CN105072766A - Multifunctional emergency lamp power supply device and control method thereof - Google Patents
Multifunctional emergency lamp power supply device and control method thereof Download PDFInfo
- Publication number
- CN105072766A CN105072766A CN201510518112.0A CN201510518112A CN105072766A CN 105072766 A CN105072766 A CN 105072766A CN 201510518112 A CN201510518112 A CN 201510518112A CN 105072766 A CN105072766 A CN 105072766A
- Authority
- CN
- China
- Prior art keywords
- voltage
- resistance
- circuit
- optocoupler
- 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.)
- Granted
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a multifunctional emergency lamp power supply device, which comprises a switch power supply device, a battery module circuit, a control circuit and a step-up constant current circuit. the emergency lamp and a common lighting lamp are integrated, dual functions of the emergency lamp and the common lighting lamp are considered, three working states: an emergency working state, a normal working state and a fault state are designed to enable the LED lamp to have different current working states, and the device can be more used to various external environmental conditions.
Description
Technical field
The present invention relates to a kind of emergency light and control method, particularly relate to a kind of multifunctional emergency light supply unit and control method thereof, this control method is applicable to various emergency driving power supply, charging device or light-emitting device etc.
Background technology
Widely, present emergency power supply major part adopts simple and mechanical on-off mode to the purposes of emergency driving power supply, needs hand switch when power-off.Market also has does not need hand switch, but its light can not regulate, and battery power consumption is very fast, needs battery capacity larger, does not work at ordinary times in addition, and when only having power-off, ability is bright.These emergency light driving power circuit function singlenesses similar, do not integrate, can not control, use inconvenience for various ambient condition.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of multifunctional emergency light supply unit, comprises switching power circuit, battery module circuit, control circuit and voltage increase and current constant circuit, former limit is adopted to feed back IC1 in described switching power circuit, it comprises current rectifying and wave filtering circuit, DC-DC conversion circuit and direct current regulation circuit, the input access civil power of described current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with the input of DC-DC conversion circuit, the input of described direct current regulation circuit is connected with the output of DC-DC conversion circuit, the described input of battery module circuit is connected with the output of direct current regulation circuit, described DC-DC conversion circuit, direct current regulation circuit, , the output of described battery module circuit is connected with the input of voltage increase and current constant circuit, the output of described voltage increase and current constant circuit is connected with LED, be connected with control circuit input after the output connection divider resistance of current rectifying and wave filtering circuit, described control circuit comprises comparator IC2 and testing circuit, described testing circuit connects the L of civil power, N two ends also provide a reference voltage value, the comparator IC2 adopted in described control circuit provides a comparing voltage value after comparing this reference voltage value, the light modulation IC3 adopted in described voltage increase and current constant circuit exports corresponding current value according to this comparing voltage value to LED.
Further, described current rectifying and wave filtering circuit comprises EMI filter circuit and the rectifier bridge BD1 of safe electric capacity CX1, common mode inductance LF1 and resistance R1, R2 composition, described DC-DC conversion circuit comprises the filter circuit that IC1, diode D8 and electrochemical capacitor EC6, common mode inductance LF2 and electrochemical capacitor EC7 form, and described direct current regulation circuit comprises IC1, resistance R5, R6, R7 and transformer; After described civil power L termination fuse F1, carry out rectification through EMI filter circuit to rectifier bridge BD1 and transfer interchange input to direct current output, then obtain the output of High Power Factor direct current through the paddy circuit filtering of filling out that electrochemical capacitor EC1, EC2 and diode D1, D2, D3 are formed; IC1 control transformer armature winding TR1 produces the AC energy of conversion and is coupled on secondary winding TR3, secondary winding TR3 is rectified into direct current through diode D8 again, after the filter circuit that electrochemical capacitor EC6, common mode inductance LF2, electrochemical capacitor EC7 form, obtain galvanic current pressure, diode D4, resistance R3, resistance R4 and electric capacity C2 form RCD clamper absorbing circuit; Resistance R5, R6, R7 one end connects the FB pin of IC1, winding TR2 assisted by another termination transformer of resistance R5, be 2.0V reference voltage relation according to the turn ratio of auxiliary winding TR2 and secondary winding TR3 and the inner FB pin of IC1, provide the negative-feedback signal of secondary winding TR3 and armature winding TR1, make secondary winding TR3 export a stable voltage to battery module circuit; The CS heel that resistance R9 connects IC1 carries out overload protection according to the magnitude of voltage on resistance R9.
