CN204993991U - Can last light circuit of illumination - Google Patents
Can last light circuit of illumination Download PDFInfo
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- CN204993991U CN204993991U CN201520661465.1U CN201520661465U CN204993991U CN 204993991 U CN204993991 U CN 204993991U CN 201520661465 U CN201520661465 U CN 201520661465U CN 204993991 U CN204993991 U CN 204993991U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a can last light circuit of illumination, including lamps and lanterns drive unit, emergent drive unit and battery battery charging unit, lamps and lanterns drive unit and battery battery charging unit's input port all is connected with the electric wire netting, a relay is connected to lamps and lanterns drive unit's output, and this relay is still connected lamps and lanterns are connected to emergency driving unit output and electricity, the battery is connected to battery battery charging unit output to charge to the battery by this battery battery charging unit when electric wire netting the normal power supply, when a power network has a power cut, the relay with lamps and lanterns by with lamps and lanterns drive unit connect switch be with the emergency driving unit connection to last the illumination by battery powered messenger's lamps and lanterns. The lamps and lanterns that adopt this neotype circuit can last the illumination under the electric wire netting outage condition, and emergency driving automatic control, and are energy -conserving and convenient.
Description
Technical field
The utility model relates to field of illuminating lamps, especially relates to a kind of lighting lamp circuit that can continue to throw light on.
Background technology
Illumination is the behavior required for daily life, along with making rapid progress of home decoration, the use of lighting is also more and more, and now, how what people considered makes lighting can be intelligent if being then, while meeting the demand of throwing light on and beautifying, also can meet the demand of intelligent power saving.But in existing lighting, following points are not enough: one is, common lighting does not possess function of emergency illumination, and when unexpected power-off is netted in Ji city, lighting also extinguishes, and unexpected extinguishing can bring unexpected danger thereupon; Two are, the existing lighting (as audio-switch, light-operated switch) with inductor, its intelligent deficiency, because its sensing device is analogue device, as long as just can sensing device be triggered when there being trigger source, this for energy-conservation be not enough; Three are, the city net applicability of existing light fixture to various criterion is not enough.
Utility model content
The technical problem of solution of the present utility model is the defect for above-mentioned existence of the prior art, provides and can mate different electrical network standard, adopts the illuminating lamp prodigiosin of this circuit to use under different electrical network standard, can continue illumination when unexpected power-off is netted in city.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is as follows: a kind of lighting lamp circuit that can continue to throw light on, comprises light fixture driver element, emergency driving unit and battery charging unit; Described light fixture driver element is all connected with electrical network with the input port of battery charging unit, and the output of described light fixture driver element connects a relay, and this relay also connects described emergency driving unit output and electrical connection light fixture; Described battery charging unit output connects battery, and is charged to battery by this battery charging unit when electrical network normal power supply; When grid cut-off, light fixture is connected with described emergency driving unit by being connected to switch to described light fixture driver element by described relay, and the battery-powered light fixture that makes continues illumination.
Elaboration as to technique scheme:
In technique scheme, described light fixture driver element comprises rectification circuit and pressure-stabilizing constant flow circuit, described rectification circuit comprises EMI inductance, rectifier bridge stack, contravariant transformer and Active PFC chip, described EMI inductance input port connects electrical network, output port connects described rectifier bridge stack, described rectifier bridge stack is electrically connected successively with contravariant transformer and Active PFC chip and forms circuit loop, makes described contravariant transformer export constant DC voltage by Active PFC chip controls, described pressure-stabilizing constant flow circuit comprises voltage sample circuit, current sampling circuit and dual operational amplifier, described voltage sample circuit and current sampling circuit is established between the output of described contravariant transformer and two inputs of described dual operational amplifier, two outputs of described dual operational amplifier are connected with the photophore of optocoupler by diode, the light-receiving device of optocoupler is connected with described Active PFC chip, described voltage sample circuit and current sampling circuit and described dual operational amplifier, optocoupler and Active PFC chip form the loop controlling to make described contravariant transformer stable output voltage and constant current.Further, π type filter circuit is provided with between the rectifier bridge stack of described rectification unit and contravariant transformer.
In technique scheme, battery charging unit comprises EMI inductance, rectifier bridge stack, transformer, feedback circuit and power supply chip, described EMI inductance input port connects electrical network, output port connects rectifier bridge stack, and described rectifier bridge stack and transformer, power supply chip and feedback circuit are electrically connected and forming circuit loop successively; Described transformer secondary coil two ends are the output of battery charging module, and this output connects battery; Described feedback circuit comprises controllable accurate source of stable pressure element, optocoupler and periphery resistance, and the voltage reference electrode of described controllable accurate source of stable pressure element is connected with the output plus terminal of battery charging unit by a resistance, and is connected with reference to ground by another resistance; The photophore negative electrode of described optocoupler is connected with the negative electrode of described controllable accurate source of stable pressure element, the anode of photophore is connected with the output plus terminal of battery charging unit by resistance, and being serially connected with a resistance between the photophore negative electrode and positive electrode of described optocoupler, the collector electrode of the light-receiving device of described optocoupler is electrically connected with the reference voltage port of described power supply chip; Described feedback circuit sampling battery charging unit output voltage, feedback voltage is changed to described power supply chip, is charged to battery by described power supply chip control transformer stable output voltage.
In technique scheme, described emergency driving unit comprises a metal-oxide-semiconductor, two triodes and constant-current driven chip; The source electrode of described metal-oxide-semiconductor is electrically connected with the output plus terminal of described battery charging unit and/or anode, its grid is electrically connected with the collector electrode of one of described two triodes, the base stage of this triode is connected with the collector electrode of another triode of described two triodes, and the base stage of this another triode connects an electrochemical capacitor and diode is electrically connected with the output plus terminal of described battery charging unit; The input port of described constant-current driven chip is electrically connected with the source electrode of described metal-oxide-semiconductor, and is electrically connected an inductance between constant-current driven chip output port and input port; When battery charging unit stops, described two triodes and metal-oxide-semiconductor conducting, powered battery and the voltage exporting and drive light fixture work that boosted by described constant-current driven chip.
In technique scheme, also comprise and touch emergent test cell, this touching test unit comprise touch control chip and and triode, the output port of described touch control chip is electrically connected with the base stage of this triode by a resistance, and the collector electrode of this triode is connected with the cathodic electricity of described battery charging unit controllable accurate source of stable pressure element; Described touch control chip sends emergent touch signal, triode ON, and described battery charging unit is exported over the ground, described relay work, be connected with described emergency driving unit by being connected to switch to described light fixture driver element by light fixture, and have powered battery, light fixture continues illumination.
In technique scheme, described Active PFC chip is the Active PFC chip of L6562 series, and described dual operational amplifier is LM385 chip, and described optocoupler is PC817 single channel optocoupler; Described power supply chip is the switching regulator off-line power supply changeover device of VIPER17 series, and described controllable accurate source of stable pressure element is TCL431 adjustable shunt fiducial chip; Described constant-current driven chip is XL6005 or XL6006 series constant-current driven chip, and described metal-oxide-semiconductor is MI3407 or AO3407MOS pipe.
The beneficial effects of the utility model are: use under utilizing the emergency light prodigiosin of this novel circuit to mate different electrical network standard, illumination is continued when grid cut-off, electric energy power consumption waste is few, and also has the emergent test function of touch, guarantees the correctly corresponding of emergency lighting.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model
Embodiment
Be described in further detail below in conjunction with accompanying drawing 1 pair of the utility model.
Accompanying drawing 1 example a kind of specific embodiment of the present utility model.The lighting lamp circuit thrown light on can be continued, comprise light fixture driver element 1, emergency driving unit 3 and battery charging unit 2; Described light fixture driver element 1 is all connected with electrical network with the input port of battery charging unit 3 (connecting live wire L and the zero line N of electrical network), the output of described light fixture driver element 1 connects a relay R Y1, and this relay R Y1 also connects described emergency driving unit 3 output and electrical connection light fixture; Described battery charging unit 2 output connects battery, and is charged by this battery charging unit 2 pairs of batteries when electrical network normal power supply; When grid cut-off, light fixture is connected with described emergency driving unit 3 by being connected to switch to described light fixture driver element 2 by described relay R Y1, and the battery-powered light fixture that makes continues illumination.It should be noted that, described relay R Y1 is dpdt relay, and wherein operating circuit part is RY1A and RY1C two-terminal, and the switch of control section is RY1B, after a loss of power, the RY1B of Control part closes, and the different driving unit that RY1A with RY1C two-terminal is connected exchanges mutually, with reference to accompanying drawing 1, now relay port (4,5) and port (1,3) conducting, namely light fixture is directly connected by the output of relay with emergency driving unit; And in normal power supply situation, the output port of light fixture driver element 1 is communicated with by relay single port (4,5) and port (1,3), thus light fixture driver element 1 is connected with light fixture through relay.
Wherein, with reference to accompanying drawing 1, described light fixture driver element 1 comprises rectification circuit and pressure-stabilizing constant flow circuit; Described rectification circuit comprises EMI inductance T3, rectifier bridge stack DB1, contravariant transformer T2 and Active PFC chip U4; Described EMI inductance T3 input port connects electrical network, before electrical network access EMI inductance T3, also through by piezo-resistance TR1 with comprise the RC filter circuit filtering that electric capacity CX1 and resistance R20 and resistance R23 forms, piezo-resistance TR1 can eliminate the spike of electrical network introduction; The positive output port of EMI inductance T3 connects the upper end of the primary coil of described rectifier bridge stack DB1, and is provided with π type filter circuit between positive output port and primary coil, and this π type filter circuit comprises electric capacity C10 ~ C11 and inductance L 1.Described rectifier bridge stack DB1 is electrically connected successively with contravariant transformer T2 and Active PFC chip U4 and forms circuit loop, controlled to make described contravariant transformer T2 export constant DC voltage by Active PFC chip U4, wherein Active PFC chip U4 controls the output of contravariant transformer T2 level by affecting the limit number of transformer.
Described pressure-stabilizing constant flow circuit comprises voltage sample circuit, current sampling circuit and dual operational amplifier U5, and dual operational amplifier U5 comprises comparator U5A and comparator U5B.The output (secondary coil) of described contravariant transformer T2 and the two comparator (U5A of described dual operational amplifier U5, U5B) described voltage sample circuit and current sampling circuit is established between input, described voltage sample circuit comprises three resistance R33, R44, R49 of series connection, resistance R49 one end connects with reference to ground, resistance R33 one end connects the output of contravariant transformer T2, the reverse input end of the voltage input comparator U5B relatively of sample resistance R49, makes the voltage sample of pressure-stabilizing constant flow circuit.Described current sampling circuit comprises power resistor R28 and resistance R30, R30 one end connects electric capacity C8 over the ground, the reverse input end of sample resistance R30 and electric capacity C8 junction voltage input comparator U5A, make the current sample of pressure-stabilizing constant flow circuit, the output of two comparators (U5A.U5B) of described dual operational amplifier U5 is connected with the photophore U6A of optocoupler U6 with diode D6 respectively by diode D7, and the light-receiving device U6B of optocoupler U6 is connected with the reverse input end INV of described Active PFC chip U4 by resistance R42.Described voltage sample circuit and current sampling circuit and described dual operational amplifier U5, optocoupler U6 and Active PFC chip U4 form the loop controlling to make described contravariant transformer T2 stable output voltage and constant current.It should be noted that, voltage stabilizing process is: carry out voltage sampling by R33, R44, R49 and controllable accurate source of stable pressure element U7 reference voltage compares through dual operational amplifier U5 comparator U5B, produce the reflector U6A that error voltage removes to control optocoupler U6, light-receiving device U6B feeds back to Active PFC chip U4 output pwm signal and controls metal-oxide-semiconductor Q3 ON time, thus change the primary coil limit number of contravariant transformer T2, regulated output voltage.Equally, the process of constant current is: compared through dual operational amplifier U5 comparator U5A by R28, R30 power taking pressure and controllable accurate source of stable pressure element U7 reference voltage, produce the reflector U6A that error voltage removes to control optocoupler U6, light-receiving device U6B feeds back to Active PFC chip U4 output pwm signal and controls metal-oxide-semiconductor Q3 ON time, thus change the primary coil limit number of contravariant transformer T2, make current constant.
Wherein, with reference to accompanying drawing 1, battery charging unit 2 comprises EMI inductance L 1, rectifier bridge stack DB2, transformer T5, feedback circuit and power supply chip U8, described EMI inductance L 1 input port connects electrical network, before electrical network access EMI inductance L 1, also through by piezo-resistance ZNR1 with comprise the RC filter circuit filtering that electric capacity CX2 and resistance R58 ~ R59 form, piezo-resistance ZNR1 can eliminate the spike of electrical network introduction; The output port of EMI inductance L 1 connects rectifier bridge stack DB2, and described rectifier bridge stack DB2 and transformer T5, power supply chip U8 and feedback circuit are electrically connected and forming circuit loop successively; Described transformer T5 secondary coil two ends are the output of battery charging module 2, and through current-limiting resistance R57 current limliting, constant voltage mode charges the battery.Described feedback circuit comprises controllable accurate source of stable pressure element U11, optocoupler U9 and periphery resistance, the voltage reference electrode of described controllable accurate source of stable pressure element U11 is connected with the output plus terminal (+13V) of battery charging unit 2 by resistance R73, is also connected with reference to ground by resistance R78; The photophore negative electrode of described optocoupler U9 is connected with the negative electrode of described controllable accurate source of stable pressure element U11, the anode of photophore is connected with the output plus terminal (+13V) of battery charging unit by resistance R68, and being serially connected with resistance R72 between the photophore negative electrode and positive electrode of described optocoupler U9, on the photophore of also i.e. described optocoupler U9, the voltage at loading resistor R72 two ends is luminous for it.The collector electrode of the light-receiving device of described optocoupler U9 is electrically connected with the reference voltage port FB of described power supply chip U8; Described feedback circuit sampling battery charging unit 2 output voltage, output end voltage changing value is fed back to described power supply chip U8, described power supply chip U8 is the limit number of control transformer T5 primary coil by start and stop, thus compensates the change of output voltage, and stable output voltage charges to battery.
Wherein, with reference to accompanying drawing 1, described emergency driving unit comprises metal-oxide-semiconductor Q5, triode Q6, Q8 and constant-current driven chip U10; The source electrode of described metal-oxide-semiconductor Q5 is electrically connected with the output of described battery charging unit 2 and/or anode; During charging, the voltage that battery charging unit 2 exports accesses anode after current-limiting resistance R57 and diode D10 current limliting.The grid of metal-oxide-semiconductor Q5 is electrically connected with the collector electrode of triode Q6, the base stage of triode Q6 is connected with the collector electrode of triode Q8, the base stage of triode Q8 connects electrochemical capacitor E11 and diode D17 and is electrically connected with the output plus terminal (+13V) of battery charging unit 2, the input port (Vin) of described constant-current driven chip U10 is electrically connected with the source electrode of described metal-oxide-semiconductor Q5, and is electrically connected inductance L 3 between constant-current driven chip U10 output port and input port.At shutdown transient, charge power supply of battery 2 stops charging, output plus terminal (+13V) the voltage that diode D17 detects battery charging unit 2 is zero, electrochemical capacitor E11 reverse charging is for triode Q8 conducting, Q8 conducting makes Q6 conducting, Q6 conducting driven MOS pipe Q5 conducting, thus drive relay R Y1 to close, operating state is switched to powered battery, now anode is communicated with the input port (Vin) of constant-current driven chip U10 through metal-oxide-semiconductor, boost through constant-current driven chip U10, constant-current driven chip U10 output port (SW) connects filter regulator circuit, export the voltage driving light fixture working stability.
In the above-described embodiments, also comprise and touch emergent test cell 4, this touching test unit 4 comprise touch control chip U13 and with triode Q7, the output port of described touch control chip U13 is electrically connected with the base stage of triode Q7 by resistance R79, and the collector electrode of triode Q7 is connected with the cathodic electricity of described battery charging unit 2 controllable accurate source of stable pressure element U11; Described touch control chip U13 sends out the touch signal of emergent test, and triode Q7 conducting, makes battery charging unit 2 export over the ground, namely battery charging unit 2 output voltage is pulled down to zero, stress driver element 3 corresponding after simulating grid power-off.Its correspondence corresponding consistent with the work of emergency driving unit 3.
As preferably, in above-described embodiment, described Active PFC chip is the Active PFC chip of L6562 series, and described dual operational amplifier is LM385 chip, and described optocoupler is PC817 single channel optocoupler; Described power supply chip is the switching regulator off-line power supply changeover device of VIPER17 series, and described controllable accurate source of stable pressure element is TCL431 adjustable shunt fiducial chip; Described constant-current driven chip is XL6005 or XL6006 series constant-current driven chip, and described metal-oxide-semiconductor is MI3407 or AO3407MOS pipe.
More than not technical scope of the present utility model is imposed any restrictions, all above embodiment is done according to the utility model technical spirit any amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (9)
1. can continue the lighting lamp circuit thrown light on, it is characterized in that: comprise light fixture driver element, emergency driving unit and battery charging unit; Described light fixture driver element is all connected with electrical network with the input port of battery charging unit, and the output of described light fixture driver element connects a relay, and this relay also connects described emergency driving unit output and electrical connection light fixture; Described battery charging unit output connects battery, and is charged to battery by this battery charging unit when electrical network normal power supply; When grid cut-off, light fixture is connected with described emergency driving unit by being connected to switch to described light fixture driver element by described relay, and the battery-powered light fixture that makes continues illumination.
2. a kind of lighting lamp circuit that can continue to throw light on according to claim 1, is characterized in that: described light fixture driver element comprises rectification circuit and pressure-stabilizing constant flow circuit, described rectification circuit comprises EMI inductance, rectifier bridge stack, contravariant transformer and Active PFC chip, described EMI inductance input port connects electrical network, output port connects described rectifier bridge stack, described rectifier bridge stack is electrically connected successively with contravariant transformer and Active PFC chip and forms circuit loop, makes described contravariant transformer export constant DC voltage by Active PFC chip controls, described pressure-stabilizing constant flow circuit comprises voltage sample circuit, current sampling circuit and dual operational amplifier, described voltage sample circuit and current sampling circuit is established between the output of described contravariant transformer and two inputs of described dual operational amplifier, two outputs of described dual operational amplifier are connected with the photophore of optocoupler by diode, the light-receiving device of optocoupler is connected with described Active PFC chip, described voltage sample circuit and current sampling circuit and described dual operational amplifier, optocoupler and Active PFC chip form the loop controlling to make described contravariant transformer stable output voltage and constant current.
3. a kind of lighting lamp circuit that can continue to throw light on according to claim 2, is characterized in that: be provided with π type filter circuit between the rectifier bridge stack of described rectification unit and contravariant transformer.
4. a kind of lighting lamp circuit that can continue to throw light on according to Claims 2 or 3 any one, it is characterized in that: described Active PFC chip is the Active PFC chip of L6562 series, described dual operational amplifier is LM385 chip, and described optocoupler is PC817 single channel optocoupler.
5. a kind of lighting lamp circuit that can continue to throw light on according to claim 1, it is characterized in that: battery charging unit comprises EMI inductance, rectifier bridge stack, transformer, feedback circuit and power supply chip, described EMI inductance input port connects electrical network, output port connects rectifier bridge stack, and described rectifier bridge stack and transformer, power supply chip and feedback circuit are electrically connected and forming circuit loop successively; Described transformer secondary coil two ends are the output of battery charging module, and this output connects battery; Described feedback circuit comprises controllable accurate source of stable pressure element, optocoupler and periphery resistance, and the voltage reference electrode of described controllable accurate source of stable pressure element is connected with the output plus terminal of battery charging unit by a resistance, and is connected with reference to ground by another resistance; The photophore negative electrode of described optocoupler is connected with the negative electrode of described controllable accurate source of stable pressure element, the anode of photophore is connected with the output plus terminal of battery charging unit by resistance, and being serially connected with a resistance between the photophore negative electrode and positive electrode of described optocoupler, the collector electrode of the light-receiving device of described optocoupler is electrically connected with the reference voltage port of described power supply chip; Described feedback circuit sampling battery charging unit output voltage, feedback voltage is changed to described power supply chip, is charged to battery by described power supply chip control transformer stable output voltage.
6. a kind of lighting lamp circuit that can continue to throw light on according to claim 5, it is characterized in that: also comprise and touch emergent test cell, this touching test unit comprise touch control chip and and triode, the output port of described touch control chip is electrically connected with the base stage of this triode by a resistance, and the collector electrode of this triode is connected with the cathodic electricity of described battery charging unit controllable accurate source of stable pressure element; Described touch control chip sends emergent touch signal, triode ON, and described battery charging unit is exported over the ground, described relay work, be connected with described emergency driving unit by being connected to switch to described light fixture driver element by light fixture, and have powered battery, light fixture continues illumination.
7. a kind of lighting lamp circuit that can continue to throw light on according to claim 5 or 6 any one, it is characterized in that: described power supply chip is the switching regulator off-line power supply changeover device of VIPER17 series, described controllable accurate source of stable pressure element is TCL431 adjustable shunt fiducial chip, and described optocoupler is PC817 single channel optocoupler.
8. a kind of lighting lamp circuit that can continue to throw light on according to claim 1, is characterized in that: described emergency driving unit comprises a metal-oxide-semiconductor, two triodes and constant-current driven chip; The source electrode of described metal-oxide-semiconductor is electrically connected with the output plus terminal of described battery charging unit and/or anode, its grid is electrically connected with the collector electrode of one of described two triodes, the base stage of this triode is connected with the collector electrode of another triode of described two triodes, and the base stage of this another triode connects an electrochemical capacitor and diode is electrically connected with the output plus terminal of described battery charging unit; The input port of described constant-current driven chip is electrically connected with the source electrode of described metal-oxide-semiconductor, and is electrically connected an inductance between constant-current driven chip output port and input port; When battery charging unit stops, described two triodes and metal-oxide-semiconductor conducting, powered battery and the voltage exporting and drive light fixture work that boosted by described constant-current driven chip.
9. a kind of lighting lamp circuit that can continue to throw light on according to claim 8, is characterized in that: described constant-current driven chip is XL6005 or XL6006 series constant-current driven chip, and described metal-oxide-semiconductor is MI3407 or AO3407MOS pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661465.1U CN204993991U (en) | 2015-08-27 | 2015-08-27 | Can last light circuit of illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661465.1U CN204993991U (en) | 2015-08-27 | 2015-08-27 | Can last light circuit of illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993991U true CN204993991U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520661465.1U Active CN204993991U (en) | 2015-08-27 | 2015-08-27 | Can last light circuit of illumination |
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|---|---|
| CN (1) | CN204993991U (en) |
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2015
- 2015-08-27 CN CN201520661465.1U patent/CN204993991U/en active Active
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