CN105406574A - High-efficiency supercapacitor charger - Google Patents
High-efficiency supercapacitor charger Download PDFInfo
- Publication number
- CN105406574A CN105406574A CN201510976873.0A CN201510976873A CN105406574A CN 105406574 A CN105406574 A CN 105406574A CN 201510976873 A CN201510976873 A CN 201510976873A CN 105406574 A CN105406574 A CN 105406574A
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- CN
- China
- Prior art keywords
- super capacitor
- voltage
- chip microcomputer
- direct current
- mos transistor
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- 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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- 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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a high-efficiency supercapacitor charger. The high-efficiency supercapacitor charger comprises a singlechip, a DC-DC voltage converter, a metal-oxide-semiconductor (MOS) transistor, a flywheel diode and an energy storage inductor, wherein the DC-DC voltage converter is used for converting a DC bus voltage to a low voltage to be supplied to the singlechip, an output driving signal of the singlechip is connected with a gate electrode of the MOS transistor through level conversion, and the MOS transistor, the inductor and the flywheel diode forms a BUCK circuit.
Description
Technical field
The present invention relates to supercapacitor technologies field, more particularly, the present invention relates to a kind of super capacitor high-efficient charger.
Background technology
Ultracapacitor, also referred to as " double electric layer capacitor ", based on the work of electric double layer principle, has the capacitor of the high power density of ordinary capacitor and the high-energy-density of storage battery concurrently.Along with the progress of nano-carbon material and electrode fabrication technology, the performance of ultracapacitor is constantly improved, and especially energy density is greatly improved, and has and realizes large-capacity power energy storage, substitutes the development potentiality of storage battery.Ultracapacitor belongs to physics energy storage device, its charge and discharge process nature is the adsorption and desorption process of conductive ion on electrode, to electron ion ordered arrangement after charging, comes back to disordered state after electric discharge.The surface area that electrode material is huge makes this process not have too many obstacle, and its charging and discharging currents is unrestricted in theory, thus has very high power density and efficiency for charge-discharge.And, manufacture the material of ultracapacitor not containing heavy metal, can not to environment.
Ultracapacitor is different from storage battery, and it can be discharged into voltage is 0.In transportation, ultracapacitor is also the state without energy storage.This just requires that its charger must be able to charge from no-voltage, keeps current constant.
At present, also not having can the very effective charger for super capacitor charging.
Summary of the invention
Technical problem to be solved by this invention is for there is above-mentioned defect in prior art, provide a kind of can very effective for super capacitor charging super capacitor high-efficient charger.
In order to realize above-mentioned technical purpose, according to the present invention, providing a kind of super capacitor high-efficient charger, comprising: single-chip microcomputer, direct current-direct current voltage converter, MOS transistor, fly-wheel diode and energy-storage reactor; Wherein, direct current-direct current voltage converter is used for converting DC bus-bar voltage to low pressure to be supplied to single-chip microcomputer; The output drive signal of single-chip microcomputer connects the gate pole of MOS transistor through level conversion.MOS transistor, inductor, fly-wheel diode form BUCK circuit.
Preferably, single-chip microcomputer connects direct current and compresses into row sampling to DC bus cathode voltage and super capacitor electrode, and carries out calculating to provide pulse width modulating signal to carry out driven MOS pipe according to the d-c bus voltage value sampled and ultracapacitor voltage value and circuit parameter.
Preferably, circuit parameter comprises the inductance value of energy-storage reactor, the forward conduction voltage drop of diode.
Preferably, described super capacitor high-efficient charger also comprises: display, for showing the operating state of charger.
Accompanying drawing explanation
By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its adjoint advantage and feature, wherein:
Fig. 1 schematically shows the block diagram of super capacitor high-efficient charger according to the preferred embodiment of the invention.
Fig. 2 schematically shows the simulation result of super capacitor high-efficient charger according to the preferred embodiment of the invention.
It should be noted that, accompanying drawing is for illustration of the present invention, and unrestricted the present invention.Note, represent that the accompanying drawing of structure may not be draw in proportion.Further, in accompanying drawing, identical or similar element indicates identical or similar label.
Embodiment
In order to make content of the present invention clearly with understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.
Fig. 1 schematically shows the block diagram of super capacitor high-efficient charger according to the preferred embodiment of the invention.
As shown in Figure 1, super capacitor high-efficient charger comprises according to the preferred embodiment of the invention: single-chip microcomputer 10, direct current-direct current voltage converter 20, MOS transistor Q1, diode D1, diode D2 and energy-storage reactor 30.
Wherein, direct current-direct current voltage converter 20 is for converting low pressure to be supplied to single-chip microcomputer 10 by DC bus-bar voltage; The output drive signal of single-chip microcomputer 10 connects the gate pole of MOS transistor Q1 through level conversion.MOS transistor Q1, energy-storage reactor 30, sustained diode 1 form BUCK circuit.
Wherein, direct current-direct current voltage converter 20 becomes low pressure to be supplied to single-chip microcomputer 10 for the voltage transitions provided by DC bus 51 and 53; The output drive signal of single-chip microcomputer 10 enters the gate pole of over level conversion connection MOS transistor.Diode D1 is fly-wheel diode, and when diode D2 is used for preventing super capacitor from discharging, electric current flows through Q1.
Single-chip microcomputer 10 pairs of DC bus-bar voltage and super capacitor electrode compress into row sampling, and carry out calculating to provide pulse width modulating signal (PWM) to carry out driven MOS pipe Q1 according to the d-c bus voltage value sampled and ultracapacitor voltage value and circuit parameter (particularly, circuit parameter comprises energy-storage reactor 30 inductance value, the forward conduction voltage drop of diode D1 and the forward conduction voltage drop of diode D2).
Particularly, single-chip microcomputer 10 is with d-c bus voltage value and ultracapacitor voltage value and circuit parameter for known quantity, and charging current mean value is aim parameter, according to the principle of Switching Power Supply, calculates the service time as the Q1 of switching tube and turn-off time.In charging process, ultracapacitor voltage is change, so will calculate in real time, adjusts in real time.
Direct voltage connects the A/D conversion port of single-chip microcomputer through suitable divider resistance, and single-chip microcomputer just can be sampled the voltage of correspondence.
In foregoing circuit structure, the effect of diode D2 to prevent discharging current from flowing through afterflow metal-oxide-semiconductor Q1, plays the effect of protection Q1.
Energy-storage reactor 30 can play the effect of smoothing current.
The agent structure of charger is the BUCK converter of an isomery.MOS transistor Q1 is operated in switching mode.Single-chip microcomputer real-time sampling DC bus-bar voltage, ultracapacitor voltage, service time of afterflow Q1 and switch periods is gone out (in other words according to these two voltages and circuit parameter calculation, calculate duty and the cycle of rushing bandwidth modulation signals), inductive current can be made to be in " critical continuous mode " state, that is: each Q1 is open-minded, electric current is all rise from 0, makes charging current keep constant.Doing so avoids the Reverse recovery noise of fly-wheel diode Q1, reduce switching loss, improve efficiency.Meanwhile, the pulse width modulating signal calculated in single-chip microcomputer ensure that the voltage of ultracapacitor realizes constant current charge in very wide scope.
Fig. 2 schematically shows the simulation result of super capacitor high-efficient charger according to the preferred embodiment of the invention.The transverse axis of Fig. 2 represents ultracapacitor voltage (unit: V), and left vertical represents charging current (unit: A), and right vertical represents service time and the service time (unit: us) of fly-wheel diode Q1.Illustrated therein is when DC bus-bar voltage 330V, current constant in the scope that super capacitor electrode is pressed in 25V to 305V, keep charging current at 10A.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (4)
1. a super capacitor high-efficient charger, is characterized in that comprising: single-chip microcomputer, direct current-direct current voltage converter, MOS transistor, fly-wheel diode and energy-storage reactor; Wherein, direct current-direct current voltage converter is used for converting DC bus-bar voltage to low pressure to be supplied to single-chip microcomputer; The output drive signal of single-chip microcomputer connects the gate pole of MOS transistor through level conversion; MOS transistor, inductor, fly-wheel diode form BUCK circuit.
2. super capacitor high-efficient charger according to claim 1, it is characterized in that, single-chip microcomputer compresses into row sampling to DC bus-bar voltage and super capacitor electrode, and carries out calculating to provide pulse width modulating signal to carry out driven MOS pipe according to the d-c bus voltage value sampled and ultracapacitor voltage value and circuit parameter.
3. super capacitor high-efficient charger according to claim 2, is characterized in that, circuit parameter comprises the inductance value of energy-storage reactor, the forward conduction voltage drop of diode.
4. super capacitor high-efficient charger according to claim 1 and 2, characterized by further comprising: display, for showing the operating state of charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976873.0A CN105406574A (en) | 2015-12-23 | 2015-12-23 | High-efficiency supercapacitor charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976873.0A CN105406574A (en) | 2015-12-23 | 2015-12-23 | High-efficiency supercapacitor charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105406574A true CN105406574A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976873.0A Pending CN105406574A (en) | 2015-12-23 | 2015-12-23 | High-efficiency supercapacitor charger |
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| Country | Link |
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| CN (1) | CN105406574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936366A (en) * | 2017-05-12 | 2017-07-07 | 哈尔滨工业大学 | A kind of energy recovery control system of the variable-frequency washing machine based on super capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195363A (en) * | 2010-03-11 | 2011-09-21 | 袁芳革 | Charging and discharging device and method for super capacitor |
| CN103036285A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Super capacitor charging circuit |
| CN104038051A (en) * | 2014-05-26 | 2014-09-10 | 株洲变流技术国家工程研究中心有限公司 | Pulsed direct current power supply system |
| CN104810888A (en) * | 2015-04-20 | 2015-07-29 | 江苏品源电子科技有限公司 | Super capacitor charging-discharging and reverse protection circuit |
-
2015
- 2015-12-23 CN CN201510976873.0A patent/CN105406574A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195363A (en) * | 2010-03-11 | 2011-09-21 | 袁芳革 | Charging and discharging device and method for super capacitor |
| CN103036285A (en) * | 2012-12-07 | 2013-04-10 | 陕西千山航空电子有限责任公司 | Super capacitor charging circuit |
| CN104038051A (en) * | 2014-05-26 | 2014-09-10 | 株洲变流技术国家工程研究中心有限公司 | Pulsed direct current power supply system |
| CN104810888A (en) * | 2015-04-20 | 2015-07-29 | 江苏品源电子科技有限公司 | Super capacitor charging-discharging and reverse protection circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936366A (en) * | 2017-05-12 | 2017-07-07 | 哈尔滨工业大学 | A kind of energy recovery control system of the variable-frequency washing machine based on super capacitor |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160316 |