Further, described control circuit comprises resistance R23, one end of this resistance R23 connects voltage stabilizing didoe U1, the other end connects the VCC pin of IC2, this resistance R23 connects the in-phase end of comparator IC2 by resistance R26, rectifier bridge BD1 positive pole is by divider resistance R12, R13, R14 ground connection, and the divider resistance R14 other end receives the end of oppisite phase of comparator IC2 by resistance R24; VCC pin connects optocoupler PH, and the collector electrode of contact resistance R18 and triode Q1, triode Q1 is connected to resistance R14 by resistance R20.
Further, described testing circuit comprises L, N two ends and is connected to electric capacity C7, resistance R22 and rectifier bridge BR2, and obtain the direct voltage of a small area analysis, optocoupler PH2 is received by electrochemical capacitor EC5 filtering and resistance R21 current limliting, the collector electrode of optocoupler PH2 connecting triode Q2, triode Q2 connects the DIM pin of light modulation IC3.
Further, described direct current regulation circuit comprises resistance R32, R33, R34 and voltage stabilizing didoe U2, battery module circuit output end voltage V+ by obtaining burning voltage V1 after resistance R32, R33, R34 and voltage stabilizing didoe U2, this burning voltage V1=(2.5*R33)/R34.
Further, described voltage increase and current constant circuit comprises inductance L 2, light modulation IC3, diode D12 and electrochemical capacitor EC10, battery module circuit output end voltage V
+voltage V is obtained via inductance L 2, light modulation IC3 and diode D12 again through electrochemical capacitor EC9 filtering
eC10; Be connected to resistance R42 between the output of light modulation IC3 and LED, resistance R42 two ends connect ISP pin and the ISN pin of light modulation IC3 respectively, voltage V
eC10=V
r42+ V
lED, LED electric current I
lED=(V
iSP-V
iSN)/R
42; The DIM pin of described light modulation IC3 is connected to resistance R39, R40, detects voltage V
dIM=(V
1* R40)/(R39+R40); Battery module circuit output end V
+the DIM pin of light modulation IC3 is received by resistance R36, R37, R38, optocoupler PH1 and diode D11.
A control method for multifunctional emergency light supply unit, comprises three operating states of standby mode of operation, normal operating conditions and firmware-error state; The operating state of emergency light is by controlling the detection voltage V of the DIM pin of light modulation IC3
dIMcontrol accordingly; When L, N hold input voltage be less than reference voltage, voltage V
r14during <2.5V, the VCC end of comparator IC2 exports high level, and optocoupler PH1 ends; When L, N hold input voltage reach reference voltage, now voltage V
r14the VCC end upset output low level of >2.5V, comparator IC2, optocoupler PH1 conducting; When L, N terminal voltage is greater than reference voltage, now voltage V
r14the VCC of >2.5V, comparator IC2 holds output low level, when making optocoupler PH1 conducting, and triode Q1 conducting; The conducting of optocoupler PH1 and cut-ff voltage form anti-erroneous judgement return difference; Described reference voltage V
ac=176V.
Further, when described LED is small area analysis operating state, described standby mode of operation is divided into two kinds of situations,
1, L, N hold input voltage be less than 176V and L end be in ON state, this state belongs to electrical network low voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 conducting, triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMdrop between 1.2V-2.4V, realize the small area analysis operating state of LED;
2, L, N input voltage be less than 176V and L end be in OFF state, this state belongs to electrical network no-voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 ends, and triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMvoltage drops between 1.2V-2.4V, realizes the small area analysis operating state of LED.
