CN103826346A - Light fixture and control circuit thereof - Google Patents
Light fixture and control circuit thereof Download PDFInfo
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- CN103826346A CN103826346A CN201210464016.9A CN201210464016A CN103826346A CN 103826346 A CN103826346 A CN 103826346A CN 201210464016 A CN201210464016 A CN 201210464016A CN 103826346 A CN103826346 A CN 103826346A
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Abstract
The invention provides a control circuit. The control circuit comprises a voltage conversion unit, a sensing photosensitive switch, a switch tube unit and a relay unit. When the sensing photosensitive switch receives that a sensing signal is smaller than a preset time, the sensing photosensitive switch is conducted, and the switch tube unit controls the relay unit to be turned on so as to connect an external AC power supply interface to a driving unit for driving a light source to emit light; and when the sensing photosensitive switch receives that the sensing signal is equal to or greater than a preset time, the sensing photosensitive switch is conducted, and the switch tube unit controls the relay unit to be turned off so as to disconnect the external AC power supply interface from the driving unit for not driving the light source to emit light. By using the control circuit provided by the invention, the light source can be turned on or turned off without manual direct contact with the light source switch of a light fixture. The invention also provides a light fixture.
Description
Technical field
The present invention relates to lighting field, relate in particular to a kind of light fixture and control circuit thereof.
Background technology
In the time using conventional lamp to throw light on, conventionally need the manually switch of contact light fixture that the light source of described light fixture is opened.And while not needing conventional lamp to throw light on, need the switch by manually again touching light fixture that the light source of light fixture is closed.Therefore, the light source of conventional lamp is being opened or closed, all needing user manually directly to contact the switch of light fixture.
Summary of the invention
The object of the present invention is to provide a kind of light fixture and control circuit thereof, need manually the directly light source switch of contact light fixture can realize the unlatching to lamp light source or close.
In order to solve the problems of the technologies described above, the invention provides a kind of control circuit, between the extraneous AC power interface of light fixture and the driver element of lamp light source, to control described driver element and whether drive described light source for being connected to, described control circuit comprises:
Voltage conversion unit, is connected to described extraneous AC power interface, to receive alternating voltage, and converts the alternating voltage receiving to direct voltage;
Induction photosensitive switch, is connected to described voltage conversion unit;
Switching tube unit, is connected to described induction photosensitive switch and described voltage conversion unit;
Relay unit, the pipe unit that opens the light described in being connected to, described driver element and described extraneous AC power interface,
Wherein, the time of reception that described induction photosensitive switch basis receives the induced signal of extraneous transmitting apparatus generation is controlled described voltage conversion unit and in described time of reception, is exported described direct voltage to described switching tube unit, thereby make the break-make of relay unit described in described switching tube unit controls control being connected between described extraneous AC power interface and described driver element, thereby control the keying of described light source.
Wherein, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to Preset Time, time of reception described in the photosensitive switch conduction of described induction, so that described voltage conversion unit is exported described direct voltage to described switching tube unit in described time of reception, relay unit closure described in described switching tube unit controls, keep being connected between described driver element thereby control described extraneous AC power interface, light source startup is carried out luminous described in described drive unit drives; When the time of reception that receives described induced signal when described induction photosensitive switch is greater than described Preset Time, time of reception described in the photosensitive switch conduction of described induction, so that described voltage conversion unit is exported described direct voltage to described switching tube unit in described time of reception, described in described switching tube unit controls, relay unit disconnects, thereby disconnect being connected between described extraneous AC power interface and described driver element, so that described driver element stops driving described light source, described light source is closed and in extinguishing state.
Wherein, described switching tube unit comprises the first switching tube, second switch pipe, the 3rd switching tube, the first diode and electric capacity, described the first control end that opens the light pipe is connected to described induction photosensitive switch, the first end of described the first switching tube is connected to the anode of described the first diode, and be connected to the control end of the anodal and described second switch pipe of described electric capacity, the second end of described the first switching tube is connected to described voltage conversion unit, to receive described direct voltage, and be connected to described induction photosensitive switch, the first end ground connection of described second switch pipe, the second end of described second switch pipe is connected to the negative electrode of described the first diode, and be connected to the control end of described the 3rd switching tube, the first end ground connection of described the 3rd switching tube, the second end of described the 3rd switching tube is connected to described relay unit, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to described Preset Time, described the first switching tube conducting, described second switch pipe cut-off, thereby described the 3rd switching tube conducting makes described relay unit closure, when the time of reception that receives described induced signal when described induction photosensitive switch is greater than described Preset Time, described the first switching tube conducting, the conducting of described second switch pipe, thus described the 3rd switching tube cut-off disconnects described relay unit.
Wherein, the described first to the 3rd switching tube is NPN type triode, and the described first control end to the 3rd switching tube, first end and the second end are base stage, transmitter and the collector electrode of described triode.
Wherein, described switching tube unit also comprises the first resistance and the second resistance, the first end of described the first switching tube is connected to the control end of the anodal and described second switch pipe of described electric capacity by described the first resistance, the control end of described the 3rd switching tube is connected to the negative electrode of described the first diode by described the second resistance.
Wherein, described relay unit comprises the first relay and the second relay, the first end of the switch of described the first relay is connected to the negative electrode of described the first diode, the second end of the switch of described the first relay is connected to the second end of described the first switching tube, the coil of the coil of described the first relay and described the second relay is connected in series between the second end of described the first switching tube and the second end of described the 3rd switching tube, the switch of described the second relay is connected between described extraneous AC power interface and described driver element, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to described Preset Time, the switch of described first and second relay is all closed, when the time of reception that receives described induced signal when described induction photodiode is greater than described Preset Time, the switch of described first and second relay all disconnects.
Wherein, described relay unit also comprises the second diode and the 3rd diode, the negative electrode of described the second diode is connected to the second end of described the first switching tube, the anodic bonding of described the second diode is to the node between the coil of described first and second relay, the negative electrode of described the 3rd diode is connected to the anode of described the second diode, and the anodic bonding of described the 3rd diode is to the second end of described the 3rd switching tube.
Wherein, described voltage conversion unit comprises transformer and rectifier bridge, the primary coil of described transformer is connected to described extraneous AC power interface and receives described extraneous alternating voltage, the secondary coil of described transformer is connected to first and second input of described rectifier bridge, the first output head grounding of described rectifier bridge, the second output of described rectifier bridge is connected to the negative pole of described induction photodiode.
Wherein, described induction photosensitive switch is infrared photodiode, and the negative electrode of described infrared photodiode is connected to described voltage conversion unit, and the anodic bonding of described infrared photodiode is to described switching tube unit, and described induced signal is red line laser signal.
The present invention also provides a kind of light fixture, comprise extraneous AC power interface, light source, for driving the driver element of described light source and being connected to the above-mentioned control circuit between described extraneous AC power interface and described driver element, described control circuit is used for controlling described driver element and whether drives described light source.
The invention provides a kind of control circuit, comprise voltage conversion unit, induction photosensitive switch, switching tube unit and relay unit.The time of reception that described induction photosensitive switch basis receives the induced signal of extraneous transmitting apparatus generation is controlled described voltage conversion unit and in described time of reception, is exported described direct voltage to described switching tube unit, thereby make the break-make of relay unit described in described switching tube unit controls control being connected between described extraneous AC power interface and described driver element, thereby control the keying of described light source.Therefore, the present invention has realized without the light source switch that manually directly contacts light fixture and can realize the unlatching to light source or close.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in execution mode be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the block diagram of light fixture preferred embodiments of the present invention;
Fig. 2 is the circuit diagram of light fixture preferred embodiments of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
Refer to Fig. 1, the invention provides a kind of light fixture 100.Described light fixture 100 comprises extraneous AC power interface 10, light source 20, driver element 30 and control circuit 40.Described extraneous AC power interface 10 is connected to extraneous AC power 200, to receive alternating voltage.Described driver element 30 is connected to described light source 20, for driving described light source 20.Described control circuit 40 is connected to described extraneous interchange and between interface 10 and described driver element 30, controls described driver element 30 and whether drive described light source 20.
Described control circuit 40 comprises voltage conversion unit 41, induction photosensitive switch 42, switching tube unit 43 and relay unit 44.
Described voltage conversion unit 41 is connected to described extraneous AC power interface 10, to receive alternating voltage, and converts the alternating voltage receiving to direct voltage.
Described induction photosensitive switch 42 is connected to described voltage conversion unit 41.
Described switching tube unit 43 is connected to described induction photosensitive switch 42 and described voltage conversion unit 41.
Described in described relay unit 44 is connected to, open the light pipe unit 43, described driver element 30 and described extraneous AC power interface 10.
The time of reception that described induction photosensitive switch 42 bases receive the induced signal of extraneous transmitter generation is controlled described voltage conversion unit 41 and in described time of reception, is exported described direct voltage to described switching tube unit 43, thereby the break-make that makes described switching tube unit 43 control described relay unit 44 is controlled being connected between described extraneous AC power interface 10 and described driver element 30, thereby control the keying of described light source 20.
Wherein, when the time of reception that receives the induced signal that extraneous transmitter produces when described induction photosensitive switch 42 is less than or equal to Preset Time, time of reception described in described induction photosensitive switch 42 conductings, so that described voltage conversion unit 41 is exported described direct voltage to described switching tube unit 43 in described time of reception, described relay unit 44 closures are controlled in described switching tube unit 43, keep being connected between described driver element 30 thereby control described extraneous AC power interface 10.Described driver element 30 drives described light source 20 startups to carry out luminous.
When the time of reception that receives described induced signal when described induction photosensitive switch 42 is greater than described Preset Time, time of reception described in described induction photosensitive switch 42 conductings, so that described voltage conversion unit 41 is exported described direct voltage to described switching tube unit 43 in described time of reception, described switching tube unit 43 is controlled described relay unit 44 and is disconnected, thereby disconnect being connected between described extraneous AC power interface 10 and described driver element 30, so that described driver element 30 stops driving described light source 20.Described light source 20 is closed and in extinguishing state.
In the present embodiment, described induction photosensitive switch 42 is infrared photodiode.The negative electrode of described infrared photodiode is connected to described voltage conversion unit 41.The anodic bonding of described infrared photodiode is to described switching tube unit 43.Described induced signal is red line laser signal.
In other embodiments, described induction photosensitive switch 42 can be adjusted into other inductive switches according to actual needs.Described induced signal is corresponding signal.
Please continue to refer to Fig. 2, described voltage conversion unit 41 comprises transformer BT1 and rectifier bridge Z1.The primary coil of described transformer BT1 is connected to described extraneous alternating voltage interface 10, to receive described alternating voltage.The secondary coil of described transformer BT1 is connected to first and second input of described rectifier bridge Z1.Described transformer BT1 is used for described alternating voltage to carry out transformation, and by rectifier bridge Z1 described in the alternating voltage output valve after transformation.The first output of described rectifier bridge Z1 is connected to negative electrode and the relay unit 44 of described switching tube unit 43, described infrared photodiode, to export described direct voltage.The second output head grounding of described rectifier bridge Z1.
Described switching tube unit 43 comprises the first switching tube Q1, second switch pipe Q2, the 3rd switching tube Q3, the first resistance R 1, the second resistance R 2, the first diode D1 and capacitor C 1.The described first control end that opens the light pipe Q1 is connected to the anode of described infrared photodiode.The first end of described the first switching tube Q1 is connected to the anode of described the first diode D1, and is connected to the control end of the anodal and described second switch pipe Q2 of described capacitor C 1 by described the first resistance R 1.The second end of described the first switching tube Q1 is connected to the negative electrode of described infrared photodiode, and is connected to the first output of described rectifier Z1.The first end ground connection of described second switch pipe Q2.The second end of described second switch pipe Q2 is connected to the negative electrode of described the first diode D1 by described the second resistance R 2, and is connected to the control end of described the 3rd switching tube Q3.The first end ground connection of described the 3rd switching tube Q3.The second end of described the 3rd switching tube Q3 is connected to described relay unit 44.
Described relay unit 44 comprises the first relay K 1, the second relay K 2, the second diode D2 and the 3rd diode D3.The first end of the switch of described the first relay K 1 is connected to the negative electrode of described the first diode D1.The second end of the switch of described the first relay K 1 is connected to the second end of described the first switching tube Q1.The coil of the coil of described the first relay K 1 and described the second relay K 2 is connected between the second end of described the first switching tube Q1 and the second end of described the 3rd switching tube Q3.The switch of described the second relay K 2 is connected between described extraneous AC power interface 10 and described driver element 30.The negative electrode of described the second diode D2 is connected to the second end of described the first switching tube Q1.The anodic bonding of described the second diode D2 is to the node between the coil of described first and second relay K 1 and K2.The negative electrode of described the 3rd diode D3 is connected to the anode of described the second diode D2.The anodic bonding of described the 3rd diode D3 is to the second end of described the 3rd switching tube Q3.
In the present embodiment, described Preset Time is when charging to described capacitor C 1, and the voltage of described capacitor C 1 reaches the required charging interval of conducting voltage of described second switch pipe Q2.In the time that the time that described capacitor C 1 is charged is less than or equal to described Preset Time, the voltage of described capacitor C 1 is less than or equal to the conducting voltage of described second switch pipe Q2.In the time that the time that described capacitor C 1 is charged is greater than described Preset Time, the voltage of described capacitor C 1 is greater than the conducting voltage of described second switch pipe Q2.
When the time of reception that receives induced signal when described infrared photodiode is less than or equal to described Preset Time, described the first switching tube Q1 is switched on described time of reception.Described direct voltage is to the described capacitor C 1 described time of reception that charges.Because described time of reception is less than or equal to described Preset Time, the voltage of described capacitor C 1 is less than or equal to the conducting voltage of described second switch pipe Q2, and described second switch pipe Q2 cut-off, makes described the 3rd switching tube Q3 conducting.The coil of described first and second relay K 1 and K2 all has electric current to flow through, and described first and second relay K 1 and K2 are all closed, makes described the 3rd switching tube Q3 keep conducting, described the first relay K 1 self-locking.The described extraneous interface 10 that exchanges keeps being connected between described driver element 30, and described light source 20 starts and luminous.
When the time of reception that receives described induced signal when described infrared photodiode is greater than described Preset Time, described the first switching tube Q1 is switched on described time of reception.Described direct voltage is to the described capacitor C 1 described time of reception that charges.Because described time of reception is greater than described Preset Time, the voltage of described capacitor C 1 is greater than the conducting voltage of described second switch pipe Q2,, described second switch pipe Q2 conducting, makes described the 3rd switching tube Q3 cut-off.The coil of described first and second relay K 1 and K2 does not have electric current to flow through, described first and second relay K 1 and K2 all disconnect, described the 3rd switching tube Q3 is disconnected, thereby disconnect described extraneous being connected between interface 10 and described driver element 30 that exchange, described light source 20 is closed and in extinguishing state.
In the present embodiment, the described first to the 3rd switching tube Q1-Q3 is NPN type triode.The described first control end to the 3rd switching tube Q1-Q3, first end and the second end are base stage, transmitter and the collector electrode of described triode.Described the first resistance R 1 and the second resistance R 2 are all metering functions.Described the second diode D2 and the 3rd diode D3 are all afterflow effects.
In other embodiments, the described first to the 3rd switching tube Q1-Q3 can be also the transistor of other types.Described first and second resistance R 2 and R3 can omit.Described second and third diode D2 and D3 can omit.
In this preferred embodiments, described light fixture 100 comprises described control circuit 40.Described control circuit 40 comprises voltage conversion unit 41, induction photodiode 42, switching tube unit 43 and relay unit 44.When the time of reception that receives described induced signal when described induction photodiode 42 is less than or equal to described Preset Time, time of reception described in described induction photosensitive switch 42 conductings, so that described voltage conversion unit 41 is exported described direct voltage to described switching tube unit 43 in described time of reception, described relay unit 44 closures are controlled in described switching tube unit 43, thereby keep described extraneous AC power interface 10 to be connected to described driver element 30.Described driver element 30 drives described light source 20 to carry out luminous.When the time of reception that receives described induced signal when described induction photosensitive switch 42 is greater than described Preset Time, time of reception described in described induction photodiode 42 conductings, so that described voltage conversion unit 41 is exported described direct voltage to described switching tube unit 43 in described time of reception, described switching tube unit 43 is controlled described relay unit 44 and is disconnected, thereby disconnect being connected between described extraneous AC power interface 10 and described driver element 30, so that described driver element 30 stops driving described light source 20.Described light source 20 is in extinguishing state.Therefore, the present invention has realized without the light source switch that manually directly contacts light fixture 100 and can realize the unlatching to light source 20 or close.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a control circuit, controls described driver element between the extraneous AC power interface of light fixture and the driver element of lamp light source and whether drives described light source for being connected to, and described control circuit comprises:
Voltage conversion unit, is connected to described extraneous AC power interface, to receive alternating voltage, and converts the alternating voltage receiving to direct voltage;
Induction photosensitive switch, is connected to described voltage conversion unit;
Switching tube unit, is connected to described induction photosensitive switch and described voltage conversion unit;
Relay unit, the pipe unit that opens the light described in being connected to, described driver element and described extraneous AC power interface,
Wherein, the time of reception that described induction photosensitive switch basis receives the induced signal of extraneous transmitter generation is controlled described voltage conversion unit and in described time of reception, is exported described direct voltage to described switching tube unit, thereby make the break-make of relay unit described in described switching tube unit controls control being connected between described extraneous AC power interface and described driver element, thereby control the keying of described light source.
2. control circuit according to claim 1, it is characterized in that, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to Preset Time, time of reception described in the photosensitive switch conduction of described induction, so that described voltage conversion unit is exported described direct voltage to described switching tube unit in described time of reception, relay unit closure described in described switching tube unit controls, keep being connected between described driver element thereby control described extraneous AC power interface, light source startup is carried out luminous described in described drive unit drives; When the time of reception that receives described induced signal when described induction photosensitive switch is greater than described Preset Time, time of reception described in the photosensitive switch conduction of described induction, so that described voltage conversion unit is exported described direct voltage to described switching tube unit in described time of reception, described in described switching tube unit controls, relay unit disconnects, thereby disconnect being connected between described extraneous AC power interface and described driver element, so that described driver element stops driving described light source, described light source is closed and in extinguishing state.
3. control circuit according to claim 2, it is characterized in that, described switching tube unit comprises the first switching tube, second switch pipe, the 3rd switching tube, the first diode and electric capacity, described the first control end that opens the light pipe is connected to described induction photosensitive switch, the first end of described the first switching tube is connected to the anode of described the first diode, and be connected to the control end of the anodal and described second switch pipe of described electric capacity, the second end of described the first switching tube is connected to described voltage conversion unit, to receive described direct voltage, and be connected to described induction photosensitive switch, the first end ground connection of described second switch pipe, the second end of described second switch pipe is connected to the negative electrode of described the first diode, and be connected to the control end of described the 3rd switching tube, the first end ground connection of described the 3rd switching tube, the second end of described the 3rd switching tube is connected to described relay unit, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to described Preset Time, described the first switching tube conducting, described second switch pipe cut-off, thereby described the 3rd switching tube conducting makes described relay unit closure, when the time of reception that receives described induced signal when described induction photosensitive switch is greater than described Preset Time, described the first switching tube conducting, the conducting of described second switch pipe, thus described the 3rd switching tube cut-off disconnects described relay unit.
4. control circuit according to claim 3, is characterized in that, the described first to the 3rd switching tube is NPN type triode, and the described first control end to the 3rd switching tube, first end and the second end are base stage, transmitter and the collector electrode of described triode.
5. control circuit according to claim 3, it is characterized in that, described switching tube unit also comprises the first resistance and the second resistance, the first end of described the first switching tube is connected to the control end of the anodal and described second switch pipe of described electric capacity by described the first resistance, the control end of described the 3rd switching tube is connected to the negative electrode of described the first diode by described the second resistance.
6. control circuit according to claim 5, it is characterized in that, described relay unit comprises the first relay and the second relay, the first end of the switch of described the first relay is connected to the negative electrode of described the first diode, the second end of the switch of described the first relay is connected to the second end of described the first switching tube, the coil of the coil of described the first relay and described the second relay is connected in series between the second end of described the first switching tube and the second end of described the 3rd switching tube, the switch of described the second relay is connected between described extraneous AC power interface and described driver element, when the time of reception that receives described induced signal when described induction photosensitive switch is less than or equal to described Preset Time, the switch of described first and second relay is all closed, when the time of reception that receives described induced signal when described induction photodiode is greater than described Preset Time, the switch of described first and second relay all disconnects.
7. control circuit according to claim 6, it is characterized in that, described relay unit also comprises the second diode and the 3rd diode, the negative electrode of described the second diode is connected to the second end of described the first switching tube, the anodic bonding of described the second diode is to the node between the coil of described first and second relay, the negative electrode of described the 3rd diode is connected to the anode of described the second diode, and the anodic bonding of described the 3rd diode is to the second end of described the 3rd switching tube.
8. control circuit according to claim 7, it is characterized in that, described voltage conversion unit comprises transformer and rectifier bridge, the primary coil of described transformer is connected to described extraneous AC power interface and receives described extraneous alternating voltage, the secondary coil of described transformer is connected to first and second input of described rectifier bridge, the first output head grounding of described rectifier bridge, the second output of described rectifier bridge is connected to the negative pole of described induction photodiode.
9. control circuit according to claim 1, it is characterized in that, described induction photosensitive switch is infrared photodiode, the negative electrode of described infrared photodiode is connected to described voltage conversion unit, the anodic bonding of described infrared photodiode is to described switching tube unit, and described induced signal is red line laser signal.
10. a light fixture, comprise extraneous AC power interface, light source, for driving the driver element of described light source and being connected to the control circuit as described in claim 1-9 item any one between described extraneous AC power interface and described driver element, described control circuit is used for controlling described driver element and whether drives described light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464016.9A CN103826346B (en) | 2012-11-16 | 2012-11-16 | Lamps and lanterns and its control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464016.9A CN103826346B (en) | 2012-11-16 | 2012-11-16 | Lamps and lanterns and its control circuit |
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| Publication Number | Publication Date |
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| CN103826346A true CN103826346A (en) | 2014-05-28 |
| CN103826346B CN103826346B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210464016.9A Active CN103826346B (en) | 2012-11-16 | 2012-11-16 | Lamps and lanterns and its control circuit |
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| CN107197573A (en) * | 2017-05-31 | 2017-09-22 | Tcl-罗格朗国际电工（惠州）有限公司 | Inductive switch control device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103826346B (en) | 2018-04-17 |
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