CN104181366A - Battery capacity display circuit - Google Patents
Battery capacity display circuit Download PDFInfo
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- CN104181366A CN104181366A CN201310200375.8A CN201310200375A CN104181366A CN 104181366 A CN104181366 A CN 104181366A CN 201310200375 A CN201310200375 A CN 201310200375A CN 104181366 A CN104181366 A CN 104181366A
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- electric quantity
- battery electric
- quantity display
- display circuit
- battery
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a battery capacity display circuit comprising a plurality of sub battery capacity display circuits. The plurality of sub battery capacity display circuits are connected in parallel and then are connected with two ends of a battery. Each sub battery capacity display circuit includes an operational amplifier, a light-emitting diode, a first divider resistor and a second divider resistor; the first divider resistor and the second divider resistor are connected in series; and the series circuit of the operational amplifier and the light-emitting diode is connected in parallel with the second divider resistor. With the battery capacity display circuit, a problem that inconvenience is caused in work due to exhausting of the power or the battery is damaged because of untimely battery maintenance can be solved; and the work efficiency is improved and the cost is lowered.
Description
Technical field
The present invention relates to a kind of battery management circuit, relate in particular to a kind of battery electric quantity display circuit.
Background technology
A kind of LCD battery electric quantity display circuit of documents (Chinese Patent Application No. 201220051674.0), a kind of LCD battery electric quantity display circuit is disclosed, comprise battery core, also comprise potential-divider network (C), main control module (B) and the LCD driver module being electrically connected successively with described battery core and be arranged on the LCD display on described battery case.
Foregoing circuit device is many, and circuit is more complicated, and cost is higher.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, a kind of battery electric quantity display circuit is provided.Can solve because electric weight is finished to work and make troubles, or the maintenance to battery in time and damage the problem of battery, improve work efficiency and reduced costs.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of battery electric quantity display circuit, comprise some sub-battery electric quantity display circuits, after in parallel between described some sub-battery electric quantity display circuits, connect battery two ends, every sub-battery electric quantity display circuit comprises operational amplifier, light emitting diode, the first divider resistance and the second divider resistance, wherein the first divider resistance and the series connection of the second divider resistance, operational amplifier and light emitting diode series circuit are in parallel with the second divider resistance.
Further, described sub-battery electric quantity display circuit also comprises stabilivolt, the 3rd resistance; Operational amplifier the 1st pin is connected with the 3rd resistance one end and stabilivolt negative pole respectively; The 3rd resistance other end is connected with anode and first divider resistance one end respectively; Stabilivolt positive pole is connected with second divider resistance one end, light emitting diode negative pole and battery cathode respectively; Operational amplifier the 2nd pin is connected with the first divider resistance other end and the second divider resistance other end respectively; Operational amplifier the 3rd pin is connected with light emitting diode is anodal.
Further, described sub-battery electric quantity display circuit also comprises the 4th resistance, and described the 4th resistance is connected with operational amplifier, light emitting diode.
Further, also comprise relay K, K connects with battery, sub-battery electric quantity display circuit.
Further, described battery electric quantity display circuit comprises n sub-battery electric quantity display circuit, the first divider resistance in k sub-battery electric quantity display circuit wherein and the resistance value of the second divider resistance are set, the voltage of the k/n of the magnitude of voltage that the voltage that makes to get on the second divider resistance is battery on k sub-battery electric quantity display circuit.
Further, described battery electric quantity display circuit comprises 4 sub-battery electric quantity display circuits.
Further, in the time having i lumination of light emitting diode in described battery electric quantity display circuit, represent that current battery electric quantity is i/n.
Further, described operational amplifier model is LM358 or LM339.
The embodiment of the present invention can solve because electric weight is finished to work and make troubles, or the maintenance to battery in time and damage the problem of battery, has improved work efficiency and has reduced costs.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 be a kind of battery electric quantity display circuit of the present invention schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, a kind of battery electric quantity display circuit, comprise some sub-battery electric quantity display circuits, after in parallel between described some sub-battery electric quantity display circuits, connect battery two ends, every sub-battery electric quantity display circuit comprises operational amplifier, light emitting diode, the first divider resistance and the second divider resistance, wherein the first divider resistance and the series connection of the second divider resistance, operational amplifier and light emitting diode series circuit are in parallel with the second divider resistance.
Described sub-battery electric quantity display circuit also comprises stabilivolt, the 3rd resistance; Operational amplifier the 1st pin is connected with the 3rd resistance one end and stabilivolt negative pole respectively; The 3rd resistance other end is connected with anode and first divider resistance one end respectively; Stabilivolt positive pole is connected with second divider resistance one end, light emitting diode negative pole and battery cathode respectively; Operational amplifier the 2nd pin is connected with the first divider resistance other end and the second divider resistance other end respectively; Operational amplifier the 3rd pin is connected with light emitting diode is anodal.
Described sub-battery electric quantity display circuit also comprises the 4th resistance, and described the 4th resistance is connected with operational amplifier, light emitting diode.
Also comprise relay K, K connects with battery, sub-battery electric quantity display circuit.
Described battery electric quantity display circuit comprises n sub-battery electric quantity display circuit, the first divider resistance in k sub-battery electric quantity display circuit wherein and the resistance value of the second divider resistance are set, the voltage of the k/n of the magnitude of voltage that the voltage that makes to get on the second divider resistance is battery on k sub-battery electric quantity display circuit.
In the time having i lumination of light emitting diode in described battery electric quantity display circuit, represent that current battery electric quantity is i/n.
