CN209218429U - The economical LED illumination emergency light driving circuit of energy conservation - Google Patents
The economical LED illumination emergency light driving circuit of energy conservation Download PDFInfo
- Publication number
- CN209218429U CN209218429U CN201820688735.1U CN201820688735U CN209218429U CN 209218429 U CN209218429 U CN 209218429U CN 201820688735 U CN201820688735 U CN 201820688735U CN 209218429 U CN209218429 U CN 209218429U
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- China
- Prior art keywords
- circuit
- resistance
- power conversion
- emergency
- conversion control
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- 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.)
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Classifications
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- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a kind of economical LED illumination emergency light driving circuits of energy conservation, it is characterized in that, including emergency power supply and mains failure detection circuit, the another way of city's electricity output is connected to mains failure detection circuit, the output end of mains failure detection circuit is connected to switch unit, the power output end of power conversion control circuit connects bleeder circuit via switch unit, on the one hand the source electrode of field effect transistor Q1 accesses bleeder circuit, is on the other hand connected with power conversion control circuit.The utility model has the advantages that: cost is saved, emergency lighting power can be flexibly set；Reduce the weight of battery pack；Avoid the battery pack power of large capacity prolongation too long problem again；Reduce the volume of group charger in emergency power supply, reduce cost, while reducing calorific value, is conducive to improve the service life.
Description
Technical field
The utility model relates to a kind of driving circuits of LED lamp with function of emergency illumination.
Background technique
LED lamp has been widely applied because of its energy-saving effect protrusion.At the same time, some illumination LEDs with emergency function
Lamps and lanterns, demand are also continuing to increase.Currently, the main circuit of the LED lamp with function of emergency illumination is as shown in Figure 1, include
Emergency power supply, conventional LED drive circuit and LED light source.The working principle of the circuit structure is: when not having a power failure, alternating current
First by emergency power supply, on the one hand to the battery pack charging built in emergency power supply, on the other hand connect to conventional LED drive circuit
The access of indirect current input makes conventional LED driving circuit output electric current go to light LED light source.After power failure, emergency power supply
Alternating current path is switched to emergency route, using the electric energy of the battery pack storage built in emergency power supply, by converting battery pack
Low-voltage direct be converted into sufficiently high high voltage direct current (250V or so) and be input to conventional LED drive circuit.In this way, conventional
LED drive circuit can do as usual and light LED light source, and power is not as when having a power failure.
Foregoing circuit has the disadvantage in that emergency power supply is used cooperatively with conventional LED drive circuit, supplies by emergency power supply
When electric, it is desirable to provide the inputing power as when working with mains-supplied, conventional LED drive circuit could work.Such as do not having
When having power failure, normal illumination state is by mains-supplied, and LED light power is 40 watts, and after having a power failure, then by answering urgent telegram
The battery-powered offer emergency lighting in source, LED light power are equally still 40 watts.Emergency power supply is when meeting emergency as a result,
Between be not less than 90 minutes regulations, need to use the very big rechargeable battery set of a pool-size, to bring high cost.
And in power-cut emergency lighting, the brightness of LED light source does not need consistent with normal illumination, that is to say, that and be not required to
Power that will be big as normal illumination only needs the several watts of very little to the power of ten several watts, the brightness that LED light source provides also just foot
It is much of that.
Summary of the invention
The purpose of this utility model is: so that emergency power supply is able to use the battery of more small dimension, to reduce band emergency
The cost of the illumination LED lamps and lanterns of function.
In order to achieve the above object, there is provided a kind of economical LED illumination emergency of energy conservation for the technical solution of the utility model
Lamp driving circuit, which is characterized in that including emergency power supply and mains failure detection circuit, city's electricity output is divided into two-way, all the way
It is connected to emergency power supply, while being the battery charging in emergency power supply, is connected to AC/DC converting circuit, AC/DC turns
The high voltage direct current input DC/DC circuit and power conversion control circuit of circuit output are changed, the grid of field effect transistor Q1 connects
Power conversion control circuit is connect, the drain electrode of field effect transistor Q1 connects DC/DC circuit, and DC/DC circuit is according to field effect transistor
High voltage direct current is converted to low-voltage DC and provides operating voltage for LED light source by the open and close state of pipe Q1；
The another way of city's electricity output is connected to mains failure detection circuit, and the output end of mains failure detection circuit is connected to
The power output end of switch unit, power conversion control circuit connects bleeder circuit, field effect transistor Q1 via switch unit
Source electrode on the one hand access bleeder circuit, be on the other hand connected with power conversion control circuit；
The mains failure detection circuit includes AC/DC unit, resistance R1 and zener diode D1, one end of resistance R1
AC/DC unit is connected, the other end connects the cathode of zener diode D1, and it is single that the anode of zener diode D1 connects the switch
Member；
The switch unit includes triode V1, and the emitter of triode V1 is connected with the power conversion control circuit,
On the one hand the base stage of triode V1 connects the anode of the zener diode D1, be on the other hand grounded via resistance R2, triode
One end of the collector connection resistance R4 of V1；
The bleeder circuit includes resistance R3 and resistance R4, and the collector of one end connecting triode V1 of resistance R4 is another
One end and power conversion control circuit, one end of resistance R3 of end connection resistance R3 is also connected with the source of the field effect transistor Q1
Pole, the other end ground connection of resistance R3.
The utility model has the advantages that:
1) cost is saved, emergency lighting power can be flexibly set, in the case where storage tankage determines, thus control is answered
The length of anxious time；
2) weight for reducing battery pack, solves that battery pack quantity is more, weight too weighs, and can not be mounted in furred ceiling layer
The problem of；
3) battery pack power of large capacity prolongation too long problem again is avoided；
4) volume for reducing group charger in emergency power supply, reduces cost, while reducing calorific value, is conducive to improve
Service life.
Detailed description of the invention
Fig. 1 is the driving circuit of the existing illumination LED lamps and lanterns with emergency function；
Fig. 2 is the circuit block diagram of the utility model；
Fig. 3 is the electrical schematic diagram of the utility model.
Specific embodiment
To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
As shown in Figure 1, in a kind of economical LED illumination emergency light driving circuit of energy conservation provided by the utility model, city
Electricity output is divided into two-way, is connected to emergency power supply all the way, while being the battery charging in emergency power supply, is connected to EMC circuit,
EMC circuit is connected with AC/DC circuit, the output end connection DC/DC circuit and power conversion control circuit of AC/DC circuit.Field effect
The grid of transistor Q1 is answered to connect power conversion control circuit, the drain electrode of field effect transistor Q1 connects DC/DC circuit, field-effect
The source electrode of transistor Q1 connects power conversion control circuit.
The another way of city's electricity output is connected to AC/DC unit, and one end of resistance R1 connects AC/DC unit, other end connection
The cathode of zener diode D1, the base stage of the anode connecting triode V1 of zener diode D1.The base stage of triode V1 also via
Resistance R2 ground connection, the emitter-base bandgap grading of triode V1 are connected with power conversion control circuit, the collector connection resistance R4's of triode V1
One end, one end of the other end connection resistance R3 of resistance R4, one end of resistance R3 are also connected with the source electrode of field effect transistor Q1,
The other end of resistance R3 is grounded.
In the case where alternating current normal power supply, after alternating current is direct current via AC/DC cell translation, by resistance R1, steady
Pressure diode D1, resistance R2 obtain a partial pressure value, are not turned on triode V1 closing.Meanwhile alternating current inputs AC/DC circuit,
By AC/DC circuit output high voltage direct current, high voltage direct current provides the operating voltage of power conversion control circuit, is converted by power
Control circuit controls the open and close state of field effect transistor Q1, and DC/DC circuit is then according to the open and close shape of field effect transistor Q1
The high voltage direct current of AC/DC circuit output is converted to low-voltage DC and provides operating voltage for LED light source by state, to make LED
Light source luminescent.At this point, triode V1 does not work, it is maximum power that power conversion, which is output to the power of LED light source,.
After when power failure, resistance R1 and zener diode D1 do not have electric current to flow through, so resistance R2 can not allow triode
V1 closes the voltage value being not turned on, so triode V1 is connected at this time, will export an electric current from power conversion control circuit, should
Electric current arrives power regulation button, resistance R4 and resistance R3 by triode V1 again, and a partial pressure value is obtained on resistance R3, thus
By the voltage high on the source electrode of field effect transistor Q1, and by the source electrode of power regulation button adjusting field effect transistor Q1
Voltage, thus change Q1 open and close rule, reach and subtract low power purpose.
Claims (1)
1. a kind of economical LED illumination emergency light driving circuit of energy conservation, which is characterized in that examined including emergency power supply and mains failure
Slowdown monitoring circuit, city's electricity output are divided into two-way, are connected to emergency power supply all the way, while being the battery charging in emergency power supply, connection
To AC/DC converting circuit, the high voltage direct current input DC/DC circuit and power conversion and control of AC/DC converting circuit output
Circuit, the grid of field effect transistor Q1 connect power conversion control circuit, the drain electrode connection DC/DC electricity of field effect transistor Q1
Road, it is LED light that high voltage direct current is converted to low-voltage DC according to the open and close state of field effect transistor Q1 by DC/DC circuit
Source provides operating voltage；
The another way of city's electricity output is connected to mains failure detection circuit, and the output end of mains failure detection circuit is connected to switch
The power output end of unit, power conversion control circuit connects bleeder circuit, the source of field effect transistor Q1 via switch unit
On the one hand bleeder circuit is accessed in pole, be on the other hand connected with power conversion control circuit；
The mains failure detection circuit includes AC/DC unit, resistance R1 and zener diode D1, one end connection of resistance R1
AC/DC unit, the other end connect the cathode of zener diode D1, and the anode of zener diode D1 connects the switch unit；
The switch unit includes triode V1, and the emitter of triode V1 is connected with the power conversion control circuit, three poles
On the one hand the base stage of pipe V1 connects the anode of the zener diode D1, be on the other hand grounded via resistance R2, triode V1's
One end of collector connection resistance R4；
The bleeder circuit includes resistance R3 and resistance R4, the collector of one end connecting triode V1 of resistance R4, other end company
One end of connecting resistance R3 and power conversion control circuit, one end of resistance R3 are also connected with the source electrode of the field effect transistor Q1,
The other end of resistance R3 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688735.1U CN209218429U (en) | 2018-05-09 | 2018-05-09 | The economical LED illumination emergency light driving circuit of energy conservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820688735.1U CN209218429U (en) | 2018-05-09 | 2018-05-09 | The economical LED illumination emergency light driving circuit of energy conservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209218429U true CN209218429U (en) | 2019-08-06 |
Family
ID=67451651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820688735.1U Expired - Fee Related CN209218429U (en) | 2018-05-09 | 2018-05-09 | The economical LED illumination emergency light driving circuit of energy conservation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209218429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719675A (en) * | 2019-11-08 | 2020-01-21 | 广州市明电照明科技有限公司 | Stage battery lamp power supply system |
-
2018
- 2018-05-09 CN CN201820688735.1U patent/CN209218429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719675A (en) * | 2019-11-08 | 2020-01-21 | 广州市明电照明科技有限公司 | Stage battery lamp power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20210509 |