CN104466918A - Energy storage battery polarity reverse connection protective circuit and recognition method thereof - Google Patents
Energy storage battery polarity reverse connection protective circuit and recognition method thereof Download PDFInfo
- Publication number
- CN104466918A CN104466918A CN201410671277.7A CN201410671277A CN104466918A CN 104466918 A CN104466918 A CN 104466918A CN 201410671277 A CN201410671277 A CN 201410671277A CN 104466918 A CN104466918 A CN 104466918A
- Authority
- CN
- China
- Prior art keywords
- energy
- storage battery
- branch road
- voltage
- control system
- 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.)
- Granted
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Protection Of Static Devices (AREA)
Abstract
The invention discloses an energy storage battery polarity reverse connection protective circuit and a recognition method thereof. The circuit comprises an energy storage battery, a switching power supply branch circuit, an energy storage converter branch circuit, a DC voltage monitoring branch circuit and a relay, wherein the switching power supply branch circuit, the energy storage converter branch circuit and the DC voltage monitoring branch circuit are connected with the energy storage battery, and the relay is arranged between the energy storage converter branch circuit and the DC voltage monitoring branch circuit. The DC voltage monitoring branch circuit is further connected with the switching power supply branch circuit. The relay comprises a normally open contact J1 and a relay coil which are matched to be arranged. By means of the energy storage battery polarity reverse connection protective circuit and the recognition method thereof, the defects that damage is likely to happen, the maintaining difficulty is large and the power distribution reliability is poor in the prior art can be overcome, and therefore the advantages of being not prone to being damaged, small in maintaining difficulty and high in power distribution reliability can be achieved.
Description
Technical field
The present invention relates to the application that energy-storage battery is load supplying, particularly, relate to a kind of energy-storage battery reverse polarity protection circuit and recognition methods.
Background technology
Energy-storage system is increasingly extensive in the application in the field such as micro-grid system and electric automobile, as the proper use of great attention being more and more subject to people of the most crucial parts-energy-storage battery of energy-storage system.Energy-storage battery mainly refers to lead acid accumulator and lithium ion battery; these two kinds of energy-storage batteries generally can not reversed polarity place in circuit; otherwise the reverse short circuit of energy-storage battery may be caused; thus cause energy-storage battery heavy-current discharge; even cause fire or blast; therefore, need to carry out protection to error-polarity connection to energy-storage battery.Usually fuse and energy-storage battery are connected in series, when energy-storage battery is produced super-large current by reversal connection, this electric current makes fuse blows; thus protection energy-storage battery can not damage; but need to change fuse, both can produce hardware loss, and also can affect the normal power supply of energy-storage system.
Realizing in process of the present invention, inventor finds at least to exist in prior art fragile, the defect such as maintenance difficulties is large and power supply reliability is poor.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of energy-storage battery reverse polarity protection circuit, to realize the advantage not fragile, maintenance difficulties is little and power supply reliability is high.
The second object of the present invention is, proposes the recognition methods of a kind of energy-storage battery protection to error-polarity connection.
For achieving the above object, the technical solution used in the present invention is: a kind of energy-storage battery reverse polarity protection circuit, comprise energy-storage battery, the Switching Power Supply branch road be connected with described energy-storage battery respectively, energy storage converter branch road and direct voltage monitor branch road, and are arranged on described energy storage converter branch road and direct voltage and monitor relay between branch road; Described direct voltage monitoring branch road is also connected with Switching Power Supply branch road, and described relay comprises the normally opened contact J1 and relay coil that are equipped with.
Further, described Switching Power Supply branch road, comprises the single-phase rectification bridge and classical reverse exciting switching voltage regulator that are connected with described energy-storage battery successively; Described single-phase rectification bridge is also monitored branch road with direct voltage and is connected.
Further, described energy storage converter branch road comprises the energy storage inverter main circuit and load that are connected with energy-storage battery successively, and normally opened contact J1 is connected between the negative pole of energy-storage battery and energy storage inverter main circuit.
Further, described direct voltage monitoring branch road, mainly comprises the direct current voltage sensor be connected with energy-storage battery and Switching Power Supply branch road respectively, and the comparator, single-chip computer control system and the Darlington transistor that are connected with described direct current voltage sensor successively; Described Darlington transistor is connected with relay coil.
Further, described direct voltage monitoring branch road, mainly also comprises the warning circuit be connected with described single-chip computer control system.
