CN206557356U - A kind of super low-power consumption battery voltage detection circuit - Google Patents
A kind of super low-power consumption battery voltage detection circuit Download PDFInfo
- Publication number
- CN206557356U CN206557356U CN201720251643.2U CN201720251643U CN206557356U CN 206557356 U CN206557356 U CN 206557356U CN 201720251643 U CN201720251643 U CN 201720251643U CN 206557356 U CN206557356 U CN 206557356U
- Authority
- CN
- China
- Prior art keywords
- triode
- semiconductor
- oxide
- metal
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Secondary Cells (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model is related to a kind of super low-power consumption battery voltage detection circuit, including：MCU chip, resistance R1, R2, R3, R4, R5, triode Q1, metal-oxide-semiconductor Q2, electric capacity C1；7th pin of the MCU chip is connected by resistance R1 with triode Q1 base stage;Triode Q1 colelctor electrode is connected by resistance R2 with metal-oxide-semiconductor Q2 grid；Triode Q1 colelctor electrode is connected by resistance R3 with battery.Detection of the utility model using the output level control detection circuit of single-chip microcomputer to cell voltage, when needing detection cell voltage, single-chip microcomputer output high level, turn-on transistor and metal-oxide-semiconductor, connect battery voltage detection circuit, when that need not detect, single-chip microcomputer is grounded, low level is exported, triode and metal-oxide-semiconductor are closed, so as to close potential-divider network, power consumption is set to be reduced to 0, resting period and the service life of battery product can effectively be extended, circuit structure of the present utility model is simple, easy to use.
Description
Technical field
The utility model belongs to battery voltage detection technical field, more particularly to a kind of super low-power consumption battery voltage detection electricity
Road.
Background technology
Regenerated along with the continuous renewal of portable power source product, requirement to product also more and more higher, from initial simple
Continuation of the journey, till now multi-functional is used, quick charge more till now etc..It is well known that quickly charging battery is to mobile electricity
The security test of source battery itself is greatly increased, accordingly, it would be desirable to do more designs in terms of cell safety is ensured, comparing has
The method of effect is the monitoring to voltage, is exactly continual voltage monitoring, notes abnormalities and timely handles.
Due to detecting the presence of circuit, the power consumption of circuit is increased, cause the quick outer of the portable power source energy content of battery itself
Overflow, reduce effective usability of portable power source, make portable power source power shortage, effective utilization declines, and more serious meeting causes movement
Power-supply battery causes other safety problems due to overdischarge.
Therefore, prior art needs to improve.
The content of the invention
In order to solve the above mentioned problem of prior art presence, the utility model discloses a kind of inspection of super low-power consumption cell voltage
Slowdown monitoring circuit, including：
MCU chip, resistance R1, R2, R3, R4, R5, triode Q1, metal-oxide-semiconductor Q2, electric capacity C1；
7th pin of the MCU chip is connected by resistance R1 with triode Q1 base stage, and when needing, detection battery is electric
During pressure, during the 7th pin output high level of MCU chip, triode Q1 conductings, when cell voltage need not be detected, MCU core
The 7th pin ground connection of piece, exports low level, triode Q1 cut-offs；
Triode Q1 colelctor electrode is connected by resistance R2 with metal-oxide-semiconductor Q2 grid, when triode Q1 is turned on, metal-oxide-semiconductor
Q2 grid is pulled down, metal-oxide-semiconductor Q2 conductings, and when triode Q1 ends, metal-oxide-semiconductor Q2 grid is pulled up, and metal-oxide-semiconductor Q2 is closed；
Triode Q1 colelctor electrode is connected by resistance R3 with battery；
Described resistance R4, R5 constitute potential-divider network, when triode Q1 conductings, metal-oxide-semiconductor Q2 conductings, the MCU chip
5th pin passes through the voltage of resistance R4, R5 sampling battery group, when triode Q1 cut-offs, metal-oxide-semiconductor Q2 are closed, the partial pressure net
The connection of network R4, R5 and battery disconnects, and the power consumption of voltage detecting circuit is 0；
The electric capacity C1 is mu balanced circuit, the voltage for stable cell end.