Further, when L, N hold input voltage higher than 176V and L end be in ON state, this state belongs to normal operating conditions;
When input voltage equals 176V, voltage V
r14=2.5V; When L, N hold input voltage to be greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 conducting, the base voltage Vb=0V of triode Q2, triode Q2 end; V can be made by regulating resistance R38 resistance
dIMmuch larger than 2.4V, the V of light modulation IC3
iSPwith V
iSNbetween clamp voltage be 200mv, the output current I of LED
led=200mV/R42, thus the big current operating state realizing LED.
Further, when L, N hold input voltage higher than 176V and L end be in OFF state, this state belongs to firmware-error state;
When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 ends, ground level and the transmitting interstage voltage V of triode Q2
be>0.7V, triode Q2 conducting, V
dIM=0V, light modulation IC3 does not work, and LED does not work.
Beneficial effect of the present invention makes emergency light and normal illumination lamp combine, take into account the dual-use function of emergency light and general lighting lamp simultaneously, the standby mode of operation designed, normal operating conditions and these three kinds of operating states of firmware-error state make LED realize the operating state of different electric current, more can adapt to various external environment condition.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the circuit module schematic diagram of multifunctional emergency light supply unit of the present invention;
Fig. 2 is the circuit theory schematic diagram of multifunctional emergency light supply unit of the present invention;
Fig. 3 is V of the present invention
dIMwith V
iSP-V
iSNvoltage relationship figure.
Embodiment
Refer to Fig. 1, be a kind of multifunctional emergency light supply unit as most preferred embodiment of the present invention, comprise switching power circuit, battery module circuit, control circuit and voltage increase and current constant circuit, former limit is adopted to feed back IC1 in described switching power circuit, it comprises current rectifying and wave filtering circuit, DC-DC conversion circuit and direct current regulation circuit, the input access civil power of described current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with the input of DC-DC conversion circuit, the input of described direct current regulation circuit is connected with the output of DC-DC conversion circuit, the described input of battery module circuit is connected with the output of direct current regulation circuit, described DC-DC conversion circuit, direct current regulation circuit, , the output of described battery module circuit is connected with the input of voltage increase and current constant circuit, the output of described voltage increase and current constant circuit is connected with LED, be connected with control circuit input after the output connection divider resistance of current rectifying and wave filtering circuit, described control circuit comprises comparator IC2 and testing circuit, described testing circuit connects the L of civil power, N two ends also provide a reference voltage value, the comparator IC2 adopted in described control circuit provides a comparing voltage value after comparing this reference voltage value, the light modulation IC3 adopted in described voltage increase and current constant circuit exports corresponding current value according to this comparing voltage value to LED.
Refer to Fig. 2, described IC1 adopts PN8360 former limit Feedback Design, and IC2 is LM385 comparator, and IC3 designs for adopting JW1130, U1 and U2 is TL431.Described current rectifying and wave filtering circuit comprises EMI filter circuit and the rectifier bridge BD1 of safe electric capacity CX1, common mode inductance LF1 and resistance R1, R2 composition, described DC-DC conversion circuit comprises the filter circuit that IC1, diode D8 and electrochemical capacitor EC6, common mode inductance LF2 and electrochemical capacitor EC7 form, and described direct current regulation circuit comprises IC1, resistance R5, R6, R7 and transformer; After described civil power L termination fuse F1, carry out rectification through EMI filter circuit to rectifier bridge BD1 and transfer interchange input to direct current output, then obtain the output of High Power Factor direct current through the paddy circuit filtering of filling out that electrochemical capacitor EC1, EC2 and diode D1, D2, D3 are formed; IC1 control transformer armature winding TR1 produces the AC energy of conversion and is coupled on secondary winding TR3, secondary winding TR3 is rectified into direct current through diode D8 again, galvanic current pressure is obtained after the filter circuit that electrochemical capacitor EC6, common mode inductance LF2, electrochemical capacitor EC7 form, diode D4, resistance R3, resistance R4 and electric capacity C2 form RCD clamper absorbing circuit, absorb the peak voltage that transformer produces because of leakage inductance, prevent the built-in metal-oxide-semiconductor of IC1 from puncturing; Resistance R5, R6, R7 one end connects the FB pin of IC1, winding TR2 assisted by another termination transformer of resistance R5, be 2.0V reference voltage relation according to the turn ratio of auxiliary winding TR2 and secondary winding TR3 and the inner FB pin of IC1, provide the negative-feedback signal of secondary winding TR3 and armature winding TR1, make secondary winding TR3 export a stable voltage to battery module circuit; Resistance R9, R10 and R11 are in parallel and be connected the CS pin of IC1, are used for detection peak electric current.Carry out overload protection according to the magnitude of voltage on resistance R9, when the voltage on R9 just can turn off output more than IC1 during 0.5V, produce protection, prevent overload from exporting.
