the control signal output from the controller 120. For example, the multicolor LED 130 can change the preference. It can be changed to various colors such as blue, orange, high gray and so on.

Therefore, the present invention as described above can be easily distinguished by the color of the current remaining charge capacity of the battery cell 100 only by the battery package 140 itself.

The charging / discharging battery charge capacity display device and the method of operating the same according to the present invention configured as described above can easily check the remaining capacity charged in the battery cell using the light generated from the multicolored LEDs integrally provided in the battery package. It is convenient to use.

In addition, it is possible to easily confirm that the battery cell is in the lowest voltage state in which it is destroyed and to recharge, thereby extending the lifespan and improving the reliability.

Claims (6)

A battery cell that stores the power by charging and supplies the stored power by discharge; A level shifter for converting and outputting a voltage level by the power output from the battery cell at a predetermined predetermined ratio; A control unit which converts the analog voltage level output from the level shifter into a digital voltage level, and outputs the control signal in three levels by comparing with a predetermined value; Capacity display device for a charge-discharge battery, characterized in that consisting of a multi-color LED for generating three colors of light respectively by the three-step control signal output from the controller. According to claim 1, The battery cell, the level shifter, the control unit, and the multi-color LED are integrally formed in one package to configure a charge / discharge battery. According to claim 1, The multicolor LED emits three primary colors of light, and the capacitive display device of a charge / discharge battery according to claim 1, wherein the multi-color LED emits light of various colors selected by the control signal of the controller. A detection process of measuring a voltage level of a power output from a battery cell according to a control signal of a charge / discharge battery controller, converting the voltage level into a predetermined analog level, and outputting the same A conversion process of converting an analog voltage level signal output in the detection process into a digital signal and outputting the digital signal; The charging and discharging battery, characterized in that consisting of a display process for generating a different light by outputting a corresponding control signal when the digital signal output during the conversion is in the range of the corresponding value compared to the predetermined predetermined values How to operate. The method of claim 4, wherein the detecting process comprises: Measure the voltage by the power output from the charge and discharge battery cells, A method of operating a charging / discharging battery, characterized in that for outputting the reduced voltage level shifted to the set ratio. The method of claim 4, wherein the displaying process is performed. A method of operating a charge / discharge battery, characterized by dividing a signal converted into a digital value into three stages so that light of a color set in each stage is output.