For example, as shown in Figure 1, battery electric quantity display circuit comprises 4 sub-battery electric quantity display circuits, choose the resistance value of R1, R5, making the voltage got on R5 is just 25% voltage of the electric weight of battery, when now voltage is greater than the base voltage of stabilivolt Z, LED1 is bright, illustrates that battery electric quantity only has 25% when LED1 is bright; Choose R2, R6 resistance value, making the voltage got on R6 is just 50% voltage of the electric weight of battery, LED1, LED2 are bright, LED1, LED2 illustrate when bright that battery electric quantity only has 50%; Choose R3, R7 resistance value, making the voltage got on R7 is just 75% voltage of the electric weight of battery, LED1, LED2, LED3 are bright, LED1, LED2, LED3 illustrate when bright that battery electric quantity only has 75%; Choose R4, R8 resistance value, making the voltage got on R8 is just 100% voltage of the electric weight of battery, LED1, LED2, LED3, LED4 are bright, LED1, LED2, LED3, LED4 illustrate when bright that battery electric quantity only has 100%.
Described operational amplifier model is LM358 or LM339.
The embodiment of the present invention can solve because electric weight is finished to work and make troubles, or the maintenance to battery in time and damage the problem of battery, has improved work efficiency and has reduced costs.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, can carry out the hardware that instruction is relevant by computer program to complete, described program can be stored in a computer read/write memory medium, this program, in the time carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (8)
1. a battery electric quantity display circuit, it is characterized in that, comprise some sub-battery electric quantity display circuits, after in parallel between described some sub-battery electric quantity display circuits, connect battery two ends, every sub-battery electric quantity display circuit comprises operational amplifier, light emitting diode, the first divider resistance and the second divider resistance, wherein the first divider resistance and the series connection of the second divider resistance, operational amplifier and light emitting diode series circuit are in parallel with the second divider resistance.
2. circuit according to claim 1, is characterized in that, described sub-battery electric quantity display circuit also comprises stabilivolt, the 3rd resistance; Operational amplifier the 1st pin is connected with the 3rd resistance one end and stabilivolt negative pole respectively; The 3rd resistance other end is connected with anode and first divider resistance one end respectively; Stabilivolt positive pole is connected with second divider resistance one end, light emitting diode negative pole and battery cathode respectively; Operational amplifier the 2nd pin is connected with the first divider resistance other end and the second divider resistance other end respectively; Operational amplifier the 3rd pin is connected with light emitting diode is anodal.
3. circuit according to claim 1, is characterized in that, described sub-battery electric quantity display circuit also comprises the 4th resistance, and described the 4th resistance is connected with operational amplifier, light emitting diode.
4. circuit according to claim 1, is characterized in that, also comprises relay K, and K connects with battery, sub-battery electric quantity display circuit.
5. circuit according to claim 1, it is characterized in that, described battery electric quantity display circuit comprises n sub-battery electric quantity display circuit, the first divider resistance in k sub-battery electric quantity display circuit wherein and the resistance value of the second divider resistance are set, the voltage of the k/n of the magnitude of voltage that the voltage that makes to get on the second divider resistance is battery on k sub-battery electric quantity display circuit.
6. circuit according to claim 5, is characterized in that, described battery electric quantity display circuit comprises 4 sub-battery electric quantity display circuits.
7. circuit according to claim 3, is characterized in that, in the time having i lumination of light emitting diode in described battery electric quantity display circuit, represents that current battery electric quantity is i/n.
8. circuit according to claim 1, is characterized in that, described operational amplifier model is LM358 or LM339.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310200375.8A CN104181366A (en) | 2013-05-27 | 2013-05-27 | Battery capacity display circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310200375.8A CN104181366A (en) | 2013-05-27 | 2013-05-27 | Battery capacity display circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104181366A true CN104181366A (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310200375.8A Pending CN104181366A (en) | 2013-05-27 | 2013-05-27 | Battery capacity display circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290670A (en) * | 2016-04-01 | 2017-10-24 | 海洋王（东莞）照明科技有限公司 | Electric quantity display circuit and its control method, light fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243719A (en) * | 1996-03-12 | 1997-09-19 | Fujitsu General Ltd | Method of displaying residual capacity of battery, and device therefor |
| KR20090089686A (en) * | 2008-02-19 | 2009-08-24 | 장세일 | Portable checker for battery life |
| CN101718844A (en) * | 2009-12-01 | 2010-06-02 | 漳州市华威电源科技有限公司 | Battery capacity testing device |
| CN102375124A (en) * | 2010-08-24 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Battery capacity test device |
| CN102759717A (en) * | 2011-04-28 | 2012-10-31 | 海洋王照明科技股份有限公司 | Lamp and discharge extinction alarming circuit thereof |
-
2013
- 2013-05-27 CN CN201310200375.8A patent/CN104181366A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243719A (en) * | 1996-03-12 | 1997-09-19 | Fujitsu General Ltd | Method of displaying residual capacity of battery, and device therefor |
| KR20090089686A (en) * | 2008-02-19 | 2009-08-24 | 장세일 | Portable checker for battery life |
| CN101718844A (en) * | 2009-12-01 | 2010-06-02 | 漳州市华威电源科技有限公司 | Battery capacity testing device |
| CN102375124A (en) * | 2010-08-24 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Battery capacity test device |
| CN102759717A (en) * | 2011-04-28 | 2012-10-31 | 海洋王照明科技股份有限公司 | Lamp and discharge extinction alarming circuit thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290670A (en) * | 2016-04-01 | 2017-10-24 | 海洋王（东莞）照明科技有限公司 | Electric quantity display circuit and its control method, light fixture |
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Application publication date: 20141203 |