Described control circuit comprises resistance R23, one end of this resistance R23 connects voltage stabilizing didoe U1, the other end connects the VCC pin of IC2, this resistance R23 connects the in-phase end of comparator IC2 by resistance R26, rectifier bridge BD1 positive pole is by divider resistance R12, R13, R14 ground connection, and the divider resistance R14 other end receives the end of oppisite phase of comparator IC2 by resistance R24; VCC pin connects optocoupler PH, and the collector electrode of contact resistance R18 and triode Q1, triode Q1 is connected to resistance R14 by resistance R20.
Described testing circuit comprises L, N two ends and is connected to electric capacity C7, resistance R22 and rectifier bridge BR2, and obtain the direct voltage of a small area analysis, optocoupler PH2 is received by electrochemical capacitor EC5 filtering and resistance R21 current limliting, the collector electrode of optocoupler PH2 connecting triode Q2, triode Q2 connects the DIM pin of light modulation IC3.
Described direct current regulation circuit comprises resistance R32, R33, R34 and voltage stabilizing didoe U2, battery module circuit output end voltage V+ by obtaining burning voltage V1 after resistance R32, R33, R34 and voltage stabilizing didoe U2, this burning voltage V1=(2.5*R33)/R34.
Battery in described battery module circuit adopts 12V nickel-cadmium cell, and LED is 30V constant current output, and so needing 12V boost in voltage is 30V constant current output.The 8pinEN/DIM pin of the light modulation IC3 of voltage increase and current constant circuit can be used for simulating light modulation, and EN/DIM pin voltage is V
dIM.V in battery module circuit
+for fixing voltage, V
batteryfor cell voltage, so the voltage of R31 is V
+-V
battery, charging current is (V
+-V
battery)/R31.Wherein diode D9 has been buffer action, prevents battery from filling; Diode D10 act as when AC inputs without alternating current, V
+for 0V, battery is powered to LED through D10.Described voltage increase and current constant circuit comprises inductance L 2, light modulation IC3, diode D12 and electrochemical capacitor EC10, battery module circuit output end voltage V
+voltage V is obtained via inductance L 2, light modulation IC3 and diode D12 again through electrochemical capacitor EC9 filtering
eC10; Be connected to resistance R42 between the output of light modulation IC3 and LED, resistance R42 two ends connect ISP pin and the ISN pin of light modulation IC3 respectively, voltage V
eC10=V
r42+ V
lED, LED electric current I
lED=(V
iSP-V
iSN)/R
42; The DIM pin of described light modulation IC3 is connected to resistance R39, R40, detects voltage V
dIM=(V
1* R40)/(R39+R40); Battery module circuit output end V
+the DIM pin of light modulation IC3 is received by resistance R36, R37, R38, optocoupler PH1 and diode D11.
In Fig. 2, CY1 and CY2 is safe electric capacity, and other unaccounted resistive elements are conventional setting, therefore do not set forth further.
Refer to Fig. 3, work as V
dIMvoltage range when 1.2-2.4V, the V of light modulation IC3
iSP-V
iSNinduced voltage is 0-200mv, and V
iSP-V
iSNwith V
dIMincrease and increase; V
dIMduring <1.2V, V
iSP-V
iSNinduced voltage is 0V; V
dIMduring >2.4V, V
iSP-V
iSNinduced voltage is 200mV.