In another embodiment based on above-mentioned super low-power consumption battery voltage detection circuit, the emitter stage of the triode Q1
Ground connection, it is ensured that when the 7th pin output level of MCU chip, triode Q1 conductings.
In another embodiment based on above-mentioned super low-power consumption battery voltage detection circuit, the resistance R3 is connected in parallel on MOS
The grid and source electrode of pipe.
Compared with prior art, the utility model has advantages below：
Detection of the utility model using the output level control detection circuit of single-chip microcomputer to cell voltage, is needing detection
During cell voltage, single-chip microcomputer exports high level, turn-on transistor and metal-oxide-semiconductor, connects battery voltage detection circuit, need not examine
During survey, single-chip microcomputer ground connection exports low level, closes triode and metal-oxide-semiconductor, so as to close potential-divider network, power consumption is reduced to 0,
Resting period and the service life of battery product can effectively be extended, circuit structure of the present utility model is simple, easy to use.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used in description of the prior art does one and simply introduced.
Fig. 1 is a kind of circuit diagram of one embodiment of super low-power consumption battery voltage detection circuit of the present utility model.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is only a part of embodiment of the utility model, rather than whole embodiments.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
Fig. 1 is a kind of structural representation of super low-power consumption battery voltage detection circuit of the present utility model, as shown in figure 1,
The super low-power consumption battery voltage detection circuit includes：
MCU chip, resistance R1, R2, R3, R4, R5, triode Q1, metal-oxide-semiconductor Q2, electric capacity C1；
7th pin of the MCU chip is connected by resistance R1 with triode Q1 base stage, and when needing, detection battery is electric
During pressure, during the 7th pin output high level of MCU chip, triode Q1 conductings, when cell voltage need not be detected, MCU core
The 7th pin ground connection of piece, exports low level, triode Q1 cut-offs；
The grounded emitter of the triode Q1, it is ensured that when the 7th pin output level of MCU chip, triode Q1 is led
It is logical；
Triode Q1 colelctor electrode is connected by resistance R2 with metal-oxide-semiconductor Q2 grid, when triode Q1 is turned on, metal-oxide-semiconductor
Q2 grid is pulled down, metal-oxide-semiconductor Q2 conductings, and when triode Q1 ends, metal-oxide-semiconductor Q2 grid is pulled up, and metal-oxide-semiconductor Q2 is closed；
Triode Q1 colelctor electrode is connected by resistance R3 with battery；
The resistance R3 is connected in parallel on the grid and source electrode of metal-oxide-semiconductor；
Described resistance R4, R5 constitute potential-divider network, when triode Q1 conductings, metal-oxide-semiconductor Q2 conductings, the MCU chip
5th pin passes through the voltage of resistance R4, R5 sampling battery group, when triode Q1 cut-offs, metal-oxide-semiconductor Q2 are closed, the partial pressure net
The connection of network R4, R5 and battery disconnects, and the power consumption of voltage detecting circuit is 0；
The electric capacity C1 is mu balanced circuit, the voltage for stable cell end.
A kind of super low-power consumption battery voltage detection circuit provided by the utility model is described in detail above, this
Apply specific case in text to be set forth principle of the present utility model and embodiment, the explanation of above example is
It is used to help understand method of the present utility model and its core concept；Simultaneously for those of ordinary skill in the art, according to this
The thought of utility model, will change in specific embodiments and applications, in summary, this specification content
It should not be construed as to limitation of the present utility model.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc.,
It should be included within protection domain of the present utility model.
