CN106451660A - Voltage-sharing circuit - Google Patents
Voltage-sharing circuit Download PDFInfo
- Publication number
- CN106451660A CN106451660A CN201611005008.2A CN201611005008A CN106451660A CN 106451660 A CN106451660 A CN 106451660A CN 201611005008 A CN201611005008 A CN 201611005008A CN 106451660 A CN106451660 A CN 106451660A
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- China
- Prior art keywords
- voltage
- energy
- audion
- resistance
- storage units
- 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.)
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Classifications
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
Abstract
The invention discloses a voltage-sharing circuit. The voltage-sharing circuit comprises a voltage comparative module and a voltage control module; the voltage comparative module comprises a first energy storage unit, a second energy storage unit, a first resistor, a second resistor, a first voltage comparator and a second voltage comparator; the voltage control module comprises a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first diode, a second diode, a first audion and a second audion. When the voltage-sharing circuit is normally worked, the voltage control circuit is used for comparing the collected reference voltage with the voltage of the energy storage unit so as to judge if every energy storage unit can share voltage and output a controls signal to control the connection or disconnection of the first audion and the second audion, and thereby adjusting the voltage value of the energy storage unit, and further reaching the voltage-sharing effect.
Description
Technical field
The invention belongs to electronic technology field, more particularly, to a kind of new equalizer circuit.
Background technology
In scientific research with industrial actual production, many electrical equipments are to obtain electricity from series-connection charge-discharge energy-storage units
Can be operated, the typical energy storage device of one of which is super capacitor, and the capacitance of super capacitor is big.Rated voltage is low,
Generally require a large amount of series connection when actually used, this necessarily involves the unbalanced problem of voltage, due to energy-storage units and circuit elements
, the phenomenon of series unit voltage differences in the Discrete Distribution of device parameters, situation more than the series unit quantity for this phenomenon
Under especially prominent.
Content of the invention
The goal of the invention of the present invention is:In order to solve problem above present in prior art, the present invention proposes one kind
Low cost, the equalizer circuit of the series-connection charge-discharge unit of low-power consumption, adopt to the voltage of each energy-storage units in series circuit
Collection, controls each energy-storage units in series circuit to carry out discharge and recharge action it is ensured that the voltage of each energy-storage units to the greatest extent may be used respectively
Can be equal.
The technical scheme is that:A kind of equalizer circuit, including voltage comparison module and voltage control module;Described electricity
Pressure comparison module includes first energy-storage units, second energy-storage units, first resistor, second resistance, first voltage comparator and the
Two voltage comparators;One termination positive source of described first energy-storage units, the other end connects power supply by second energy-storage units and bears
Pole;One termination positive source of described first resistor, the other end connects power cathode by second resistance;Described first voltage compares
The in-phase end of device is connected with the connected end of first resistor and second resistance, end of oppisite phase and first energy-storage units and second energy-storage units
Connected end connect;The in-phase end of described second voltage comparator is connected with the end of oppisite phase of described first voltage comparator, anti-phase
End is connected with the in-phase end of described first voltage comparator;Described voltage control module include 3rd resistor, the 4th resistance, the 5th
Resistance, the 6th resistance, the first diode, the second diode, the first audion and the second audion;Described 3rd resistor one terminates
Positive source, the other end is connected with the outfan of described first voltage comparator;Described 4th resistance one terminates positive source, separately
One end is connected with the colelctor electrode of described first audion;Described 5th resistance one end is anti-with described first voltage comparator respectively
Mutually the emitter stage of end and described first audion connects, and the other end is connected with the outfan of described second voltage comparator;Described
6th resistance one end is connected with the emitter stage of described first audion, and the other end is connected with the colelctor electrode of described second audion;
The positive pole of described first diode is connected with the outfan of described first voltage comparator, the base of negative pole and described first audion
Pole connects;The positive pole of described second diode is connected with the outfan of described second voltage comparator, negative pole and the described 2nd 3
The base stage of pole pipe connects;The emitter stage of described second audion connects power cathode.
Further, described first energy-storage units adopt battery cell, battery bag, super capacitor monomer or super capacitor group
Energy-storage travelling wave tube.
