CN104427681A - Lamp time-delay circuit - Google Patents
Lamp time-delay circuit Download PDFInfo
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- CN104427681A CN104427681A CN201310369856.1A CN201310369856A CN104427681A CN 104427681 A CN104427681 A CN 104427681A CN 201310369856 A CN201310369856 A CN 201310369856A CN 104427681 A CN104427681 A CN 104427681A
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- light fixture
- relay
- negative pole
- rectifier diode
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a lamp time-delay circuit, including a recoverable switch S1, a normally open contact K-2 of a relay, a lamp LAMP, a transformer T1, rectifier diodes D1 to D4, a filter capacitor C1, a photoresistor RP, a delay control circuit, a normally closed contact K-1 of the relay, a diode D5, and the relay K. When light is relatively strong, the resistance of the photoresistor is very large, which is equivalent to an open circuit, no matter voltage is input or not, the delay control circuit does not work, when light is relatively dark, the resistance of the photoresistor decreases, which is equivalent to a short circuit, when voltage is input, the delay control circuit works and outputs high potential, the relay is powered up to work, the normally open contact of the relay is actuated, so that the lamp continues to work, after the delay control circuit works for a period of time, output thereof changes from high potential to low potential, the relay stops working, the normally open contact of the relay is disconnected, and the lamp is turned off. By implementation of the lamp time-delay circuit provided by the embodiment of the invention, the illumination time of the lamp can be prolonged, and the lamp can be guaranteed to continue to work after a toggle button of the lamp is bounced off.
Description
Technical field
The present invention relates to electronic circuit technology field, be specifically related to a kind of light fixture delay circuit.
Background technology
Walk inside the corridor of pitch-dark or dark very inconvenient, therefore, usually can inside corridor mounted lamp, but be not that someone walks about always inside corridor, if install the lantern festival very consume electric power often opened.Therefore, in order to saves energy can install a kind of controllable light fixture usually inside corridor, made to open light fixture by button during people, and light fixture can automatic distinguishing after people walks.But the lighting hours of existing this light fixture is very short, to such an extent as to people does not also leave, light fixture just extinguishes, and brings much inconvenience to people.
Summary of the invention
The embodiment of the invention discloses a kind of light fixture delay circuit, for extending the lighting hours of light fixture, can ensure that light fixture works on after the shift knob of light fixture flicks.
A kind of light fixture delay circuit, comprising:
Switch S 1, relay normally open contact K-2, light fixture LAMP, transformer T1, rectifier diode D1 ~ D4, filter capacitor C1, photosensitive resistor rp, delay control circuit, relay normally-closed contact K-1, diode D5, relay K can be recovered, wherein:
Described switch S 1 one end of recovering connects described light fixture LAMP one end, the described light fixture LAMP other end recovers between switch S 1 other end for being connected input voltage with described, described switch S 1 of recovering is connected in parallel described relay normally open contact K-2, described light fixture LAMP one end connects described transformer T1 primary winding one end, the described transformer T1 primary winding other end connects the described light fixture LAMP other end, described transformer T1 auxiliary winding one end connects the positive pole of described rectifier diode D1, the negative pole of described rectifier diode D1 connects the negative pole of described rectifier diode D2, the positive pole of described rectifier diode D2 connects the negative pole of described rectifier diode D3, the positive pole of described rectifier diode D3 connects the positive pole of described rectifier diode D4, the negative pole of described rectifier diode D4 connects the positive pole of described rectifier diode D1, the positive pole of described rectifier diode D2 connects the described transformer T1 auxiliary winding other end, the negative pole of described rectifier diode D1 connects the positive pole of described filter capacitor C1, the negative pole of described filter capacitor C1 connects the positive pole of described rectifier diode D3, the positive pole of described filter capacitor C1 connects described photosensitive resistor rp one end, the described photosensitive resistor rp other end connects the input A1 of described delay control circuit, the input A2 of described delay control circuit connects described relay normally-closed contact K-1 one end, the described relay normally-closed contact K-1 other end connects the negative pole of described filter capacitor C1, the output terminals A 3 of described delay control circuit connects the negative pole of described filter capacitor C1, the output terminals A 4 of described delay control circuit connects the negative pole of described diode D5, the positive pole of described diode D5 connects the negative pole of described filter capacitor C1, described diode D5 is connected in parallel described relay K.
Wherein, described delay control circuit comprises:
Divider resistance R1 ~ R2, current-limiting resistance R3, electric capacity C2, timer 555, electric capacity C3, wherein:
Described divider resistance R1 one end connects the described photosensitive resistor rp other end, the described divider resistance R1 other end connects described divider resistance R2 one end, described divider resistance R2 one end connects described relay normally-closed contact K-1 one end, the described divider resistance R2 other end connects the described relay normally-closed contact K-1 other end, described divider resistance R1 one end connects described current-limiting resistance R3 one end, the described current-limiting resistance R3 other end connects the positive pole of described electric capacity C2, the negative pole of described electric capacity C2 connects the described divider resistance R2 other end, described current-limiting resistance R3 one end connects reset terminal 4 and the power end 8 of described timer 555, the described current-limiting resistance R3 other end connects thresholding end 6 and the discharge end 7 of described timer 555, the trigger end 2 of described timer 555 connects the described divider resistance R1 other end, the ground end 1 of described timer 555 connects the negative pole of described electric capacity C2, the control voltage end 5 of described timer 555 connects described electric capacity C3 one end, the described electric capacity C3 other end connects the negative pole of described electric capacity C2, the output 3 of described timer 555 connects the negative pole of described diode D5.
Alternatively, the model of described rectifier diode D1 ~ D4 is IN4007.
Alternatively, the span of described filter capacitor C1 is 200 μ F-500 μ F.
Alternatively, the model of described photosensitive resistor rp is LXD25537.
Alternatively, 2*R2 < R1.
Alternatively, described input voltage is the alternating current of 220.
Alternatively, the model of described relay K is HK4100F-DC3V.
In the embodiment of the present invention, when press can recover switch S 1 time, light fixture normally works, and because switch is recoverable, can automatically spring open after being pressed, if do not have subsequent conditioning circuit, when recovering after switch S 1 flicks, light fixture will extinguish immediately, in subsequent conditioning circuit, when light is stronger, the resistance of photo resistance is very large, be equivalent to open circuit, no matter do not work with or without input voltage delay control circuit, when dark, the resistance of photo resistance reduces, be equivalent to short circuit, when having input voltage, delay control circuit works, export high potential, relay work, the normally opened contact adhesive of relay makes light fixture work on, after delay control circuit work a period of time, its output will become electronegative potential from high potential, relay quits work, the normally opened contact of relay is opened, light fixture extinguishes, therefore, the lighting hours of light fixture can be extended by the operating state of delay control circuit control relay.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of light fixture delay circuit disclosed by the invention;
Fig. 2 is the structure chart of another kind of light fixture delay circuit disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of method, system and equipment is provided, for reducing complexity and the burden of access device in the embodiment of the present invention.Below be described in detail respectively.
Refer to Fig. 1, Fig. 1 is a kind of light fixture delay circuit disclosed in the embodiment of the present invention.As shown in Figure 1, this light fixture delay circuit can comprise:
Switch S 1, relay normally open contact K-2, light fixture LAMP, transformer T1, rectifier diode D1 ~ D4, filter capacitor C1, photosensitive resistor rp, delay control circuit, relay normally-closed contact K-1, diode D5, relay K can be recovered, wherein:
Switch S 1 one end can be recovered and connect light fixture LAMP one end, the light fixture LAMP other end with can recover between switch S 1 other end for being connected input voltage, switch S 1 can be recovered and be connected in parallel relay normally open contact K-2, connection transformer T1 primary winding one end, light fixture LAMP one end, the transformer T1 primary winding other end connects the light fixture LAMP other end, transformer T1 auxiliary winding one end connects the positive pole of rectifier diode D1, the negative pole of rectifier diode D1 connects the negative pole of rectifier diode D2, the positive pole of rectifier diode D2 connects the negative pole of rectifier diode D3, the positive pole of rectifier diode D3 connects the positive pole of rectifier diode D4, the negative pole of rectifier diode D4 connects the positive pole of rectifier diode D1, the positive pole connection transformer T1 auxiliary winding other end of rectifier diode D2, the negative pole of rectifier diode D1 connects the positive pole of filter capacitor C1, the negative pole of filter capacitor C1 connects the positive pole of rectifier diode D3, the positive pole of filter capacitor C1 connects photosensitive resistor rp one end, the photosensitive resistor rp other end connects the input A1 of delay control circuit, the input A2 of delay control circuit connects relay normally-closed contact K-1 one end, the relay normally-closed contact K-1 other end connects the negative pole of filter capacitor C1, the output terminals A 3 of delay control circuit connects the negative pole of filter capacitor C1, the output terminals A 4 of delay control circuit connects the negative pole of diode D5, the positive pole of diode D5 connects the negative pole of filter capacitor C1, diode D5 is connected in parallel relay K.
