CN206517644U - A kind of short-circuit protection circuit and Solar Street Lighting System - Google Patents
A kind of short-circuit protection circuit and Solar Street Lighting System Download PDFInfo
- Publication number
- CN206517644U CN206517644U CN201720251308.2U CN201720251308U CN206517644U CN 206517644 U CN206517644 U CN 206517644U CN 201720251308 U CN201720251308 U CN 201720251308U CN 206517644 U CN206517644 U CN 206517644U
- Authority
- CN
- China
- Prior art keywords
- short
- circuit
- resistor
- npn triode
- nmos tube
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of short-circuit protection circuit; including NPN triode; NMOS tube; electric capacity; first resistor; NMOS tube is arranged on the current supply circuit between load and power supply; the base stage of NPN triode is connected to receive switching signal with load switch end; the colelctor electrode of NPN triode and the grid of NMOS tube are connected; the grounded emitter of NPN triode; the drain electrode of NMOS tube is connected with the one end loaded and the first end of first resistor, and the second end of first resistor is connected with the source electrode of power supply and NMOS tube, and electric capacity and first resistor are in parallel.As can be seen here, element cost used in this circuit is relatively low, and will not increase the discharging efficiency of discharge loop, when occurring that the safety of place current supply circuit and power supply with fast reaction, can be effectively protected after short circuit, increases the service life.In addition, a kind of Solar Street Lighting System for including the short-circuit protection circuit is also disclosed in the utility model, beneficial effect is ibid.
Description
Technical field
The utility model is related to technical field of solar, more particularly to a kind of short-circuit protection circuit and solar street light system
System.
Background technology
Solar LED street lamp system is made up of solar street lamp controller, solar panel, battery and LED street lamp,
With the development of heliotechnics, solar street light is more and more widely used.Wherein, LED voltage increase and current constants one
Solar street lamp controller defencive function include under-voltage protection, overcurrent protection, short-circuit protection, overheat protector, overvoltage protect
Shield etc., can short-circuit protection be one of basic function of solar street lamp controller, quick when especially load outputs are short-circuit
It is effectively protected controller in itself and battery is to weigh a whether qualified important indicator of solar street lamp controller.The sun
Energy circuit lamp controller is in installation process, if battery is connected on solar street lamp controller by operating personnel first, control
If the load outputs of device processed are not dealt carefully with, it is most likely that by the both positive and negative polarity short circuit of load outputs, due to load output
The voltage at end is higher (reaching as high as 60V), and transcient short circuit time can produce great electric current.If controller protection causes not in time
If short circuit duration is long, it is possible to cells burst can be caused, fire is caused, serious conditions can also set off an explosion.
In the prior art, one 1~5m Ω of load outputs series connection high-power resistance is typically employed in, controller is utilized
In single-chip microcomputer detection resistance two ends voltage, if it exceeds a certain setting value is considered as load short circuits, simultaneously turn off load defeated
Go out the output at end, so as to avoid short circuit for a long time.But the mode of load outputs series resistance can increase the resistance of discharge loop
It is anti-, influence discharging efficiency.
As can be seen here, how when load outputs occur short circuit when, how the output of timely switching off load output end, and
And it is those skilled in the art's urgent problem to be solved not increase the impedance of discharge loop and reduction discharging efficiency.
Utility model content
The purpose of this utility model is to provide a kind of short-circuit protection circuit and Solar Street Lighting System, for when load output
When short circuit occurs for end, can switching off load output end in time output, and do not increase impedance and the reduction electric discharge effect of discharge loop
Rate.
In order to solve the above technical problems, the utility model provides a kind of short-circuit protection circuit, including NPN triode, NMOS
Pipe, electric capacity, first resistor, the NMOS tube is arranged on the current supply circuit between load and power supply, the NPN triode
Base stage be connected to receive switching signal with load switch end, the colelctor electrode of the NPN triode and the grid of the NMOS tube
Connection, the grounded emitter of the NPN triode, one end of drain electrode with the load of the NMOS tube and the of the first resistor
One end is connected, and the second end of the first resistor is connected with the source electrode of the power supply and the NMOS tube, the electric capacity with
The first resistor is in parallel.
Preferably, in addition to second resistance, the second resistance is with the colelctor electrode of the NPN triode and for providing partially
Put the power supply connection of voltage.
Preferably, in addition to 3rd resistor, the 3rd resistor and the load switch end and the base of the NPN triode
Pole is connected.
Preferably, in addition to the 4th resistance, the two ends of the 4th resistance respectively with the negative pole of the power supply and with
The common port connection of the first resistor and the electric capacity.
Preferably, the load switch end is for the signal output part for the controller for controlling the short-circuit protection circuit.
Preferably, the controller is MCU, the signal output part output high level signal or low level signal.
In order to solve the above technical problems, the utility model also provides a kind of Solar Street Lighting System, including solar control
Device, load, battery and solar panel, in addition to described short-circuit protection circuit, the signal of the controller for solar
Output end is used as power supply and short-circuit protection electricity as load switch end, the battery and the solar panel
Road is connected.
Preferably, in addition to the controller for solar warning device being connected.
Preferably, the warning device is indicator lamp or buzzer.
Short-circuit protection circuit provided by the utility model, including NPN triode, NMOS tube, electric capacity, first resistor,
NMOS tube is arranged on the current supply circuit between load and power supply, the base stage of NPN triode be connected with load switch end with
Switching signal is received, the colelctor electrode of NPN triode and the grid of NMOS tube are connected, the grounded emitter of NPN triode, NMOS tube
Drain electrode be connected with one end of load and the first end of first resistor, the second end of first resistor and power supply and NMOS tube
Source electrode is connected, and electric capacity and first resistor are in parallel.As can be seen here, element cost used in this circuit is relatively low, and will not increase and put
The discharging efficiency of electrical circuit, when occur after short circuit can be with fast reaction, current supply circuit and power supply effectively where protection
Safety, increases the service life.In addition, the utility model also provides a kind of solar street light system comprising the short-circuit protection circuit
System, beneficial effect is ibid.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment, letter will be done to the required accompanying drawing used in embodiment below
Single introduction, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structure chart for short-circuit protection circuit that Fig. 1 provides for the utility model；
The structure chart for another short-circuit protection circuit that Fig. 2 provides for the utility model；
Fig. 3 is a kind of structure chart of Solar Street Lighting System disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than it is all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made, institute
The every other embodiment obtained, belongs to the utility model protection domain.
Core of the present utility model is to provide a kind of short-circuit protection circuit and Solar Street Lighting System, for when load output
When short circuit occurs for end, can switching off load output end in time output, and do not increase impedance and the reduction electric discharge effect of discharge loop
Rate.
In order that those skilled in the art more fully understand the utility model scheme, below in conjunction with the accompanying drawings and specific implementation
The utility model is described in further detail for mode.
In specific implementation, load can select LED.LED has environment friendly and pollution-free, little power consumption, light efficiency height, life-span
Long the features such as, therefore, LED are the optimal selections of reducing energy consumption, and LED needs constant current when working, therefore it is required that the sun
Energy circuit lamp controller has the function of constant current output.
Because the power of single led lamp is relatively low, in order to obtain high-power, it is necessary to be used after multiple LED strips parallel connections.With forward direction
Voltage Vf is 3.0V, exemplified by electric current 300mA LED lamp bead, if the LED of user using 10 strings 3 and connected modes, LED
Lamp just can be with normal work under conditions of needing voltage 30V or so, electric current 0.9A (300mA*3), and this voltage is higher than battery
Voltage, therefore need to be provided simultaneously with rise cell voltage during the work of solar street lamp controller discharge condition and export constant current
Function, referred to as voltage increase and current constant one.
Solar street lamp controller：Solar charging electric control and the control of LED voltage increase and current constants are assembled into a product, controlled
The working condition of whole system, charges a battery the energy of solar panel during daytime, and light LED street lamp photograph in the evening
It is bright, and battery is played overcharge, Cross prevention.
Short-circuit protection in Solar Street Lighting System refers to that controller for solar is in discharge condition and load end is normally defeated
When going out, the output positive and negative charge of controller is caused to be joined directly together due to loading damage or operational error, moment can produce pole
Big electric current, controller now needs to immediately turn off load, protects oneself and battery, prevents controller from damaging and causes thing
Therefore.Therefore, the utility model is exactly to solve in the case of load short circuits, how to realize and Solar Street Lighting System is protected
Shield.
A kind of structure chart for short-circuit protection circuit that Fig. 1 provides for the utility model.As shown in figure 1, short-circuit protection circuit
Including NPN triode Q2, NMOS tube Q1, electric capacity C1, first resistor R1.NMOS tube Q1 is arranged between load and power supply
On current supply circuit, NPN triode Q2 base stage B is connected to receive switching signal, NPN triode Q2 current collection with load switch end
Pole C is connected with NMOS tube Q1 grid G, NPN triode Q2 emitter E ground connection, NMOS tube Q1 drain D and one end of load
Connected with first resistor R1 first end, first resistor R2 the second end is connected with the source S of battery and NMOS tube Q1, electric capacity
C1 and first resistor R1 is in parallel.
If it is understood that in Solar Street Lighting System, the power supply used in short-circuit protection circuit is exactly
In solar panel or battery, Fig. 1, by taking battery as an example.In addition, the short-circuit protection circuit can also be applied to other fields
Scape, the present embodiment is repeated no more.
The operation principle of short-circuit protection is：
When needing to load shut-off, control load switch end output high level, NPN triode Q2 conductings, NMOS tube Q1's
Grid G driving voltage is 0, now, and NMOS tube Q1 is closed, therefore, and the current supply circuit of load is to disconnect, then load end is without defeated
Go out.
When needing to load opening, control load switch end output low level, NPN triode Q2 cut-offs, NMOS tube Q1's
Grid G driving voltage is high level, and NMOS tube Q1 conductings, therefore, the current supply circuit of load are to close, then load end has normally
Output.
Then load switch end is changed into input pattern, detects NPN triode Q2 base level states.NMOS tube Q1 is turned on
Afterwards, as long as load is not short-circuit and no high current passes through, NMOS tube Q1 drain D voltage will very little, NPN triode Q2's
Base stage B voltage also very little, so that NPN triode Q2 continues to end, NMOS tube Q1 continues to turn on.
After load short circuits, accumulator anode and cathode produces larger current I after NMOS tube Q1, and NMOS tube Q1 two ends are produced
Pressure drop Vds, drain D end has high voltage, because electric capacity C1 both end voltages can not be mutated, and electric capacity needs to continue to keep before short circuit
Low level voltage, the voltage jump at such NPN triode Q2 base stage B ends makes NPN triode Q2 fast conductings to high voltage,
So that NMOS tube Q1 gate drive voltage is changed into 0, NMOS tube Q1 is closed, then the current supply circuit where loading disconnects.
In the circuit shown in Fig. 1, the principle that can not be mutated using the voltage at electric capacity two ends can effectively shorten high current
By NMOS tube Q1 time, it is to avoid damage.
The short-circuit protection circuit that the present embodiment is provided, including NPN triode, NMOS tube, electric capacity, first resistor, NMOS tube
It is arranged on the current supply circuit between load and power supply, the base stage of NPN triode is connected to receive out with load switch end
OFF signal, the colelctor electrode of NPN triode and the grid of NMOS tube are connected, the grounded emitter of NPN triode, the drain electrode of NMOS tube
It is connected with one end of load and the first end of first resistor, the second end and the power supply and the source electrode of NMOS tube of first resistor connect
Connect, electric capacity and first resistor are in parallel.As can be seen here, element cost used in this circuit is relatively low, and will not increase discharge loop
Discharging efficiency, when occur can be with fast reaction after short circuit, the safety of current supply circuit and power supply, prolongs effectively where protection
Long life.
The structure chart for another short-circuit protection circuit that Fig. 2 provides for the utility model.As shown in Fig. 2 in above-mentioned implementation
On the basis of example, as preferred embodiment, include second resistance R2, second resistance R2 and NPN triode Q2 current collection
Pole C and the power supply V connections for providing bias voltage.
By increasing second resistance R2, the colelctor electrode C for being NPN triode Q2 plays a part of current limliting.As for second resistance
R2 resistance is chosen and can chosen according to the actual use scene of circuit, and the present embodiment is repeated no more.
On the basis of above-described embodiment, as preferred embodiment, in addition to 3rd resistor R3,3rd resistor R3 with
Load switch end and NPN triode Q2 base stage B connections.
By increasing 3rd resistor R3, the base stage B for being NPN triode Q2 plays a part of current limliting.As for 3rd resistor R3
Resistance choose can be chosen according to the actual use scene of circuit, the present embodiment is repeated no more.
On the basis of above-described embodiment, as preferred embodiment, in addition to the 4th resistance R4, the 4th resistance R4's
Two ends are connected with the negative pole of power supply and with first resistor R1 and electric capacity R2 common port respectively.
It is electric capacity C1 and first resistor R1 plays a part of current limliting by increasing by the 4th resistance R4.As for the 4th resistance R4
Resistance choose can be chosen according to the actual use scene of circuit, the present embodiment is repeated no more.
On the basis of above-described embodiment, as preferred embodiment, load switch end is for controlling short-circuit protection
The signal output part of the controller of circuit.
Because above-mentioned short-circuit protection circuit needs to be realized according to the signal at load switch end in short-circuit protection, the present embodiment
Selection is controlled using controller, and the signal output part of controller is used as load switch end.Additionally, it is preferred that, controller is
MCU, signal output part output high level signal or low level signal.
Fig. 3 is a kind of structure chart of Solar Street Lighting System disclosed in the utility model embodiment.In the above-described embodiments,
Be described in detail the corresponding embodiment of short-circuit protection circuit, the utility model be also disclosed it is a kind of comprising the short-circuit protection circuit too
Short-circuit protection circuit, i.e., be applied in Solar Street Lighting System by positive energy circuit lamp system.As shown in figure 3, Solar Street Lighting System
Including controller for solar 1, load 2, battery 3 and solar panel 4, in addition to the short-circuit protection described in above-described embodiment
Circuit 5, the signal output part of controller for solar is as load switch end, and battery 3 and solar panel 4 are electric as power supply
Source is connected with short-circuit protection circuit 5.
In specific implementation, solar panel 4 and battery 3 are not while being powered for short-circuit protection circuit 5, same
In time, otherwise it is that battery 3 is powered, otherwise it is that solar panel 4 is powered.
Due to the embodiment of short-circuit protection circuit in the above-described embodiments, is described in detail, therefore the present embodiment is no longer
Repeat.
The Solar Street Lighting System that the present embodiment is provided, including controller for solar, load, battery and solar cell
Plate, and short-circuit protection circuit.Short-circuit protection circuit includes NPN triode, and NMOS tube, electric capacity, first resistor, NMOS tube is arranged on
On current supply circuit between load and power supply, the base stage of NPN triode is connected to receive switching signal with load switch end,
The colelctor electrode of NPN triode and the grid of NMOS tube are connected, the grounded emitter of NPN triode, the drain electrode and load of NMOS tube
One end and first resistor first end connection, the second end of first resistor is connected with the source electrode of power supply and NMOS tube, electric
Hold and first resistor is in parallel.As can be seen here, element cost used in short-circuit protection circuit is relatively low, and will not increase discharge loop
Discharging efficiency, when occur can be with fast reaction after short circuit, the safety of current supply circuit and power supply, prolongs effectively where protection
Long life.
On the basis of above-described embodiment, as preferred embodiment, in addition to the report being connected with controller for solar 1
Alarm device.
In specific implementation, when there is high voltage at the base stage B ends that the pin of controller for solar 1 detects NPN triode Q2,
Load outputs short circuit is considered as, alarm signal prompting user is sent.It is preferred that, warning device is indicator lamp or buzzer.
Short-circuit protection circuit provided by the utility model and Solar Street Lighting System are described in detail above.Say
Each embodiment is described by the way of progressive in bright book, and what each embodiment was stressed is the difference with other embodiment
Between part, each embodiment identical similar portion mutually referring to.For device disclosed in embodiment, due to its with
Method is corresponding disclosed in embodiment, so description is fairly simple, related part is referring to method part illustration.It should refer to
Go out, for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from
Utility model carries out some improvement and modification, and these are improved and modification also falls into the utility model scope of the claims
It is interior.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
Claims (9)
1. a kind of short-circuit protection circuit, it is characterised in that including NPN triode, NMOS tube, electric capacity, first resistor, the NMOS
Pipe is arranged on the current supply circuit between load and power supply, the base stage of the NPN triode be connected with load switch end with
Switching signal is received, the colelctor electrode of the NPN triode is connected with the grid of the NMOS tube, the transmitting of the NPN triode
Pole is grounded, and the drain electrode of the NMOS tube is connected with the one end loaded and the first end of the first resistor, the first resistor
Second end is connected with the source electrode of the power supply and the NMOS tube, and the electric capacity and the first resistor are in parallel.
2. short-circuit protection circuit according to claim 1, it is characterised in that also including second resistance, the second resistance
It is connected with the colelctor electrode of the NPN triode and for the power supply for providing bias voltage.
3. short-circuit protection circuit according to claim 1, it is characterised in that also including 3rd resistor, the 3rd resistor
It is connected with the base stage at the load switch end and the NPN triode.
4. short-circuit protection circuit according to claim 1, it is characterised in that also including the 4th resistance, the 4th resistance
Two ends be connected respectively with the negative pole of the power supply and with the common port of the first resistor and the electric capacity.
5. short-circuit protection circuit according to claim 1, it is characterised in that the load switch end is described for controlling
The signal output part of the controller of short-circuit protection circuit.
6. short-circuit protection circuit according to claim 5, it is characterised in that the controller is MCU, the signal output
End output high level signal or low level signal.
7. a kind of Solar Street Lighting System, including controller for solar, load, battery and solar panel, its feature exist
In, in addition to the short-circuit protection circuit described in claim 1-6 any one, the signal output part work of the controller for solar
For load switch end, the battery and the solar panel are connected as power supply with the short-circuit protection circuit.
8. Solar Street Lighting System according to claim 7, it is characterised in that also including connecting with the controller for solar
The warning device connect.
9. Solar Street Lighting System according to claim 8, it is characterised in that the warning device is indicator lamp or buzzing
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251308.2U CN206517644U (en) | 2017-03-15 | 2017-03-15 | A kind of short-circuit protection circuit and Solar Street Lighting System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251308.2U CN206517644U (en) | 2017-03-15 | 2017-03-15 | A kind of short-circuit protection circuit and Solar Street Lighting System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517644U true CN206517644U (en) | 2017-09-22 |
Family
ID=59870447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720251308.2U Active CN206517644U (en) | 2017-03-15 | 2017-03-15 | A kind of short-circuit protection circuit and Solar Street Lighting System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517644U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947258A (en) * | 2017-11-13 | 2018-04-20 | 江苏罗特能源科技有限公司 | A kind of protection circuit to controller for solar |
| CN108093520A (en) * | 2017-12-21 | 2018-05-29 | 厦门厦华科技有限公司 | A kind of protection circuit during electronic whiteboard LED short circuits |
| CN113466738A (en) * | 2021-05-31 | 2021-10-01 | 广东朝阳电子科技股份有限公司 | Short circuit detection circuit |
-
2017
- 2017-03-15 CN CN201720251308.2U patent/CN206517644U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947258A (en) * | 2017-11-13 | 2018-04-20 | 江苏罗特能源科技有限公司 | A kind of protection circuit to controller for solar |
| CN108093520A (en) * | 2017-12-21 | 2018-05-29 | 厦门厦华科技有限公司 | A kind of protection circuit during electronic whiteboard LED short circuits |
| CN108093520B (en) * | 2017-12-21 | 2023-11-07 | 厦门厦华科技有限公司 | Protection circuit for electronic whiteboard LED short circuit |
| CN113466738A (en) * | 2021-05-31 | 2021-10-01 | 广东朝阳电子科技股份有限公司 | Short circuit detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201985788U (en) | Solar power generation controller | |
| CN201360156Y (en) | Charging and discharging management system for improving safety and service life of series-connected battery set | |
| CN201182028Y (en) | Solar intelligent LED street lamp controller | |
| CN102709980A (en) | Protective plate for series lithium battery pack based on battery protective chip | |
| CN107565684A (en) | A kind of exchange detection of integrated emergency lighting and power control system | |
| CN206517644U (en) | A kind of short-circuit protection circuit and Solar Street Lighting System | |
| WO2019169541A1 (en) | Discharge indicator light control circuit and lithium battery power supply protection board thereof | |
| CN105006864A (en) | Energy-storage power supply system and energy-storage power supply method | |
| CN104300606A (en) | Multi-string battery protection system | |
| WO2018019127A1 (en) | Large-power portable lithium battery pack for electric tool | |
| CN205178565U (en) | Electric automobile power battery system's initiative equalizing system | |
| CN101453815A (en) | Constant current outputting adaptive LED lamp controller | |
| CN101741121B (en) | Electronic switch arranged on lithium battery pack protecting board | |
| CN101351068B (en) | Controller electricized with PWM mode for light-control timing two-way output solar streetlight | |
| CN104218624B (en) | Lithium battery charging circuit and light fixture | |
| CN202840490U (en) | Lithium battery protective circuit and device | |
| CN201594570U (en) | Rechargeable battery equalization management system | |
| CN102427264A (en) | Design method of solar power supply controller | |
| CN203632903U (en) | Solar street lamp controller | |
| CN205986208U (en) | Emergency power source with balanced charge control module | |
| CN201382352Y (en) | Capacitance fire emergency identification lamp | |
| CN115051430A (en) | Be applied to charge-discharge branch mouth protection circuit of lithium cell | |
| CN107681737A (en) | A kind of UAV Intelligent charging system | |
| CN201114875Y (en) | A control device for intelligent setup program of solar street lamp | |
| CN201312403Y (en) | Intelligent solar energy lamp controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Short -circuit protection circuit and solar energy street lamp system Effective date of registration: 20190819 Granted publication date: 20170922 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: Qingdao Skywise Technology Co., Ltd. Registration number: Y2019370010005 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200708 Granted publication date: 20170922 Pledgee: Qingdao high technology financing Company limited by guarantee Pledgor: QINGDAO SKYWISE TECHNOLOGY Co.,Ltd. Registration number: Y2019370010005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |