CN1219218C - Charge or discharge state indicator of battery for protable electronic products - Google Patents
Charge or discharge state indicator of battery for protable electronic products Download PDFInfo
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- CN1219218C CN1219218C CN 99123302 CN99123302A CN1219218C CN 1219218 C CN1219218 C CN 1219218C CN 99123302 CN99123302 CN 99123302 CN 99123302 A CN99123302 A CN 99123302A CN 1219218 C CN1219218 C CN 1219218C
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Abstract
The present invention relates to a charge-discharge state display circuit of a charge battery for portable electronic products, which comprises a plurality of LED indicating lamps, a latch circuit and a control circuit, wherein the LED indicating lamps are composed of indication LEDs for indicating the electric quantity of the battery. The latch circuit is controlled by control signals generated by the control circuit and changes light and extinguishment states of the LED indicating lamps by using data latched by the latch circuit. The control circuit respectively sends a first sequence data group denoting the battery in a charge state and a second sequence data group denoting the battery in a discharge state to the latch circuit according to the actual charge-discharge state of the battery. Therefore, the present charge-discharge state of the battery can be displayed by using the original LED indicating lamps of the portable electronic products.
Description
The present invention relates to a kind of battery charging and discharging status display circuit of portable type electronic product, the rechargeable battery that the present invention is adopted at known notebook (notebook) type computer especially only can demonstrate the shortcoming of current battery electric weight and be improved, make the operator can check out in operating process that present rechargeable battery is to be in charged state or discharge condition at any time, thereby more can grasp the behaviour in service of electric power.
Therefore the greatest feature of laptop promptly is its portability, and the user can carry laptop, uses it easily in can be in all case.Yet for any portable type electronic product, except the little requirement of in light weight and volume, the electric power supply problem often also is considerable problem.Owing to be not easy to obtain power supply in mobile occasion, the therefore general electric supply installation that adopts rechargeable battery as laptop.
Hence one can see that, and the rechargeable battery characteristic in the laptop is considerable element for the operating characteristic of this computer.Therefore, for the rechargeable battery in the general use, can allow the user grasp the information of the rechargeable battery in the use at any time.Fig. 1 represents general designated symbol of indicating the electric quantity of rechargeable battery in using in laptop.As shown in the figure, 4 strip light emitting diodes arranged side by side (Light Emitted Diode is hereinafter to be referred as LED) 10a, 10b, 10c, 10d have been comprised in the battery electric quantity display device 1.Whether LED is the go out state of (lit-off) of lamp bright (lit-up) or lamp, is the electric weight by battery reality, and the control by peripheral control circuit determines.When the battery electric quantity of correspondence was in fully charged state, LED 10a, 10b, 10c, 10d all were in the bright state of lamp, represented that its electric weight is 100%; And when corresponding battery electric quantity for full charge volume 3/4 the time, LED 10a, 10b, 10c are in the bright state of lamp, and LED 10d is in the lamp state that goes out, and represents that its electric weight is 75%, the rest may be inferred for all the other.Therefore, the user can grasp the power state of current battery according to this information.
But, traditional battery electric quantity display device can only be expressed the present power state of battery, and can not express the residing charging and discharging state of current battery, promptly the operator can't know that battery is to be in charged state, discharge condition or standby (stand-by) state at present.In general way, if demonstrate the charging and discharging state of current battery, mostly with other pilot lamp (being constituted) or other display device shows by LED.Yet such mode obviously is extra burden for system.Simultaneously, for the user,, also be not easy more directly to understand because display lamp is too much.Therefore be necessary original display mode is done further to improve, reach the purpose of the present charging and discharging state that shows rechargeable battery.
In view of this, fundamental purpose of the present invention is to provide a kind of battery charging and discharging status display circuit that is used in portable type electronic product, in order in use, not only can demonstrate the actual electric power of current battery, also can demonstrate this battery simultaneously is to be in charged state, discharge condition or idle state at present.
Another object of the present invention is to provide a kind of battery charging and discharging status display circuit that is used for portable type electronic product, and it can demonstrate the charging and discharging state and the actual electric power of current battery in the lump in same group of display device.
Another purpose of the present invention is to provide a kind of battery charging and discharging status display circuit that is used for portable type electronic product, it can use original element of this portable type electronic product to reach the purpose that shows charging and discharging state as much as possible, uses and reduces the extra cost that increases.
According to above-mentioned purpose, the present invention proposes a kind of battery charging and discharging status display circuit that is used for portable type electronic product, in order to show the battery status of this portable type electronic product.This circuit comprises a plurality of LED light, latch cicuit and control circuit.The LED light utilization shows that generally the demonstration LED of battery electric quantity constitutes.Have several output ports in the latch cicuit, in order to connecting these pilot lamp respectively, so latch cicuit institute latched data can be used for controlling the light on and off state of these pilot lamp.In addition, this latch cicuit also is controlled by a control signal, utilizes this control signal, can determine the output time of latch data.Control circuit then utilizes original multifunction key disk controller formation in the portable type electronic product, charging and discharging state according to battery reality, it sends the first sequence data group and the second sequence data group respectively to latch cicuit, and utilizes its time clock output to produce this control signal.Wherein, the first sequence data group is used for making these pilot lamp to present repeatedly one by one the bright state of lamp, uses the expression battery and is in charged state.The second sequence data group is used for making these pilot lamp to present repeatedly one by one the lamp state that goes out, and uses the expression battery and is in discharge condition.In addition, control signal can be used for controlling the time sequencing of these pilot lamp light on and off, and when each loop ends, demonstrates actual power state.In addition, when battery was in stand-by state, control circuit was only sent the designation data that is used to refer to the actual electric power of battery.
For making above-mentioned purpose of the present invention, feature and advantage more obvious, a preferred embodiment cited below particularly, and conjunction with figs. elaborates.In these accompanying drawings:
Fig. 1 represents the synoptic diagram of indicating electric quantity of rechargeable battery symbol in the general known laptop.
Fig. 2 represents the hardware circuit figure of the demonstration battery charging and discharging state in the embodiment of the invention.
Fig. 3 A, 3B and 3C are illustrated respectively in the present embodiment, the synoptic diagram of electric weight symbol show state when battery is in charging, discharge, stand-by state respectively.
Shown in the 1st figure, battery charging and discharging status display circuit provided by the invention utilizes original battery electric quantity display device, and can demonstrate the charging and discharging state of this battery simultaneously.In addition, when realizing battery charging and discharging status display circuit of the present invention, can utilize the original element in the portable type electronic product (as laptop) to be implemented, can under the condition that does not increase too many cost, reach purpose of the present invention thus.Following conjunction with figs. illustrates embodiments of the invention, in this embodiment, is example with the rechargeable battery in the laptop.Generally, laptop has two batteries (group), and the demand of cooperated power supply, adjusts and discharges or the battery that charges.Yet following examples are not in order to limit the present invention, for the people of the technology of being familiar with this area, via suitable change, can easily use the present invention in other different occasions, and still not break away from spirit of the present invention.
Fig. 2 represents to show in the embodiment of the invention hardware circuit figure of battery charging and discharging state.As shown in Figure 2, this hardware components that shows the battery charging and discharging state comprises multifunction key disk controller 100, latch 120 and the electric quantity display device 140a and the 140b that represent two rechargeable batteries in the laptop respectively.In the present embodiment, multifunction key disk controller 100 is to be made of IC (integrated circuit) 51SL that often uses in the general laptop, as control device.51SL is except can supervisory keyboard, and other peripherals of control in laptop also is as mouse.In the present embodiment, multifunction key disk controller 100 only need take few processing time, so can utilize the free time beyond transmission keyboard or the mouse data to finish.In the present embodiment, multifunction key disk controller 100 receives the battery charging and discharging indicator signal of sending from battery by an input port, and according to this indicator signal, produces different sequence signal groups to its output port DB (0:7).120 of latchs utilize IC74374 to constitute, its input port is connected to the output port DB (0:7) that sends the sequence signal group from multifunction key disk controller 100, and at clock pulse signal terminal CLK (in the present embodiment, the time clock that it is connected to multifunction key disk controller 100 is interrupted terminal 51WR) control under, these data are delivered to electric quantity display device 140a and 140b respectively, in order to control the mode of its demonstration.In this embodiment, four of DB (0:3) four LED light 10a, 10b, 10c, 10d that are used for respectively controlling among the electric quantity display device 140a corresponding to Fig. 1; Four of DB (4:7) are used for controlling among the electric quantity display device 140b four LED light 10a, 10b, 10c, the 10d corresponding to Fig. 1 respectively.Meanwhile, the signal on the terminal 51WR then can be with deciding each sets of signals in this sequence signal group to be presented at demonstration time among electric quantity display device 140a and the 140b.
