CN107834692A - A kind of battery automatically engages circuit - Google Patents
A kind of battery automatically engages circuit Download PDFInfo
- Publication number
- CN107834692A CN107834692A CN201711014126.4A CN201711014126A CN107834692A CN 107834692 A CN107834692 A CN 107834692A CN 201711014126 A CN201711014126 A CN 201711014126A CN 107834692 A CN107834692 A CN 107834692A
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- CN
- China
- Prior art keywords
- resistance
- triode
- battery
- resistor
- circuit
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention discloses a kind of battery to automatically engage circuit, and the circuit that automatically engages includes comparator, metal-oxide-semiconductor, the first triode, the second triode, electric capacity, the first diode, the second diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance and the 9th resistance.Circuit is automatically engaged from output power taking in the present invention, and when cell voltage is less than voltage is automatically engaged, when battery is put into, cell voltage is sent to output by the time for having 100ms, is at this moment detected circuit work, is judged whether cell voltage possesses input condition.If not possessing, disconnection automatically engages switch, detects circuit dead electricity, and battery exits.For cell voltage less than when automatically engaging, the circuit that the present invention mentions will not be always from battery electricity-taking.
Description
Technical field
The invention belongs to power technique fields, and in particular to a kind of battery automatically engages circuit.
Background technology
At present, the occasion of stand-by power supply is used as by the use of battery at some.Power supply mode is as follows：Power supply powering load is given simultaneously
Battery charges；When power input out of power, battery automatically engages powering load.Whether this has detection cell voltage with regard in need
Possesses the circuit of input condition.Currently, most of scheme is all the power supply for detecting circuit from battery electricity-taking, when battery exits
During powering load, this part detection circuit hangs over power taking on battery always, certainly will put battery thanks to, cause cell damage.
The content of the invention
In order to solve the deficiencies in the prior art, can solve the problem that the invention provides one kind above-mentioned due to not possessing battery
Input condition and caused by cell damage, circuit is automatically engaged from output power taking in the present invention, when cell voltage is less than automatic
When putting into voltage, when battery is put into, cell voltage is sent to output by the time for having 100ms, is at this moment detected circuit work, is judged
Whether cell voltage possesses input condition.If not possessing, disconnection automatically engages switch, detects circuit dead electricity, and battery exits.Battery
For voltage less than when automatically engaging, the circuit that this patent is mentioned will not be always from battery electricity-taking.
The technique effect of the invention to be reached is realized by following scheme：
The battery provided in the present invention automatically engages circuit, including comparator, metal-oxide-semiconductor, the first triode, the second triode, electricity
Appearance, the first diode, the second diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th electricity
Resistance, the 7th resistance, the 8th resistance and the 9th resistance；
Comparator negative pole end is followed by defeated in power supply as reference voltage, positive pole and the 6th resistor coupled in parallel, positive pole the 4th resistance of series connection
Go out end, and the 5th resistance is accessed between the 4th resistance, be then grounded；First diode and the second diodes in parallel, the one or two
Pole pipe positive pole is connected with comparator, and negative pole is connected with the second triode b ends, the second diode cathode and the second triode b ends phase
Even, positive pole is connected with the first triode c ends；Second diode b ends and e ends both sides the 7th resistance in parallel, c ends are then connected the 8th electricity
Resistance is extremely connected with metal-oxide-semiconductor s, and metal-oxide-semiconductor is connected on power output end, metal-oxide-semiconductor s poles nineth resistance in parallel with power output end；The
One triode e ends are connected with the second triode e ends, and the first triode b ends are sequentially connected in series second resistance, first resistor is followed by electricity
Source output terminal, first resistor side and the first triode c ends both sides parallel connection 3rd resistor；Accessed between first resistor and second resistance
Electric capacity side, electric capacity opposite side are connected and are grounded with the first triode e ends and the second triode e ends.
Further, setting automatically engages voltage, and when cell voltage is higher than setting when automatically engaging voltage, battery can be certainly
Dynamic input is load supplying；When cell voltage is less than voltage is automatically engaged, it is load supplying that battery, which stops,.
Further, the Vbe of first triode and the second triode is set to 0.7V.
The present invention has advantages below：The circuit that automatically engages in the present invention can apply to the lead of battery and load altogether
The management of charging and discharging of sour battery or colloid maintenance-free battery or super capacitor, realization automatically engages, and battery exits load supplying
When, it detects the electric energy that circuit does not consume battery.