Alternatively, the model of rectifier diode D1 ~ D4 is IN4007.
Alternatively, the span of filter capacitor C1 is 200 μ F-500 μ F.
Alternatively, the model of photosensitive resistor rp is LXD25537.
Alternatively, 2*R2 < R1.
Alternatively, input voltage is the alternating current of 220.
Alternatively, the model of relay K is HK4100F-DC3V.
Wherein, the operation principle of the light fixture delay circuit shown in Fig. 1 is: S1 for switch can be recovered, K-2 is relay normally open contact, LAMP is light fixture, T1 is transformer, D1 ~ D4 is rectifier diode, C1 is filter capacitor, RP is photo resistance, K-1 is relay normally-closed contact, D5 is diode, K is relay, when press can recover switch S 1 time, input voltage provides voltage to light fixture LAMP, and LAMP normally works after obtaining voltage, but because switch is recoverable, can automatically spring open after being pressed, if there is no subsequent conditioning circuit, when recovering after switch S 1 flicks, light fixture LAMP will extinguish immediately, in subsequent conditioning circuit, when light is stronger, the resistance of photosensitive resistor rp is very large, be equivalent to open circuit, no matter do not work with or without input voltage delay control circuit, when dark, the resistance of photosensitive resistor rp reduces, be equivalent to short circuit, delays time to control circuit working when having an input voltage, its output terminals A 4 exports high potential, relay K obtains electric work, relay normally open contact K-2 adhesive, relay normally-closed contact K-1 disconnects, relay normally open contact K-2 adhesive makes to recover switch S 1 and flicks rear input voltage and can continue to provide voltage to ensure light fixture to light fixture LAMP works on, after delay control circuit work a period of time, the voltage of its output terminals A 4 can become electronegative potential from high potential, relay K quits work, relay normally open contact K-2 disconnects, light fixture extinguishes, delay control circuit operating time length is relevant with its inner parameter, wherein, when relay K becomes cut-off from work, reverse current will be had to flow through relay K, diode D5 conducting when there being reverse current to flow through relay K, the coil of relay K is avoided to damage because reverse current is excessive.
Above, be exactly scheme and the principles and methods of the embodiment of the present invention 1, summing up is exactly when dark, can recover switch flick after delay control circuit to extend the lighting hours of light fixture by changing the operating state of relay.
In the embodiment of the present invention, can also increase by one can recover switch, can recover switch be arranged on corridor two ends respectively by two, conveniently can open light fixture at corridor two ends.
Light fixture delay circuit disclosed in the embodiment of the present invention, for extending the lighting hours of light fixture, can ensure that light fixture works on after the shift knob of light fixture flicks.
Refer to Fig. 2, Fig. 2 is another kind of light fixture delay circuit disclosed in the embodiment of the present invention.Wherein, light fixture delay circuit shown in Fig. 2 is optimized the light fixture delay circuit shown in Fig. 1 to obtain, and compared with the light fixture delay circuit shown in Fig. 1, the light fixture delay circuit shown in Fig. 2 can also comprise delay control circuit, wherein, this delay control circuit can comprise:
Divider resistance R1 ~ R2, current-limiting resistance R3, electric capacity C2, timer 555, electric capacity C3, wherein:
Divider resistance R1 one end connects the photosensitive resistor rp other end, the divider resistance R1 other end connects divider resistance R2 one end, divider resistance R2 one end connects relay normally-closed contact K-1 one end, the divider resistance R2 other end connects the relay normally-closed contact K-1 other end, divider resistance R1 one end connects current-limiting resistance R3 one end, the current-limiting resistance R3 other end connects the positive pole of electric capacity C2, the negative pole of electric capacity C2 connects the divider resistance R2 other end, current-limiting resistance R3 one end connects reset terminal 4 and the power end 8 of timer 555, the current-limiting resistance R3 other end connects thresholding end 6 and the discharge end 7 of timer 555, the trigger end 2 of timer 555 connects the divider resistance R1 other end, the ground end 1 of timer 555 connects the negative pole of electric capacity C2, the control voltage end 5 of timer 555 connects electric capacity C3 one end, the electric capacity C3 other end connects the negative pole of electric capacity C2, the output 3 of timer 555 connects the negative pole of diode D5.
Alternatively, the model of rectifier diode D1 ~ D4 is IN4007.
Alternatively, the span of filter capacitor C1 is 200 μ F-500 μ F.
Alternatively, the model of photosensitive resistor rp is LXD25537.
Alternatively, 2*R2 < R1.
Alternatively, input voltage is the alternating current of 220.
Alternatively, the model of relay K is HK4100F-DC3V.
Wherein, the operation principle of the delay control circuit shown in Fig. 2 is: S1 for switch can be recovered, K-2 is relay normally open contact, LAMP is light fixture, T1 is transformer, D1 ~ D4 is rectifier diode, C1 is filter capacitor, RP is photo resistance, K-1 is relay normally-closed contact, D5 is diode, K is relay, R1 ~ R2 is divider resistance, R3 is current-limiting resistance, C2 is electric capacity, 555 be timer, C3 is electric capacity, when press can recover switch S 1 time, input voltage provides voltage to light fixture LAMP, and LAMP normally works after obtaining voltage, but because switch is recoverable, can automatically spring open after being pressed, if there is no subsequent conditioning circuit, when recovering after switch S 1 flicks, light fixture LAMP will extinguish immediately, in subsequent conditioning circuit, when light is stronger, the resistance of photosensitive resistor rp is very large, be equivalent to open circuit, no matter do not work with or without input voltage delay control circuit, when dark, the resistance of photosensitive resistor rp reduces, be equivalent to short circuit, when having input voltage, the trigger end 2 of timer 555 drags down by relay normally-closed contact K-1, timer 555 triggering work, the output 3 of timer 555 exports high potential, relay K obtains electric work, relay normally-closed contact K-1 disconnects, relay normally open contact K-2 adhesive, normally opened contact K-2 adhesive due to relay makes to recover switch S 1 and flicks rear input voltage and can continue to provide voltage to ensure light fixture to light fixture LAMP works on, power supply is charged to electric capacity C2 by current-limiting resistance R3 simultaneously, when the current potential of electric capacity C2 reaches certain value, the current potential of the thresholding end 6 of timer 555 is uprised, timer 555 overturns, the output 3 of timer 555 will export electronegative potential, relay K quits work, the normally opened contact K-2 of relay disconnects, light fixture extinguishes.The lamp lighting time can realize by regulating the size of current-limiting resistance R3 and electric capacity C2, wherein, when relay K becomes cut-off from work, reverse current will be had to flow through relay K, and diode D5 conducting when there being reverse current to flow through relay K, avoid the coil of relay K to damage because reverse current is excessive.
Above, be exactly scheme and the principles and methods of the embodiment of the present invention 2, summing up is exactly when dark, can recover the lighting hours extending light fixture after switch flicks according to the operating state of the output potential control relay of timer 555.
In the embodiment of the present invention, can also increase by one can recover switch, can recover switch be arranged on corridor two ends respectively by two, conveniently can open light fixture at corridor two ends.
Light fixture delay circuit disclosed in the embodiment of the present invention, for extending the lighting hours of light fixture, can ensure that light fixture works on after the shift knob of light fixture flicks.
Above light fixture delay circuit disclosed in the embodiment of the present invention is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a light fixture delay circuit, is characterized in that, comprising:
Switch S 1, relay normally open contact K-2, light fixture LAMP, transformer T1, rectifier diode D1 ~ D4, filter capacitor C1, photosensitive resistor rp, delay control circuit, relay normally-closed contact K-1, diode D5, relay K can be recovered, wherein:
Described switch S 1 one end of recovering connects described light fixture LAMP one end, the described light fixture LAMP other end recovers between switch S 1 other end for being connected input voltage with described, described switch S 1 of recovering is connected in parallel described relay normally open contact K-2, described light fixture LAMP one end connects described transformer T1 primary winding one end, the described transformer T1 primary winding other end connects the described light fixture LAMP other end, described transformer T1 auxiliary winding one end connects the positive pole of described rectifier diode D1, the negative pole of described rectifier diode D1 connects the negative pole of described rectifier diode D2, the positive pole of described rectifier diode D2 connects the negative pole of described rectifier diode D3, the positive pole of described rectifier diode D3 connects the positive pole of described rectifier diode D4, the negative pole of described rectifier diode D4 connects the positive pole of described rectifier diode D1, the positive pole of described rectifier diode D2 connects the described transformer T1 auxiliary winding other end, the negative pole of described rectifier diode D1 connects the positive pole of described filter capacitor C1, the negative pole of described filter capacitor C1 connects the positive pole of described rectifier diode D3, the positive pole of described filter capacitor C1 connects described photosensitive resistor rp one end, the described photosensitive resistor rp other end connects the input A1 of described delay control circuit, the input A2 of described delay control circuit connects described relay normally-closed contact K-1 one end, the described relay normally-closed contact K-1 other end connects the negative pole of described filter capacitor C1, the output terminals A 3 of described delay control circuit connects the negative pole of described filter capacitor C1, the output terminals A 4 of described delay control circuit connects the negative pole of described diode D5, the positive pole of described diode D5 connects the negative pole of described filter capacitor C1, described diode D5 is connected in parallel described relay K.
