CN104349536A - Blackout lighting and general lighting integrated lamp - Google Patents
Blackout lighting and general lighting integrated lamp Download PDFInfo
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- CN104349536A CN104349536A CN201310338065.2A CN201310338065A CN104349536A CN 104349536 A CN104349536 A CN 104349536A CN 201310338065 A CN201310338065 A CN 201310338065A CN 104349536 A CN104349536 A CN 104349536A
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Abstract
The invention relates to a blackout lighting and general lighting integrated lamp. The blackout lighting and general lighting integrated lamp is coupled to an alternating-current (AC) power supply, wherein the AC power supply is provided with a first AC terminal and a second AC terminal; the blackout lighting and general lighting integrated lamp is controlled by a lamp switch; the lamp switch comprises a first terminal and a second terminal, wherein an indicating lamp circuit is coupled between the first terminal of the lamp switch and the second terminal of the lamp switch; the blackout lighting and general lighting integrated lamp comprises an AC detection circuit, wherein the AC detection circuit is coupled between the second terminal of the lamp switch and the second AC terminal. When the lamp switch is turned off, the AC detection circuit judges whether the moment is in a blackout state or a normal operating state through the status of voltage/current of the indicating lamp circuit between the second terminal of the lamp switch and the second AC terminal; thus, the blackout lighting and general lighting integrated lamp can be mounted without rewiring and dismounting old decorations.
Description
Technical field
The invention relates to the technology of the integrated general lighting of a kind of power-off lighting, further, the invention relates to a kind of power-off lighting and general lighting integrated lamp.
Background technology
Automatic emergency light has become the important outfit of family and public place.Unfortunately, in old building or old-fashioned house, not corresponding distribution.Even newly-built house, do not having the place of corresponding distribution, to device emergency lighting, how the problem faced by primary will solve wiring problems exactly.Distribution newly-increased so even can affect the attractive in appearance of indoor sometimes.Meanwhile, in the occasion of major part, emergency lamp normally configures in addition.Fig. 1 illustrates the wiring layout of power-off lighting into background technology and room lighting integrated lamp.Please refer to Fig. 1, this family's wiring diagram comprises a live wire L, a neutral line N, a lamp switch SW and a light fixture 101.As can be seen from above-mentioned Fig. 1, to have at a light fixture 101 simultaneously Emergency Light there is again the function of general lighting time, then distribution needs to connect the mains switch SW on constant power supply (AC power supplies) L and wall simultaneously.Such wiring mode needs additionally drawing a line 102 in addition from power supply, causes distribution too complicated.
Therefore, how utilizing existing lamp body or distribution to install emergency lamp, significantly need not revise again the distribution of existing family, is the direction that a lot of this area person makes great efforts.In many inventions, for the problems referred to above, all put forward different solutions, wherein, the method that maximum people proposes is the mode utilizing wireless remote control.The method mainly utilizes the wireless launcher being inserted in the general socket of family, and whether this wireless launcher interrupts in order to the electricity of test socket.When the electric power is interrupted, wireless launcher launches a signal to the lamp body of an Emergency Light.Said method can reach the effect reducing distribution.
But aforesaid way needs additionally to buy wireless launcher, and light fixture itself must have the circuit of wireless receiving.This kind of design can cause the selling at exorbitant prices of light fixture, and in addition, common people also more not easily accept so indirectly assembling mode.
Summary of the invention
An object of the present invention is to provide a kind of power-off lighting and general lighting integrated lamp, with this, uses low cost mode, need not change distribution and decoration, just can whether detect power failure.
In view of this, the invention provides a kind of power-off lighting and general lighting integrated lamp, this power-off lighting and general lighting integrated lamp are coupled in an AC power, and wherein, this AC power has one first and exchanges end and one second interchange end.This power-off lighting and general lighting integrated lamp are controlled by a lamp switch.Above-mentioned lamp switch comprises a first end and one second end.The first end of lamp switch couples the first interchange end, between the first end of lamp switch and the second end of lamp switch, couples an indicator light circuit.When lamp switch is closed by user, the indicator light in indicator light circuit is lighted to represent that switch cuts out.
Above-mentioned power-off lighting and general lighting integrated lamp comprise an alternating current testing circuit, a battery and a light fixture integrated circuit.Between the first end that alternating current testing circuit is coupled in lamp switch exchanges with second and holds.When lamp switch is closed, alternating current testing circuit flows to the second end of lamp switch circuit by indicator light circuit exchanges the electricity Ya ∕ current status between holding with second, judges to be now a power down mode or a normal operating conditions.Cell arrangement in power-off lighting and general lighting integrated lamp, in order to supply electrical power to power-off lighting and general lighting integrated lamp after a loss of power.Light fixture integrated circuit comprises first input end and one second input, and wherein, the first input end of light fixture integrated circuit couples the second end of lamp switch, and the second input of light fixture integrated circuit couples the second interchange end.When lamp switch is opened, light fixture integrated circuit utilizes the AC power received to light light fixture in light fixture integrated circuit.When lamp switch is closed, and when alternating current testing circuit is judged to be normal operating conditions, light fixture integrated circuit extinguishes the light fixture in light fixture integrated circuit.When lamp switch is closed, and when alternating current testing circuit is judged to be power down mode, light fixture integrated circuit utilizes the electric power of the battery received to light light fixture in light fixture integrated circuit.
According to the power-off lighting described in present pre-ferred embodiments and general lighting integrated lamp, the indicator light circuit of above-mentioned lamp switch comprises an indicator light and one first current-limiting resistance.The first end of the first current-limiting resistance couples the first end of lamp switch.The first end of indicator light couples the second end of the first current-limiting resistance, and the second end of indicator light couples the second end of lamp switch.Again, in a preferred embodiment, alternating current testing circuit comprises a bridge rectifier, one second current-limiting resistance, a Detection capacitance, a threshold switching voltage and a control circuit.Bridge rectifier comprises a first input end, the second input, one first rectifier terminal and one second rectifier terminal, wherein, the first input end of bridge rectifier couples the second end of lamp switch, second input of bridge rectifier couples the second interchange end, and the second rectifier terminal of bridge rectifier couples one first and connects voltage altogether.The first end of the second current-limiting resistance couples the first rectifier terminal of bridge rectifier.The first end of Detection capacitance couples the second end of the second current-limiting resistance, and the second end of Detection capacitance couples the second rectifier terminal of bridge rectifier.The first end of threshold switching voltage couples the second end of current-limiting resistance, wherein, when the voltage at the two ends of threshold switching voltage is greater than a threshold voltage, and threshold switching voltage conducting.Control circuit, in order to the voltage status according to threshold switching voltage, judges that current state is as power down mode or this normal operating conditions.
According to the power-off lighting described in present pre-ferred embodiments and general lighting integrated lamp, above-mentioned control circuit comprises an optical coupler (Photo Coupler), a transformer, an electronic switch, a pulse width modulation circuit, a rectifier diode (diode AC switch), a commutation capacitor, draw high resistance and a microprocessor.Optical coupler comprises first input end, the second input, one first output and one second output, wherein, the first input end of optical coupler couples the second end of threshold switching voltage, second input of optical coupler couples first and connects voltage altogether, and the second output of optical coupler couples one second and connects voltage altogether.Transformer comprises first side winding and secondary side winding, wherein, first side winding comprises a first end and one second end, and secondary side winding comprises a first end and one second end, the first end of first side winding couples the first rectifier terminal, and the second end of secondary side winding couples second and connects voltage altogether.Electronic switch comprises a first end, one second end and a control end, and wherein, the first end of electronic switch couples the second end of the first side winding of transformer, and the second end of electronic switch couples first and connects voltage altogether.Pulse width modulation circuit couples the control end of electronic switch, controls the ON-OFF of the first end of electronic switch and the second end of electronic switch, to control the voltage of secondary side winding with pulse wave width modulation.Rectifier diode comprises an anode and a negative electrode, and wherein, the anode of rectifier diode couples the first end of secondary side winding.The first end of commutation capacitor couples the negative electrode of rectifier diode, and the second end of commutation capacitor couples second and connects voltage altogether.Draw high-resistance first end to couple a logic high voltage, draw high-resistance second end to couple the first output of this optical coupler.Microprocessor comprises a power input and a test side, wherein, the power input of microprocessor couples the negative electrode of rectifier diode, the test side of microprocessor couples the first output of optical coupler, wherein, when the voltage of test side is in a Preset Time, continue to maintain logic high voltage, microprocessor judges to enter power down mode.
The present invention provides a kind of power-off lighting and general lighting integrated lamp in addition, is coupled in an AC power.AC power has one first and exchanges end and one second interchange end.Wherein, power-off lighting and general lighting integrated lamp controlled by a lamp switch.Lamp switch comprises a first end, one first jack, one second end and one second jack.The first end of lamp switch couples the first interchange end by the first jack.Power-off lighting and general lighting integrated lamp comprise a resistance plug-in unit, an alternating current testing circuit, a battery and a light fixture integrated circuit.Wherein, resistance plug-in unit comprises one first pin, one second pin, one first jack and one second jack.First pin of resistance plug-in unit couples the first end of lamp switch by the first jack of lamp switch, the second pin of resistance plug-in unit couples the second end of lamp switch by the second jack of lamp switch, and the first jack of resistance plug-in unit couples the first interchange end.Between the second jack that alternating current testing circuit is coupled in resistance plug-in unit exchanges with second and holds.When lamp switch is closed, alternating current testing circuit is by resistance plug-in unit, and the second end detecting lamp switch exchanges the electricity Ya ∕ current status between holding with second, judge that current state is a power down mode or a normal operating conditions.Cell arrangement in power-off lighting and general lighting integrated lamp, in order to supply electrical power to power-off lighting and general lighting integrated lamp after a loss of power.Light fixture integrated circuit comprises first input end and the second input.Second jack of the first input end coupling resistance plug-in unit of light fixture integrated circuit, the second input of light fixture integrated circuit couples the second interchange end.When lamp switch is opened, light fixture integrated circuit utilizes the AC power received to light light fixture in light fixture integrated circuit.Close at lamp switch, and when alternating current testing circuit is judged to be normal operating conditions, light fixture integrated circuit extinguishes the light fixture in light fixture integrated circuit.When lamp switch is closed, and when alternating current testing circuit is judged to be power down mode, light fixture integrated circuit utilizes the electric power of the battery received to light light fixture in light fixture integrated circuit.
Advantageous Effects of the present invention is: utilize single bypass parallel impedance of cutting pass, and detect the voltage/current state of above-mentioned parallel impedance, to determine whether to have a power failure.Execution mode directly can be selected indicator light switch (neon switch) or utilize above-mentioned resistance plug-in unit to insert and singly cut pass.This kind of power sense circuit of the embodiment of the present invention, owing to need not carry out the work of rewiring, in other words, does not need again to remove old decoration, just can install power-off lighting and general lighting integrated lamp.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 illustrates the wiring layout of power-off lighting into background technology and general lighting integrated lamp.
Fig. 2 illustrates the circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 3 illustrates the circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 4 A to Fig. 4 C illustrates the operation waveform diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 201 of general lighting integrated lamp.
Fig. 5 A illustrates the thin portion circuit block diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 5 B illustrates the thin portion circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 6 A to Fig. 6 B illustrates the operation waveform diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 201 of general lighting integrated lamp.
Fig. 7 illustrates the schematic diagram into the power-off lighting of a preferred embodiment of the present invention and the plug-in plug-in unit of switch of general lighting integrated lamp.
Fig. 8 A illustrates the circuit block diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 8 B illustrates the thin portion circuit block diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Fig. 9 illustrates the thin portion circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.
Figure 10 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 801 of general lighting integrated lamp.
Figure 11 illustrates as the power-off lighting of a preferred embodiment of the present invention and the battery charger of general lighting integrated lamp or the circuit diagram of lamp driving circuit.
Figure 12 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the discharge circuit of general lighting integrated lamp.
Reference numeral
L: live wire
N: the neutral line
SW: lamp switch
101: light fixture
102: extra distribution
201,801: alternating current testing circuit
202,802: battery
203,803: light fixture integrated circuit
204: lamp switch
205: indicator light circuit
206: indicator light
207,804: discharge circuit
301,901: bridge rectifier
302,902: current-limiting resistance
303,903: Detection capacitance
304,904: bidirectional trigger diode
305,905: control circuit
401: the voltage waveform on DC bus (DC Bus)
402: the voltage VC waveform of Detection capacitance 303
403: the current waveform of bidirectional trigger diode 304
501: circuit of power factor correction
502,805: battery charger
503,806: lamp driving circuit
504,807: light fixture
505: flyback DC-DC converter
506,1002: microprocessor
503,1003: optical coupler
R50, R100: starting resistance
U50, U100: pulse width modulation circuit
S50, S100: electronic switch
D50, D51, D100, D101: rectifier diode
C50, C51, C100, C101: commutation capacitor
R51, R101: draw high resistance
T50, T100: transformer
601: the voltage of node C
602: the voltage of node D
701: singly cut pass
702: resistance plug-in unit
703: power-off lighting and general lighting integrated lamp
Embodiment
When not needing to revise original distribution, the present invention proposes a power-off lighting and general lighting integrated lamp, and light fixture only directly need be installed on the output of switch by user, just can have general lighting and urgent illuminating lamp simultaneously.
First embodiment
Fig. 2 illustrates the circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.Please refer to Fig. 2, this power-off lighting and general lighting integrated lamp comprise alternating current testing circuit 201, battery 202, light fixture integrated circuit 203 and a discharge circuit 207.In order to allow user can more understand spirit of the present invention, in this figure, additionally depict a lamp switch 204, wherein, this lamp switch 204 has indicator light circuit 205, namely so-called indicator light switch (neon switch).This kind of indicator light switch 204 is mainly in order to when night lamp is closed, and user can conveniently find designed by the position of lamp switch 204.When indicator light switch 204 is closed (cut-off), have faint electric current and flow to above-mentioned indicator light circuit 205 from live wire L, therefore, indicator light 206 is lit.When indicator light switch 204 is unlocked (conducting), A node and the short circuit of B node, therefore, indicator light circuit 205 does not almost have electric current to flow through, and therefore, indicator light 206 extinguishes.
Alternating current testing circuit 201 is coupled between the second end B of lamp switch 204 and neutral line N.When lamp switch 204 is closed (cut-off), alternating current testing circuit 201 flows to the electricity Ya ∕ current status between the circuit of the second end B of lamp switch 204 and neutral line N by indicator light circuit 205, judge to be now a power down mode or a normal operating conditions.In order to allow distribution reduce to minimum, in this instance, employ indicator light switch 204.The indicator light circuit 205 of indicator light switch 204, when switch 204 ends, if when alternating current still exists, still has a little electric current to flow through indicator light circuit 205.Therefore, no matter whether switch 204 is opened, and alternating current testing circuit 201 can detect whether have a power failure.
Battery 202 is configured in power-off lighting and general lighting integrated lamp, in order to after a loss of power, supplies electrical power to discharge circuit 207, and discharge circuit 207 is carrying out electric power conversion, makes light fixture integrated circuit 203 can not interrupt supply of electric power when AC power power-off or shakiness.The first input end of light fixture integrated circuit 203 couples the second end B of lamp switch, and the second input of light fixture integrated circuit 203 couples neutral line N.When lamp switch 204 is opened, light fixture integrated circuit 203 utilizes the AC power received to light light fixture in light fixture integrated circuit 203.When lamp switch 204 opens (conducting), alternating current testing circuit 201 nature from the curtage live wire L to neutral line N, can judge whether alternating current exists.
When lamp switch 204 closes (cut-off), alternating current testing circuit 201 can judge whether by the electricity Ya ∕ electric current detected by indicator light circuit 205 to have a power failure.When lamp switch 204 closes (cut-off), and when alternating current testing circuit 201 is judged to be normal operating conditions, light fixture integrated circuit 203 extinguishes the light fixture in light fixture integrated circuit 203.When lamp switch 204 is closed, and when alternating current testing circuit 201 is judged to be power down mode, the electric power that light fixture integrated circuit 203 utilizes battery 202 to receive lights the light fixture in light fixture integrated circuit 203, to carry out Emergency Light use.
Fig. 3 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 201 of general lighting integrated lamp.Please refer to Fig. 3, the circuit of this alternating current testing circuit 201 comprises bridge rectifier 301, current-limiting resistance 302, Detection capacitance 303, bidirectional trigger diode (diode AC switch, DIAC) 304 and a control circuit 305.Wherein, the circuit of alternating current testing circuit 201 is coupled to above-mentioned lamp switch 204.In this embodiment, be that not carry out the circuit of electrical isolation for example.Due to lamp switch 204 open (conducting) time, whether AC power AC, by the lamp switch 204 of conducting, inputs to alternating current testing circuit 201, exists to directly detect alternating current.Therefore, in this embodiment, first close (cut-off) to illustrate with lamp switch 204.
Fig. 4 A to Fig. 4 C illustrates the operation waveform diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 201 of general lighting integrated lamp.Please also refer to Fig. 3 and Fig. 4 A to Fig. 4 C, waveform 401 represents the voltage waveform on DC bus (DC Bus), and waveform 402 represents the voltage VC waveform of Detection capacitance 303.When lamp switch 204 closes (cut-off), alternating voltage VAC is input to bridge rectifier 301 by the indicator light circuit 205 of lamp switch 204.At time T1, the small electric flowing through bridge rectifier 301 fails to be convened for lack of a quorum and to charge to current-limiting resistance 302 and Detection capacitance 303.When the voltage VC of Detection capacitance 303 be charged to be greater than 40V time (time T2), bidirectional trigger diode 304 is triggered and conducting, and Detection capacitance 303 can by sudden discharge, and afterwards, bidirectional trigger diode 304 ends again.Next, this alternating current testing circuit 201 is just as above-mentioned repetitive operation.Control circuit 305 can detect the voltage of above-mentioned Detection capacitance 303 or the current/voltage of bidirectional trigger diode 304.
In this instance, control circuit 305 detects the electric current of bidirectional trigger diode 304, and in this embodiment, when alternating current exists, as shown by 403, each section of preset time T X, has a current impulse to the current waveform of bidirectional trigger diode 304.As long as control circuit 305 is (such as 5 times of TX) within a period of time, do not receive current impulse, just can judge now to have a power failure, control circuit 305 just notifies that power-off lighting and general lighting integrated lamp enter power down mode, lights the automatic emergency light (or whole illuminating lamps) of this power-off lighting and general lighting integrated lamp with the electric power of battery 202.When alternating current is unstable, usually power-off can reply electricity again in a flash.If when this situation occurs, the AC detection circuit of background technology can allow emergent lighting lamp instant igniting usually, extinguishes instantaneously afterwards.So, when this kind of situation occurs, user usually can misunderstand, and think that clever different phenomenon occurs, user can produce bad perception to this kind of emergency lamp.Because the control circuit 305 of the present embodiment is determined not receive pulse after detection a period of time, just carry out lighting light fixture, also just say, the present embodiment will confirm the complete power-off of alternating current, just lights Emergency Light.So, the problem above-mentioned automatic emergency light just can being avoided to glimmer.
Relevant technical staff in the field it should be known that above-mentioned bidirectional trigger diode 304 is only a kind of exemplary citing, can replace with such as Zener diode.In other words, as long as both end voltage arrive threshold voltage just can the threshold switching voltage of conducting, just can replace above-mentioned bidirectional trigger diode 304, therefore the present invention is not limited with above-mentioned bidirectional trigger diode 304.
Fig. 5 A illustrates the thin portion calcspar of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.Please refer to Fig. 5 A, light fixture integrated circuit 203 is originally subdivided into circuit of power factor correction 501, battery charger 502, lamp driving circuit 503 and light fixture 504 by this circuit more.Circuit of power factor correction 501 is in order to carry out power factor correction to received alternating current, and power supply is to above-mentioned battery charger 502 and lamp driving circuit 503.Battery charger 502 is in order to charge to battery.Lamp driving circuit 503 is in order to drive light fixture 504.
Fig. 5 B illustrates the thin portion circuit diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.Please refer to Fig. 5 B, this alternating current testing circuit 201 comprises above-mentioned lamp switch 204, bridge rectifier 301, current-limiting resistance 302, Detection capacitance 303, bidirectional trigger diode (diode AC switch, DIAC) 304, flyback DC-DC converter 505, microprocessor 506, draws high resistance R51, an optical coupler (Photo coupler) 503, battery charger 502, lamp driving circuit 504, LED strip 504 and discharge circuit 207.Flyback DC-DC converter 505 comprises a starting resistance R50, a pulse width modulation circuit U50, an electronic switch S50, rectifier diode D50, D51, commutation capacitor C50, C51 and transformer T50.At this, alternating current testing circuit 201 mainly based on microprocessor 506, because microprocessor 506 belongs to vulnerabilities scan, and alternating current belongs to forceful electric power, in order to make light current and strong power part be isolated preferably, ensureing safe and reliable, therefore needing electrical isolation.
In this embodiment, flyback DC-DC converter 505 is except being used for electrical isolation, and main is in order to rate of doing work factor correcting (Power Factor Correction, PFC), make it consistent as far as possible with DC voltage wave mode, allow power factor (PF) level off to 1.In addition, flyback DC-DC converter 505 also can produce two groups of voltages, and charge the battery circuit 502 and lamp driving circuit 503 respectively.Battery charger 502 is DC-DC converter, in order to produce the direct current charged to battery 202.In addition, because this embodiment is using LED strip as light fixture 504, lamp driving circuit 503 is also DC-DC converter, to supply direct voltage, the electric current needed for LED strip 504.
Due to lamp switch 204 open (conducting) time, alternating current testing circuit 201 nature directly from the curtage live wire L to neutral line N, can judge whether alternating current exists.Therefore, only the situation that lamp switch 204 closes (cut-off) is described below.When supposing that lamp switch 204 is closed, battery 202 and discharge circuit 207 can replace alternating current originally, power, and maintain the running of alternating current testing circuit to above-mentioned flyback DC-DC converter 505.Due to lamp switch 204 close time, LED strip 504 is OFF state, and therefore, battery 202 only needs to supply the running that minority electric power just can maintain testing mechanism.
The indicator light circuit of lamp switch 204 can provide less electric current, and starting resistance R50 can flow through small electric current makes pulse width modulation circuit U50 start.After pulse width modulation circuit U50 starts, electronic switch S50 starts action, and therefore, the auxiliary winding of transformer T50 starts to power VCC to pulse width modulation circuit U50, and the secondary side winding of transformer T50 also starts power supply to microprocessor 506.The present embodiment adopts bidirectional trigger diode 304, and because the trigger voltage of bidirectional trigger diode is approximately 32V, therefore, the resistance R52 of the indicator light circuit in the lamp switch 204 of the present embodiment and the dividing potential drop design of starting resistance R50 need be greater than 32V.
When alternating current exists, alternating current is charged by bridge rectifier 301, current-limiting resistance 302 pairs of Detection capacitances 303.When the voltage VC of Detection capacitance 303 be charged to reach 32V time, bidirectional trigger diode 304 is triggered and conducting, now, electric charge stored by Detection capacitance 303 is discharged by optical coupler 503 by node C, the node D of the opposite side of optical coupler 503 due to the conducting of optical coupler 503, and can pulled down to logic low-voltage.
Fig. 6 A to Fig. 6 B illustrates the operation waveform diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 201 of general lighting integrated lamp.Please also refer to Fig. 5 B and Fig. 6 A to Fig. 6 B, waveform 601 represents the voltage of node C, and waveform 602 represents the voltage of node D.The detection pin position couple nodes D of microprocessor 506, whether be used for decision node D continues the pulse of output logic low-voltage.When occurring if having a power failure, do not have electric current to flow through bidirectional trigger diode 304, therefore, node D can maintain logic high voltage VH, if after a period of time, microprocessor 506 still detects that node D is logic High voltage state, then judge now as power down mode.
The alternating current testing circuit 201 of above-mentioned Fig. 5 B, when having a power failure, adopts powered battery.Therefore, even if AC power is interrupted suddenly, the testing mechanism of alternating current also can not stop immediately.In addition, even if alternating current testing circuit 201 is when AC power instability, still can operate, also can not immediacy ground power-off telegram in reply.
Moreover above-mentioned Fig. 5 B embodiment uses flyback DC-DC converter as an example.But relevant technical staff in the field it should be known that above-mentioned flyback DC-DC converter also can use the DC-DC converter of other kinds to implement, therefore the present invention is not limited thereto.In addition, above-described embodiment uses optical coupler 503 to detect electric current, but, this area has common thing person and should know, in order to reach isolation and detect the object of electric current simultaneously, optical coupler 503 in Fig. 5 B also can use other forms of relay to implement, therefore the present invention is not limited thereto.
Above-mentioned several preferred embodiment is for example with indicator light switch, so, when user is also likely because of other considerations such as attractive in appearance or decoration consistency, is unwilling single pass of cutting to be replaced by indicator light switch.At this, applicant proposes another kind of preferred embodiment, is not change single to cut that to close be principle, and when single cut close close (cut-off), detection alternating current.
Fig. 7 illustrates the schematic diagram into the power-off lighting of a preferred embodiment of the present invention and the plug-in plug-in unit of switch of general lighting integrated lamp.Please refer to Fig. 7,701 represent that the list be arranged on metope of background technology cuts the rearview closed; The resistance plug-in unit of the 702 expression embodiment of the present invention; The power-off lighting of the 703 expression embodiment of the present invention and general lighting integrated lamp.As seen from Figure 7, single the first jack (namely light fixture jack) cutting pass 701 is connected to the second pin T2 of resistance plug-in unit 702, single the second jack (namely firewire jack) cutting pass 701 is connected to the first pin T1 of resistance plug-in unit 702, second jack of resistance plug-in unit 702 is connected by electrical wiring to power-off lighting and the general lighting integrated lamp 703 of the embodiment of the present invention, and the first jack of resistance plug-in unit 702 is connected by electrical wiring to live wire L.As can be seen from above-mentioned Fig. 7, the present embodiment can be used in the list generally without indicator light circuit and cut pass.In use, only need after traditional switch, plug a resistance plug-in unit, just power-off lighting of the present invention and general lighting integrated lamp directly can be installed.
Fig. 8 A illustrates the circuit block diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.Please also refer to Fig. 7, Fig. 8 A and Fig. 2, this circuit comprises and single cuts pass 701, the resistance plug-in unit 702 of bypass, alternating current testing circuit 801, battery 802, light fixture integrated circuit 803 and discharge circuit 804.The difference of the circuit of this circuit and Fig. 2 is, the equivalent electric circuit of Fig. 2 is that the indicator light and the current-limiting resistance that add bypass are closed in single incision; This example only has single resistance plug-in unit 702 cutting pass 701 and bypass.Because the interchange testing mechanism of the circuit of the 8th figure is identical with the interchange testing mechanism of the circuit of Fig. 2, therefore do not repeat them here.As can be seen from above-mentioned Fig. 7 and the 8th figure, the present embodiment can be used in the list generally without indicator light circuit and cut pass.In use, only need after traditional switch, plug a resistance plug-in unit, just power-off lighting of the present invention and general lighting integrated lamp directly can be installed.
Fig. 8 B illustrates the circuit block diagram of power-off lighting into a preferred embodiment of the present invention and general lighting integrated lamp.Please also refer to Fig. 5 A, Fig. 8 A and Fig. 8 B, same reason, light fixture integrated circuit 803 is originally subdivided into circuit of power factor correction 804, battery charger 805, lamp driving circuit 806 and light fixture 807 by this circuit more.Circuit of power factor correction 804 is in order to carry out power factor correction to received alternating current, and power supply is to above-mentioned battery charger 805 and lamp driving circuit 806.Battery charger 805 is in order to charge to battery.Lamp driving circuit 806 is in order to drive light fixture 807.
Fig. 9 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 801 of general lighting integrated lamp.Please refer to Fig. 9, the circuit of this alternating current testing circuit 801 comprises above-mentioned resistance plug-in unit 701, above-mentioned lamp switch 702, bridge rectifier 901, current-limiting resistance 902, Detection capacitance 903, bidirectional trigger diode (diode AC switch, DIAC) 904, one control circuit 905.Please the circuit of Fig. 9 and the circuit of Fig. 3 are made comparisons, both difference only has the difference of switch.Because the interchange testing mechanism of the circuit of Fig. 9 is identical with the interchange testing mechanism of the circuit of Fig. 3, therefore do not repeat them here.
Figure 10 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the alternating current testing circuit 801 of general lighting integrated lamp.Please refer to Figure 10, this alternating current testing circuit 801 comprises above-mentioned resistance plug-in unit 701, above-mentioned lamp switch 702, bridge rectifier 901, current-limiting resistance 902, Detection capacitance 903, bidirectional trigger diode (diode AC switch, DIAC) 904, flyback DC-DC converter 1001, microprocessor 1002, draws high resistance R101, an optical coupler (Photo coupler) 1003, battery 802, battery charger 805, lamp driving circuit 806, discharge circuit 804 and LED lamp 807.Flyback DC-DC converter 1001 is intended for power factor correction equally, and it comprises a starting resistance R100, a pulse width modulation circuit U100, an electronic switch S100, rectifier diode D100, D101, commutation capacitor C100, C101 and transformer T100.At this, alternating current testing circuit 801 mainly based on microprocessor 1002, because microprocessor 1002 belongs to vulnerabilities scan, and alternating current belongs to forceful electric power, in order to make light current and strong power part be isolated preferably, ensureing safe and reliable, therefore needing electrical isolation.Please made comparisons by the circuit of the circuit of Figure 10 and Fig. 5 B, both differences only have the difference of switch.Because the interchange testing mechanism of the circuit of Figure 10 is identical with the interchange testing mechanism of the circuit of Fig. 5 B, therefore do not repeat them here.
Figure 11 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the battery charger 805 of general lighting integrated lamp or lamp driving circuit 806.Please refer to Figure 11, in this embodiment, battery charger 805 and lamp driving circuit 806 all can be implemented in order to buck-converter (Buck Converter).Same reason, the battery charger 502 of Fig. 5 B or lamp driving circuit 503 also can be implemented by buck-converter.Figure 12 illustrates the circuit diagram into the power-off lighting of a preferred embodiment of the present invention and the discharge circuit 804 of general lighting integrated lamp.Please refer to Figure 12, in this embodiment, it is implement by push-pull type transducer (Push-Pull Converter) that battery discharge returns to the discharge circuit 804 of flyback converter 1001.And the direct current that the power supply of above-mentioned microprocessor 506 and 1002 can optionally use battery charger 805 or lamp driving circuit 806 to export.Again, above-described embodiment, although be make embodiment with buck-converter or push-pull type transducer, art person skilled should be known, according to the difference of design, can select other forms of DC-DC converter, as type of voltage step-up/down converter (Buck-Boos t Converter), therefore the present invention is not limited with above-described embodiment.
In sum, spirit of the present invention is to utilize single bypass parallel impedance of cutting pass, and detect the impedance voltage/current status of above-mentioned parallel connection, to determine whether to have a power failure.Execution mode optionally directly can be selected indicator light switch (neon switch) or utilize the resistance plug-in unit of the embodiment of the present invention to insert and singly cut pass.This kind of power sense circuit of the embodiment of the present invention, owing to need not carry out the work of rewiring, in other words, does not need again to remove old decoration yet, just can install power-off lighting and general lighting integrated lamp.
The specific embodiment proposed in the detailed description of preferred embodiment only illustrates technology contents of the present invention in order to convenient, but not the present invention is narrowly limited to above-described embodiment, do not exceeding the claims in the present invention, the many variations done is implemented, and all belongs to right of the present invention.Therefore protection scope of the present invention is when being as the criterion depending on upper attached claims of applying for a patent.
Claims (14)
1. power-off lighting and a general lighting integrated lamp, be coupled in an AC power, it is characterized in that, described AC power has one first and exchanges end and one second interchange end,
Wherein, described power-off lighting and general lighting integrated lamp controlled by a lamp switch, described lamp switch comprises a first end, one second end and an indicator light circuit, wherein, the first end of described lamp switch couples described first and exchanges end, couple described indicator light circuit between the first end of described lamp switch and the second end of described lamp switch, when described lamp switch is closed by user, the indicator light in described indicator light circuit is lighted to represent that switch cuts out;
Wherein, described power-off lighting and general lighting integrated lamp comprise:
One alternating current testing circuit, between the second end being coupled in described lamp switch exchanges with described second and holds, wherein, when described lamp switch is closed, described alternating current testing circuit is by described indicator light circuit, the second end detecting described lamp switch exchanges the electricity Ya ∕ current status between holding with described second, judge that current state is a power down mode or a normal operating conditions;
One battery, is configured at described power-off lighting and general lighting integrated lamp, in order to supply electrical power to described power-off lighting and general lighting integrated lamp after a loss of power; And
One light fixture integrated circuit, comprises first input end and one second input, and wherein, the first input end of described light fixture integrated circuit couples the second end of described lamp switch, and the second input of described light fixture integrated circuit couples described second and exchanges end;
Wherein, when described lamp switch is opened, described light fixture integrated circuit utilizes the described AC power received to light light fixture in described light fixture integrated circuit,
Wherein, close at described lamp switch, and when described alternating current testing circuit is judged to be described normal operating conditions, described light fixture integrated circuit extinguishes the light fixture in described light fixture integrated circuit,
Wherein, when described lamp switch is closed, and when described alternating current testing circuit is judged to be described power down mode, described light fixture integrated circuit utilizes the electric power of the described battery received to light light fixture in described light fixture integrated circuit.
2. power-off lighting according to claim 1 and general lighting integrated lamp, is characterized in that, the described indicator light circuit of described lamp switch comprises:
One first current-limiting resistance, comprises a first end and one second end, and wherein, the first end of described first current-limiting resistance couples the first end of described lamp switch; And
One indicator light, comprises a first end and one second end, and wherein, the first end of described indicator light couples the second end of described first current-limiting resistance, and the second end of described indicator light couples the second end of described lamp switch.
3. power-off lighting according to claim 1 and general lighting integrated lamp, is characterized in that, described alternating current testing circuit comprises:
One bridge rectifier, comprise a first input end, the second input, one first rectifier terminal and one second rectifier terminal, wherein, the first input end of described bridge rectifier couples the second end of described lamp switch, second input of described bridge rectifier couples described second and exchanges end, and the second rectifier terminal of described bridge rectifier couples one first and connects voltage altogether;
One second current-limiting resistance, comprises a first end and one second end, and wherein, the first end of described second current-limiting resistance couples the first rectifier terminal of described bridge rectifier;
One Detection capacitance, comprises a first end and one second end, and wherein, the first end of described Detection capacitance couples the second end of described second current-limiting resistance, and the second end of described Detection capacitance couples described first and connects voltage altogether;
One threshold switching voltage, comprises a first end and one second end, wherein, the first end of described threshold switching voltage couples the second end of described second current-limiting resistance, wherein, when the voltage at the two ends of described threshold switching voltage is greater than a threshold voltage, described threshold switching voltage conducting; And
One control circuit, in order to the electricity Ya ∕ current status according to described threshold switching voltage, judges that current state is as described power down mode or described normal operating conditions.
4. power-off lighting according to claim 3 and general lighting integrated lamp, is characterized in that, described control circuit comprises:
One optical coupler, comprise a first input end, one second input, one first output and one second output, wherein, the first input end of described optical coupler couples the second end of described threshold switching voltage, second input of described optical coupler couples described first and connects voltage altogether, and the second output of described optical coupler couples one second and connects voltage altogether;
One draws high resistance, comprises a first end and one second end, wherein, described in draw high-resistance first end to couple a logic high voltage, described in draw high-resistance second end to couple the first output of described optical coupler; And
One microprocessor, comprises a test side, and wherein, the test side of described microprocessor couples the first output of described optical coupler,
Wherein, when the voltage of the test side of described microprocessor is in a Preset Time, continue to maintain described logic high voltage, described microprocessor judges to enter described power down mode.
5. power-off lighting according to claim 3 and general lighting integrated lamp, is characterized in that, described threshold switching voltage is a bidirectional trigger diode.
6. power-off lighting according to claim 3 and general lighting integrated lamp, is characterized in that, described light fixture integrated circuit comprises:
One circuit of power factor correction, couple the first rectifier terminal of described bridge rectifier and described second rectifier terminal, wherein, described circuit of power factor correction comprises one first output and one second output, respectively in order to export one first direct voltage and one second direct voltage, and carry out power factor correction;
One battery charger, comprise an input and an output, wherein, the input of described battery charger couples the first output of described circuit of power factor correction, the output of described battery charger couples described battery, in order to transfer described first direct voltage to a battery charging voltage, described battery is charged;
One lamp driving circuit, comprises an input and an output, and wherein, the input of described lamp driving circuit couples the second output of described circuit of power factor correction in order to transfer described second direct voltage to a light fixture driving voltage; And
One LED lamp, couples the output of described lamp driving circuit, in order to receive described light fixture driving voltage.
7. power-off lighting according to claim 6 and general lighting integrated lamp, is characterized in that, described circuit of power factor correction comprises:
One transformer, comprise first side winding, one first secondary side winding and one second secondary side winding, wherein, described first side winding comprises a first end and one second end, described first secondary side winding and described second secondary side winding comprise a first end and one second end respectively, the first end of described first side winding couples the first rectifier terminal of described bridge rectifier, and the second end of described secondary side winding couples described second and connects voltage altogether;
One electronic switch, comprises a first end, one second end and a control end, and wherein, the first end of described electronic switch couples the second end of the first side winding of described transformer, and the second end of described electronic switch couples described first and connects voltage altogether;
One pulse width modulation circuit, couples the control end of described electronic switch, controls the ON-OFF of the first end of described electronic switch and the second end of described electronic switch with pulse wave width modulation, to control the voltage of the secondary side winding of described transformer;
One first rectifier diode, comprises an anode and a negative electrode, and wherein, the anode of described first rectifier diode couples the first end of described first secondary side winding, and the negative electrode of described first rectifier diode couples the input of described battery charger;
One first commutation capacitor, comprises a first end and one second end, and wherein, the first end of described first commutation capacitor couples the negative electrode of described first rectifier diode, and the second end of described first commutation capacitor couples described second and connects voltage altogether;
One second rectifier diode, comprises an anode and a negative electrode, and wherein, the anode of described second rectifier diode couples the first end of described second secondary side winding, and the negative electrode of described second rectifier diode couples the input of described lamp driving circuit; And
One second commutation capacitor, comprises a first end and one second end, and wherein, the first end of described second commutation capacitor couples the negative electrode of described second rectifier diode, and the second end of described second commutation capacitor couples described second and connects voltage altogether.
8. a power-off lighting and general lighting integrated lamp, be coupled in an AC power, it is characterized in that, described AC power has one first and exchanges end and one second interchange end, wherein, described power-off lighting and general lighting integrated lamp controlled by a lamp switch, wherein, described lamp switch comprises a first end, one first jack, one second end and one second jack, wherein, the first end of described lamp switch couples described first by described first jack and exchanges end, and wherein, described power-off lighting and general lighting integrated lamp comprise:
One resistance plug-in unit, comprise one first pin, one second pin, one first jack and one second jack, wherein, first pin of described resistance plug-in unit couples the first end of described lamp switch by the first jack of described lamp switch, second pin of described resistance plug-in unit couples the second end of described lamp switch by the second jack of described lamp switch, the first jack of described resistance plug-in unit couples described first and exchanges end;
One alternating current testing circuit, between the second jack being coupled in described resistance plug-in unit exchanges with described second and holds, wherein, when described lamp switch is closed, described alternating current testing circuit is by described resistance plug-in unit, the second end detecting described lamp switch exchanges the electricity Ya ∕ current status between holding with described second, judge that current state is a power down mode or a normal operating conditions;
One battery, is configured at described power-off lighting and general lighting integrated lamp, in order to supply electrical power to described power-off lighting and general lighting integrated lamp after a loss of power; And
One light fixture integrated circuit, comprises first input end and one second input, and wherein, the first input end of described light fixture integrated circuit couples the second jack of described resistance plug-in unit, and the second input of described light fixture integrated circuit couples described second and exchanges end;
Wherein, when described lamp switch is opened, described light fixture integrated circuit utilizes the described AC power received to light light fixture in described light fixture integrated circuit,
Wherein, close at described lamp switch, and when described alternating current testing circuit is judged to be described normal operating conditions, described light fixture integrated circuit extinguishes the light fixture in described light fixture integrated circuit,
Wherein, when described lamp switch is closed, and when described alternating current testing circuit is judged to be described power down mode, described light fixture integrated circuit utilizes the electric power of the described battery received to light light fixture in described light fixture integrated circuit.
9. power-off lighting according to claim 8 and general lighting integrated lamp, is characterized in that, comprises between the first pin of described resistance plug-in unit and the second pin:
One first current-limiting resistance, comprises a first end and one second end, and wherein, the first end of described first current-limiting resistance couples the first pin of described resistance plug-in unit, and the second end of described first current-limiting resistance couples the second pin of described resistance plug-in unit.
10. power-off lighting according to claim 8 and general lighting integrated lamp, is characterized in that, described alternating current testing circuit comprises:
One bridge rectifier, comprise a first input end, the second input, one first rectifier terminal and one second rectifier terminal, wherein, the first input end of described bridge rectifier couples the second end of described lamp switch, second input of described bridge rectifier couples described second and exchanges end, and the second rectifier terminal of described bridge rectifier couples one first and connects voltage altogether;
One second current-limiting resistance, comprises a first end and one second end, and wherein, the first end of described second current-limiting resistance couples the first rectifier terminal of described bridge rectifier;
One Detection capacitance, comprises a first end and one second end, and wherein, the first end of described Detection capacitance couples the second end of described second current-limiting resistance, and the second end of described Detection capacitance couples described first and connects voltage altogether;
One threshold switching voltage, comprises a first end and one second end, wherein, the first end of described threshold switching voltage couples the second end of described second current-limiting resistance, wherein, when the voltage at the two ends of described threshold switching voltage is greater than a threshold voltage, described threshold switching voltage conducting; And
One control circuit, in order to the electricity Ya ∕ current status according to described threshold switching voltage, judges that current state is as described power down mode or described normal operating conditions.
11. power-off lightings according to claim 10 and general lighting integrated lamp, is characterized in that, described control circuit comprises:
One optical coupler, comprise a first input end, one second input, one first output and one second output, wherein, the first input end of described optical coupler couples the second end of described threshold switching voltage, second input of described optical coupler couples described first and connects voltage altogether, and the second output of described optical coupler couples one second and connects voltage altogether;
One draws high resistance, comprises a first end and one second end, wherein, described in draw high-resistance first end to couple a logic high voltage, described in draw high-resistance second end to couple the first output of described optical coupler; And
One microprocessor, comprises a test side, and wherein, the test side of described microprocessor couples the first output of described optical coupler,
Wherein, when the voltage of the test side of described microprocessor is in a Preset Time, continue to maintain described logic high voltage, described microprocessor judges to enter described power down mode.
12. power-off lightings according to claim 10 and general lighting integrated lamp, is characterized in that, described threshold switching voltage is a bidirectional trigger diode.
13. power-off lightings according to claim 10 and general lighting integrated lamp, is characterized in that, described light fixture integrated circuit comprises:
One circuit of power factor correction, couple the first rectifier terminal of described bridge rectifier and described second rectifier terminal, wherein, described circuit of power factor correction comprises one first output and one second output, respectively in order to export one first direct voltage and one second direct voltage, and carry out power factor correction;
One battery charger, comprise an input and an output, wherein, the input of described battery charger couples the first output of described circuit of power factor correction, the output of described battery charger couples described battery, in order to transfer described first direct voltage to a battery charging voltage, described battery is charged;
One lamp driving circuit, comprises an input and an output, and wherein, the input of described lamp driving circuit couples the second output of described circuit of power factor correction in order to transfer described second direct voltage to a light fixture driving voltage; And
One LED lamp, couples the output of described lamp driving circuit, in order to receive described light fixture driving voltage.
14. power-off lightings according to claim 13 and general lighting integrated lamp, is characterized in that, described circuit of power factor correction comprises:
One transformer, comprise first side winding, one first secondary side winding and one second secondary side winding, wherein, described first side winding comprises a first end and one second end, described first secondary side winding and described second secondary side winding comprise a first end and one second end respectively, the first end of described first side winding couples the first rectifier terminal of described bridge rectifier, and the second end of described secondary side winding couples described second and connects voltage altogether;
One electronic switch, comprises a first end, one second end and a control end, and wherein, the first end of described electronic switch couples the second end of the first side winding of described transformer, and the second end of described electronic switch couples described first and connects voltage altogether;
One pulse width modulation circuit, couples the control end of described electronic switch, controls the ON-OFF of the first end of described electronic switch and the second end of described electronic switch with pulse wave width modulation, to control the voltage of the secondary side winding of described transformer;
One first rectifier diode, comprises an anode and a negative electrode, and wherein, the anode of described first rectifier diode couples the first end of described first secondary side winding, and the negative electrode of described first rectifier diode couples the input of described battery charger;
One first commutation capacitor, comprises a first end and one second end, and wherein, the first end of described first commutation capacitor couples the negative electrode of described first rectifier diode, and the second end of described first commutation capacitor couples described second and connects voltage altogether;
One second rectifier diode, comprises an anode and a negative electrode, and wherein, the anode of described second rectifier diode couples the first end of described second secondary side winding, and the negative electrode of described second rectifier diode couples the input of described lamp driving circuit; And
One second commutation capacitor, comprises a first end and one second end, and wherein, the first end of described second commutation capacitor couples the negative electrode of described second rectifier diode, and the second end of described second commutation capacitor couples described second and connects voltage altogether.
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