Brief description of the drawings
Fig. 1 is the switch schematic diagram of control battery input, wherein battery and load supplying；
Fig. 2 is the switch schematic diagram of control battery input, and wherein battery and load is not powered；
Fig. 3 is the structural representation that battery automatically engages circuit in the present invention.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
The battery provided in the present invention automatically engages circuit as shown in Figure 3, including comparator U1, metal-oxide-semiconductor Q3, the one or three
Pole pipe Q1, the second triode Q2, electric capacity C1, the first diode D1, the second diode D2, first resistor R1, second resistance R2,
Three resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 and the 9th resistance R9.
Comparator U1 negative pole ends are as reference voltage, and positive pole is in parallel with the 6th resistance R6, the 4th resistance R4 of U1 positive poles series connection
The output end BAT+ in battery supply is followed by, and the 5th resistance R5 is accessed between the 4th resistance R4, is then grounded；One or two pole
Pipe D1 is in parallel with the second diode D2, and the first diode D1 positive poles are connected with comparator U1, negative pole and the second triode Q2 b ends
It is connected, the second diode D2 negative poles are connected with the second triode Q2 b ends, and positive pole is connected with the first triode Q1 c ends；Second
The 7th resistance R7 of diode D2 b ends and the parallel connection of e ends both sides, c ends the 8th resistance R8 that then connects extremely are connected with metal-oxide-semiconductor Q3 s,
Metal-oxide-semiconductor Q3 is connected on the output end BAT+ of battery supply, metal-oxide-semiconductor Q3 s poles in parallel with the output end BAT+ of battery supply
Nine resistance R9；First triode Q1 e ends are connected with the second triode Q2 e ends, and the first triode Q1 b ends are sequentially connected in series
Two resistance R2, first resistor R1 are followed by the output end BAT+ in battery supply, first resistor R1 sides and the first triode Q1 c ends
Both sides parallel connection 3rd resistor R3；Access electric capacity C1 sides between first resistor R1 and second resistance R2, electric capacity C1 opposite sides and the
One triode Q1 e ends and the second triode Q2 e ends are connected and are grounded.
Setting automatically engage voltage, when cell voltage higher than setting when automatically engaging voltage, battery can automatically engage for
Load supplying；When cell voltage is less than voltage is automatically engaged, it is load supplying that battery, which stops,.Set the first triode and second
The Vbe of triode is set to 0.7V.
The operation principle of foregoing circuit is as follows：
Circuit in the present invention is practically applicable to the battery of battery-end and load end altogether and automatically engages system, that is, controls battery input
Switch is in high-pressure side（Accompanying drawing 1）, this mode is than battery and the load not system on ground altogether（Accompanying drawing 2）It is more excellent, it is possible to reduce control
The quantity of system supplymentary power supply, simplify logic circuit.
As shown in Figure 3, when cell voltage is higher than setting when automatically engaging voltage, battery can be certainly for whole control circuit
Dynamic input is load supplying；When cell voltage is less than automatically engaging, battery no longer puts into powering load.
Detection output voltage Vout is automatically engaged a little as battery, and the detection circuit is a comparator U1, comparator U1's
A reference source Vref, comparator U1 power supply are all taken from output Vout.When output voltage is higher than voltage is automatically engaged, comparator
Export high level.When output voltage is less than voltage is automatically engaged, comparator output low level.
When battery-end puts into battery, electric current is charged by resistance R1 to electric capacity C1, and C1 voltages slowly climb, and has just started C1 electricity
Press relatively low, triode Q1 Vbe is less than 0.7V, and Q1 is not turned on cell voltages BAT+ and is added on R3, D2, R7 so that Q2 Vbe=
0.7V, triode Q2 are turned on, and now R8 just has electric current to be equal to V by producing pressure drop, R8 both end voltages（GS）=,
Pass through the build-out resistor V（GS）Less than P-channel MOS cut-in voltage, P-channel MOS Q3 will be turned on, and cell voltage adds
To output end, input voltage detection comparator U1 obtains electric, if this output voltage automatically engages a little higher than battery, comparator U1 is exported
High level；If output voltage automatically engages a little less than battery, comparator exports low level, and D1 is obstructed.By the ginseng for configuring R1, C1
Number so that after the 100ms times, Q2 Vbe=0.7V, Q2 conducting, D2 are not turned on.Now, whether Q3 conducting depends on comparator
U1 exports high level or low level.If comparator U1 exports high level, D1 conductings, Q1 conductings, P-channel MOS Q3 conductings, electricity
Pond automatically accesses success；If comparator exports low level, D1 is not turned on, and Q1 is not turned on, P-channel MOS Q3 shut-offs, and battery is automatic
Access failure, output end dead electricity, comparator dead electricity, battery log off, and do not load from battery electricity-taking.
There is above-described embodiment to understand, the circuit that automatically engages in the present invention can apply to the plumbic acid of battery and load altogether
Battery or the management of charging and discharging of colloid maintenance-free battery or super capacitor, realization automatically engage, and when battery exits load supplying,
It detects the electric energy that circuit does not consume battery.
It is last it should be noted that above example is only illustrating the technical scheme of the embodiment of the present invention rather than it is entered
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, one of ordinary skill in the art
It should be understood that can still be modified to the technical scheme of the embodiment of the present invention or equivalent substitution, and these modifications or wait
The scope of amended technical scheme disengaging technical scheme of the embodiment of the present invention can not also be made with replacement.
Claims (3)
1. a kind of battery automatically engages circuit, it is characterised in that：
The circuit that automatically engages includes comparator, metal-oxide-semiconductor, the first triode, the second triode, electric capacity, the first diode, the
Two diodes, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th
Resistance and the 9th resistance；
Comparator negative pole end is followed by defeated in power supply as reference voltage, positive pole and the 6th resistor coupled in parallel, positive pole the 4th resistance of series connection
Go out end, and the 5th resistance is accessed between the 4th resistance, be then grounded；First diode and the second diodes in parallel, the one or two
Pole pipe positive pole is connected with comparator, and negative pole is connected with the second triode b ends, the second diode cathode and the second triode b ends phase
Even, positive pole is connected with the first triode c ends；Second diode b ends and e ends both sides the 7th resistance in parallel, c ends are then connected the 8th electricity
Resistance is extremely connected with metal-oxide-semiconductor s, and metal-oxide-semiconductor is connected on power output end, metal-oxide-semiconductor s poles nineth resistance in parallel with power output end；The
One triode e ends are connected with the second triode e ends, and the first triode b ends are sequentially connected in series second resistance, first resistor is followed by electricity
Source output terminal, first resistor side and the first triode c ends both sides parallel connection 3rd resistor；Accessed between first resistor and second resistance
Electric capacity side, electric capacity opposite side are connected and are grounded with the first triode e ends and the second triode e ends.
A kind of 2. circuit application method as claimed in claim 1, it is characterised in that：Setting automatically engages voltage, works as cell voltage
Higher than setting when automatically engaging voltage, battery can be automatically engaged as load supplying；Voltage is automatically engaged when cell voltage is less than
When, it is load supplying that battery, which stops,.
A kind of 3. circuit application method as claimed in claim 2, it is characterised in that：First triode and the second triode
Vbe is set to 0.7V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014126.4A CN107834692A (en) | 2017-10-26 | 2017-10-26 | A kind of battery automatically engages circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711014126.4A CN107834692A (en) | 2017-10-26 | 2017-10-26 | A kind of battery automatically engages circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834692A true CN107834692A (en) | 2018-03-23 |
Family
ID=61649336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711014126.4A Pending CN107834692A (en) | 2017-10-26 | 2017-10-26 | A kind of battery automatically engages circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107834692A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746446A (en) * | 2013-12-20 | 2014-04-23 | 青岛歌尔声学科技有限公司 | Ceaseless power-supplying circuit and electronic product |
| CN204334052U (en) * | 2014-12-31 | 2015-05-13 | 无锡市金赛德电子有限公司 | A kind of battery drops into circuit automatically |
| CN105610239A (en) * | 2016-02-22 | 2016-05-25 | 黄焕珠 | Automatic input device of emergency power supply |
| CN107069937A (en) * | 2017-04-25 | 2017-08-18 | 航天科技控股集团股份有限公司 | Automatic change-over device of emergency |
-
2017
- 2017-10-26 CN CN201711014126.4A patent/CN107834692A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746446A (en) * | 2013-12-20 | 2014-04-23 | 青岛歌尔声学科技有限公司 | Ceaseless power-supplying circuit and electronic product |
| CN204334052U (en) * | 2014-12-31 | 2015-05-13 | 无锡市金赛德电子有限公司 | A kind of battery drops into circuit automatically |
| CN105610239A (en) * | 2016-02-22 | 2016-05-25 | 黄焕珠 | Automatic input device of emergency power supply |
| CN107069937A (en) * | 2017-04-25 | 2017-08-18 | 航天科技控股集团股份有限公司 | Automatic change-over device of emergency |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518103 2 floor, B3 building, Fuyuan Industrial Zone, Baoan District Fuyong street, Shenzhen, Guangdong Applicant after: Shenzhen Lingkang Technology Co., Ltd. Address before: 518103 2 floor, B3 building, Fuyuan Industrial Zone, Baoan District Fuyong street, Shenzhen, Guangdong Applicant before: Shenzhen Ling Kang technology Limited by Share Ltd |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |