CN206422600U - Charging pile power supply power-fail holding circuit - Google Patents
Charging pile power supply power-fail holding circuit Download PDFInfo
- Publication number
- CN206422600U CN206422600U CN201720110429.5U CN201720110429U CN206422600U CN 206422600 U CN206422600 U CN 206422600U CN 201720110429 U CN201720110429 U CN 201720110429U CN 206422600 U CN206422600 U CN 206422600U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- power supply
- super capacitor
- charging pile
- 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.)
- Active
Links
Classifications
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Abstract
The utility model discloses charging pile power supply power-fail holding circuit, including the DC DC reduction voltage circuits being connected with power supply, the DC DC reduction voltage circuits are transmitted to equalizing circuit after supply voltage is depressured, the equalizing circuit is connected with super capacitor, the super capacitor is used for the discharge and recharge for realizing voltage, the super capacitor is connected with mu balanced circuit, the mu balanced circuit realizes that the voltage stabilizing after super capacitor discharge and recharge is exported, the mu balanced circuit is connected with DC DC booster circuits, the boost in voltage that the DC DC booster circuits export mu balanced circuit is the supply voltage for mainboard electricity consumption.Using 3 super capacitors, both ensured the time that power down is kept, PCB space will not be taken again.The output voltage values of super capacitor are exported using the voltage stabilizing of voltage stabilizing circuit.Detect source end power down and be less than 8V, be momentarily turned off liquid crystal display, close the process of larger power consumption, it is ensured that power down time.Using unilateral diode, it is ensured that one-way only operation when normal power supply and power down.
Description
Technical field
The utility model is related to charging electric vehicle technical field, and in particular to charging pile power supply power-fail holding circuit.
Background technology
It is unexpected that power down accident occurs in charging process, such as charging pile equipment, information can be caused to omit, it is impossible to know
Charge information, loss is brought to company.
Power down keeps scheme using the common super capacitor of existing market, and 3 super electricity are taken under existing board area
Hold the mode boosted again after voltage stabilizing and export 12V sources terminal voltage, controllable super capacitor discharge and recharge extends the use longevity of super capacitor
Life, and obtain power down information in power down moment.
Existing market is numerous using the scheme of super capacitor, and major part is using voltage-stabiliser tube and resistance mode come balanced voltage stabilizing.
Although using such scheme can power down keep a period of time, there are still some drawbacks：
1. 3 super capacitors can not be used to realize 12V output, because the voltage of current super capacitor is fixed 2.7V, 3
The magnitude of voltage of series connection also only has 8V or so, if reaching 12V stabilization, it is necessary to just can be with using 5.
2. the very first time power down information can not be detected, is typically all that, in the detecting of CPU ends, can so cause time-lag, and
Unwanted process can not be closed the very first time, to increase the retention time.
Utility model content
To solve the deficiency that prior art is present, the utility model discloses charging pile power supply power-fail holding circuit, this reality
While with new use source of stable pressure, using boost chip ensure output voltage stabilization, while controllable super capacitor charging and
Obtain power down information.
To achieve the above object, concrete scheme of the present utility model is as follows：
Charging pile power supply power-fail holding circuit, including the DC-DC reduction voltage circuits being connected with power supply, the DC-DC decompressions electricity
Road is transmitted to equalizing circuit after supply voltage is depressured, and the equalizing circuit is connected with super capacitor, the super capacitor
Discharge and recharge for realizing voltage, the super capacitor is connected with mu balanced circuit, and the mu balanced circuit realizes super capacitor charge and discharge
Voltage stabilizing output after electricity, the mu balanced circuit is connected with DC-DC booster circuit, and the DC-DC booster circuit is defeated by mu balanced circuit
The boost in voltage gone out is the supply voltage for mainboard electricity consumption.
Further, the power supply of the confession mainboard electricity consumption is also connected with detection circuit, and the detection circuit passes through controller
It is connected with liquid crystal display.
Further, the DC-DC reduction voltage circuits are used to realize and need the stable super capacitor that is output as of 12V supply voltage
The 8V voltages asked, the DC-DC reduction voltage circuits output end is also associated with preventing pouring in down a chimney unilateral diode during electric discharge.
Further, the equalizing circuit realizes that the equilibrium to voltage is filled by being constituted with the resistance that super capacitor is in parallel
Electricity.
Further, the quantity of the super capacitor is three, and each super capacitor is with corresponding equalizing circuit and surely
Volt circuit is in parallel, the stable output 8V supply voltages of the mu balanced circuit.
Further, the DC-DC booster circuit is used for 8V boost in voltage to 12V, is exported by unilateral diode
12V, for mainboard electricity consumption.
Further, the detection circuit is used to detect supply voltage, when supply voltage is less than 8V, during output information is given
Central processor CPU, central processor CPU closes liquid crystal display.
The beneficial effects of the utility model：
1. using 3 super capacitors, both ensured the time that power down is kept, PCB space will not be taken again.
2. the output voltage values of super capacitor are exported using the voltage stabilizing of voltage stabilizing circuit.
3. detecting source end power down is less than 8V, liquid crystal display is momentarily turned off, the process of larger power consumption is closed, it is ensured that during power down
Between.
4. use unilateral diode, it is ensured that one-way only operation when normal power supply and power down.
Brief description of the drawings
Fig. 1 integrated circuit block diagrams of the present utility model；
Fig. 2 DC-DC reduction voltage circuit figures；
The equalizing circuit and mu balanced circuit figure of Fig. 3 super capacitors；
Fig. 4 DC-DC reduction voltage circuit figures；
Fig. 5 detects circuit diagram；
Embodiment：
The utility model is described in detail below in conjunction with the accompanying drawings：
As shown in figure 1,12V power supplys source voltage is transformed to super capacitor charging voltage 8V by DC-DC reduction voltage circuits, detection
When detecting is less than 8V, central controller closes liquid crystal display, stable output 8V voltages, 8V voltages DCDC after super capacitor discharge and recharge
12V is boosted to, 12V is exported by unilateral diode, for mainboard electricity consumption.
While the application uses source of stable pressure, ensure the voltage stabilization of output using boost chip, while controllable super electricity
Capacity charge and acquisition power down information.
As shown in Fig. 2 first using 8V voltages are exported after the 12V power supply DC-DC reduction voltage circuits of source, 8V voltages are 3 super
The magnitude of voltage of capacitor requirements, has diode to pour in down a chimney when preventing electric discharge between+8V and+8VA.
As shown in figure 3,3 super capacitor equalizaing charges, while voltage stabilizing exports 8V discharge voltages, use resistance and TL431
Mode is balanced and prevents immediate current of boot-strap excessive, as shown in figure 4, input signal is super capacitor discharge voltage, uses DC-DC
Booster circuit exports 12V power supplys, and the 12V voltages of output are directly used for mainboard, and DC-DC booster circuit is boosted to using LM3481
The 12V power supplys of mainboard demand, and without using super capacitor electricity when preventing from pouring in down a chimney using diode and ensuring normal powered.
As shown in figure 5, detecting 12V power supply source ends whether there is, it is ensured that the very first time detects 12V power supplys and disappeared or low
When 8V, output information is to CPU, and CPU starts power down and keeps scheme immediately, and storage action and closing liquid crystal display etc. are opened in time and is saved
Power mode, extends the retention time.
The utility model takes the stable output 12V power supplys of decompression charging pressure-boosting discharge mode using 3 super capacitors, simultaneously
Detect power down information.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (7)
1. charging pile power supply power-fail holding circuit, it is characterized in that, including the DC-DC reduction voltage circuits being connected with power supply, the DC-DC
Reduction voltage circuit is transmitted to equalizing circuit after supply voltage is depressured, and the equalizing circuit is connected with super capacitor, described super
Level electric capacity is used for the discharge and recharge for realizing voltage, and the super capacitor is connected with mu balanced circuit, and the mu balanced circuit realizes super electricity
Hold the voltage stabilizing output after discharge and recharge, the mu balanced circuit is connected with DC-DC booster circuit, the DC-DC booster circuit is by voltage stabilizing
The boost in voltage of circuit output is the supply voltage for mainboard electricity consumption.
2. charging pile power supply power-fail holding circuit as claimed in claim 1, it is characterized in that, the power supply of the confession mainboard electricity consumption is also
It is connected with detection circuit, the detection circuit is connected by controller with liquid crystal display.
3. charging pile power supply power-fail holding circuit as claimed in claim 1, it is characterized in that, the DC-DC reduction voltage circuits are used for
Realize that, by the stable 8V voltages for being output as super capacitor demand of 12V supply voltage, the DC-DC reduction voltage circuits output end also connects
Being connected to prevents from pouring in down a chimney unilateral diode during electric discharge.
4. charging pile power supply power-fail holding circuit as claimed in claim 1, it is characterized in that, the equalizing circuit by with super electricity
Hold the resistance composition being in parallel, realize the equalizaing charge to voltage.
5. charging pile power supply power-fail holding circuit as claimed in claim 1, it is characterized in that, the quantity of the super capacitor is three
Individual, each super capacitor is in parallel with corresponding equalizing circuit and mu balanced circuit, the stable output 8V power supplys of the mu balanced circuit
Voltage.
6. charging pile power supply power-fail holding circuit as claimed in claim 1, it is characterized in that, the DC-DC booster circuit is used for
By 8V boost in voltage to 12V, 12V is exported by unilateral diode, for mainboard electricity consumption.
7. charging pile power supply power-fail holding circuit as claimed in claim 2, it is characterized in that, the detection circuit is used to detect electricity
Source voltage, when supply voltage is less than 8V, output information closes liquid crystal display to central processor CPU, central processor CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720110429.5U CN206422600U (en) | 2017-02-06 | 2017-02-06 | Charging pile power supply power-fail holding circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720110429.5U CN206422600U (en) | 2017-02-06 | 2017-02-06 | Charging pile power supply power-fail holding circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422600U true CN206422600U (en) | 2017-08-18 |
Family
ID=59569804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720110429.5U Active CN206422600U (en) | 2017-02-06 | 2017-02-06 | Charging pile power supply power-fail holding circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422600U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111130210A (en) * | 2020-01-06 | 2020-05-08 | 北京中电飞华通信有限公司 | Main and standby power supply management system |
| CN111231866A (en) * | 2019-12-31 | 2020-06-05 | 武汉长江通信智联技术有限公司 | Vehicle-mounted power supply circuit and method for realizing power failure protection function based on super capacitor |
| CN112150976A (en) * | 2019-06-28 | 2020-12-29 | 格科微电子（上海）有限公司 | Power-down screen cleaning method for liquid crystal display screen |
-
2017
- 2017-02-06 CN CN201720110429.5U patent/CN206422600U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112150976A (en) * | 2019-06-28 | 2020-12-29 | 格科微电子（上海）有限公司 | Power-down screen cleaning method for liquid crystal display screen |
| CN111231866A (en) * | 2019-12-31 | 2020-06-05 | 武汉长江通信智联技术有限公司 | Vehicle-mounted power supply circuit and method for realizing power failure protection function based on super capacitor |
| CN111130210A (en) * | 2020-01-06 | 2020-05-08 | 北京中电飞华通信有限公司 | Main and standby power supply management system |
| CN111130210B (en) * | 2020-01-06 | 2023-05-23 | 北京中电飞华通信有限公司 | Main and standby power management system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206422600U (en) | Charging pile power supply power-fail holding circuit | |
| CN205811597U (en) | A kind of electric automobile low tension management system | |
| CN103580272A (en) | Time-delay circuit for outage of power source | |
| CN106410960A (en) | Power supply circuit, power supply method and power-consumption information acquisition terminal manufactured thereby | |
| CN106972616A (en) | The system and method that supplies power with double circuit of card swiping terminal supply pin in intelligent POS | |
| CN206894500U (en) | A kind of voltage conversion circuit, power supply circuit and LCD TV | |
| CN103078615A (en) | Delay circuit and method thereof | |
| CN102468657B (en) | Charging circuit of standby battery | |
| CN207819482U (en) | A kind of charge-discharge circuit and device | |
| CN206323295U (en) | A kind of power circuit suitable for RTU | |
| CN206835023U (en) | DC brushless motor detecting and controlling system for Segway Human Transporter | |
| CN206559074U (en) | A kind of power supply circuit and mobile terminal | |
| CN103516029A (en) | Mobile phone charger baby | |
| CN203589785U (en) | Constant current charging and energy storing power supply device | |
| CN206344713U (en) | A kind of electric vehicle motor controller charge/discharge control circuit | |
| CN207052297U (en) | Power-off protection of solid state disk circuit and solid state hard disc | |
| CN202121333U (en) | Standby direct current supply device used for switch | |
| CN101470503A (en) | CMOS chip power supply | |
| CN117498504B (en) | Battery charging, discharging and power supply circuit, operation method and intelligent terminal backup battery | |
| CN204258344U (en) | The charging/discharging apparatus of battery pack | |
| CN205193651U (en) | Instantaneous large current output circuit among low -power circuit | |
| CN202750017U (en) | Power supply circuit | |
| CN203761071U (en) | DC watthour meter for mobile power source | |
| CN212623976U (en) | Real-time clock power supply device for railway computer | |
| CN203616387U (en) | Single-phase electric energy meter with special-purpose power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 250101 Electric Power Intelligent Robot Production Project 101 in Jinan City, Shandong Province, South of Feiyue Avenue and East of No. 26 Road (ICT Industrial Park) Patentee after: National Network Intelligent Technology Co., Ltd. Address before: 250101 Shandong city of Ji'nan province high tech Zone (Lixia District) Xinluo Avenue No. 2008 silver bearing building B block 626 Patentee before: Shandong Luneng Intelligent Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201210 Address after: Room 902, 9 / F, block B, Yinhe building, 2008 Xinluo street, hi tech Zone, Jinan City, Shandong Province Patentee after: Shandong Luneng Software Technology Co.,Ltd. intelligent electrical branch Address before: 250101 power intelligent robot production project 101 south of Feiyue Avenue and east of No.26 Road (in ICT Industrial Park) in Suncun District of Gaoxin, Jinan City, Shandong Province Patentee before: National Network Intelligent Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 902, 9 / F, block B, Yinhe building, 2008 Xinluo street, hi tech Zone, Jinan City, Shandong Province Patentee after: Shandong luruan Digital Technology Co.,Ltd. smart energy branch Address before: Room 902, 9 / F, block B, Yinhe building, 2008 Xinluo street, hi tech Zone, Jinan City, Shandong Province Patentee before: Shandong Luneng Software Technology Co.,Ltd. intelligent electrical branch |
|
| CP01 | Change in the name or title of a patent holder |