Further, described second energy-storage units adopt battery cell, battery bag, super capacitor monomer or super capacitor group
Energy-storage travelling wave tube.
Further, described first resistor is identical with the resistance of second resistance.
Further, described first voltage comparator adopts the voltage comparator chip of OC output type.
Further, described second voltage comparator adopts the voltage comparator chip of OC output type.
The invention has the beneficial effects as follows:The equalizer circuit of the present invention in normal work, using voltage control circuit to adopting
Whether all the reference voltage collecting and the voltage of energy-storage units are compared to judge each energy-storage units pressure output control letter
Number controlling the first audion and the second audion to open or turn off, thus adjusting the magnitude of voltage of energy-storage units, being reached with this
Voltage equalizing, no matter the voltage of energy-storage units is less than also is above reference voltage value, all can reach voltage equalizing by adjustment, and
And have the advantages that circuit structure is simple, with low cost, it is particularly well-suited to scientific research and commercial production.
Brief description
Fig. 1 is the equalizer circuit schematic diagram of the present invention.
Fig. 2 is that in the embodiment of the present invention, energy-storage units are 3 and above equalizer circuit schematic diagram.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the equalizer circuit schematic diagram for the present invention.A kind of equalizer circuit, including voltage comparison module and electricity
Pressure control module.
The voltage comparison module of the present invention is used for gathering the voltage of reference voltage and energy-storage units, and it includes the first energy storage list
First C1, second energy-storage units C2, first resistor R1, second resistance R2, first voltage comparator U1A and second voltage comparator
U1B;One termination positive source VCC of described first energy-storage units C1, the other end connects power cathode by second energy-storage units C2
GND;One termination positive source VCC of described first resistor R1, the other end meets power cathode GND by second resistance R2;Described
The in-phase end of first voltage comparator U1A is connected with the connected end of first resistor R1 and second resistance R2, and end of oppisite phase and first stores up
The connected end of energy unit C1 and second energy-storage units C2 connects;The in-phase end and described first of described second voltage comparator U1B
The end of oppisite phase of voltage comparator U1A connects, and end of oppisite phase is connected with the in-phase end of described first voltage comparator U1A.
The voltage control module of the present invention is used for the voltage of the reference voltage collecting and energy-storage units is compared to
Judge whether mean deviation output control signal adjusts the magnitude of voltage of each energy-storage units to each energy-storage units voltage, and it includes the 3rd
Resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first diode D1, the second diode D2, the first audion
Q1 and the second audion Q2;Described 3rd resistor R3 mono- terminates positive source VCC, the other end and described first voltage comparator
The outfan of U1A connects;Described 4th resistance R4 mono- terminates positive source VCC, the collection of the other end and described first audion Q1
Electrode connects;Described 5th resistance R5 one end end of oppisite phase and described one or three pole with described first voltage comparator U1A respectively
The emitter stage of pipe Q1 connects, and the other end is connected with the outfan of described second voltage comparator U1B;Described 6th resistance R6 one end
It is connected with the emitter stage of described first audion Q1, the other end is connected with the colelctor electrode of described second audion Q2;Described first
The positive pole of diode D1 is connected with the outfan of described first voltage comparator U1A, the base of negative pole and described first audion Q1
Pole connects;The positive pole of described second diode D2 is connected with the outfan of described second voltage comparator U1B, negative pole and described the
The base stage of two audion Q2 connects;The emitter stage of described second audion Q2 meets power cathode GND.
Preferably, first energy-storage units C1 of the present invention and second energy-storage units C2 are all using battery cell, battery bag, super
The level energy-storage travelling wave tube such as electric capacity monomer or super capacitor group, first voltage comparator U1A and second voltage comparator U1B is all using OC
The voltage comparator chip of output type;In order to reach voltage equalizing as far as possible, the present invention adopts resistance identical first resistor
R1 and second resistance R2.