Meanwhile, another technical scheme that the present invention adopts is: a kind of energy-storage battery protection to error-polarity connection recognition methods based on above-described energy-storage battery reverse polarity protection circuit, comprising:
Energy-storage battery connects access terminal "+" and "-", and "+" is connected single-phase rectification bridge and direct current voltage sensor respectively with "-" terminal;
For single-phase rectification bridge, no matter whether correctly energy-storage battery is connected to the polarity of "+" and "-" terminal, after single-phase rectification bridge rectification, all can export positive direct voltage, for classical reverse exciting switching voltage regulator provides power supply, single-chip computer control system can normally be worked;
For direct current voltage sensor, it detects the terminal voltage of energy-storage battery, and its output voltage values and control power source reference ground COM are connected in-phase end and the end of oppisite phase of voltage comparator respectively, compare through over-voltage comparator; When the direct current voltage sensor output voltage values of in-phase end is higher than during with reference to ground COM, wiring is correct, and the controlling alarm end of single-chip computer control system is high level, and warning circuit is not reported to the police; When the direct current voltage sensor output voltage values of in-phase end is lower than during with reference to ground COM, wiring error, the controlling alarm end of single-chip computer control system is low level, and warning circuit is reported to the police;
When energy-storage battery wiring is correct, the Control end of single-chip computer control system is high level, Darlington transistor conducting, powering load under the control of single-chip computer control system;
When energy-storage battery wiring error, the Control end of single-chip computer control system is low level, and Darlington transistor turns off, and energy storage inverter main circuit cannot obtain input direct voltage, can not form energy-storage battery error-polarity connection loop, and protection energy-storage battery can not damage.
The energy-storage battery reverse polarity protection circuit of various embodiments of the present invention and recognition methods, because this circuit comprises energy-storage battery, the Switching Power Supply branch road be connected with energy-storage battery respectively, energy storage converter branch road and direct voltage monitor branch road, and are arranged on energy storage converter branch road and direct voltage and monitor relay between branch road; Direct voltage monitoring branch road is also connected with Switching Power Supply branch road, and relay comprises the normally opened contact J1 and relay coil that are equipped with; Can prevent energy-storage battery from damaging due to error-polarity connection, can report to the police simultaneously; Thus the defect fragile in prior art, maintenance difficulties is large and power supply reliability is poor can be overcome, to realize the advantage not fragile, maintenance difficulties is little and power supply reliability is high.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the electronic schematic diagram of energy-storage battery reverse polarity protection circuit of the present invention.
In FIG, comprise: 1. energy-storage battery, 2.+positive polarity binding post, 3. – negative polarity binding post, 4. single-phase rectification bridge, 5. classical reverse exciting switching voltage regulator, 6. one of the output control voltage of the classical reverse exciting switching voltage regulator of+15V, for direct current voltage sensor is powered, 7. the output control voltage two of the classical reverse exciting switching voltage regulator of+12V, for 12V direct current relay coil power supply, 8. the output control voltage three of the classical reverse exciting switching voltage regulator of+5V, for single-chip computer control system is powered, 9. the output control voltage four of the classical reverse exciting switching voltage regulator of – 15V, for direct current voltage sensor is powered, 10. the output control voltage of the classical reverse exciting switching voltage regulator of COM publicly, the normally opened contact of 11. J1 direct current relays, 12. energy storage inverter main circuits, 13. loads, 14. direct current voltage sensors, 15. voltage comparators, such as LM339, 16. pull-up resistor R3=10k Ω, 17. single-chip computer control systems, 18. IN polarity of voltage inputs, 19. OUT1 Control ends, 20. OUT2 controlling alarm ends, 21. LED warning light-emitting diodes, 22. current-limiting resistance R4=3 k Ω, 23. T1, T2 Darlington form triode, be all 9013, 24. shunt resistance R1=R2=10 k Ω, 25. relay coils, it is that 12V powers, 26. sustained diode 1, it is 1N4148, 27.D2 negative voltage clamp diode, it is RB715F, 28. current-limiting resistance R5=1 k Ω.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, as shown in Figure 1, a kind of energy-storage battery reverse polarity protection circuit and recognition methods is provided.
The present invention adopts energy-storage battery access terminal polarity of voltage testing circuit and relay normally open contact to be connected in series the method for energy-storage battery, ensure that energy-storage battery energy storage inverter main circuit when error-polarity connection can not obtain electric, thus ensure that energy-storage battery can not cause any loss of energy-storage system because of error-polarity connection mistake.
The object of this invention is to provide a kind of energy-storage battery reverse polarity protection circuit and recognition methods; energy-storage system for micro-capacitance sensor or electric automobile generally all requires that multiple energy-storage battery carries out being composed in series energy-storage battery string; to make the DC input voitage of energy storage converter higher; in order to obtain larger power; then need to carry out parallel connection to multiple above-mentioned identical energy-storage battery string, thus composition energy-storage battery array.The error-polarity connection of the present invention to energy-storage battery string or energy-storage battery array is protected, and can prevent energy-storage battery from damaging due to error-polarity connection, can report to the police simultaneously, convenient for maintaining or commissioning staff's Timeliness coverage error-polarity connection mistake.
The technical solution adopted in the present invention is, a kind of energy-storage battery reverse polarity protection circuit and recognition methods, and energy-storage battery connects access terminal "+" and "-", and "+" is connected single-phase rectification bridge and direct current voltage sensor respectively with "-" terminal.For single-phase rectification bridge, whether the polarity being connected to "+" and "-" terminal regardless of energy-storage battery is correct, after single-phase rectification bridge rectification, capital exports positive direct voltage, thus provide power supply for classical reverse exciting switching voltage regulator, this Switching Power Supply produces the various control supply voltages needed for single-chip computer control system, and single-chip computer control system can normally be worked.
For direct current voltage sensor, its output voltage values with control power source reference compare, the output level of comparator is input to the IN end of single-chip computer control system, if the output of comparator is high level, then the positive pole of energy-storage battery connects "+" terminal and is connected "-" terminal with the negative pole of energy-storage battery, show that wiring is correct, the controlling alarm end OUT2 of single-chip computer control system is high level, and LED alarm lamp does not work; If the output of comparator is low level, then the positive pole of energy-storage battery connects "-" terminal and is connected "+" terminal with the negative pole of energy-storage battery, and show wiring error, the controlling alarm end OUT2 of single-chip computer control system is low level, and LED alarm lamp is lighted, and reports to the police.
When energy-storage battery wiring is correct, the Control end OUT1 of single-chip computer control system is high level, form triode all conductings of Darlington form, therefore relay coil obtains electric, the normally opened contact adhesive of relay, so energy storage inverter main circuit has had input direct voltage, can powering load under the control of single-chip computer control system.
When energy-storage battery wiring error; the Control end OUT1 of single-chip computer control system is low level; the triode of forming Darlington form is all turn off; relay coil can not get voltage; the normally opened contact of relay disconnects always; so energy storage inverter main circuit cannot obtain input direct voltage; therefore energy storage converter cannot work; because energy-storage battery is connected with the normally opened contact of relay; so energy-storage battery error-polarity connection loop can not be formed, thus protect energy-storage battery and can not damage.
As shown in Figure 1, energy-storage battery, single-phase rectification bridge are connected successively with classical reverse exciting switching voltage regulator, and energy-storage battery, energy storage inverter main circuit are connected successively with load, and energy-storage battery is also connected with direct current voltage sensor, direct current voltage sensor, comparator is connected successively with single-chip computer control system, the in-phase input end of comparator is connected with direct current voltage sensor, the inverting input of comparator is COM end, the output of comparator is connected with the polarity of voltage input of single-chip computer control system through resistance R5, resistance R5 is connected with the negative electrode of diode D2 with the common port of single-chip computer control system, and connect+5V power supply through resistance R3, the anode of diode D2 is COM end, the controlling alarm end of single-chip computer control system connects+5V power supply through LED and resistance R4 successively, the negative electrode of LED is connected with the controlling alarm end of single-chip computer control system, the Control end of single-chip computer control system is connected with the base stage of triode T1, the Control end of single-chip computer control system is connected with the base stage of triode T2 through resistance R1, the collector electrode of triode T1, the collector electrode of triode T2 are connected with the anode of diode D1, the emitter of triode T1 is connected with the base stage of triode T2, the base stage of triode T2 connects the emitter of triode T2 after resistance R2, the transmitting very COM end of triode T2, normally opened contact J1 is connected with between the negative pole and energy storage inverter main circuit of energy-storage battery, normally opened contact J1 is connected with relay coil, one termination+12V power supply of relay coil and the negative electrode of diode D1, the anode of another terminating diode D1 of relay coil.
Wherein, energy-storage battery refers to that multiple energy-storage battery carries out the energy-storage battery string be composed in series, to make the DC input voitage of energy storage converter higher.In order to obtain larger power, parallel connection can be carried out to multiple identical energy-storage battery string, thus composition energy-storage battery array.The voltage range of this energy-storage battery is 150V to 360V, and namely the monomer energy-storage battery of 12V is connected at most 25 joints, and minimum series connection 12 saves, to ensure that classical reverse exciting switching voltage regulator can normally work.When the voltage of energy-storage battery is lower than 150V, classical reverse exciting switching voltage regulator cisco unity malfunction, therefore now the normally opened contact J1 of 12V direct current relay always can not adhesive, so can not produce reversal connection loop when energy-storage battery error-polarity connection, energy-storage battery can not damage; Due to the restricted number of series connection monomer energy-storage battery, so the ceiling voltage of energy-storage battery can not more than 360V, to ensure that classical reverse exciting switching voltage regulator can normally work.
As shown in Figure 1, energy-storage battery connects access terminal "+" and "-", and "+" is connected single-phase rectification bridge and direct current voltage sensor respectively with "-" terminal.
For single-phase rectification bridge, whether the polarity being connected to "+" and "-" terminal regardless of energy-storage battery is correct, after single-phase rectification bridge rectification, capital exports positive direct voltage, thus provide power supply for classical reverse exciting switching voltage regulator, + the 15V ,+12V of the generation of this Switching Power Supply needed for single-chip computer control system, the various control supply voltage of+5V ,-15V, make single-chip computer control system normally to work.
For direct current voltage sensor, it detects the terminal voltage of energy-storage battery, its output voltage values is connected voltage comparator (such as LM339 respectively with control power source reference ground COM, it is powered by+15V ,-15V) in-phase end and end of oppisite phase, compare through over-voltage comparator, the output of comparator carries out current limliting through resistance R5, is pulled upward to+5V through R3, through negative voltage clamp diode D2 connection control power source reference ground COM.When the direct current voltage sensor output voltage values of in-phase end is higher than during with reference to ground COM, voltage comparator output+5V, i.e. high level, show that the positive pole of energy-storage battery connects "+" terminal and is connected "-" terminal with the negative pole of energy-storage battery, so wiring is correct, the controlling alarm end of single-chip computer control system is high level, and LED alarm lamp does not work.When the direct current voltage sensor output voltage values of in-phase end is lower than during with reference to ground COM, the output of voltage comparator is negative voltage, now this negative voltage is through resistance R5 current limliting, negative voltage clamp diode D2 conducting, by voltage clamping to close to 0 voltage, i.e. low level, this shows that the positive pole of energy-storage battery connects "-" terminal and is connected "+" terminal with the negative pole of energy-storage battery, so wiring error, the controlling alarm end of single-chip computer control system is low level, LED alarm lamp is lighted, and reports to the police.
When energy-storage battery wiring is correct, the Control end of single-chip computer control system is high level, form T1, T2 triode all conductings of Darlington form, therefore 12V direct current relay coil obtains electric, the normally opened contact J1 adhesive of relay, so energy storage inverter main circuit has had input direct voltage, can powering load under the control of single-chip computer control system.
When energy-storage battery wiring error; the Control end of single-chip computer control system is low level; T1, T2 triode of forming Darlington form is all turn off; 12V direct current relay coil can not get voltage; the normally opened contact J1 of relay disconnects always; so energy storage inverter main circuit cannot obtain input direct voltage; therefore energy storage converter cannot work; because energy-storage battery is connected with the normally opened contact J1 of 12V direct current relay; so energy-storage battery error-polarity connection loop can not be formed, thus protect energy-storage battery and can not damage.
The beneficial effect of energy-storage battery reverse polarity protection circuit of the present invention and recognition methods is: adopt relay normally open contact to be connected in series the circuit form of energy-storage battery; no matter whether single-chip computer control system has electricity, can ensure that the energy-storage battery of reverse polarity connection can not be short-circuited and damage.Power under normal circumstances in Switching Power Supply, single-chip computer control system can be protected energy-storage battery error-polarity connection and report to the police, and facilitates field personnel to safeguard.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an energy-storage battery reverse polarity protection circuit, it is characterized in that, comprise energy-storage battery, the Switching Power Supply branch road be connected with described energy-storage battery respectively, energy storage converter branch road and direct voltage monitor branch road, and are arranged on described energy storage converter branch road and direct voltage and monitor relay between branch road; Described direct voltage monitoring branch road is also connected with Switching Power Supply branch road, and described relay comprises the normally opened contact J1 and relay coil that are equipped with.
2. energy-storage battery reverse polarity protection circuit according to claim 1, is characterized in that, described Switching Power Supply branch road, comprises the single-phase rectification bridge and classical reverse exciting switching voltage regulator that are connected with described energy-storage battery successively; Described single-phase rectification bridge is also monitored branch road with direct voltage and is connected.
3. energy-storage battery reverse polarity protection circuit according to claim 1; it is characterized in that; described energy storage converter branch road comprises the energy storage inverter main circuit that is connected with energy-storage battery successively and is responsible for, and normally opened contact J1 is connected between the negative pole of energy-storage battery and energy storage inverter main circuit.
4. the energy-storage battery reverse polarity protection circuit according to any one of claim 1-3, it is characterized in that, described direct voltage monitoring branch road, mainly comprise the direct current voltage sensor be connected with energy-storage battery and Switching Power Supply branch road respectively, and the comparator, single-chip computer control system and the Darlington transistor that are connected with described direct current voltage sensor successively; Described Darlington transistor is connected with relay coil.
5. energy-storage battery reverse polarity protection circuit according to claim 4, is characterized in that, described direct voltage monitoring branch road, mainly also comprises the warning circuit be connected with described single-chip computer control system.
6., based on an energy-storage battery protection to error-polarity connection recognition methods for energy-storage battery reverse polarity protection circuit according to claim 1, it is characterized in that, comprising:
Energy-storage battery connects access terminal "+" and "-", and "+" is connected single-phase rectification bridge and direct current voltage sensor respectively with "-" terminal;
For single-phase rectification bridge, no matter whether correctly energy-storage battery is connected to the polarity of "+" and "-" terminal, after single-phase rectification bridge rectification, all can export positive direct voltage, for classical reverse exciting switching voltage regulator provides power supply, single-chip computer control system can normally be worked;
For direct current voltage sensor, it detects the terminal voltage of energy-storage battery, and its output voltage values and control power source reference ground COM are connected in-phase end and the end of oppisite phase of voltage comparator respectively, compare through over-voltage comparator; When the direct current voltage sensor output voltage values of in-phase end is higher than during with reference to ground COM, wiring is correct, and the controlling alarm end of single-chip computer control system is high level, and warning circuit is not reported to the police; When the direct current voltage sensor output voltage values of in-phase end is lower than during with reference to ground COM, wiring error, the controlling alarm end of single-chip computer control system is low level, and warning circuit is reported to the police;
When energy-storage battery wiring is correct, the Control end of single-chip computer control system is high level, Darlington transistor conducting, powering load under the control of single-chip computer control system;
When energy-storage battery wiring error, the Control end of single-chip computer control system is low level, and Darlington transistor turns off, and energy storage inverter main circuit cannot obtain input direct voltage, can not form energy-storage battery error-polarity connection loop, and protection energy-storage battery can not damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671277.7A CN104466918B (en) | 2014-11-21 | 2014-11-21 | A kind of energy-storage battery reverse polarity protection circuit and recognition methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671277.7A CN104466918B (en) | 2014-11-21 | 2014-11-21 | A kind of energy-storage battery reverse polarity protection circuit and recognition methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466918A true CN104466918A (en) | 2015-03-25 |
| CN104466918B CN104466918B (en) | 2017-06-30 |
Family
ID=52912517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671277.7A Active CN104466918B (en) | 2014-11-21 | 2014-11-21 | A kind of energy-storage battery reverse polarity protection circuit and recognition methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104466918B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026223A (en) * | 2016-05-17 | 2016-10-12 | 汪大明 | Device for replacing common battery with cellphone battery |
| CN106655145A (en) * | 2016-11-17 | 2017-05-10 | 深圳市科陆电子科技股份有限公司 | Battery bus voltage reverse connection protection circuit |
| CN108572319A (en) * | 2017-03-09 | 2018-09-25 | 深圳市三诺声智联股份有限公司 | Batteries in parallel connection set detecting device and method |
| CN108583322A (en) * | 2018-04-18 | 2018-09-28 | 南京越博动力系统股份有限公司 | The anti-reverse method of new-energy automobile five in one controller and its device |
| CN108631689A (en) * | 2017-03-15 | 2018-10-09 | 上海骐宏电驱动科技有限公司 | Driving device and its power source reverse connection protection circuit |
| CN114421580A (en) * | 2022-03-30 | 2022-04-29 | 北京胜能能源科技有限公司 | Control device and control method for realizing butt joint of power battery and energy storage system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369644A (en) * | 2011-06-08 | 2012-03-07 | 华为技术有限公司 | Control circuit for preventing battery group from being reversely connected and power supply system for base station |
| CN103825266A (en) * | 2013-12-31 | 2014-05-28 | 江苏嘉钰新能源技术有限公司 | Vehicle-mounted charger rear-stage output anti-reversal connection circuit |
| CN203774784U (en) * | 2014-04-09 | 2014-08-13 | 浙江科瑞普电气有限公司 | Bus anti-reversed wiring protection circuit of photovoltaic inverter |
-
2014
- 2014-11-21 CN CN201410671277.7A patent/CN104466918B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102369644A (en) * | 2011-06-08 | 2012-03-07 | 华为技术有限公司 | Control circuit for preventing battery group from being reversely connected and power supply system for base station |
| CN103825266A (en) * | 2013-12-31 | 2014-05-28 | 江苏嘉钰新能源技术有限公司 | Vehicle-mounted charger rear-stage output anti-reversal connection circuit |
| CN203774784U (en) * | 2014-04-09 | 2014-08-13 | 浙江科瑞普电气有限公司 | Bus anti-reversed wiring protection circuit of photovoltaic inverter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026223A (en) * | 2016-05-17 | 2016-10-12 | 汪大明 | Device for replacing common battery with cellphone battery |
| CN106655145A (en) * | 2016-11-17 | 2017-05-10 | 深圳市科陆电子科技股份有限公司 | Battery bus voltage reverse connection protection circuit |
| CN106655145B (en) * | 2016-11-17 | 2018-12-07 | 深圳市科陆电子科技股份有限公司 | A kind of battery power feeds electric voltage reverse-connection protection circuit |
| CN108572319A (en) * | 2017-03-09 | 2018-09-25 | 深圳市三诺声智联股份有限公司 | Batteries in parallel connection set detecting device and method |
| CN108631689A (en) * | 2017-03-15 | 2018-10-09 | 上海骐宏电驱动科技有限公司 | Driving device and its power source reverse connection protection circuit |
| CN108631689B (en) * | 2017-03-15 | 2024-04-19 | 永光鑫润(北京)电子有限责任公司 | Driving device and power supply reverse connection protection circuit thereof |
| CN108583322A (en) * | 2018-04-18 | 2018-09-28 | 南京越博动力系统股份有限公司 | The anti-reverse method of new-energy automobile five in one controller and its device |
| CN114421580A (en) * | 2022-03-30 | 2022-04-29 | 北京胜能能源科技有限公司 | Control device and control method for realizing butt joint of power battery and energy storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104466918B (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104466918A (en) | Energy storage battery polarity reverse connection protective circuit and recognition method thereof | |
| CN101447666B (en) | Power supply system and power overvoltage safety protection control method | |
| CN102369644B (en) | Control circuit for preventing battery group from being reversely connected and power supply system for base station | |
| CN102067421B (en) | A power apparatus for a high voltage electrical power system | |
| CN105449633A (en) | Over/under voltage protection system of electrical equipment | |
| CN108736567A (en) | Power supply system for electric power monitoring | |
| JP6397673B2 (en) | Control method of power supply control device | |
| CN209402227U (en) | A kind of lithium battery group energy-storage system comprising multiple uninterruptible power supplies | |
| CN104037752A (en) | Sensor power-supplying device used for ship | |
| CN204334072U (en) | The battery pack of energy isolated fault battery module | |
| CN207426665U (en) | Current transformer and its secondary side protective arrangement for limiting output voltage | |
| CN207426666U (en) | Current transformer and its secondary side open-circuit protecting device | |
| CN104065043B (en) | Battery under-voltage protection and display circuit | |
| CN202917939U (en) | Short circuit protection circuit | |
| CN105048301A (en) | Intelligent power box capable of detecting output voltage and self-repairing faults | |
| CN205960779U (en) | P type monitoring formula switching power | |
| CN201270275Y (en) | Bridging device suitable for replacing lagging accumulator | |
| CN204967410U (en) | Zero -power direct current UPS switched systems | |
| CN204652009U (en) | For the emergency electric system of communication base station | |
| CN209313423U (en) | One kind two and more battery pack reverse-connection protection circuits | |
| US20110140675A1 (en) | Charging device for different batteries | |
| CN110994761A (en) | Emergency power supply for wind power control storage | |
| CN206226083U (en) | A kind of grading system battery charging overvoltage protection circuit | |
| CN201750182U (en) | Direct current power supply cabinet with voltage-reducing protection function | |
| CN201174603Y (en) | Solar inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |