CN101801131A - Emergency lamp control circuit and emergency illumination lamp fitting - Google Patents
Emergency lamp control circuit and emergency illumination lamp fitting Download PDFInfo
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- CN101801131A CN101801131A CN201010111461A CN201010111461A CN101801131A CN 101801131 A CN101801131 A CN 101801131A CN 201010111461 A CN201010111461 A CN 201010111461A CN 201010111461 A CN201010111461 A CN 201010111461A CN 101801131 A CN101801131 A CN 101801131A
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Abstract
The invention provides an emergency lamp control circuit and an emergency illumination lamp fitting, which are applicable to the filed of LED lamp fittings. The emergency lamp control circuit comprises a power supply input module, a rectifying module, a detection module, a power supply conversion module and a battery power supply control module. When the first output end and the second output end of the power supply input module simultaneously have the power supply signal output, the main power supply output by the power supply input module supplies power to a ballast after passing through the power supply conversion module; after the emergency power supply output by the power supply input module passes through the rectifying module and the detection module, the power supply conversion module is controlled to be in a commercial power supply mode; and when the second output end of the power supply input module has no power supply signal output, the battery power supply control module makes the power supply conversion module be in a battery power supply mode according to the control signals output by the detection module. The invention adopts the detection module for outputting the control signals and controlling the power supply conversion module to be in a commercial power supply mode or a battery power supply mode, so the emergency illumination lamp can also be used as an ordinary illumination lamp.
Description
Technical field
The invention belongs to the LED field of light fittings, relate in particular to a kind of emergency light control circuit and emergence lighting lamp.
Background technology
Emergency light source has been widely used in various occasions, as the Emergency Light after external civil power outage.This class illumination has two kinds of working methods: a kind of is not work at ordinary times, starts emergency lighting after the civil power outage; Another kind is that to adopt mains-supplied, lamp at ordinary times be bright, when the startup emergency lighting of outage back.The shortcoming of this class emergency light is to use as general lighting: when promptly civil power being arranged, turn-off the urban electric power switch, lamp is not worked, whenever necessary, open the urban electric power switch, lamp is lighted; During no civil power, no matter the urban electric power switch is to disconnect or closed, all should start emergency lighting.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of emergency light control circuit, and being intended to solve existing emergency light source can not be as the problem of general lighting use.
The embodiment of the invention is achieved in that a kind of emergency light control circuit, comprising: Power Entry Module, rectification module, detection module, power transfer module and powered battery control module; First output of described Power Entry Module is connected to the mains-supplied end of described power transfer module, and the output of described power transfer module connects ballast; Second output of described Power Entry Module is connected to the input of described rectification module, the output of described rectification module is connected to the input of described detection module, and the output of described detection module is connected to the control end of described powered battery control module and the control end of described power transfer module; The output of described powered battery control module is connected to the powered battery end of described power transfer module; The input of described powered battery control module is connected to the output of charging circuit, and the input of described charging circuit is connected to second output of described Power Entry Module; When first output of described Power Entry Module and second output had power supply signal output simultaneously, the main power source of first output output of described Power Entry Module was through giving described ballast power supply after the described power transfer module; The emergency power supply of second output of described Power Entry Module output is through after the described rectification module rectification, and described detection module is exported first control signal and controlled described power transfer module and be in the mains-supplied pattern; When second output of described Power Entry Module did not have power supply signal output, described powered battery control module was controlled described power transfer module according to second control signal of described detection module output and is in battery powered mode.
Another purpose of the embodiment of the invention is to provide a kind of emergence lighting lamp that adopts above-mentioned emergency light control circuit.
Emergency light control circuit provided by the invention adopts detection module output control signal and controls power transfer module and is in mains-supplied pattern or battery powered mode, makes emergency light can also use as general lighting simultaneously.
Description of drawings
Fig. 1 is the structure principle chart of the emergency light control circuit that provides of the embodiment of the invention;
Fig. 2 is the circuit diagram of Power Entry Module, rectification module and power transfer module in the emergency light control circuit that provides of the embodiment of the invention;
Fig. 3 is the circuit diagram of detection module in the emergency light control circuit that provides of the embodiment of the invention;
Fig. 4 is the circuit diagram of powered battery control module in the emergency light control circuit that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The emergency light control circuit that the embodiment of the invention provides adopts detection module output control signal and controls power transfer module and is in mains-supplied pattern or battery powered mode, makes emergency light can also use as general lighting simultaneously.
The emergency light control circuit that the embodiment of the invention provides is mainly used in the emergence lighting lamp, and Fig. 1 shows the structural principle of this emergency light control circuit, for convenience of explanation, only shows the part relevant with the embodiment of the invention, and details are as follows.
Emergency light control circuit 2 comprises: Power Entry Module 21, rectification module 22, detection module 23, power transfer module 25 and powered battery control module 24; Wherein first output of Power Entry Module 21 is connected to the mains-supplied end of power transfer module 25, and the output of power transfer module 25 connects ballast 12; Second output of Power Entry Module 21 is connected to the input of rectification module 22, the output of rectification module 22 is connected to the input of detection module 23, and the output of detection module 23 is connected to the control end of powered battery control module 24 and the control end of power transfer module 25; The output of powered battery control module 24 is connected to the powered battery end of power transfer module 25; The input of powered battery control module 24 is connected to the output of charging circuit 11, and the input of charging circuit 11 is connected to second output of Power Entry Module 21; When first output of Power Entry Module 21 and second output had power supply signal output simultaneously, the main power source of first output output of Power Entry Module 21 gave ballast 12 power supplies through power transfer module 25 backs; After emergency power supply process rectification module 22 rectifications of second output output of Power Entry Module 25, detection module 23 output first control signal control power transfer module 25 are in the mains-supplied pattern; When second output of Power Entry Module 25 did not have power supply signal output, powered battery control module 24 made power transfer module 25 be in battery powered mode according to second control signal of detection module 23 outputs.
In embodiments of the present invention, the L1 of civil power 10 outputs and L2 are two-phase input live wire, and N is a zero line, and the L1 live wire is as the main circuit line, and external ballast 12 is given in power supply, is connected to switching device usually, and the L2 live wire is emergent live wire, can not connect switching device.When civil power L1, L2 input was arranged, L1 arrived external ballast 12, light sources 13 such as deactivation gaseous discharge lamp through power transfer module 25; L2 is through rectification module 22, and detection module 23 makes powered battery control module 24 not produce high pressure output, makes power transfer module 25 place the mains-supplied pattern simultaneously.L2 is also for external charge circuit 6 provides power supply simultaneously, and the direct current that its generation is needed is the battery charge in the powered battery control module 24.When L2 has civil power, when L1 does not have electricity, repeat said process, but, do not have electricity to supply with external ballast 12, so light source can not work because of L1 does not have electricity.When live wire L2 does not have electricity (and this moment, no matter whether L1 had), 23 pairs of powered battery control modules 24 of detection module, power transfer module 25 produce control, battery in the powered battery control module 24 produces high pressure and outputs to power transfer module 25, and this moment, power transfer module 25 was placed in battery powered mode, made high voltage can supply with external ballast 12.Be connected to switching device on the L1, emergency light of the present invention promptly can be used as ordinary lamps and uses, and can open and can close, but because of the existence of live wire L2, not influence emergency function.
Fig. 2, Fig. 3 and Fig. 4 show the physical circuit of the emergency light control circuit that the embodiment of the invention provides respectively, for convenience of explanation, only show the part relevant with the embodiment of the invention, and details are as follows.
In embodiments of the present invention, the voltage of first sample circuit 231 and 22 outputs of 232 pairs of rectification modules of second sample circuit is sampled after export induced signal behind the photoelectrical coupler U1; First amplifying circuit 234 amplifies back output with induced signal and characterizes first drive signal or non-existent second drive signal of sign civil power that civil power exists; Switch control signal generating circuit 235, is perhaps exported in order to second control signal of Switching power modular converter 25 to the powered battery state according to second drive signal in order to first control signal of Switching power modular converter 25 to the mains-supplied state according to the output of first drive signal; Reference source circuit 233 is used to emergency signal testing circuit 236 that a reference voltage is provided; The input of emergency signal testing circuit 236 connects the output of first amplifying circuit 234, utilizes operational amplifier that the signal and the above-mentioned reference voltage of input are compared, when to be judged to be input be above-mentioned second drive signal, and the emergent control signal of output; Second amplifying circuit 237 is used for emergent control signal is carried out exporting in order to start the control signal of powered battery control module 24 after the processing and amplifying.
Wherein, first sample circuit 231 comprises: be connected in series in resistance R 26 and resistance R 28 between the negative electrode of diode among the anode of diode D3 and the photoelectrical coupler U1 successively; Be connected in series in resistance R 27 and resistance R 29 between the negative electrode of diode among the anode of diode D3 and the photoelectrical coupler U1 successively; Resistance R 26 is held the end that is connected in series that also is connected to resistance R 27 and resistance R 29 with being connected in series of resistance R 28.
First amplifying circuit 234 comprises: triode Q1, triode Q2, capacitor C 1 and resistance R 2; Wherein the base stage of triode Q1 is connected the input of back as first amplifying circuit 234 with the base stage of triode Q2, the collector electrode of triode Q1 is connected to power supply VCC, the emitter of triode Q1 is connected to the collector electrode of triode Q2, the grounded emitter of triode Q2, the link that the emitter of triode Q1 is connected with the collector electrode of triode Q2 is as the output of first amplifying circuit 234; Capacitor C 1 is connected between the input and ground of first amplifying circuit 234; Resistance R 2 is connected in parallel with capacitor C 1.
Switch control signal generating circuit 235 comprises: triode Q6, resistance R 8 and resistance R 10; Wherein an end of resistance R 8 is as the input of switch control signal generating circuit 235, and the other end of resistance R 8 is connected to the base stage of triode Q6; The base stage of triode Q6 is also passed through resistance R 10 ground connection, the grounded emitter of triode Q6, and the collector electrode of triode Q6 is as the output of switch control signal generating circuit 235.
Emergency signal testing circuit 236 comprises: triode Q3, amplifier chip U2 and peripheral circuit thereof; Wherein amplifier chip U2 comprises 8 pins, the 1st pin is connected to power supply VCC by resistance R 7 and the resistance R 9 that is connected in series, the 2nd pin and the 6th pin are as the reference voltage end of emergency signal testing circuit 236, the 3rd pin is connected to the anode of diode D6, the 4th pin ground connection, the 5th pin is connected to an end of resistance R 15, and the 7th pin is as the output of emergency signal testing circuit 236; The 8th pin is connected to power supply VCC; The negative electrode of diode D6 is as the input of emergency signal testing circuit 236; Capacitor C 10 is connected between the negative electrode and ground of diode D6; Capacitor C 2 is connected between the anode and ground of diode D6; Resistance R 6 is connected between the negative electrode and anode of diode D6; Resistance R 32 is connected between the anode and ground of diode D6; The end that is connected in series of resistance R 7 and resistance R 9 is connected to base stage and the collector electrode of triode Q3, and the collector electrode of triode Q3 also is connected to power supply VCC by resistance R 38, resistance R 3 and resistance R 4 ground connection of the emitter of triode Q3 by being connected in series successively; The end that is connected in series of resistance R 3 and resistance R 4 is connected to the other end of resistance R 15; Capacitor C 8 is connected in parallel with resistance R 3; The anode of diode D7 is connected to the other end of resistance R 15, and the negative electrode of diode D7 is connected to the 7th pin of amplifier chip U2 by resistance R 5; Capacitor C 13 is connected between power supply VCC and the ground, and capacitor C 22 is connected in parallel with capacitor C 13.
