CN108463028A - A kind of emergency power supply and emergency system being suitable for driving external LED lamp - Google Patents
A kind of emergency power supply and emergency system being suitable for driving external LED lamp Download PDFInfo
- Publication number
- CN108463028A CN108463028A CN201810161552.9A CN201810161552A CN108463028A CN 108463028 A CN108463028 A CN 108463028A CN 201810161552 A CN201810161552 A CN 201810161552A CN 108463028 A CN108463028 A CN 108463028A
- Authority
- CN
- China
- Prior art keywords
- circuit
- led lamp
- lithium battery
- power supply
- external led
- 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.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000005286 illumination Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of emergency power supplies being suitable for driving external LED lamp,Including lithium battery,Switching power circuit,Battery protecting circuit,On-off circuit and detection circuit and power output end,When there is alternating current,Lithium battery is charged by switching power circuit,After charging complete,Battery protecting circuit can cut off charging current,Prevent lithium battery from overcharging,When alternating current powers off,Lithium battery electric discharge provides the electric energy needed for illumination for LED lamp,Realize emergency lighting,The present invention is designed with detection circuit and on-off circuit,Detection circuit is used for detecting the state of LED lamp own switch,To control the action of on-off circuit according to detection signal,It may be implemented to remain able to the light on and off for going to control LED lamp by the switch of LED lamp itself when power is off,A kind of emergency system of the present invention,When having a power failure,Power output end transmits power supply and drives light source to driving circuit,Realize emergency lighting.
Description
Technical field
The present invention relates to emergency power supply field, especially a kind of emergency power supply for being suitable for driving external LED lamp and
Emergency system.
Background technology
LED lamp is DC light source, and conventional LED lamp carries external driving power (constant-current source), is electrically activated in city
When, alternating current input, direct current output starts LED light source and is illuminated, so conventional LED lamp does not have emergency lighting
Function, no matter international market and domestic market are increasingly paid attention to for being related to the emergency lighting of security protection at present, especially public
Place needs to install a certain proportion of emergence lighting lamp, has the function that can continue to illuminate a few hours after power failure, then
LED emergency power supplies there has been ample scope for abilities, and the switch of major part emergency power supply all on itself, can not be when having a power failure at present
The light on and off that can still go control to illuminate by the switch of LED lamp itself.
Invention content
To solve the above problems, being suitable for driving the emergent of external LED lamp the purpose of the present invention is to provide a kind of
Power supply and emergency system, not only have it is perfect overcharge, Cross prevention, can also power for LED lamp when having a power failure, and can
To pass through the light on and off of the switch control emergency lighting of LED lamp itself.
Technical solution is used by the present invention solves the problems, such as it：
A kind of emergency power supply being suitable for driving external LED lamp, includes for carrying out the lithium battery of charge and discharge, being used for
By the switching power circuit for the voltage that alternating current is converted into charging for lithium battery, the battery protection for preventing lithium battery super-charge super-discharge
Circuit, for control lithium battery voltage transmission on-off circuit and for detecting detection of the LED lamp from the state of belt switch
Circuit, the switching power circuit, battery protecting circuit, lithium battery and on-off circuit are sequentially connected, and the detection circuit is defeated
Go out to detect the break-make that signal controls on-off circuit to on-off circuit, further includes the electricity for transmitting lithium battery power supply for LED lamp
Source output terminal, the power output end are connect with on-off circuit.
Further, further include rectification circuit by AC rectification at direct current, the switching power circuit include be lithium
Battery provides the first transformer of charging voltage, and the direct current that rectification circuit exports is depressured and is by first transformer
Lithium battery charges.First transformer is step-down transformer, and the direct current after rectifier circuit rectifies is depressured to suitable lithium battery and is filled
The voltage of electricity.
Further, the battery protecting circuit is made of DW01 and LY8205 Li-ion Battery Protective Chips.Using special
Protection chip protects the charge and discharge process of lithium battery, prevents lithium battery super-charge super-discharge.
Further, the on-off circuit is relay circuit, and the relay circuit is according to the detection signal of detection circuit
Generation acts.
Further, further include the booster circuit that lithium battery voltage is boosted, the voltage of the lithium battery passes through boosting
Circuit is simultaneously transferred to on-off circuit.Booster circuit can will the boost in voltage of lithium battery to be suitble to LED lamp illumination used in
Voltage.
Further, the booster circuit includes LT1930 chips.
Further, further include inverter circuit for being connected with external LED, the inverter circuit is by lithium battery through power on/off
The voltage that road transmits carries out inversion, and is powered for LED lamp by power output end.Inverter circuit can carry out voltage
It powers to LED lamp after inversion.
Further, the inverter circuit includes the second transformer for the voltage of lithium battery to be carried out to inversion, and described the
Two transformers are connect with on-off circuit.The effect of second transformer is to carry out inversion to voltage.
Further, the inverter circuit further includes the feedback circuit for feedback control lithium battery power output.
Further, the feedback circuit is photoelectrical coupler.
A kind of emergency system includes the driving circuit that driving power is provided for the light source of illumination and for light source, described
Light source is connected in parallel, and the power supply that the driving circuit receives the power output end output is light source power supply.
The beneficial effects of the invention are as follows：A kind of emergency power supply being suitable for driving external LED lamp that the present invention uses,
The LED lamp of external can be driven to provide the emergency lighting of of short duration time when alternating current powers off, while by being provided with inspection
Slowdown monitoring circuit, the state for detecting LED lamp own switch so that, can opening by LED lamp itself when alternating current powers off
The light on and off for going control emergency lighting are closed, while being also provided with battery protecting circuit, in lithium battery charging complete, cut-out charging electricity
Stream, prevents lithium battery from overcharging, and when having a power failure, illumination is realized in power supply to LED lamp, while being also prevented from lithium battery and crossed and putting；
A kind of emergency system of the present invention, including the light source and driving circuit that are connected in parallel, in mains failure, power supply
The voltage that output end exports lithium battery arrives driving circuit, and driving circuit provides driving power for light source, realization emergency lighting.
Description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structure diagram of emergency power supply and emergency system suitable for driving external LED lamp of the present invention；
Fig. 2 is the circuit diagram of switching power circuit；
Fig. 3 is the circuit diagram of battery protecting circuit；
Fig. 4 is the circuit diagram of on-off circuit；
Fig. 5 is the circuit diagram of detection circuit；
Fig. 6 is the circuit diagram of rectification circuit；
Fig. 7 is the circuit diagram of booster circuit；
Fig. 8 is the circuit diagram of inverter circuit.
Specific implementation mode
- Fig. 8 referring to Fig.1, a kind of emergency power supply being suitable for driving external LED lamp of the invention, when there is alternating current,
Can be that lithium battery 1 charges, can cut off charging current after charging complete prevents lithium battery 1 from overcharging, when alternating current powers off, lithium
Battery 1, which can discharge and provide electric energy for LED lamp, realizes emergency lighting, a detection circuit 5 is also provided with, for detecting
The state of LED lamp own switch, when the switch is opened, detection circuit 5 are LED light according to the signal control present invention detected
Illumination is realized in tool power supply, when the switch is closed, then can be extinguished LED lamp, be realized and remain able to pass through LED when power is off
The switch of lamps and lanterns itself goes the function that control illuminates.
And the present invention is also provided with battery protecting circuit 3, battery protecting circuit 3 is by DW01 and LY8205 lithium ion batteries
Chip composition, 6 feet of DW01 chips and a foot of LY8205 is protected to be connected and connect to the cathode of lithium battery 1, lithium battery 1 is just
Pole is connected to 5 feet of DW01 chips by a resistance, and the cathode of lithium battery 1 passes through a capacitance connection to the 5 of DW01 chips
Foot, when there is alternating current, lithium battery 1 can charge, and after charging complete, it is anti-that battery protecting circuit 3 can cut off charging current
Only lithium battery 1 overcharges；When alternating current powers off, the electric discharge of lithium battery 1 is that LED lamp is powered, and meeting an urgent need up to a few hours is provided for it
Illumination, when lithium battery 1 discharges certain time, battery protecting circuit 3 can cut off the output of lithium battery 1, prevent 1 mistake of lithium battery
It puts, can ensure that lithium battery 1 remains at full power state when there is alternating current by being provided with battery protecting circuit 3, and can
It is filled with preventing the mistake of lithium battery 1 from letting off, extends the service life of lithium battery 1.
Because the charging voltage of lithium battery 1 must be direct current, the present invention is provided with rectification circuit 6 and is used for alternating current
Alternating current be converted into direct current, while switching power circuit 2 is also provided with, for being converted into the voltage after rectification for lithium
Battery 1 charge voltage, switching power circuit 2 include the first transformer 21, the first transformer 21 by the direct current after rectification into
Row decompression, the DC voltage for exporting 5V are used to charge to lithium battery 1, and electricity is connected between switching power circuit 2 and lithium battery 1
Protect circuit 3, the super-charge super-discharge for preventing lithium battery 1 in pond.
Specifically, rectification circuit 6 is MB10S rectifier bridges, and switching power circuit 2 includes not only the first transformer 21,
Further include integrated circuit PN8355.
When alternating current powers off, lithium battery 1 can discharge provides electric energy for LED lamp, and the voltage of lithium battery 1 can pass through first
Booster circuit 7 boosts, and is then passing through on-off circuit 4, on-off circuit 4 is used for controlling the output of lithium battery 1, while also setting
The detection circuit 5 of control 4 break-make of on-off circuit has been set, detection circuit 5 is used to detect the state of LED lamp own switch,
Can be designed so that for detection circuit 5 remains able to go when power is off the bright of control LED lamp by the switch of LED lamp itself
It goes out.
Detection circuit includes triode Q1, Q4, Q6, Q7, Q8, the collector of triode Q6, the base stage difference of triode Q8
It is connect with the base stage of triode Q4, the collector of triode Q8 is connected to the base stage of triode Q7, triode by a resistance
The emitter of Q7 is connect with the collector of triode Q1, and the base stage and emitter of triode Q1 pass through the collection with triode Q4 respectively
Electrode connects, the emitter ground connection of triode Q4.
Specifically, triode Q1, Q6, Q7 used in detection circuit be SS8550 models triode, triode Q4,
Q8 is the triode of SS8050 models.
Specifically, booster circuit 7 used in the present invention includes LT1930 chips.
On-off circuit 4 is relay circuit, the letter that relay circuit is switched according to the LED lamp that detection circuit 5 detects
Number generation action.
After the actuating of relay, the voltage of lithium battery 1 is transferred to booster circuit 7 by relay, and booster circuit 7 is used for will
The voltage of lithium battery 1 boosts so that the voltage after boosting reaches voltage used in LED lamp illumination.
It is also provided with the inverter circuit 8 for the voltage progress inversion after boost simultaneously, inverter circuit 8 is by lithium battery 1
The voltage transmitted through on-off circuit 4 carries out inversion, and is powered for LED lamp by power output end 9, realizes when powering off
Illumination.
Specifically, the inverter circuit 8 includes the second transformer 81 for the voltage of lithium battery 1 to be carried out to inversion, the
Two transformers 81 are connect with on-off circuit 4.
Inverter circuit 8 further comprises the feedback circuit 82 for 1 power output of feedback control lithium battery, feedback circuit simultaneously
82 be photoelectrical coupler.
A kind of emergency system of the present invention, including emergency power supply and LED lamp two large divisions, wherein LED lamp include driving
Dynamic circuit 102 and the light source 101 being connected in parallel, emergency power supply and driving circuit 102 connect, and in mains failure, power supply is defeated
The power supply of lithium battery 1 is output to driving circuit 102 by outlet 9, and driving circuit 102 can power to light source 101, realize emergent shine
It is bright, simultaneously because detection circuit 5 detects the switch of LED lamp, and according to detection signal control with deenergizing 4, reached with this
The effect of the light on and off of control light source is gone by the switch of LED lamp itself.
The above, only presently preferred embodiments of the present invention, the invention is not limited in the above embodiments, as long as
It reaches the technique effect of the present invention with identical means, should all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of emergency power supply being suitable for driving external LED lamp, it is characterised in that：It include the lithium for carrying out charge and discharge
Battery (1), the switching power circuit (2) of voltage for alternating current to be converted into charging for lithium battery (1), for preventing lithium battery
(1) battery protecting circuit (3) of super-charge super-discharge, for control lithium battery (1) voltage transmission on-off circuit (4) and for examining
Survey detection circuit (5) of the LED lamp from the state of belt switch, the switching power circuit (2), battery protecting circuit (3), lithium electricity
Pond (1) and on-off circuit (4) are sequentially connected, and detection circuit (5) the output detection signal controls break-make to on-off circuit (4)
The break-make of circuit (4), further includes the power output end (9) for transmitting lithium battery (1) power supply for LED lamp, and the power supply is defeated
Outlet (9) is connect with on-off circuit (4).
2. a kind of emergency power supply being suitable for driving external LED lamp according to claim 1, it is characterised in that：Also
Include the rectification circuit (6) by AC rectification at direct current, the switching power circuit (2) includes being provided for lithium battery (1)
The direct current that rectification circuit (6) exports is depressured by the first transformer (21) of charging voltage, first transformer (21)
And it charges for lithium battery (1).
3. a kind of emergency power supply being suitable for driving external LED lamp according to claim 1, it is characterised in that：Institute
Battery protecting circuit (3) is stated to be made of DW01 and LY8205 Li-ion Battery Protective Chips.
4. a kind of emergency power supply being suitable for driving external LED lamp according to claim 1, it is characterised in that：Institute
It is relay circuit to state on-off circuit (4), and the relay circuit is acted according to the detection signal generation of detection circuit (5).
5. a kind of emergency power supply being suitable for driving external LED lamp according to claim 1, it is characterised in that：Also
Include the booster circuit (7) that lithium battery (1) voltage boosts, the voltage of the lithium battery (1) by booster circuit (7) simultaneously
It is transferred to on-off circuit (4).
6. a kind of emergency power supply being suitable for driving external LED lamp according to claim 5, it is characterised in that：Institute
It includes LT1930 chips to state booster circuit (7).
7. a kind of emergency power supply being suitable for driving external LED lamp according to claim 1, it is characterised in that：Also
Include the inverter circuit (8) for being connected with external LED, the inverter circuit (8) passes lithium battery (1) through on-off circuit (4)
The defeated voltage to come carries out inversion, and is powered for LED lamp by power output end (9).
8. a kind of emergency power supply being suitable for driving external LED lamp according to claim 7, it is characterised in that：Institute
It includes the second transformer (81) for the voltage of lithium battery (1) to be carried out to inversion, second transformer to state inverter circuit (8)
(81) it is connect with on-off circuit (4).
9. a kind of emergency power supply being suitable for driving external LED lamp according to claim 7, it is characterised in that：Institute
It further includes the feedback circuit (82) for feedback control lithium battery (1) power output to state inverter circuit (8).
10. a kind of emergent system using any emergency power supplies suitable for driving external LED lamp of claim 1-9
System, it is characterised in that：Include the light source (101) for illumination and the driving circuit for light source (101) offer driving power
(102), the light source (101) is connected in parallel, and the driving circuit (102) receives the power supply of power output end (9) output
It powers for light source (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161552.9A CN108463028A (en) | 2018-02-26 | 2018-02-26 | A kind of emergency power supply and emergency system being suitable for driving external LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161552.9A CN108463028A (en) | 2018-02-26 | 2018-02-26 | A kind of emergency power supply and emergency system being suitable for driving external LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108463028A true CN108463028A (en) | 2018-08-28 |
Family
ID=63217550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810161552.9A Pending CN108463028A (en) | 2018-02-26 | 2018-02-26 | A kind of emergency power supply and emergency system being suitable for driving external LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108463028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451623A (en) * | 2018-10-13 | 2019-03-08 | 深圳市比尔达科技有限公司 | It is adapted to the control method and its circuit of the built-in low-power external power supply driven of lamps and lanterns |
| CN119300200A (en) * | 2024-12-10 | 2025-01-10 | 无锡安特源科技股份有限公司 | LED lamp emergency power supply and use method thereof |
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