The control method of this multifunctional emergency light supply unit, comprises three operating states of standby mode of operation, normal operating conditions and firmware-error state; The operating state of emergency light is by controlling the detection voltage V of the DIM pin of light modulation IC3
dIMcontrol accordingly; When L, N hold input voltage be less than reference voltage, voltage V
r14during <2.5V, the VCC end of comparator IC2 exports high level, and optocoupler PH1 ends; When L, N hold input voltage reach reference voltage, now voltage V
r14the VCC end upset output low level of >2.5V, comparator IC2, optocoupler PH1 conducting; When L, N terminal voltage is greater than reference voltage, now voltage V
r14the VCC of >2.5V, comparator IC2 holds output low level, when making optocoupler PH1 conducting, and triode Q1 conducting; The conducting of optocoupler PH1 and cut-ff voltage form anti-erroneous judgement return difference; Described reference voltage V
ac=176V.
When described LED is small area analysis operating state, described standby mode of operation is divided into two kinds of situations,
1, L, N hold input voltage be less than 176V and L end be in ON state, this state belongs to electrical network low voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 conducting, triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMdrop between 1.2V-2.4V, realize the small area analysis operating state of LED;
2, L, N input voltage be less than 176V and L end be in OFF state, this state belongs to electrical network no-voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 ends, and triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMvoltage drops between 1.2V-2.4V, realizes the small area analysis operating state of LED.
When L, N hold input voltage higher than 176V and L end be in ON state, this state belongs to normal operating conditions;
When input voltage equals 176V, voltage V
r14=2.5V; When L, N hold input voltage to be greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 conducting, the base voltage Vb=0V of triode Q2, triode Q2 end; V can be made by regulating resistance R38 resistance
dIMmuch larger than 2.4V, the V of light modulation IC3
iSPwith V
iSNbetween clamp voltage be 200mv, the output current I of LED
led=200mV/R42, thus the big current operating state realizing LED.
When L, N hold input voltage higher than 176V and L end be in OFF state, this state belongs to firmware-error state;
When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 ends, ground level and the transmitting interstage voltage V of triode Q2
be>0.7V, triode Q2 conducting, V
dIM=0V, light modulation IC3 does not work, and LED does not work.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a multifunctional emergency light supply unit, is characterized in that, comprises switching power circuit, battery module circuit, control circuit and voltage increase and current constant circuit, former limit is adopted to feed back IC1 in described switching power circuit, it comprises current rectifying and wave filtering circuit, DC-DC conversion circuit and direct current regulation circuit, the input access civil power of described current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with the input of DC-DC conversion circuit, the input of described direct current regulation circuit is connected with the output of DC-DC conversion circuit, the described input of battery module circuit is connected with the output of direct current regulation circuit, described DC-DC conversion circuit, direct current regulation circuit, , the output of described battery module circuit is connected with the input of voltage increase and current constant circuit, the output of described voltage increase and current constant circuit is connected with LED, be connected with control circuit input after the output connection divider resistance of current rectifying and wave filtering circuit, described control circuit comprises comparator IC2 and testing circuit, described testing circuit connects the L of civil power, N two ends also provide a reference voltage value, the comparator IC2 adopted in described control circuit provides a comparing voltage value after comparing this reference voltage value, the light modulation IC3 adopted in described voltage increase and current constant circuit exports corresponding current value according to this comparing voltage value to LED.