Second amplifying circuit 237 comprises: triode Q4, triode Q5, resistance R 11, resistance R 12 and resistance R 13; Wherein an end of resistance R 11 is as the input of second amplifying circuit 237, and the other end of resistance R 11 is connected with the base stage of triode Q4; The base stage of triode Q4 also is connected to the emitter of triode Q4 by resistance R 12, the emitter of triode Q4 is connected to power supply VCC, the collector electrode of triode Q4 is by resistance R 13 ground connection, the collector electrode of triode Q4 also is connected to the base stage of triode Q5, and the emitter of triode Q5 is connected to power supply VCC; The collector electrode of triode Q5 is as the output of second amplifying circuit 237.
In embodiments of the present invention, first amplifying circuit 234 is a push-pull circuit, and when push-pull circuit output high level, triode Q6 conducting makes and exports first control signal; When the push-pull circuit output low level, not conducting of triode Q6 then makes and exports second control signal; When the push-pull circuit output low level, the level height of level ratio the 3rd pin of the 2nd pin of amplifier chip U2, the output high level, triode Q3 conducting, and then, utilize an operational amplifier to compare again through after 4 samplings of resistance R 3 and resistance R, if when being lower than the reference level of reference source circuit 233 outputs, then the emergent control signal of output is exported to powered battery control module 24 then after two-stage is amplified.
In embodiments of the present invention, detection module 23 also comprises diode D5, resistance R 35 and capacitor C 23; Wherein the anode of diode D5 is connected to the negative electrode of diode among the photoelectrical coupler U1, the negative electrode of diode D5 is connected to the anode of diode among the photoelectrical coupler U1, resistance R 35 is connected between the negative electrode and anode of diode D5, and capacitor C 23 is connected in parallel with resistance R 35.
Powered battery control module 24 comprises: transformer TRAN1, triode T2, T3, metal-oxide-semiconductor T4, T5, chip U3 and peripheral circuit thereof; Chip U3 comprises 16 pins, and the 1st pin is by capacitor C 21 ground connection, and the 2nd pin is connected to the 14th pin and the 15th pin by resistance R 17, resistance R 15, capacitor C 14 and the resistance R 14 that is connected in series successively; The end that is connected in series of resistance R 17 and resistance R 15 is connected to the 3rd pin; The end that is connected in series of capacitor C 14 and resistance R 14 is connected to the 2nd pin; The 3rd pin also is connected to the 13rd pin by capacitor C 15 and the resistance R 16 that is connected in series successively, the end that is connected in series of capacitor C 15 and resistance R 16 also is connected to the 15th pin, the 4th pin is by resistance R 18 ground connection, the 5th pin is by capacitor C 18 ground connection, the 6th pin is by resistance R 20 ground connection, the direct ground connection of the 7th pin; The 8th pin, the 12nd pin and the 11st pin are connected the back by capacitor C 4 ground connection; Capacitor C 18 is connected in parallel with capacitor C 4; The 9th pin is connected to the base stage of triode T3, and the 10th pin is connected to the base stage of triode T2, and the 11st pin is connected with detection module 23; The anode of diode D9 is connected to the 9th pin of chip U3, the anode of diode D9 is also by resistance R 21 ground connection, the negative electrode of diode D9 is connected to the emitter of triode T3, the grounded collector of triode T3, and the negative electrode of diode D9 also is connected to the grid of metal-oxide-semiconductor T5 by resistance R 31; The source ground of metal-oxide-semiconductor T5; The anode of diode D8 is connected to the 10th pin of chip U3, the anode of diode D8 is also by resistance R 19 ground connection, the negative electrode of diode D8 is connected to the emitter of triode T2, the grounded collector of triode T2, and the negative electrode of diode D8 also is connected to the grid of metal-oxide-semiconductor T4 by resistance R 30; The source ground of metal-oxide-semiconductor T4; One end of the elementary winding of transformer TRAN1 is connected to the drain electrode of metal-oxide-semiconductor T4, the other end of the elementary winding of transformer TRAN1 is connected to the drain electrode of metal-oxide-semiconductor T5, and the intermediate point of the elementary winding of transformer TRAN1 is by four capacitor C that are connected in parallel 3, capacitor C 17, capacitor C 20 and capacitor C 19 ground connection; The intermediate point of the elementary winding of transformer TRAN1 also is connected to binding post J2 by fuse F2; The anode of diode D16 is connected to binding post J2, and the negative electrode of diode D16 is connected to described power supply VCC by switch S 2, and switch S 1 is connected in parallel with switch S 2; The negative electrode of diode D17 is connected to described power supply VCC, and the anode of diode D17 is connected to the pin of binding post J4, another pin ground connection of binding post J4; The anode of diode D18 is connected to the pin of binding post J4, and the negative electrode of diode D18 is connected to the intermediate point of the elementary winding of transformer TRAN1; One end of the secondary winding of transformer TRAN1 is connected to the anode of diode D12, and the other end of the secondary winding of transformer TRAN1 is connected to the anode of diode D13, and the negative electrode of diode D12 is connected to the anode of diode D14; The negative electrode of diode D13 is connected to the anode of diode D15; The 1st pin that the negative electrode of diode D14 is connected to chip U3 by the resistance R 25A, the resistance R 25B that are connected in series successively and resistance R 25; The end that is connected in series of resistance R 25A and resistance R 25B is by resistance R 24 ground connection; The negative electrode that the end that is connected in series of resistance R 25B and resistance R 25 is connected to diode D15 by the resistance R 23 that is connected in series successively and capacitor C 1.
In embodiments of the present invention, when L1, N end and L2, N end add civil power respectively (as alternating current 220V), the civil power of L1 is input to power transfer module 25 through the filtering of capacitor C 6, capacitor C 7, capacitor C 5, transformer T1 and capacitor C 11; The civil power of L2 is through diode D1, diode D2, diode D3, the laggard photoelectrical coupler U1 of diode D4 rectification, because of the effect of photoelectrical coupler U1 makes that the emitter of triode Q1 is a high voltage, triode Q6 conducting, relay K 1 action, the L1 civil power will be given external ballast 12 power supplies like this, and powered battery disconnects, and this is the normal illumination state.When L2 does not have electricity, promptly enter the emergency lighting state, this moment, photoelectrical coupler U1 did not work, not conducting of triode Q6, relay K 1 is failure to actuate, and battery provides the power supply of external ballast 12.
The emergency light control circuit that the embodiment of the invention provides adopts detection module output control signal and controls power transfer module and is in mains-supplied pattern or battery powered mode, makes emergency light can also use as general lighting simultaneously; Adopt photoelectric coupled device to isolate between the input of detection module and civil power in addition, can not influence the illumination functions of electric power system and main circuit, can also effectively isolate, do not disturb mutually.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an emergency light control circuit is characterized in that, comprising: Power Entry Module, rectification module, detection module, power transfer module and powered battery control module;
First output of described Power Entry Module is connected to the mains-supplied end of described power transfer module, and the output of described power transfer module connects ballast;
Second output of described Power Entry Module is connected to the input of described rectification module, the output of described rectification module is connected to the input of described detection module, and the output of described detection module is connected to the control end of described powered battery control module and the control end of described power transfer module;
The output of described powered battery control module is connected to the powered battery end of described power transfer module; The input of described powered battery control module is connected to the output of charging circuit, and the input of described charging circuit is connected to second output of described Power Entry Module;
When first output of described Power Entry Module and second output had power supply signal output simultaneously, the main power source of first output output of described Power Entry Module was through giving described ballast power supply after the described power transfer module; The emergency power supply of second output of described Power Entry Module output is through after the described rectification module rectification, and described detection module is exported first control signal and controlled described power transfer module and be in the mains-supplied pattern;
When second output of described Power Entry Module did not have power supply signal output, described powered battery control module was controlled described power transfer module according to second control signal of described detection module output and is in battery powered mode.
2. emergency light control circuit as claimed in claim 1 is characterized in that, described Power Entry Module comprises:
Fuse F1, capacitor C 5, capacitor C 6, capacitor C 7, capacitor C 11 and transformer T1;
The end of described fuse F1 connects the main live wire of civil power, and the other end of described fuse F1 is connected to an end of the primary coil of described transformer T1; The other end of the primary coil of described transformer T1 is connected with described power transfer module; One end of the secondary coil of described transformer T1 is connected to the zero line of civil power, and the other end of the secondary coil of described transformer T1 is connected with described power transfer module;
Described capacitor C 6 and described capacitor C 7 are connected in series between the zero line of the other end of described fuse and civil power successively, the end ground connection that is connected in series of described capacitor C 6 and described capacitor C 7;
Described capacitor C 5 is connected between the zero line of the other end of described fuse and civil power;
Described capacitor C 11 is connected between the other end of secondary coil of the other end of primary coil of described transformer T1 and described transformer T1.
3. emergency light control circuit as claimed in claim 2 is characterized in that, described rectification module comprises:
Diode D1, diode D2, diode D3 and diode D4;
The anode of described diode D1 is connected to the zero line of described civil power, and the anode of described diode D2 is connected to the emergent live wire of described civil power, and the negative electrode of described diode D2 is connected with the negative electrode of described diode D1;
The negative electrode of described diode D3 is connected to the emergent live wire of described civil power, and the negative electrode of described diode D4 is connected to the zero line of described civil power, and the anode of described diode D4 is connected to the anode of described diode D3.
4. emergency light control circuit as claimed in claim 3 is characterized in that, described power transfer module comprises:
Relay, diode D10 and diode D11;
First normally-closed contact of described relay is unsettled not to be connect, first normally opened contact is connected to the other end of the primary coil of described transformer T1, second normally-closed contact is connected to the anode of diode D10, second normally opened contact is connected to the other end of the secondary coil of described transformer T1, and first common is connected ballast with second common by binding post;
The minus earth of described diode D10;
One end of the coil of described relay is connected to power supply;
The negative electrode of described diode D11 is connected to power supply, and the anode of described diode D11 is connected to the other end of the coil of described relay.
5. emergency light control circuit as claimed in claim 4 is characterized in that, described detection module comprises:
Photoelectrical coupler U1, first sample circuit, second sample circuit, reference source circuit, first amplifying circuit, switch control signal generating circuit, emergency signal testing circuit and second amplifying circuit;
The input of the input of described first sample circuit and described second sample circuit is as the input of described detection module, and the output of the output of described first sample circuit and described second sample circuit is connected to the input of described photoelectrical coupler U1;
The output of described photoelectrical coupler U1 is connected to the input of described first amplifying circuit;
The input of described switch control signal generating circuit is connected to the output of described first amplifying circuit, and the output of described switch control signal generating circuit is connected to the control end of described power transfer module;
The input of described emergency signal testing circuit is connected to the output of described first amplifying circuit, the reference voltage end of described emergency signal testing circuit connects the output of described reference source circuit, and the output of described emergency signal testing circuit is connected to the input of described second amplifying circuit;
The output of described second amplifying circuit is connected to the control end of described powered battery control module;
When first amplifying circuit had signal output, described switch control signal generating circuit conducting made output in order to first control signal of Switching power modular converter to the mains-supplied state; When first amplifying circuit did not have signal output, described emergency signal testing circuit compared the voltage of input and the voltage of described reference voltage end, according to second control signal of comparative result output in order to startup powered battery control module.
6. emergency light control circuit as claimed in claim 5 is characterized in that, described first amplifying circuit comprises:
Triode Q1, triode Q2, capacitor C 1 and resistance R 2;
The base stage of triode Q1 is connected the input of back as described first amplifying circuit with the base stage of described triode Q2, the collector electrode of triode Q1 is connected to described power supply VCC, the emitter of triode Q1 is connected to the collector electrode of triode Q2, the grounded emitter of triode Q2, the link that the emitter of triode Q1 is connected with the collector electrode of described triode Q2 is as the output of described first amplifying circuit;
Capacitor C 1 is connected between the input and ground of described first amplifying circuit;
Resistance R 2 is connected in parallel with described capacitor C 1.
7. emergency light control circuit as claimed in claim 6 is characterized in that, described switch control signal generating circuit comprises:
Triode Q6, resistance R 8 and resistance R 10;
One end of described resistance R 8 is as the input of described switch control signal generating circuit, and the other end of described resistance R 8 is connected to the base stage of described triode Q6;
The base stage of described triode Q6 is also passed through resistance R 10 ground connection, the grounded emitter of described triode Q6, and the collector electrode of described triode Q6 is as the output of described switch control signal generating circuit.
8. emergency light control circuit as claimed in claim 7 is characterized in that, described emergency signal testing circuit comprises:
Triode Q3, amplifier chip U2 and peripheral circuit thereof;
Described amplifier chip U2 comprises 8 pins, the 1st pin is connected to described power supply VCC by resistance R 7 and the resistance R 9 that is connected in series, the 2nd pin and the 6th pin are as the reference voltage end of described emergency signal testing circuit, the 3rd pin is connected to the anode of diode D6, the 4th pin ground connection, the 5th pin is connected to an end of resistance R 15, and the 7th pin is as the output of described emergency signal testing circuit; The 8th pin is connected to described power supply VCC;
The negative electrode of described diode D6 is as the input of described emergency signal testing circuit;
Capacitor C 10 is connected between the negative electrode and ground of described diode D6;
Capacitor C 2 is connected between the anode and ground of described diode D6;
Resistance R 6 is connected between the negative electrode and anode of diode D6;
Resistance R 32 is connected between the anode and ground of diode D6;
The end that is connected in series of resistance R 7 and resistance R 9 is connected to base stage and the collector electrode of described triode Q3, the collector electrode of described triode Q3 also is connected to described power supply VCC by resistance R 38, resistance R 3 and resistance R 4 ground connection of the emitter of described triode Q3 by being connected in series successively; The end that is connected in series of resistance R 3 and resistance R 4 is connected to the other end of described resistance R 15;
Capacitor C 8 is connected in parallel with resistance R 3;
The anode of diode D7 is connected to the other end of resistance R 15, and the negative electrode of diode D7 is connected to the 7th pin of amplifier chip U2 by resistance R 5;
Capacitor C 13 is connected between described power supply VCC and the ground, and capacitor C 22 is connected in parallel with described capacitor C 13.
9. emergency light control circuit as claimed in claim 8 is characterized in that, described second amplifying circuit comprises:
Triode Q4, triode Q5, resistance R 11, resistance R 12 and resistance R 13;
One end of resistance R 11 is as the input of described second amplifying circuit, and the other end of resistance R 11 is connected with the base stage of triode Q4;
The base stage of triode Q4 also is connected to the emitter of triode Q4 by resistance R 12, the emitter of triode Q4 is connected to described power supply VCC, the collector electrode of triode Q4 is by resistance R 13 ground connection, the collector electrode of triode Q4 also is connected to the base stage of triode Q5, and the emitter of triode Q5 is connected to described power supply VCC; The collector electrode of triode Q5 is as the output of described second amplifying circuit.
10. emergence lighting lamp that comprises the described emergency light control circuit of claim 1.
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CN 201010111461 CN101801131B (en) | 2010-02-08 | 2010-02-08 | Emergency lamp control circuit and emergency illumination lamp fitting |
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