The operation principle of the present invention is:
When normal circuit operation, if first energy-storage units C1 magnitude of voltage is more than second energy-storage units C2, first voltage
The 2 foot magnitudes of voltage of comparator U1A are more than 3 foot magnitudes of voltage, and the 5 foot magnitudes of voltage of second voltage comparator U1B are more than 6 foot magnitudes of voltage,
The 1 foot output high level of first voltage comparator U1A controls the first audion Q1 conducting, so that first energy-storage units C1 start
Electric discharge;7 foot output low level control the second audion Q2 of second voltage comparator U1B turn off, so that second energy-storage units
C2 starts to charge up.With first energy-storage units C1 electric discharge second energy-storage units C2 charge, 2 feet of first voltage comparator U1A or
The 5 foot voltages of second voltage comparator U1B raise up to 6 with 3 feet or second voltage comparator U1B of first voltage comparator
Foot is equal, and now the first audion Q1, the second audion Q2 are turned off, the electricity of first energy-storage units C1 and second energy-storage units C2
Pressure value approximately equal, is finally reached voltage equalizing.If first energy-storage units C1 magnitude of voltage is less than second energy-storage units C2, in the same manner all
Volt circuit is the same to work, and finally make the magnitude of voltage approximately equal of first energy-storage units C1 and second energy-storage units C2, reach all
Pressure effect.
Particularly, the present invention all can also be pressed to 3 and above energy-storage units.As shown in Fig. 2 it is real for the present invention
Applying energy-storage units in example is 3 and above equalizer circuit schematic diagram.The work of the equalizer circuit being 3 for energy-storage units is former
Manage and be:When first energy-storage units C1 magnitude of voltage is equal to reference value, second energy-storage units C2 magnitude of voltage is more than reference value, energy-storage units
When C3 magnitude of voltage is less than reference value, now 1 foot output low level control the first audion Q1 of first voltage comparator U1A closes
Disconnected;The 1 foot output high level of voltage comparator U2A controls the second audion Q2 open-minded, and second energy-storage units C2 are discharged;Voltage ratio
Compared with device U2B 7 feet output low level control audion Q3 turn off, energy-storage units C3 charge, until first energy-storage units C1, second
Energy-storage units C2, energy-storage units C3 magnitude of voltage approximately equal, the first audion Q1, the second audion Q2, audion Q3 turn off,
Reach voltage equalizing eventually.In the same manner, for energy-storage units be the same more than the equalizer circuit of 3 can work, finally make each energy storage
The magnitude of voltage approximately equal of unit, reaches voltage equalizing.
Those of ordinary skill in the art will be appreciated that, embodiment described here is to aid in reader and understands this
Bright principle is it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.This area
Those of ordinary skill can make various other each without departing from present invention essence according to these technology disclosed by the invention enlightenment
Plant concrete deformation and combine, these deform and combine still within the scope of the present invention.
Claims (6)
1. a kind of equalizer circuit is it is characterised in that include voltage comparison module and voltage control module;Described voltage comparison module
Compare including first energy-storage units, second energy-storage units, first resistor, second resistance, first voltage comparator and second voltage
Device;One termination positive source of described first energy-storage units, the other end connects power cathode by second energy-storage units;Described first
One termination positive source of resistance, the other end connects power cathode by second resistance;The in-phase end of described first voltage comparator
It is connected with the connected end of first resistor and second resistance, end of oppisite phase is connected with the connected end of first energy-storage units and second energy-storage units
Connect;The in-phase end of described second voltage comparator is connected with the end of oppisite phase of described first voltage comparator, end of oppisite phase and described the
The in-phase end of one voltage comparator connects;Described voltage control module include 3rd resistor, the 4th resistance, the 5th resistance, the 6th
Resistance, the first diode, the second diode, the first audion and the second audion;Described 3rd resistor one terminates positive source,
The other end is connected with the outfan of described first voltage comparator;Described 4th resistance one terminates positive source, the other end and institute
The colelctor electrode stating the first audion connects;Described 5th resistance one end end of oppisite phase and institute with described first voltage comparator respectively
The emitter stage stating the first audion connects, and the other end is connected with the outfan of described second voltage comparator;Described 6th resistance
One end is connected with the emitter stage of described first audion, and the other end is connected with the colelctor electrode of described second audion;Described first
The positive pole of diode is connected with the outfan of described first voltage comparator, and negative pole is connected with the base stage of described first audion;
The positive pole of described second diode is connected with the outfan of described second voltage comparator, the base of negative pole and described second audion
Pole connects;The emitter stage of described second audion connects power cathode.