2. multifunctional emergency light supply unit according to claim 1, it is characterized in that, described current rectifying and wave filtering circuit comprises EMI filter circuit and the rectifier bridge BD1 of safe electric capacity CX1, common mode inductance LF1 and resistance R1, R2 composition, described DC-DC conversion circuit comprises the filter circuit that IC1, diode D8 and electrochemical capacitor EC6, common mode inductance LF2 and electrochemical capacitor EC7 form, and described direct current regulation circuit comprises IC1, resistance R5, R6, R7 and transformer; After described civil power L termination fuse F1, carry out rectification through EMI filter circuit to rectifier bridge BD1 and transfer interchange input to direct current output, then obtain the output of High Power Factor direct current through the paddy circuit filtering of filling out that electrochemical capacitor EC1, EC2 and diode D1, D2, D3 are formed; IC1 control transformer armature winding TR1 produces the AC energy of conversion and is coupled on secondary winding TR3, secondary winding TR3 is rectified into direct current through diode D8 again, after the filter circuit that electrochemical capacitor EC6, common mode inductance LF2, electrochemical capacitor EC7 form, obtain galvanic current pressure, diode D4, resistance R3, resistance R4 and electric capacity C2 form RCD clamper absorbing circuit; Resistance R5, R6, R7 one end connects the FB pin of IC1, winding TR2 assisted by another termination transformer of resistance R5, be 2.0V reference voltage relation according to the turn ratio of auxiliary winding TR2 and secondary winding TR3 and the inner FB pin of IC1, provide the negative-feedback signal of secondary winding TR3 and armature winding TR1, make secondary winding TR3 export a stable voltage to battery module circuit; The CS heel that resistance R9 connects IC1 carries out overload protection according to the magnitude of voltage on resistance R9.
3. multifunctional emergency light supply unit according to claim 1, it is characterized in that, described control circuit comprises resistance R23, one end of this resistance R23 connects voltage stabilizing didoe U1, the other end connects the VCC pin of IC2, this resistance R23 connects the in-phase end of comparator IC2 by resistance R26, rectifier bridge BD1 positive pole is by divider resistance R12, R13, R14 ground connection, and the divider resistance R14 other end receives the end of oppisite phase of comparator IC2 by resistance R24; VCC pin connects optocoupler PH1, and the collector electrode of contact resistance R18 and triode Q1, triode Q1 is connected to resistance R14 by resistance R20.
4. multifunctional emergency light supply unit according to claim 3, it is characterized in that, described testing circuit comprises L, N two ends and is connected to electric capacity C7, resistance R22 and rectifier bridge BR2, and obtain the direct voltage of a small area analysis, optocoupler PH2 is received by electrochemical capacitor EC5 filtering and resistance R21 current limliting, the collector electrode of optocoupler PH2 connecting triode Q2, triode Q2 connects the DIM pin of light modulation IC3.
5. multifunctional emergency light supply unit according to claim 4, is characterized in that, described direct current regulation circuit comprises resistance R32, R33, R34 and voltage stabilizing didoe U2, battery module circuit output end voltage V
+by obtaining burning voltage V after resistance R32, R33, R34 and voltage stabilizing didoe U2
1, this burning voltage V
1=(2.5*R33)/R34.
6. multifunctional emergency light supply unit according to claim 5, is characterized in that, described voltage increase and current constant circuit comprises inductance L 2, light modulation IC3, diode D12 and electrochemical capacitor EC10, battery module circuit output end voltage V
+voltage V is obtained via inductance L 2, light modulation IC3 and diode D12 again through electrochemical capacitor EC9 filtering
eC10; Be connected to resistance R42 between the output of light modulation IC3 and LED, resistance R42 two ends connect ISP pin and the ISN pin of light modulation IC3 respectively, voltage V
eC10=V
r42+ V
lED, LED electric current I
lED=(V
iSP-V
iSN)/R
42; The DIM pin of described light modulation IC3 is connected to resistance R39, R40, detects voltage V
dIM=(V
1* R40)/(R39+R40); Battery module circuit output end V
+the DIM pin of light modulation IC3 is received by resistance R36, R37, R38, optocoupler PH1 and diode D11.
7. the control method of multifunctional emergency light supply unit according to claim 6, is characterized in that, comprises three operating states of standby mode of operation, normal operating conditions and firmware-error state; The operating state of emergency light is by controlling the detection voltage V of the DIM pin of light modulation IC3
dIMcontrol accordingly; When L, N hold input voltage be less than reference voltage, voltage V
r14during <2.5V, the VCC end of comparator IC2 exports high level, and optocoupler PH1 ends; When L, N hold input voltage reach reference voltage, now voltage V
r14the VCC end upset output low level of >2.5V, comparator IC2, optocoupler PH1 conducting; When L, N terminal voltage is greater than reference voltage, now voltage V
r14the VCC of >2.5V, comparator IC2 holds output low level, when making optocoupler PH1 conducting, and triode Q1 conducting; The conducting of optocoupler PH1 and cut-ff voltage form anti-erroneous judgement return difference; Described reference voltage V
ac=176V.
8. the control method of multifunctional emergency light supply unit according to claim 7, is characterized in that, when described LED is small area analysis operating state, described standby mode of operation is divided into two kinds of situations,
1, L, N hold input voltage be less than 176V and L end be in ON state, this state belongs to electrical network low voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 conducting, triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMdrop between 1.2V-2.4V, realize the small area analysis operating state of LED;
2, L, N input voltage be less than 176V and L end be in OFF state, this state belongs to electrical network no-voltage situation, carries out dividing potential drop by arranging resistance R12, R13, R14 resistance; When input voltage equals 176V, V
r14=2.5V; When input voltage is less than 176V, voltage V
r14<2.5V, optocoupler PH1 not conducting, optocoupler PH2 ends, and triode Q2 ends, and makes detection voltage V by the resistance ratio of regulating resistance R39, R40
dIMvoltage drops between 1.2V-2.4V, realizes the small area analysis operating state of LED.
9. the control method of multifunctional emergency light supply unit according to claim 7, is characterized in that, when L, N hold input voltage higher than 176V and L end be in ON state, this state belongs to normal operating conditions;
When input voltage equals 176V, voltage V
r14=2.5V; When L, N hold input voltage to be greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 conducting, the base voltage Vb=0V of triode Q2, triode Q2 end; V can be made by regulating resistance R38 resistance
dIMmuch larger than 2.4V, the V of light modulation IC3
iSPwith V
iSNbetween clamp voltage be 200mv, the output current I of LED
led=200mV/R42, thus the big current operating state realizing LED.
10. the control method of multifunctional emergency light supply unit according to claim 7, is characterized in that, when L, N hold input voltage higher than 176V and L end be in OFF state, this state belongs to firmware-error state;
When input voltage equals 176V, voltage V
r14=2.5V; When input voltage is greater than 176V, voltage V
r14>2.5V, optocoupler PH1 conducting, optocoupler PH2 ends, ground level and the transmitting interstage voltage V of triode Q2
be>0.7V, triode Q2 conducting, V
dIM=0V, light modulation IC3 does not work, and LED does not work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518112.0A CN105072766B (en) | 2015-08-21 | 2015-08-21 | Multifunctional emergency light supply unit and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518112.0A CN105072766B (en) | 2015-08-21 | 2015-08-21 | Multifunctional emergency light supply unit and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105072766A true CN105072766A (en) | 2015-11-18 |
| CN105072766B CN105072766B (en) | 2018-06-12 |
Family
ID=54502003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510518112.0A Active CN105072766B (en) | 2015-08-21 | 2015-08-21 | Multifunctional emergency light supply unit and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105072766B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411158A (en) * | 2016-11-16 | 2017-02-15 | 南宁学院 | Novel piezoelectric ceramic driver power supply |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801131A (en) * | 2010-02-08 | 2010-08-11 | 海洋王照明科技股份有限公司 | Emergency lamp control circuit and emergency illumination lamp fitting |
| CN202127529U (en) * | 2011-05-24 | 2012-01-25 | 郭小冬 | Emergency lighting integrated light-emitting diode (LED) lamp |
| CN203467001U (en) * | 2013-05-29 | 2014-03-05 | 洪冲祥 | Emergency induction LED lamp |
| CN203537053U (en) * | 2013-10-19 | 2014-04-09 | 梁帅 | LED illuminating lamp emergency power supply |
| CN204272431U (en) * | 2014-08-01 | 2015-04-15 | 格利尔数码科技股份有限公司 | LED emergency lighting circuit for lamp |
| CN204859706U (en) * | 2015-08-21 | 2015-12-09 | 厦门英诺尔充源电子有限公司 | Multi -functional emergency light power supply unit |
-
2015
- 2015-08-21 CN CN201510518112.0A patent/CN105072766B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101801131A (en) * | 2010-02-08 | 2010-08-11 | 海洋王照明科技股份有限公司 | Emergency lamp control circuit and emergency illumination lamp fitting |
| CN202127529U (en) * | 2011-05-24 | 2012-01-25 | 郭小冬 | Emergency lighting integrated light-emitting diode (LED) lamp |
| CN203467001U (en) * | 2013-05-29 | 2014-03-05 | 洪冲祥 | Emergency induction LED lamp |
| CN203537053U (en) * | 2013-10-19 | 2014-04-09 | 梁帅 | LED illuminating lamp emergency power supply |
| CN204272431U (en) * | 2014-08-01 | 2015-04-15 | 格利尔数码科技股份有限公司 | LED emergency lighting circuit for lamp |
| CN204859706U (en) * | 2015-08-21 | 2015-12-09 | 厦门英诺尔充源电子有限公司 | Multi -functional emergency light power supply unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411158A (en) * | 2016-11-16 | 2017-02-15 | 南宁学院 | Novel piezoelectric ceramic driver power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105072766B (en) | 2018-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103248108B (en) | Switch and the LED driver of reusable DC-DC module with metal-oxide-semiconductor | |
| CN102917503B (en) | LED driver system with energy storage function | |
| CN203225573U (en) | Power-storing LED driver employing switching MOS tube and DC-DC module capable of multiplexing | |
| CN204859706U (en) | Multi -functional emergency light power supply unit | |
| CN204190621U (en) | A kind of switching power circuit | |
| CN101364741B (en) | Mobile phone charger | |
| CN111509825A (en) | 45W broadband voltage self-adaptation PPS super portable power source structure that fills soon | |
| CN106655431B (en) | Automatic current regulation charger circuit | |
| CN202873150U (en) | Energy storage LED driver system | |
| CN106440939B (en) | Solar energy inner red spot sighting device | |
| CN205178182U (en) | WIFI intelligent movement socket | |
| CN202310206U (en) | Control circuit of ultra-low-power single wire power supply touch switch | |
| CN210201485U (en) | Single-live-wire power taking circuit, control circuit and power supply system | |
| CN105072766A (en) | Multifunctional emergency lamp power supply device and control method thereof | |
| CN201750171U (en) | Novel traveling emergency charger | |
| CN208923891U (en) | A kind of charger being applicable in multiple battery packet | |
| CN202979407U (en) | LED uninterrupted lighting device | |
| CN214899196U (en) | Power socket circuit structure supporting realization of double-port quick charging and protocol switching | |
| CN201656795U (en) | Resistance-capacitance pressure relief device | |
| CN102739046B (en) | Auxiliary power supply circuit without electrolytic capacitor | |
| CN209119885U (en) | Solar energy movable power supply | |
| CN209375184U (en) | Earphone charging box | |
| CN203014706U (en) | Power supply device with high efficiency alternating current and direct current same port input for cameras | |
| CN208210374U (en) | A kind of infrared induction control circuit powered using main winding tap in non-isolated circuit | |
| CN202948398U (en) | Embedded type intelligent self-protection power supply module of computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 361009, No. 4, No. 12, Xiang Yue Road, Xiamen torch hi tech Zone (Xiangan), Fujian Applicant after: XIAMEN INNOV CHARGE SOURCE ELECTRONICS CO., LTD. Address before: 361009, torch hi tech Zone (Xiangan), Fujian Province, No. 4, No. 12, Xiang Yue Road, Xiamen Applicant before: XIAMEN INNOV CHARGE SOURCE ELECTRONICS CO., LTD. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |