CN202444330U - Voltage-sharing modules and voltage-sharing devices of series super-capacitor module group - Google Patents
Voltage-sharing modules and voltage-sharing devices of series super-capacitor module group Download PDFInfo
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- CN202444330U CN202444330U CN2011205027248U CN201120502724U CN202444330U CN 202444330 U CN202444330 U CN 202444330U CN 2011205027248 U CN2011205027248 U CN 2011205027248U CN 201120502724 U CN201120502724 U CN 201120502724U CN 202444330 U CN202444330 U CN 202444330U
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- module
- voltage
- super capacitor
- ultracapacitor
- pressure
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Abstract
The utility model discloses voltage-sharing modules and voltage-sharing devices of a series super-capacitor module group. The module includes a switch device (SW), a high frequency transformer (T), a rectifier diode (Dc), a voltage stabilizing capacitor (Ct), a feedback diode (Df), and a control circuit (C). Each single super-capacitor in the series super-capacitor module group is connected in parallel with a voltage-sharing module to form the voltage-sharing device. When the control circuit C detects that the voltage of the single super-capacitor exceeds a set value, the control circuit C can control the voltage-sharing device to feed back the energy in the super-capacitor to a charging circuit, so the voltage no longer rises, and consequently the voltage of each super-capacitor in the series super-capacitor module group is even.
Description
Technical field
The utility model relates to the ultracapacitor technical field, in particular a kind of serial connected super capacitor module pressure module and the pressure-equalizing device that is made up of pressure module.
Background technology
Ultracapacitor is a kind of energy storage device of novel high-energy metric density; It has the advantage that conventional capacitor power density is big, the rechargeable battery specific energy is high concurrently; But fast charging and discharging and life-span are long, in electric automobile, emergency power supply and Electric Power Automation Equipment field good prospects for application are arranged
The voltage of ultracapacitor monomer is lower, generally is no more than 2.7V, in order to satisfy the needs of electric pressure, usually a plurality of ultracapacitors is formed module work through the mode of series connection.But voltage is unbalanced when having caused its tandem working because of the parameter discrete property between the monomer ultracapacitor, has seriously influenced the life-span and the stability of module, and therefore, the technology of pressure equalization of serial connected super capacitor is key one ring in the middle of its modular technology.
Summary of the invention
Technical problem:The purpose of the utility model is the pressure-equalizing device that a kind of serial connected super capacitor module pressure module is provided and is made up of pressure module.
Technical scheme:The serial connected super capacitor module pressure module of the utility model comprises switching device, high frequency transformer, rectifier diode, electric capacity of voltage regulation, feedback diode and control circuit, wherein:
Said high frequency transformer is made up of first side winding and secondary side winding, and control circuit comprises voltage detecting interface and switching device driving interface;
Said high frequency transformer first side winding end of the same name is connected the drain electrode of different name end and switching device with the monomer ultracapacitor in the serial connected super capacitor module is anodal
DConnect the source electrode of switching device
SBe connected with the monomer super capacitor anode, the voltage detecting interface of control circuit is parallelly connected with the monomer ultracapacitor, the control utmost point of the driving interface of control circuit and switching device
GConnect, the high frequency transformer secondary side winding is parallelly connected with electric capacity of voltage regulation and feedback diode through rectifier diode.
Described switching device is the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT; Described rectifier diode and feedback diode are Schottky diode or Ultrafast recovery diode.
The no-load voltage ratio of said high frequency transformer is 1:K, wherein 1 < K < N, and N is a monomer ultracapacitor quantity in the serial connected super capacitor module, and K is big more, and pressure rate is fast more.
Electric capacity of voltage regulation is used for setting up voltage at high frequency transformer secondary side winding output.
In the ultracapacitor pressure-equalizing device that the serial connected super capacitor module pressure module of the utility model constitutes, each the monomer ultracapacitor in the serial connected super capacitor module is parallelly connected with a pressure module in this device; In certain the monomer ultracapacitor parallel connection pressure module in the serial connected super capacitor module; The anode of feedback diode is connected on the negative electrode of feedback diode of the monomer ultracapacitor parallel connection pressure module that links to each other with this monomer super capacitor anode, and the negative electrode of feedback diode is connected on the anode with the feedback diode of the parallelly connected pressure module of the anodal monomer ultracapacitor that links to each other of this monomer ultracapacitor.
The negative electrode of the feedback diode in the serial connected super capacitor module in first monomer ultracapacitor parallel connection pressure module inserts charge circuit again.
Beneficial effect:The pressure-equalizing device that uses this patent disclosed series capacitor module pressure module and constitute by pressure module; Can be in serial connected super capacitor module charging process and under the static condition; Through energy from the transfer of the ultracapacitor that reaches voltage threshold to the ultracapacitor that does not reach voltage threshold; Make each the monomer ultracapacitor voltage in the module balanced, avoid the infringement of module overvoltage, and the under-voltage capacity usage ratio that causes of module is not enough ultracapacitor.