2. light fixture delay circuit as claimed in claim 1, it is characterized in that, described delay control circuit comprises:
Divider resistance R1 ~ R2, current-limiting resistance R3, electric capacity C2, timer 555, electric capacity C3, wherein:
Described divider resistance R1 one end connects the described photosensitive resistor rp other end, the described divider resistance R1 other end connects described divider resistance R2 one end, described divider resistance R2 one end connects described relay normally-closed contact K-1 one end, the described divider resistance R2 other end connects the described relay normally-closed contact K-1 other end, described divider resistance R1 one end connects described current-limiting resistance R3 one end, the described current-limiting resistance R3 other end connects the positive pole of described electric capacity C2, the negative pole of described electric capacity C2 connects the described divider resistance R2 other end, described current-limiting resistance R3 one end connects reset terminal 4 and the power end 8 of described timer 555, the described current-limiting resistance R3 other end connects thresholding end 6 and the discharge end 7 of described timer 555, the trigger end 2 of described timer 555 connects the described divider resistance R1 other end, the ground end 1 of described timer 555 connects the negative pole of described electric capacity C2, the control voltage end 5 of described timer 555 connects described electric capacity C3 one end, the described electric capacity C3 other end connects the negative pole of described electric capacity C2, the output 3 of described timer 555 connects the negative pole of described diode D5.
3. light fixture delay circuit as claimed in claim 1, it is characterized in that, the model of described rectifier diode D1 ~ D4 is IN4007.
4. light fixture delay circuit as claimed in claim 1, it is characterized in that, the span of described filter capacitor C1 is 200 μ F-500 μ F.
5. light fixture delay circuit as claimed in claim 1, it is characterized in that, the model of described photosensitive resistor rp is LXD25537.
6. light fixture delay circuit as claimed in claim 1, is characterized in that, 2*R2 < R1.
7. light fixture delay circuit as claimed in claim 1, it is characterized in that, described input voltage is the alternating current of 220.
8. the light fixture delay circuit as described in any one of claim 1-7, is characterized in that, the model of described relay K is HK4100F-DC3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369856.1A CN104427681A (en) | 2013-08-22 | 2013-08-22 | Lamp time-delay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369856.1A CN104427681A (en) | 2013-08-22 | 2013-08-22 | Lamp time-delay circuit |
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| Publication Number | Publication Date |
|---|---|
| CN104427681A true CN104427681A (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310369856.1A Pending CN104427681A (en) | 2013-08-22 | 2013-08-22 | Lamp time-delay circuit |
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| CN (1) | CN104427681A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068570A (en) * | 1989-01-26 | 1991-11-26 | Koito Manufacturing Co., Ltd. | Lamp lighting circuit with an overload protection capability |
| CN2126497U (en) * | 1992-02-10 | 1992-12-30 | 钱功扬 | Corridor lighting lamp controllor |
| CN2177287Y (en) * | 1993-08-04 | 1994-09-14 | 赵培成 | Delay switch |
| CN202663624U (en) * | 2012-07-24 | 2013-01-09 | 赵跃斌 | Universal acousto-optic control circuit |
-
2013
- 2013-08-22 CN CN201310369856.1A patent/CN104427681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5068570A (en) * | 1989-01-26 | 1991-11-26 | Koito Manufacturing Co., Ltd. | Lamp lighting circuit with an overload protection capability |
| CN2126497U (en) * | 1992-02-10 | 1992-12-30 | 钱功扬 | Corridor lighting lamp controllor |
| CN2177287Y (en) * | 1993-08-04 | 1994-09-14 | 赵培成 | Delay switch |
| CN202663624U (en) * | 2012-07-24 | 2013-01-09 | 赵跃斌 | Universal acousto-optic control circuit |
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Application publication date: 20150318 |
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