2. equalizer circuit as claimed in claim 1 is it is characterised in that described first energy-storage units adopt battery cell, battery
Bag, super capacitor monomer or super capacitor group energy-storage travelling wave tube.
3. equalizer circuit as claimed in claim 2 is it is characterised in that described second energy-storage units adopt battery cell, battery
Bag, super capacitor monomer or super capacitor group energy-storage travelling wave tube.
4. equalizer circuit as claimed in claim 3 is it is characterised in that described first resistor is identical with the resistance of second resistance.
5. equalizer circuit as claimed in claim 4 is it is characterised in that described first voltage comparator adopts the electricity of OC output type
Pressure comparator chip.
6. equalizer circuit as claimed in claim 5 is it is characterised in that described second voltage comparator adopts the electricity of OC output type
Pressure comparator chip.
Priority Applications (1)
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CN201611005008.2A CN106451660B (en) | 2016-11-15 | 2016-11-15 | A kind of equalizer circuit |
Applications Claiming Priority (1)
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CN201611005008.2A CN106451660B (en) | 2016-11-15 | 2016-11-15 | A kind of equalizer circuit |
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CN106451660A true CN106451660A (en) | 2017-02-22 |
CN106451660B CN106451660B (en) | 2019-09-24 |
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Citations (6)
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US6806686B1 (en) * | 2003-04-25 | 2004-10-19 | Maxwell Technologies, Inc. | Charge balancing circuit |
CN1667909A (en) * | 2005-04-05 | 2005-09-14 | 苏州星恒电源有限公司 | Battery equalization method and battery equalization circuit |
CN101188364A (en) * | 2007-12-12 | 2008-05-28 | 中国科学院电工研究所 | A voltage balance circuit for serial connected super capacitor |
CN101202470A (en) * | 2007-12-06 | 2008-06-18 | 中国科学院电工研究所 | Electric voltage equalization circuit for connecting in series super battery of capacitors |
CN103972946A (en) * | 2013-12-18 | 2014-08-06 | 芜湖天元汽车电子有限公司 | Battery energy balance circuit and method for applying same |
CN204190441U (en) * | 2014-10-28 | 2015-03-04 | 陕西千山航空电子有限责任公司 | A kind of series connected super-capacitor module equalizing circuit |
-
2016
- 2016-11-15 CN CN201611005008.2A patent/CN106451660B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6806686B1 (en) * | 2003-04-25 | 2004-10-19 | Maxwell Technologies, Inc. | Charge balancing circuit |
CN1667909A (en) * | 2005-04-05 | 2005-09-14 | 苏州星恒电源有限公司 | Battery equalization method and battery equalization circuit |
CN101202470A (en) * | 2007-12-06 | 2008-06-18 | 中国科学院电工研究所 | Electric voltage equalization circuit for connecting in series super battery of capacitors |
CN101188364A (en) * | 2007-12-12 | 2008-05-28 | 中国科学院电工研究所 | A voltage balance circuit for serial connected super capacitor |
CN103972946A (en) * | 2013-12-18 | 2014-08-06 | 芜湖天元汽车电子有限公司 | Battery energy balance circuit and method for applying same |
CN204190441U (en) * | 2014-10-28 | 2015-03-04 | 陕西千山航空电子有限责任公司 | A kind of series connected super-capacitor module equalizing circuit |
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Effective date of registration: 20211228 Address after: 277500 workshop A3 in Tengzhou Mozi science and Technology Innovation Park, Xizhong Road, Jinghe street, Tengzhou City, Zaozhuang City, Shandong Province Patentee after: Shandong Huashu Intelligent Technology Co.,Ltd. Address before: 430223, East Lake Wuhan New Technology Development Zone, Temple Hill District, Huazhong University of Science and Technology, Hubei science and Technology Park Patentee before: WUHAN HUAZHONG NUMERICAL CONTROL Co.,Ltd. |