Claims (3)
1. a kind of super low-power consumption battery voltage detection circuit, it is characterised in that including：
MCU chip, resistance R1, R2, R3, R4, R5, triode Q1, metal-oxide-semiconductor Q2, electric capacity C1；
7th pin of the MCU chip is connected by resistance R1 with triode Q1 base stage, when needing detection cell voltage,
During the 7th pin output high level of MCU chip, triode Q1 conductings, when cell voltage need not be detected, the of MCU chip
Seven pins are grounded, and export low level, triode Q1 cut-offs；
Triode Q1 colelctor electrode is connected by resistance R2 with metal-oxide-semiconductor Q2 grid, when triode Q1 is turned on, metal-oxide-semiconductor Q2's
Grid is pulled down, metal-oxide-semiconductor Q2 conductings, and when triode Q1 ends, metal-oxide-semiconductor Q2 grid is pulled up, and metal-oxide-semiconductor Q2 is closed；
Triode Q1 colelctor electrode is connected by resistance R3 with battery；
Described resistance R4, R5 constitute potential-divider network, when triode Q1 conductings, metal-oxide-semiconductor Q2 conductings, and the 5th of the MCU chip the
Pin passes through the voltage of resistance R4, R5 sampling battery group, when triode Q1 cut-offs, metal-oxide-semiconductor Q2 are closed, the potential-divider network
The connection of R4, R5 and battery disconnects, and the power consumption of voltage detecting circuit is 0；
The electric capacity C1 is mu balanced circuit, the voltage for stable cell end.
2. super low-power consumption battery voltage detection circuit according to claim 1, it is characterised in that the hair of the triode Q1
Emitter grounding, it is ensured that when the 7th pin output level of MCU chip, triode Q1 conductings.
3. super low-power consumption battery voltage detection circuit according to claim 1, it is characterised in that the resistance R3 is connected in parallel on
The grid and source electrode of metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251643.2U CN206557356U (en) | 2017-03-15 | 2017-03-15 | A kind of super low-power consumption battery voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251643.2U CN206557356U (en) | 2017-03-15 | 2017-03-15 | A kind of super low-power consumption battery voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206557356U true CN206557356U (en) | 2017-10-13 |
Family
ID=60364219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720251643.2U Expired - Fee Related CN206557356U (en) | 2017-03-15 | 2017-03-15 | A kind of super low-power consumption battery voltage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206557356U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107593085A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and balance of voltage process circuit |
| CN107612093A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and control charging procedure circuit |
| CN107612092A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | The circuit that gardens machine lithium battery group charging is superimposed with four groups of protection chips |
| CN107593084A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and single chip machine controlling circuit |
| CN107612094A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and voltage conversion circuit |
| CN107593082A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and control pwm pulse circuit |
| CN107733019A (en) * | 2017-10-15 | 2018-02-23 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and battery status display circuit |
| CN107750577A (en) * | 2017-09-28 | 2018-03-06 | 宁波大叶园林设备股份有限公司 | Has the gardens machine of lithium battery status display unit circuit |
| CN107785959A (en) * | 2018-01-05 | 2018-03-09 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and moving average filter method circuit |
| CN107787665A (en) * | 2017-10-15 | 2018-03-13 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and battery voltage detection unit |
| CN108933520A (en) * | 2018-07-19 | 2018-12-04 | 启攀微电子（上海）有限公司 | A kind of super low-power consumption DCDC Switching Power Supply |
| CN109188064A (en) * | 2018-09-26 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of electric voltage observation circuit and voltage monitor |
| CN109673240A (en) * | 2019-01-30 | 2019-04-26 | 宁波大叶园林设备股份有限公司 | A kind of intelligent grass-removing |
| CN110320058A (en) * | 2019-08-12 | 2019-10-11 | 成都西交智众科技有限公司 | A kind of portable vehicle running stability analyzer |
| CN110333453A (en) * | 2019-05-23 | 2019-10-15 | 浙江合众新能源汽车有限公司 | A kind of isolation high pressure sampling control circuit and its control method |
| WO2019214341A1 (en) * | 2018-05-08 | 2019-11-14 | 精进电动科技股份有限公司 | Battery voltage collection circuit and automobile |
| CN114137424A (en) * | 2021-11-29 | 2022-03-04 | 深圳市太美亚电子科技有限公司 | Battery power detection circuit |
-
2017
- 2017-03-15 CN CN201720251643.2U patent/CN206557356U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107750577A (en) * | 2017-09-28 | 2018-03-06 | 宁波大叶园林设备股份有限公司 | Has the gardens machine of lithium battery status display unit circuit |
| CN107787665A (en) * | 2017-10-15 | 2018-03-13 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and battery voltage detection unit |
| CN107612093A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and control charging procedure circuit |
| CN107612092A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | The circuit that gardens machine lithium battery group charging is superimposed with four groups of protection chips |
| CN107593084A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and single chip machine controlling circuit |
| CN107612094A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and voltage conversion circuit |
| CN107593082A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and control pwm pulse circuit |
| CN107733019A (en) * | 2017-10-15 | 2018-02-23 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and battery status display circuit |
| CN107593085A (en) * | 2017-10-15 | 2018-01-19 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and balance of voltage process circuit |
| CN107785959A (en) * | 2018-01-05 | 2018-03-09 | 宁波大叶园林设备股份有限公司 | Gardens machine lithium cell charging program and moving average filter method circuit |
| WO2019214341A1 (en) * | 2018-05-08 | 2019-11-14 | 精进电动科技股份有限公司 | Battery voltage collection circuit and automobile |
| CN108933520A (en) * | 2018-07-19 | 2018-12-04 | 启攀微电子（上海）有限公司 | A kind of super low-power consumption DCDC Switching Power Supply |
| CN109188064A (en) * | 2018-09-26 | 2019-01-11 | 郑州云海信息技术有限公司 | A kind of electric voltage observation circuit and voltage monitor |
| CN109673240A (en) * | 2019-01-30 | 2019-04-26 | 宁波大叶园林设备股份有限公司 | A kind of intelligent grass-removing |
| CN109673240B (en) * | 2019-01-30 | 2024-05-24 | 宁波大叶园林设备股份有限公司 | Intelligent mower |
| CN110333453A (en) * | 2019-05-23 | 2019-10-15 | 浙江合众新能源汽车有限公司 | A kind of isolation high pressure sampling control circuit and its control method |
| CN110320058A (en) * | 2019-08-12 | 2019-10-11 | 成都西交智众科技有限公司 | A kind of portable vehicle running stability analyzer |
| CN114137424A (en) * | 2021-11-29 | 2022-03-04 | 深圳市太美亚电子科技有限公司 | Battery power detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206557356U (en) | A kind of super low-power consumption battery voltage detection circuit | |
| CN205050134U (en) | Portable power source TYPE -C interface management circuit | |
| CN102593898A (en) | Lithium cell management system | |
| CN202513609U (en) | Lithium cell management system | |
| CN205583752U (en) | Circuit capable of zero power consumption in a standby state | |
| CN204190446U (en) | A kind of accumulator routing inspection circuit | |
| CN204967367U (en) | Notebook computer battery protection circuit | |
| CN207067361U (en) | A kind of low-power consumption battery voltage supervisory circuit | |
| CN207664703U (en) | A kind of standby power alarm power supply circuit | |
| CN206804840U (en) | Battery data logging device | |
| CN206920512U (en) | A kind of power failure detection circuit with low power consumption | |
| CN205986319U (en) | Supply circuit is used at little consumption data transmission terminal | |
| CN105866533A (en) | Multifunctional single-phase multi-rate electricity meter | |
| CN204329112U (en) | The solar extraction lampblack absorber that a kind of power supply automatically switches | |
| CN107122065A (en) | A kind of rechargeable cell | |
| CN203554005U (en) | A zero-power-consumption lithium battery management system capable of being powered up automatically | |
| CN206180627U (en) | Battery charging/ discharging management device | |
| CN205911822U (en) | Gas table or for water gauge dual power supply device | |
| CN206894270U (en) | Battery management system | |
| CN206908378U (en) | One kind power-off automatic switchover battery circuit | |
| CN206432349U (en) | Batteries in parallel connection bag intelligent switching system | |
| CN206533173U (en) | A kind of group string data battery based on STC89C52 microprocessors concentrates balancer | |
| CN202601799U (en) | Protection circuit for preventing battery leakage of intelligent gas meter | |
| CN206908362U (en) | Low-power consumption lithium electricity charging circuit and on-off circuit unit | |
| CN204290396U (en) | Support the portable 4G wireless router of function of solar charging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20190315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |