CN204408675U - Illumination control circuit and lighting apparatus - Google Patents

Illumination control circuit and lighting apparatus Download PDF

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Publication number
CN204408675U
CN204408675U CN201520007864.6U CN201520007864U CN204408675U CN 204408675 U CN204408675 U CN 204408675U CN 201520007864 U CN201520007864 U CN 201520007864U CN 204408675 U CN204408675 U CN 204408675U
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China
Prior art keywords
resistance
detection module
lighting
relay
power supply
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Expired - Fee Related
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CN201520007864.6U
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Chinese (zh)
Inventor
曾涛峰
杨勇练
邓宝宁
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Shenzhen H&T Intelligent Control Co Ltd
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Shenzhen H&T Intelligent Control Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a kind of illumination control circuit and lighting apparatus, this illumination control circuit starts for controlling stand-by power supply or closes, it comprises switch, relay, first detection module and control module, switch-linear hybrid is on the live wire of AC network, first detection module is connected between live wire and zero line through relay, and control module is connected with the control end of relay, first detection module respectively; When AC network Non voltage output, by the state of first detection module sampling switch, when to sample switch be closure state to first detection module, then controlling stand-by power supply is power illuminating device, when first detection module sample switch be off state time, then control stand-by power supply and disconnect the connection with lighting device, lighting device cuts out.By above-mentioned illumination control circuit, by the switch unlatching of management and control lighting device intelligently or closedown according to the actual requirements, the energy can be saved.

Description

Illumination control circuit and lighting apparatus
Technical field
The utility model relates to lighting field, particularly relates to a kind of illumination control circuit and lighting apparatus.
Background technology
At present, general emergency light all possesses reserve battery.When grid cut-off, then reserve battery will start immediately, with thinking that emergency light provides power supply, until the electricity stored by reserve battery exhausts; And well-lighted place by day, when grid cut-off, at all without the need to lighting, therefore, this type of emergency light causes the waste of the energy.And household illuminating lamp is not owing to having battery, can not light when grid cut-off.
Utility model content
Main purpose of the present utility model is to provide a kind of illumination control circuit, aims to provide the control circuit of the startup of the stand-by power supply controlling lighting apparatus.
For achieving the above object, the utility model provides a kind of illumination control circuit, be applied to lighting apparatus, this lighting apparatus comprises lighting device, stand-by power supply and illumination control circuit, described lighting device and described stand-by power supply are electrically connected, described illumination control circuit is for controlling stand-by power supply, it comprises switch, relay, first detection module and control module, described switch-linear hybrid is on the live wire of AC network, described first detection module is connected between live wire and zero line through described relay, control end and the first detection module of described control module and described relay are connected, wherein, when described AC network Non voltage output, described control module controls described relay and is communicated with described first detection module and ac circuit, and output pulse signal is to described first detection module, the state of described first detection module switch according to described pulse signal sampling, and output voltage signal to control module, when the voltage that described first detection module exports is less than or equal to the preset value of control module, described switch is in closure state, then described control module controls described stand-by power supply for described lighting device provides power supply, when the voltage that described first detection module exports is greater than the preset value of control module, described switch is in off-state, then described control module controls described stand-by power supply and described lighting device disconnects, and described lighting device cuts out.
Preferably, described first detection module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance that are connected in series successively, one end of described first resistance is connected with the pulse signal output end of described control module, and the other end of described first resistance is connected with the voltage detecting end of described second resistance, described control module; Common port between described 3rd resistance and described 4th resistance is connected to live wire through described relay; Common port between described 5th resistance and described 6th resistance is connected to zero line through described relay; Described 6th resistance is away from one end ground connection of described 5th resistance.
Preferably, described first detection module also comprises the first diode for isolating AC signal and the second diode, described first Diode series is between described 3rd resistance and described 4th resistance, and the anode of described first diode is connected with described 3rd resistance, the negative electrode of described first diode is connected with described 4th resistance; The negative electrode of described second diode is connected on the common port between described second resistance and described 3rd resistance, the plus earth of described second diode.
Preferably, described pulse signal is the square-wave signal that duty ratio is less than 0.5.
Preferably, described illumination control circuit also comprises the second detection module of the zero cross signal for detecting ac circuit, described second detection module is connected between live wire and zero line through described relay, the output of described second detection module is connected with described control module, when described second detection module detect there is zero cross signal in described ac circuit time, described control module controls described relay and is communicated with described second detection module and ac circuit, provides power supply by described ac circuit to described lighting device; When described ac circuit being detected without zero cross signal, described control module controls described relay is switched to first detection module and ac circuit connection by the connection of described second detection module and ac circuit.
Preferably, described second detection module comprises optocoupler, the 7th resistance, the 8th resistance and the first electric capacity, one end of described 7th resistance is connected on DC power supply VCC, and the other end of described 7th resistance is connected with the collector electrode of the phototriode of described optocoupler inside, one end of the 8th resistance respectively; The other end of described 8th resistance is through described first capacity earth; Common port between described 8th resistance and described first electric capacity is connected to described control module as the output of the second detection module; The grounded emitter of the phototriode of described optocoupler inside, the anode of the light-emitting diode of described optocoupler inside is connected with live wire through described relay, and the negative electrode of the light-emitting diode of described optocoupler inside is connected with zero line through described relay.
Preferably, described second detection module also comprises the 9th resistance, the tenth resistance of current limliting, between the anode that described 9th resistance is connected to the light-emitting diode of described optocoupler inside and described relay; Between the negative electrode that described tenth resistance is connected to the light-emitting diode of described optocoupler inside and described relay.
Preferably; described second detection module also comprises the 3rd diode for the protection of optocoupler; the anode of described 3rd diode is connected on the negative electrode of the light-emitting diode of described optocoupler inside and the common port of described tenth resistance, and the negative electrode of described 3rd diode is connected on the anode of the light-emitting diode of described optocoupler inside and the common port of described 9th resistance.
Preferably, described second detection module also comprises the second electric capacity for preventing signal disturbing, and described second electric capacity and described 3rd diodes in parallel are connected between described 9th resistance and described tenth resistance.
In addition, for achieving the above object, the utility model additionally provides a kind of lighting apparatus, described lighting apparatus comprises lighting device and stand-by power supply, described lighting device and described stand-by power supply are electrically connected, this lighting apparatus also comprises illumination control circuit, this illumination control circuit is for controlling stand-by power supply, it comprises switch, relay, first detection module and control module, described switch-linear hybrid is on the live wire of AC network, described first detection module is connected between live wire and zero line through described relay, described control module respectively with the control end of described relay, first detection module connects, wherein, when described AC network Non voltage output, described control module controls described relay and is communicated with described first detection module and ac circuit, and output pulse signal is to described first detection module, the state of described first detection module switch according to described pulse signal sampling, and output voltage signal to control module, when the voltage that described first detection module exports is less than or equal to the preset value of control module, described switch is in closure state, then described control module controls described stand-by power supply for described lighting device provides power supply, when the voltage that described first detection module exports is greater than the preset value of control module, described switch is in off-state, then described control module controls described stand-by power supply and described lighting device disconnects, and described lighting device cuts out
A kind of illumination control circuit provided by the utility model and comprise the lighting apparatus of this illumination control circuit, when AC network Non voltage output, controlling stand-by power supply according on off state is power illuminating device, when to sample switch be closure state to first detection module, then controlling stand-by power supply is power illuminating device, when first detection module sample switch be off state time, then control stand-by power supply and disconnect and the connection of lighting device, lighting device cuts out.By above-mentioned illumination control circuit, when needs lighting device works on, then Closing Switch, when without the need to lighting device, then cut-off switch, thus management and control can be carried out according to the actual requirements intelligently, save the energy.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of the utility model first embodiment.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of illumination control circuit.
In the present embodiment, with reference to Fig. 1, this illumination control circuit is applied to lighting apparatus, described lighting apparatus comprises lighting device 500, stand-by power supply 400 and illumination control circuit, described lighting device 500 is electrically connected with described stand-by power supply 400, described illumination control circuit is for controlling stand-by power supply 400, it comprises interrupteur SW 1, relay R M1, first detection module 100 and control module 200, described interrupteur SW 1 is arranged on the live wire L of AC network, described first detection module 100 is connected between live wire L and zero line N through described relay R M1, described control module 200 respectively with the control end of described relay R M1, first detection module 100 connects, wherein, when described AC network Non voltage output, described control module 200 controls described relay R M1 and is communicated with described first detection module 100 and ac circuit, and output pulse signal is to described first detection module 100, the state of described first detection module 100 interrupteur SW 1 according to described pulse signal sampling, and output voltage signal to control module 200, when the voltage that described first detection module 100 exports is less than or equal to the preset value of control module 200, described interrupteur SW 1 is in closure state, then described control module 200 controls described stand-by power supply 400 for described lighting device 500 provides power supply, when the voltage that described first detection module 100 exports is greater than the preset value of control module 200, described interrupteur SW 1 is in off-state, then described control module 200 controls described stand-by power supply 400 and disconnects with described lighting device 500, and described lighting device 500 cuts out.
Particularly, this relay R M1 specifically comprises the first commutator and the second commutator, and the stiff end a of the first commutator is connected with the live wire L of AC network, and the stiff end d of the second commutator is connected with the zero line N of AC network; The normally closed b end of the first commutator is connected with the 9th resistance R9 of the second detection module 300, and the Chang Kaiduan c of the first commutator is connected with the negative electrode of the first diode D1; The normal-closed end e of the second commutator is connected with the tenth resistance R10 of the second detection module 300, and the Chang Kaiduan f of the second commutator is connected with the common port of the 5th resistance R5 and the 6th resistance R6.The control end I/O3 of control module 200 is connected with the control end of relay R M1, control the first commutator, the simultaneously action of the second commutator, namely control first detection module 100 and be connected between live wire L and zero line N or the second detection module 300 is connected between live wire L and zero line N.
When AC network no-output voltage (such as AC network power-off), then now first commutator of control module 200 control relay RM1 and the second commutator are switched to Chang Kaiduan c, f simultaneously, thus first detection module 100 is connected between live wire L and zero line N, and the pulse signal output end I/O1 of control module 200 sends pulse signal to first detection module 100, after first detection module 100 receives this pulse signal, will the state of interrupteur SW 1 be gathered period at the high level of this pulse signal:
Owing to there is other electrical equipment between live wire L and zero line N, when interrupteur SW 1 is off state, first detection module 100 is only there is between live wire L and zero line N, the voltage of first detection module 100 exports the voltage detecting end I/O2 of control module 200 to, because the resistance of each series resistance of first detection module 100 inside is determined, the magnitude of voltage that then first detection module 100 exports will be greater than control module 200 internal preset value, then control wave output I/O1 is continued output pulse signal by control module 200, continues to sample to the state of switch SW1.Control module 200 will disconnect being communicated with of stand-by power supply 400 and lighting device 500, and lighting device 500 does not work.
In the present embodiment, when interrupteur SW 1 is off state, preferred more than the 4V of voltage that first detection module 100 exports.
When interrupteur SW 1 is closure state, now each electrical equipment will also be connected between live wire L and zero line N, now to be equivalent to resistance in parallel with each resistance summation of first detection module 100 inside for each electrical equipment, parallel connection will produce dividing potential drop effect, then the voltage of first detection module 100 output is by low for the magnitude of voltage exported in the on-state than interrupteur SW 1, namely the voltage that first detection module 100 exports will be less than or equal to the preset value of control module 200 inside, then control stand-by power supply 400 is communicated with lighting device 500 by control module 200, by stand-by power supply 400 for lighting device 500 provides power supply, realize when AC network power-off, lighting device 500 continues to light.
In the present embodiment, when interrupteur SW 1 is off state, the preferred 3V to 4V of voltage that first detection module 100 exports.
By above-mentioned illumination control circuit, when AC network Non voltage output, by the state of first detection module 100 sampling switch SW1, controlling stand-by power supply 400 whether for lighting device 500 provides power supply according to the state of interrupteur SW 1, when without the need to using lighting device 500, then interrupteur SW 1 can be disconnected, control module 200 will disconnect stand-by power supply 400 and lighting device 500, lighting device 500 will not work, and save the energy of stand-by power supply 400, be conducive to environmental protection; When still needing to use lighting device 500, then interrupteur SW 1 can be closed, control stand-by power supply 400 is communicated with lighting device 500 by control module 200, powered for lighting device 500 by stand-by power supply 400, lighting device 500 is lighted continuing, thus illumination apparatus 500 can carry out management and control according to the actual requirements, avoid energy waste.
In addition, because stand-by power supply 400 generally selects rechargeable battery, when after battery supplied a period of time, be subject to himself electric quantitative limitation, along with the consumption of electricity, its voltage will decrease, after being reduced to certain level, put to prevent the mistake of battery, now, control relay RM1 is switched to the second detection module 300 and the connection of ac circuit by first detection module 100 and the connection of ac circuit by control module 200, when electrical network exists AC signal, is charged to stand-by power supply 400 by AC network.
Particularly, described pulse signal is the square-wave signal that duty ratio is less than 0.5.Because control module 200 is sending pulse signal by consuming the battery of stand-by power supply 400, in order to reduce power consumption, being preferably high level period and accounting for the less square-wave signal of the ratio of whole pulse signal cycle.
Further, described first detection module 100 comprises the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6 that are connected in series successively, one end of described first resistance R1 is connected with the pulse signal output end I/O1 of described control module 200, and the other end g of described first resistance R1 is connected with the voltage detecting end I/O2 of described second resistance R2, described control module 200; Common port between described 3rd resistance R3 and described 4th resistance R4 is connected to live wire L through described relay R M1; Common port between described 5th resistance R5 and described 6th resistance R6 is connected to zero line N through described relay R M1; Described 6th resistance R6 is away from one end ground connection of described 5th resistance R5.
First resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6 are connected between the pulse signal output end I/O1 of control module 200 and ground, and the voltage detecting end I/O2 that the common port g between the first resistance R1 and the second resistance R2 exports control module 200 to as output is detected, then when interrupteur SW 1 disconnects, the magnitude of voltage that first detection module 100 exports is the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6 dividing potential drop gained; When interrupteur SW 1 closes, 4th resistance R4 and the 5th resistance R5 is by the resistor coupled in parallel with other electrical equipment equivalences in ac circuit, then the equivalent resistance of the 4th resistance R4 and the 5th resistance R5 will reduce, thus the voltage of the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5 and the 6th resistance R6 dividing potential drop gained will reduce, thus can the real-time status of judgement interrupteur SW 1 of intelligence according to detecting magnitude of voltage that first detection module 100 exports.
Further, described first detection module 100 also comprises the first diode D1 for isolating AC signal and the second diode D2, described first diode D1 is connected between described 3rd resistance R3 and described 4th resistance R4, and the anode of described first diode D1 is connected with described 3rd resistance R3, the negative electrode of described first diode D1 is connected with described 4th resistance R4; The negative electrode of described second diode D2 is connected on the common port between described second resistance R2 and described 3rd resistance R3, the plus earth of described second diode D2.
Between AC network turnoff time, may occur that AC network is electricly unexpected, in order to prevent unexpected AC signal to the impact of first detection module 100, and then burn out control module 200, the first diode D1 is connected in series between the 3rd resistance R3 with the 4th resistance R4, and on the common port of earth terminal with the second resistance R2, the 3rd resistance R3, being connected the second diode D2 existing, for preventing the impact of the voltage of live wire L.
Further, described illumination control circuit also comprises the second detection module 300 of the zero cross signal for detecting ac circuit, described second detection module 300 is connected between live wire L and zero line N through described relay R M1, the output of described second detection module 300 is connected with described control module 200, when described second detection module 300 detect there is zero cross signal in described ac circuit time, described control module 200 controls described relay R M1 and is communicated with described second detection module 300 and ac circuit, power supply is provided to described lighting device 500 by described ac circuit, when described ac circuit being detected without zero cross signal, described control module 200 controls described relay R M1 is switched to first detection module 100 and ac circuit connection by described second detection module 300 and the connection of ac circuit.
When the non-power-off of AC network, by AC network for lighting device 500 provides power supply, only when AC network power-off, just enable stand-by power supply 400, therefore, this illumination control circuit is also provided for the second detection module 300 detecting AC signal; When AC network has AC signal to export, first commutator and second commutator of this control module 200 control relay RM1 are switched to normal-closed end b, e simultaneously, thus the second detection module 300 is connected between live wire L and zero line N, now zero cross signal detected by the second detection module 300, control module 200 receives this zero cross signal, then control by ac circuit for described lighting device 500 provides power supply, and the second detection module 300 continues the zero cross signal detecting ac circuit; When second detection module 300 detects this ac circuit without zero cross signal, then first commutator of control module 200 control relay RM1 and the second commutator are switched to Chang Kaiduan c, f by normal-closed end b, e simultaneously, first detection module 100 is connected with ac circuit, by the state of first detection module 100 sense switch SW1.
Further, described second detection module 300 comprises optocoupler U1, the 7th resistance R7, the 8th resistance R8 and the first electric capacity C1, one end of described 7th resistance R7 is connected on DC power supply VCC, and the other end of described 7th resistance R7 is connected with the collector electrode of the phototriode of described optocoupler U1 inside, one end of the 8th resistance R8 respectively; The other end of described 8th resistance R8 is through described first electric capacity C1 ground connection; Common port h between described 8th resistance R8 and described first electric capacity C1 is connected to the I/O4 port of described control module 200 as the output of the second detection module 300; The grounded emitter of the phototriode of described optocoupler U1 inside, the anode of the light-emitting diode of described optocoupler U1 inside is connected with live wire L through described relay R M1, and the negative electrode of the light-emitting diode of described optocoupler U1 inside is connected with zero line N through described relay R M1.
When ac circuit has voltage to export, on the bleeder circuit that AC signal is coupled to the 7th resistance R7 by optocoupler U1, the 8th resistance R8 forms, because AC signal is in positive, anti-phase alternate cycles, thus first detection module 100 by output pulse signal to control module 200, according to the output of the second detection module 300, control module 200 judges that ac circuit has voltage to export, then control lighting device 500 and provide power supply by AC network, and AC network is also for charging for stand-by power supply 400.
When ac circuit Non voltage output, optocoupler U1 couples a signal to the 7th resistance R7 and the 8th resistance R8, thus the first resistance R1 exports high level according to DC power supply VCC, thus the high level signal continued that control module 200 exports according to the second detection module 300 judges ac circuit Non voltage output, then control relay RM1 switches to first detection module 100 and carries out interrupteur SW 1 state-detection.
Particularly, the preferred 5V of this DC power supply VCC.
Further, described second detection module 300 also comprises the 9th resistance R9, the tenth resistance R10 of current limliting, between the anode that described 9th resistance R9 is connected to the light-emitting diode of described optocoupler U1 inside and described relay R M1; Between the negative electrode that described tenth resistance R10 is connected to the light-emitting diode of described optocoupler U1 inside and described relay R M1.
Because the AC signal of AC network is generally provided by civil power, its output current is comparatively large, in order to prevent super-high-current from impacting optocoupler U1, connects the 9th resistance R9, the tenth resistance R10 respectively for current limliting at optocoupler U1 AC.
Further; described second detection module 300 also comprises the 3rd diode D3 for the protection of optocoupler U1; the anode of described 3rd diode D3 is connected on the negative electrode of the light-emitting diode of described optocoupler U1 inside and the common port of described tenth resistance R10, and the negative electrode of described 3rd diode D3 is connected on the anode of the light-emitting diode of described optocoupler U1 inside and the common port of described 9th resistance R9.
Due to positive, the inversion signal alternate cycles of AC signal, when live wire L be just, zero line N is for time negative, optocoupler U1 works, AC signal is coupled, as live wire L for negative, zero line N are timing, the light-emitting diode cut-off of optocoupler U1 inside, now the 3rd diode D3 and AC signal form loop, puncture anti-phase for the light-emitting diode of optocoupler U1 inside to prevent excessive alternating current.
Further, described second detection module 300 also comprises the second electric capacity C2 for preventing signal disturbing, and described second electric capacity C2 and described 3rd diode D3 is connected in parallel between described 9th resistance R9 and described tenth resistance R10.
At the 3rd diode D3 two ends, also one second electric capacity C2 in parallel is used for filtering, filters out the impact of high order harmonic component on the second detection module 300, improves the accuracy of the second detection module 300.
The utility model also provides a kind of lighting apparatus, this lighting apparatus comprises lighting device and stand-by power supply, described lighting device and described stand-by power supply are electrically connected, this lighting apparatus also comprises illumination control circuit, the structure of this illumination control circuit, operation principle and the beneficial effect that brings, all with reference to the description of above-described embodiment, do not repeat them here.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (10)

1. an illumination control circuit, be applied to lighting apparatus, described lighting apparatus comprises lighting device, stand-by power supply and illumination control circuit, described lighting device and described stand-by power supply are electrically connected, described illumination control circuit is for controlling stand-by power supply, it is characterized in that, described illumination control circuit comprises switch, relay, first detection module and control module, described switch-linear hybrid is on the live wire of AC network, described first detection module is connected between live wire and zero line through described relay, control end and the first detection module of described control module and described relay are connected, wherein,
When described AC network Non voltage output, described control module controls described relay and is communicated with described first detection module and ac circuit, and output pulse signal is to described first detection module, the state of described first detection module switch according to described pulse signal sampling, and output voltage signal to control module, when the voltage that described first detection module exports is less than or equal to the preset value of control module, described switch is in closure state, then described control module controls described stand-by power supply for described lighting device provides power supply; When the voltage that described first detection module exports is greater than the preset value of control module, described switch is in off-state, then described control module controls described stand-by power supply and described lighting device disconnects, and described lighting device cuts out.
2. illumination control circuit as claimed in claim 1, it is characterized in that, described first detection module comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance that are connected in series successively, one end of described first resistance is connected with the pulse signal output end of described control module, and the other end of described first resistance is connected with the voltage detecting end of described second resistance, described control module; Common port between described 3rd resistance and described 4th resistance is connected to live wire through described relay; Common port between described 5th resistance and described 6th resistance is connected to zero line through described relay; Described 6th resistance is away from one end ground connection of described 5th resistance.
3. illumination control circuit as claimed in claim 2, it is characterized in that, described first detection module also comprises the first diode for isolating AC signal and the second diode, described first Diode series is between described 3rd resistance and described 4th resistance, and the anode of described first diode is connected with described 3rd resistance, the negative electrode of described first diode is connected with described 4th resistance; The negative electrode of described second diode is connected on the common port between described second resistance and described 3rd resistance, the plus earth of described second diode.
4. illumination control circuit as claimed in claim 1, it is characterized in that, described pulse signal is the square-wave signal that duty ratio is less than 0.5.
5. illumination control circuit as claimed in claim 1, it is characterized in that, described illumination control circuit also comprises the second detection module of the zero cross signal for detecting ac circuit, described second detection module is connected between live wire and zero line through described relay, the output of described second detection module is connected with described control module, when described second detection module detect there is zero cross signal in described ac circuit time, described control module controls described relay and is communicated with described second detection module and ac circuit, power supply is provided to described lighting device by described ac circuit, when described ac circuit being detected without zero cross signal, described control module controls described relay is switched to first detection module and ac circuit connection by the connection of described second detection module and ac circuit.
6. illumination control circuit as claimed in claim 5, it is characterized in that, described second detection module comprises optocoupler, the 7th resistance, the 8th resistance and the first electric capacity, one end of described 7th resistance is connected on DC power supply VCC, and the other end of described 7th resistance is connected with the collector electrode of the phototriode of described optocoupler inside, one end of the 8th resistance respectively; The other end of described 8th resistance is through described first capacity earth; Common port between described 8th resistance and described first electric capacity is connected to described control module as the output of the second detection module; The grounded emitter of the phototriode of described optocoupler inside, the anode of the light-emitting diode of described optocoupler inside is connected with live wire through described relay, and the negative electrode of the light-emitting diode of described optocoupler inside is connected with zero line through described relay.
7. illumination control circuit as claimed in claim 6, it is characterized in that, described second detection module also comprises the 9th resistance, the tenth resistance of current limliting, between the anode that described 9th resistance is connected to the light-emitting diode of described optocoupler inside and described relay; Between the negative electrode that described tenth resistance is connected to the light-emitting diode of described optocoupler inside and described relay.
8. illumination control circuit as claimed in claim 7; it is characterized in that; described second detection module also comprises the 3rd diode for the protection of optocoupler; the anode of described 3rd diode is connected on the negative electrode of the light-emitting diode of described optocoupler inside and the common port of described tenth resistance, and the negative electrode of described 3rd diode is connected on the anode of the light-emitting diode of described optocoupler inside and the common port of described 9th resistance.
9. illumination control circuit as described in any of claims 8, it is characterized in that, described second detection module also comprises the second electric capacity for preventing signal disturbing, and described second electric capacity and described 3rd diodes in parallel are connected between described 9th resistance and described tenth resistance.
10. a lighting apparatus, comprises lighting device and stand-by power supply, and described lighting device and described stand-by power supply are electrically connected, and it is characterized in that, described lighting apparatus also comprises illumination control circuit as claimed in any one of claims 1-9 wherein.
CN201520007864.6U 2015-01-06 2015-01-06 Illumination control circuit and lighting apparatus Expired - Fee Related CN204408675U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106686846A (en) * 2015-11-06 2017-05-17 海洋王(东莞)照明科技有限公司 Relay protection circuit and lamp
CN111552208A (en) * 2020-05-06 2020-08-18 江苏美的清洁电器股份有限公司 State control circuit, method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106686846A (en) * 2015-11-06 2017-05-17 海洋王(东莞)照明科技有限公司 Relay protection circuit and lamp
CN111552208A (en) * 2020-05-06 2020-08-18 江苏美的清洁电器股份有限公司 State control circuit, method and device

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