Fig. 3 A, 3B and 3C are illustrated respectively in the present embodiment, the synoptic diagram of electric weight symbol show state when battery is in charging, discharge, stand-by state respectively.Fig. 3 A represents that battery is in charged state, and present power state is 75%.As shown in the figure, the show state of electric quantity display device is changed to state S4 in regular turn by state S1, and wherein, the bright LED light of indication lamp then becomes 4 by 1,2,3, increases successively.The Hou of state S4, then demonstrate the electric power of present reality, promptly 75%, shown in state S5.Therefore, the user can know that corresponding battery is in charged state at present by state S1～S4, and actual simultaneously electric power is 75%.In addition, by interval time of state S1 to S2, state S2 to S3, state S3 to S4, state S4 to S5 being 0.25 second, and when getting back to S1, then stop the long time (1 second) by state S5.As mentioned above, these times all can utilize the terminal 51WR of multifunction key disk controller 100 to control.
Fig. 3 B represents that battery is in discharge condition, and present power state is 75%.Be with the difference of Fig. 3 A, be changed in regular turn by state S6 in the process of S9 that the bright LED light of indication lamp becomes 1 from 4,3,2 Hous, reduces successively.And, then demonstrate the electric power of present reality the Hou of state S9, and promptly 75%, shown in state S10.Similarly, the user can know that corresponding battery is in discharge condition at present by state S6～S9, and actual electric power is 75%.In addition, by interval time of state S6 to S7, state S7 to S8, state S8 to S9, state S9 to S10 also being 0.25 second, then stopped for 1 second during to S6 by state S10.
Fig. 3 C represents that battery is in the state of standby (promptly neither charging is not discharged yet), and present power state is 75%.Be need not show charging or discharge condition with the two kinds of situation differences in front, and only need show the state (being S11) of present actual electric power.The user can recognize in view of the above that just battery is in stand-by state at present, and actual electric power is 75%.
With reference to figure 2 and Fig. 3 A, 3B and 3C, below with the work of concrete instance explanation present embodiment circuit.Situation in this example is: the battery corresponding to electric quantity display device 140a is in charged state, and its present actual electric weight is 25%; Battery corresponding to electric quantity display device 140b is in discharge condition, and its present actual electric weight is 75%.During beginning, the indicator signal of being sent by battery that discharges and recharges is sent to multifunction key disk controller 100 with above-mentioned information.According to this information, multifunction key disk controller 100 is the sequence signal group below exporting in regular turn on its output port just: (11110001), (01110011), (00110111), (00011111), (01110001).Simultaneously, utilize terminal 51WR to send pulsating wave corresponding to 0.25,0.25,0.25,0.25,1.00 second.Latch 120 cooperates the received gating pulse ripple of time clock terminal CLK, respectively four low levels in the above-mentioned sequence signal group (being DB (3:0)) are delivered to electric quantity display device 140a as the first sequence signal group, in addition four high positions (being DB (7:4)) as the second sequence signal group, are delivered to electric quantity display device 140b.That is, the first sequence signal group is (0001) (0.25 second), (0011) (0.25 second), (0111) (0.25 second), (1111) (0.25 second), (0001) (1.00 seconds), makes electric quantity display device 140a indicate the electric power of charged state and 25%.The second sequence signal group then is (1111) (0.25 second), (0111) (0.25 second), (0011) (0.25 second), (0001) (0.25 second), (0111) (1.00 seconds), makes electric quantity display device 140b indicate the electric power of discharge condition and 75%.Therefore, the operator promptly can judge the state of corresponding battery according to the demonstration of electric quantity display device 140a and 140b.
Charge or discharge state indicator of battery of the present invention not only can be applied to the laptop of present embodiment, can also be applied to simultaneously other portable type electronic product, as personal digital assistant (personaldigital agent, PDA) or the like.Advantage division of the present invention is as follows:
1. owing to used original electric quantity display device (barcode LED) to show the charging and discharging state of battery in the lump, therefore for the operator, the virtual condition that current battery be can perceive easily, actual electric power and the state that discharges and recharges comprised.So can allow the user be easier to understand the virtual condition of battery.
2. as shown in this embodiment, whole charging and discharging utilizes original element to be finished, and with cost benefit, the conventional art of wanting Billy to represent with different display lamps certainly has more industrial value.
Though the present invention discloses as above by preferred embodiment; but do not attempt to be used for limiting the present invention; the people of any skilled; without departing from the spirit and scope of the present invention; still can make various changes and modification, so protection scope of the present invention should be by the scope decision that appending claims defined.
Claims (7)
1. battery charging and discharging status display circuit that is used for portable type electronic product in order to show the battery status of this portable type electronic product, is characterized in that comprising:
A plurality of pilot lamp;
Latch cicuit, it has a plurality of output ports, and in order to connect described a plurality of pilot lamp respectively, described latch cicuit is exported the light on and off that its latched data is controlled described a plurality of pilot lamp, described latch cicuit also is controlled by a control signal, and this signal deciding is exported the time of its latched data; And
Control circuit, it is sent the first sequence data group and the second sequence data group respectively to described latch cicuit, and produces described control signal according to the charging and discharging state of described battery; The described first sequence data group is with so that described a plurality of pilot lamp presents repeatedly the bright state of lamp one by one, and according to described control signal, controls described a plurality of pilot lamp bright time of lamp one by one, represents that described battery is in charged state; The described second sequence data group is with so that described a plurality of pilot lamp presents repeatedly the state that lamp one by one goes out, and according to described control signal, controls described pilot lamp lamp time of going out one by one, represents that described battery is in discharge condition.
2. battery charging and discharging status display circuit as claimed in claim 1 is characterized in that, a strip light emitting diode constitutes described a plurality of pilot lamp more than the row by being arranged in.
3. battery charging and discharging status display circuit as claimed in claim 1, it is characterized in that, comprise in the described first sequence data group and make described a plurality of pilot lamp present repeatedly one by one the designation data of the bright state of lamp and in order to indicate the designation data of the actual electric power of described battery, the designation data of the actual electric power of described battery is in order to demonstrate corresponding power state on described a plurality of pilot lamp.
4. battery charging and discharging status display circuit as claimed in claim 1, it is characterized in that, comprise in the described second sequence data group and make described a plurality of pilot lamp present repeatedly the go out designation data of state and in order to indicate the designation data of the actual electric power of described battery of lamp one by one, the designation data of the actual electric power of described battery is in order to demonstrate corresponding power state on described a plurality of pilot lamp.
5. battery charging and discharging status display circuit as claimed in claim 1 is characterized in that, when described this battery of described control circuit is stand-by state, only sends in order to indicate the designation data of the actual electric power of described battery.
6. battery charging and discharging status display circuit as claimed in claim 1 is characterized in that, described portable type electronic product is a laptop.
7. battery charging and discharging status display circuit as claimed in claim 6 is characterized in that, described control circuit is the multifunction key disk controller of this laptop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123302 CN1219218C (en) | 1999-10-18 | 1999-10-18 | Charge or discharge state indicator of battery for protable electronic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99123302 CN1219218C (en) | 1999-10-18 | 1999-10-18 | Charge or discharge state indicator of battery for protable electronic products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1293371A CN1293371A (en) | 2001-05-02 |
| CN1219218C true CN1219218C (en) | 2005-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99123302 Expired - Fee Related CN1219218C (en) | 1999-10-18 | 1999-10-18 | Charge or discharge state indicator of battery for protable electronic products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789616A (en) * | 2010-01-08 | 2010-07-28 | 唐世福 | Electric quantity and charge dual-purpose indicating circuit of charger |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389402C (en) * | 2005-04-26 | 2008-05-21 | 佛山市顺德区顺达电脑厂有限公司 | Device and method for inspecting battery electric charge quantity of booknote computer with system light co-construction |
| CN101119032B (en) * | 2006-08-04 | 2010-12-15 | 英华达(上海)电子有限公司 | Charging gauge device and indicating method for mobile equipment |
| CN102298910A (en) * | 2010-06-28 | 2011-12-28 | 北京思旺电子技术有限公司 | LCD screen driving circuit capable of displaying electric quantity, and battery charger |
| CN101984645A (en) * | 2010-11-04 | 2011-03-09 | 华为终端有限公司 | Communication device, task prompting unit and method |
| CN102636757A (en) * | 2012-02-17 | 2012-08-15 | 深圳市富士达工业有限公司 | Battery capacity management method |
| TWI584115B (en) * | 2012-09-04 | 2017-05-21 | 精英電腦股份有限公司 | Battery life displaying device of notebook computer |
| CN102890246B (en) * | 2012-10-11 | 2015-07-29 | 江苏天鹏电源有限公司 | A kind of charge-discharge detection device of lithium battery pack |
| CN110632522B (en) * | 2019-10-09 | 2022-06-24 | 赣州得辉达科技有限公司 | Sound box electric quantity display method |
| CN111951719B (en) * | 2020-08-10 | 2023-05-23 | 昂宝电子（上海）有限公司 | Apparatus and method for LED display control in charge-discharge system |
-
1999
- 1999-10-18 CN CN 99123302 patent/CN1219218C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789616A (en) * | 2010-01-08 | 2010-07-28 | 唐世福 | Electric quantity and charge dual-purpose indicating circuit of charger |
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| Publication number | Publication date |
|---|---|
| CN1293371A (en) | 2001-05-02 |
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Granted publication date: 20050914 Termination date: 20121018 |