CN202977652U - Electric quantity indication circuit of battery - Google Patents
Electric quantity indication circuit of battery Download PDFInfo
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- CN202977652U CN202977652U CN201220695786XU CN201220695786U CN202977652U CN 202977652 U CN202977652 U CN 202977652U CN 201220695786X U CN201220695786X U CN 201220695786XU CN 201220695786 U CN201220695786 U CN 201220695786U CN 202977652 U CN202977652 U CN 202977652U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses an electric quantity indication circuit of a battery, which comprises a voltage stabilizing circuit, a first resistance, a second resistance, a third resistance, a fourth resistance, a fifth resistance, a sixth resistance, a seventh resistance, a first comparator, a second comparator, a third comparator, a fourth comparator, a first light emitting diode (LED), a second LED, a third LED, a fourth LED and a fifth LED. As the output voltage of the battery decreases continuously, the first LED, the second LED, the third LED and the fourth LED are turned off in turns, and as the battery is free of output voltage, the fifth LED is turned off. The electric quantity indication circuit of a battery disclosed by the utility model can measure the electric quantity of the battery in real time and show the electric quantity to users through the LED, thus ensuring that users know about the change of the electric quantity of the battery in real time; and the electric quantity indication circuit of a battery is formed by adopting simple circuit elements, is low in cost, and reduces the production cost of the battery.
Description
Technical field
The utility model relates to storage battery and makes the field, particularly relates to a kind of accumulator electric-quantity indicating circuit.
Background technology
In traditional battery circuit, without power indicating circuit, the user can't get information about the operating position of accumulator electric-quantity.Along with the development of electronic technology, manufacturer uses gradually the electric weight of single-chip microcomputer test storage battery and shows the user.But the accumulator electric-quantity indicating circuit cost that adopts single-chip microcomputer to make is relatively high, has increased the production cost of storage battery.
The utility model content
Based on this, being necessary provides a kind of lower-cost storage battery accumulator electric-quantity indicating circuit for the higher problem of accumulator electric-quantity indicating circuit cost that adopts single-chip microcomputer to make.
A kind of accumulator electric-quantity indicating circuit, comprise voltage stabilizing circuit, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first comparator, the second comparator, the 3rd comparator, the 4th comparator, the first light-emitting diode, the second light-emitting diode, the 3rd light-emitting diode, the 4th light-emitting diode and the 5th light-emitting diode
The input of described voltage stabilizing circuit is connected with the positive pole of storage battery, the other end that output connects respectively an end of the first resistance, the positive pole of the first light-emitting diode, the positive pole of the second light-emitting diode, the positive pole of the 3rd light-emitting diode, the positive pole of the 4th light-emitting diode and the positive pole of the 5th light-emitting diode, described the first resistance connects respectively an end of described the second resistance and the in-phase input end of described the first comparator, and the output of described the first comparator is connected with the negative pole of described the first Light-Emitting Diode; The other end of described the second resistance connects respectively an end of described the 3rd resistance and the in-phase input end of described the second comparator, and the output of described the second comparator is connected with the negative pole of described the second Light-Emitting Diode; The other end of described the 3rd resistance connects respectively an end of described the 4th resistance and the in-phase input end of described the 3rd comparator, and the output of described the 3rd comparator is connected with the negative pole of described the 3rd Light-Emitting Diode; The other end of described the 4th resistance connects respectively an end of described the 5th resistance and the in-phase input end of described the 4th comparator, and the output of described the 4th comparator is connected with the negative pole of described the 4th Light-Emitting Diode; The other end ground connection of described the 5th resistance, the minus earth of described the 5th Light-Emitting Diode; The positive pole of the one described storage battery of termination of described the 6th resistance, the other end connect respectively the reverse input end of the reverse input end of the reverse input end of an end of described the 7th resistance, described the first comparator, described the second comparator, described the 3rd comparator and the reverse input end of described the 4th comparator.
Therein in embodiment, described voltage stabilizing circuit comprises the first electric capacity, the second electric capacity and voltage stabilizing chip, one end of the input of described voltage stabilizing chip and described the first electric capacity connects respectively the positive pole of described storage battery, the other end ground connection of described the first electric capacity, the output of described voltage stabilizing chip connects respectively an end of described the second electric capacity and an end of described the first resistance, the other end ground connection of described the second electric capacity, the earth terminal ground connection of described voltage stabilizing chip.
In embodiment, also comprise the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance and the 12 resistance therein, an end of described the 8th resistance connects the output of described the first comparator, and the other end connects the negative pole of described the first Light-Emitting Diode; One end of described the 9th resistance connects the output of described the second comparator, and the other end connects the negative pole of described the second Light-Emitting Diode; One end of described the tenth resistance connects the output of described the 3rd comparator, and the other end connects the negative pole of described the 3rd Light-Emitting Diode; One end of described the 11 resistance connects the output of described the 4th comparator, and the other end connects the negative pole of described the 4th Light-Emitting Diode; One end of described the 12 resistance connects the negative pole of described the 5th Light-Emitting Diode, other end ground connection.
In embodiment, described the 6th resistance and described the 7th resistance are the adjustable resistance of resistance therein.
In embodiment, described the first resistance, the second resistance, the 3rd resistance, the 4th resistance and described the 5th resistance are the adjustable resistance of resistance therein.
Above-mentioned accumulator electric-quantity indicating circuit, can Real-time Measuring get storage battery the electric weight situation and by light-emitting diode show for, be the electric quantity change situation that the user understands storage battery in real time.And, adopt simple circuit element to build, cost is lower, has reduced the production cost of storage battery.
Description of drawings
Fig. 1 is the electrical schematic diagram of accumulator electric-quantity indicating circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, in one embodiment, a kind of accumulator electric-quantity indicating circuit comprises voltage stabilizing circuit, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the first comparator U1, the second comparator U2, the 3rd comparator U3, the 4th comparator U4, the first light-emitting diode D1, the second light-emitting diode D2, the 3rd light-emitting diode D3, the 4th light-emitting diode D4 and the 5th light-emitting diode D5.The input of voltage stabilizing circuit is connected with the positive pole of storage battery BT, output connects respectively an end of the first resistance R 1, the positive pole of the first light-emitting diode D1, the positive pole of the second light-emitting diode D2, the positive pole of the 3rd light-emitting diode D3, positive pole and the positive pole of the 5th light-emitting diode D5, the other end of the first resistance R 1 of the 4th light-emitting diode D4 and connects respectively an end of the second resistance R 2 and the in-phase input end of the first comparator U1, and the output of the first comparator U1 is connected with the negative pole of the first light-emitting diode D1; The other end of the second resistance R 2 connects respectively an end of the 3rd resistance R 3 and the in-phase input end of the second comparator U2, and the output of the second comparator U2 is connected with the negative pole of the second light-emitting diode D2; The other end of the 3rd resistance R 3 connects respectively an end of the 4th resistance R 4 and the in-phase input end of the 3rd comparator U3, and the output of the 3rd comparator U3 is connected with the negative pole of the 3rd light-emitting diode D3; The other end of the 4th resistance R 4 connects respectively an end of the 5th resistance R 5 and the in-phase input end of the 4th comparator U4, and the output of the 4th comparator U4 is connected with the negative pole of the 4th light-emitting diode D4; The other end ground connection of the 5th resistance R 5, the minus earth of the 5th light-emitting diode D5; The positive pole of one termination storage battery BT of the 6th resistance R 6, the other end connect respectively an end of the 7th resistance R 7, the reverse input end of the first comparator U1, the reverse input end of the second comparator U2, the reverse input end of the 3rd comparator U3 and the reverse input end of the 4th comparator U4.
In specific embodiment, voltage stabilizing circuit comprises the first capacitor C 1, the second capacitor C 2 and voltage stabilizing chip U, one end of the input of voltage stabilizing chip U and the first capacitor C 1 connects respectively the positive pole of storage battery BT, the other end ground connection of the first capacitor C 1, the output of voltage stabilizing chip U connects respectively an end of the second capacitor C 2 and an end of the first resistance R 1, the other end ground connection of the second capacitor C 2, the earth terminal ground connection of voltage stabilizing chip U.
In specific embodiment, the accumulator electric-quantity indicating circuit also comprises the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11 and the 12 resistance R 12, one end of the 8th resistance R 8 connects the output of the first comparator U1, and the other end connects the negative pole of the first light-emitting diode D1; One end of the 9th resistance R 9 connects the output of the second comparator U2, and the other end connects the negative pole of the second light-emitting diode D2; One end of the tenth resistance R 10 connects the output of the 3rd comparator U3, and the other end connects the negative pole of the 3rd light-emitting diode D3; One end of the 11 resistance R 11 connects the output of the 4th comparator U4, and the other end connects the negative pole of the 4th light-emitting diode D4; One end of the 12 resistance R 12 connects the negative pole of the 5th light-emitting diode D5, other end ground connection.The 6th resistance R 6 and the 7th resistance R 7 are the adjustable resistance of resistance.The first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and the 5th resistance R 5 are the adjustable resistance of resistance.
the output voltage of storage battery BT is through the constant voltage of output after voltage stabilizing circuit, this constant voltage is successively through the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and the 5th resistance R 5 step-downs, the in-phase input end of input the first comparator U1 after through the first resistance R 1 step-down, again through inputting the in-phase input end of the second comparator U2 after the second resistance R 2 decompressions, the in-phase input end of the U3 of input the 3rd comparator after through the 3rd resistance R 3 step-downs, the in-phase input end of input the 4th comparator U4 after through the 4th resistance R 4 step-downs, therefore, the in-phase input end of the first comparator U1, the in-phase input end of the second comparator U2, the voltage of the in-phase input end of the in-phase input end of the 3rd comparator U3 and the 4th comparator U4 reduces successively, the concrete voltage swing of the in-phase input end of above-mentioned four comparators can be by adjusting the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the size of the 4th resistance R 4 and the 5th resistance R 5 realizes.when the output voltage of storage battery BT is larger, input the inverting input of the first comparator U1, the inverting input of the second comparator U2, the voltage of the inverting input of the 3rd comparator U3 and the voltage of the inverting input of the 4th comparator U4 is all greater than the voltage of corresponding in-phase input end, the output of the first comparator U1, the output of the second comparator U2, the equal output low level of the output of the output of the 3rd comparator U3 and the 4th comparator U4, the first light-emitting diode D1, the second light-emitting diode D2, the 3rd light-emitting diode D3, the 4th light-emitting diode D4 and the 5th light-emitting diode D5 all are lit, in storage battery BT consumption process, the output voltage of storage battery BT reduces gradually, at the voltage that is decreased to input the first comparator U1 inverting input during less than the voltage of the in-phase input end of the first comparator U1, the output output high level of the first comparator U1, the first light-emitting diode turn-offs, along with constantly reducing of the output voltage of storage battery BT, the second light-emitting diode D2, the 3rd light-emitting diode D3 and the 4th light-emitting diode D4 are turn-offed successively, when storage battery BT Non voltage output, the 5th light-emitting diode D5 is turned off.
Above-mentioned accumulator electric-quantity indicating circuit, can Real-time Measuring get storage battery BT the electric weight situation and by light-emitting diode show for, be the electric quantity change situation that the user understands storage battery BT in real time.And, adopt simple circuit element to build, cost is lower, has reduced the production cost of storage battery.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (5)
1. accumulator electric-quantity indicating circuit, it is characterized in that, comprise voltage stabilizing circuit, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first comparator, the second comparator, the 3rd comparator, the 4th comparator, the first light-emitting diode, the second light-emitting diode, the 3rd light-emitting diode, the 4th light-emitting diode and the 5th light-emitting diode
The input of described voltage stabilizing circuit is connected with the positive pole of storage battery, the other end that output connects respectively an end of the first resistance, the positive pole of the first light-emitting diode, the positive pole of the second light-emitting diode, the positive pole of the 3rd light-emitting diode, the positive pole of the 4th light-emitting diode and the positive pole of the 5th light-emitting diode, described the first resistance connects respectively an end of described the second resistance and the in-phase input end of described the first comparator, and the output of described the first comparator is connected with the negative pole of described the first Light-Emitting Diode; The other end of described the second resistance connects respectively an end of described the 3rd resistance and the in-phase input end of described the second comparator, and the output of described the second comparator is connected with the negative pole of described the second Light-Emitting Diode; The other end of described the 3rd resistance connects respectively an end of described the 4th resistance and the in-phase input end of described the 3rd comparator, and the output of described the 3rd comparator is connected with the negative pole of described the 3rd Light-Emitting Diode; The other end of described the 4th resistance connects respectively an end of described the 5th resistance and the in-phase input end of described the 4th comparator, and the output of described the 4th comparator is connected with the negative pole of described the 4th Light-Emitting Diode; The other end ground connection of described the 5th resistance, the minus earth of described the 5th Light-Emitting Diode; The positive pole of the one described storage battery of termination of described the 6th resistance, the other end connect respectively the reverse input end of the reverse input end of the reverse input end of an end of described the 7th resistance, described the first comparator, described the second comparator, described the 3rd comparator and the reverse input end of described the 4th comparator.
2. accumulator electric-quantity indicating circuit according to claim 1, it is characterized in that, described voltage stabilizing circuit comprises the first electric capacity, the second electric capacity and voltage stabilizing chip, one end of the input of described voltage stabilizing chip and described the first electric capacity connects respectively the positive pole of described storage battery, the other end ground connection of described the first electric capacity, the output of described voltage stabilizing chip connects respectively an end of described the second electric capacity and an end of described the first resistance, the other end ground connection of described the second electric capacity, the earth terminal ground connection of described voltage stabilizing chip.
3. accumulator electric-quantity indicating circuit according to claim 1, it is characterized in that, also comprise the 8th resistance, the 9th resistance, the tenth resistance, the 11 resistance and the 12 resistance, one end of described the 8th resistance connects the output of described the first comparator, and the other end connects the negative pole of described the first Light-Emitting Diode; One end of described the 9th resistance connects the output of described the second comparator, and the other end connects the negative pole of described the second Light-Emitting Diode; One end of described the tenth resistance connects the output of described the 3rd comparator, and the other end connects the negative pole of described the 3rd Light-Emitting Diode; One end of described the 11 resistance connects the output of described the 4th comparator, and the other end connects the negative pole of described the 4th Light-Emitting Diode; One end of described the 12 resistance connects the negative pole of described the 5th Light-Emitting Diode, other end ground connection.
4. accumulator electric-quantity indicating circuit according to claim 1, is characterized in that, described the 6th resistance and described the 7th resistance are the adjustable resistance of resistance.
5. accumulator electric-quantity indicating circuit according to claim 4, is characterized in that, described the first resistance, the second resistance, the 3rd resistance, the 4th resistance and described the 5th resistance are the adjustable resistance of resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220695786XU CN202977652U (en) | 2012-12-14 | 2012-12-14 | Electric quantity indication circuit of battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220695786XU CN202977652U (en) | 2012-12-14 | 2012-12-14 | Electric quantity indication circuit of battery |
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| CN202977652U true CN202977652U (en) | 2013-06-05 |
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| CN201220695786XU Expired - Fee Related CN202977652U (en) | 2012-12-14 | 2012-12-14 | Electric quantity indication circuit of battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066646A (en) * | 2012-12-14 | 2013-04-24 | 浙江明烁电子科技有限公司 | Electric quantity indicating circuit of storage battery |
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- 2012-12-14 CN CN201220695786XU patent/CN202977652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066646A (en) * | 2012-12-14 | 2013-04-24 | 浙江明烁电子科技有限公司 | Electric quantity indicating circuit of storage battery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151214 |
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| EXPY | Termination of patent right or utility model |