Description of drawings
The series mould set topology diagram that Fig. 1 is made up of n ultracapacitor and corresponding pressure module.
Wherein have: switching device
SW, high frequency transformer
T, rectifier diode
D c, electric capacity of voltage regulation
C t, feedback diode
D f, control circuit
C, the monomer ultracapacitor
C n , first monomer ultracapacitor
C 1
Embodiment
The utility model discloses a kind of serial connected super capacitor module pressure module, comprise switching device, high frequency transformer, rectifier diode, electric capacity of voltage regulation, feedback diode and control circuit, wherein:
Said high frequency transformer is made up of first side winding and secondary side winding, and control circuit comprises voltage detecting interface and switching device driving interface;
Said high frequency transformer first side winding end of the same name is connected the drain electrode of different name end and switching device with the monomer ultracapacitor in the serial connected super capacitor module is anodal
DConnect the source electrode of switching device
SBe connected with the monomer super capacitor anode, the voltage detecting interface of control circuit is parallelly connected with the monomer ultracapacitor, the control utmost point of the driving interface of control circuit and switching device
GConnect, the high frequency transformer secondary side winding is parallelly connected with electric capacity of voltage regulation and feedback diode through rectifier diode.
Described switching device is the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT; Described rectifier diode and feedback diode are Schottky diode or Ultrafast recovery diode.
The no-load voltage ratio of said high frequency transformer is 1:K, wherein 1 < K < N, and N is a monomer ultracapacitor quantity in the ultracapacitor module, and K is big more, and pressure rate is fast more.
Electric capacity of voltage regulation is used for setting up voltage at high frequency transformer secondary side winding output.
In the ultracapacitor pressure-equalizing device that serial connected super capacitor module pressure module constitutes, each the monomer ultracapacitor in the serial connected super capacitor module is parallelly connected with a pressure module in this device;
In certain the monomer ultracapacitor parallel connection pressure module in the serial connected super capacitor module; The anode of feedback diode is connected on the negative electrode of feedback diode of the monomer ultracapacitor parallel connection pressure module that links to each other with this monomer super capacitor anode, and the negative electrode of feedback diode is connected on the anode with the feedback diode of the parallelly connected pressure module of the anodal monomer ultracapacitor that links to each other of this monomer ultracapacitor.
The negative electrode of the feedback diode in the serial connected super capacitor module in first monomer ultracapacitor parallel connection pressure module inserts charge circuit.
After the electric capacity of voltage regulation voltage sum of all pressure modules surpasses serial connected super capacitor module voltage; Pressure-equalizing device provides feedback current through feedback diode to serial connected super capacitor module, and prevents that electric current from flowing into pressure-equalizing device from serial connected super capacitor module.
Below in conjunction with accompanying drawing execution mode of the utility model and concrete operating process are explained, but the protection range of the utility model is not limited to following specifying.
The described serial connected super capacitor of the utility model pressure module is by switching device
SW, high frequency transformer
T, rectifier diode
D c, electric capacity of voltage regulation
C t, feedback diode
D fAnd control circuit
CForm.High frequency transformer
TForm control circuit by first side winding and secondary side winding
CComprise voltage detecting interface and switching device driving interface.High frequency transformer
TFirst side winding end of the same name is connected different name end and switching device with the monomer ultracapacitor in the serial connected super capacitor module is anodal
SW DThe utmost point connects, switching device
SW SThe utmost point is connected control circuit with the monomer super capacitor anode
CThe voltage detecting interface parallelly connected with the monomer ultracapacitor, switching device driving interface and switching device
SW GThe utmost point connects, and the high frequency transformer secondary side winding is passed through rectifier diode
D cWith electric capacity of voltage regulation
C tAnd feedback diode
D fParallel connection.
As shown in fig. 1, n ultracapacitor
C 1~
C nSeries connection constitutes module, by current source
I sIt is charged,
I sConstitute charge circuit with serial connected super capacitor module.Pressure module of every ultracapacitor parallel connection, the feedback diode of each pressure module output
D fSeries connection each other, and through the feedback diode in first ultracapacitor parallel connection pressure module
D fInsert the ultracapacitor module and constitute pressure-equalizing device.
Pressure-equalizing device is the feedback loop that inserts serial connected super capacitor module in essence.
Current source
I sWhen serial connected super capacitor module was charged, each pressure module in the pressure-equalizing device detected the monomer ultracapacitor voltage parallelly connected with it through the voltage detecting interface, reach the magnitude of voltage of setting when its voltage after, the switching device in this pressure module
SWStart working, through high frequency transformer at electric capacity of voltage regulation
C tHigh voltage of last formation.When this voltage surpassed the summation of serial connected super capacitor module terminal voltage, pressure-equalizing device will produce feedback current and flow into charge circuit, and this moment, this monomer ultracapacitor released energy, and was lower than the magnitude of voltage of setting, switching device up to terminal voltage
SWQuit work.Other monomer ultracapacitor voltages reach set point and feedback energy successively in the module subsequently, and each monomer super capacitor electrode flattens all during complete charge.
The high frequency transformer no-load voltage ratio that designs in all pressure modules does
K, in module, have 1/
KMonomer ultracapacitor voltage when reaching set point, the electric capacity of voltage regulation voltage sum in can these monomer ultracapacitors parallel connection pressure modules is lifted to above the module terminal voltage and forms feedback current.
Claims (5)
1. serial connected super capacitor module pressure module is characterized in that: this module comprise switching device (
SW), high frequency transformer (
T), rectifier diode (
D c), electric capacity of voltage regulation (
C t), feedback diode (
D f) and control circuit (
C), wherein:
Said high frequency transformer (
T) form by first side winding and secondary side winding, control circuit (
C) comprise voltage detecting interface and switching device driving interface;
Said high frequency transformer (
T) in first side winding end of the same name and the serial connected super capacitor module the monomer ultracapacitor (
C n ) the anodal connection, different name end and switching device (
SW) drain electrode
DConnect, switching device (
SW) source electrode
SWith the monomer ultracapacitor (
C n ) the negative pole connection, control circuit (
C) voltage detecting interface and monomer ultracapacitor (
C n ) parallel connection, control circuit (
C) driving interface and switching device (
SW) the control utmost point
GConnect, high frequency transformer (
T) secondary side winding through rectifier diode (
D c) and electric capacity of voltage regulation (
C t) and feedback diode (
D f) parallel connection.
2. serial connected super capacitor module pressure module according to claim 1 is characterized in that: described switching device (
SW) be the semiconductor switch pipe of electric power FET MOSFET, power transistor GTR or insulated gate bipolar transistor IGBT; Described rectifier diode (
D c) and feedback diode (
D f) be Schottky diode or Ultrafast recovery diode.
3. serial connected super capacitor module pressure module according to claim 1 is characterized in that: said high frequency transformer (
T) no-load voltage ratio be 1:K, wherein 1<k<n, N are monomer ultracapacitor quantity in the serial connected super capacitor module, and K is big more, and pressure rate is fast more.
4. ultracapacitor pressure-equalizing device that is made up of the described serial connected super capacitor of claim 1 module pressure module is characterized in that: each the monomer ultracapacitor in the serial connected super capacitor module (
C n ) parallelly connected with a pressure module in this device; Feedback diode (
D f) anode be connected the monomer ultracapacitor parallel connection pressure module that links to each other with this monomer super capacitor anode feedback diode (
D f) negative electrode on, feedback diode (
D f) negative electrode be connected with the feedback diode of the parallelly connected pressure module of the anodal monomer ultracapacitor that links to each other of this monomer ultracapacitor (
D f) anode on.
5. ultracapacitor pressure-equalizing device according to claim 4 is characterized in that: first monomer ultracapacitor in the serial connected super capacitor module (
C 1) in the parallelly connected pressure module feedback diode (
D f) negative electrode insert charge circuit again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205027248U CN202444330U (en) | 2011-12-07 | 2011-12-07 | Voltage-sharing modules and voltage-sharing devices of series super-capacitor module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205027248U CN202444330U (en) | 2011-12-07 | 2011-12-07 | Voltage-sharing modules and voltage-sharing devices of series super-capacitor module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444330U true CN202444330U (en) | 2012-09-19 |
Family
ID=46825760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205027248U Expired - Fee Related CN202444330U (en) | 2011-12-07 | 2011-12-07 | Voltage-sharing modules and voltage-sharing devices of series super-capacitor module group |
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| Country | Link |
|---|---|
| CN (1) | CN202444330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403801A (en) * | 2011-12-07 | 2012-04-04 | 东南大学 | Voltage-sharing module and voltage-sharing device for serial super capacitor module |
| CN109728577A (en) * | 2017-10-27 | 2019-05-07 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
-
2011
- 2011-12-07 CN CN2011205027248U patent/CN202444330U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403801A (en) * | 2011-12-07 | 2012-04-04 | 东南大学 | Voltage-sharing module and voltage-sharing device for serial super capacitor module |
| CN109728577A (en) * | 2017-10-27 | 2019-05-07 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
| CN109728577B (en) * | 2017-10-27 | 2024-05-14 | 致茂电子(苏州)有限公司 | Power supply system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120919 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |