CN108777908A - Delay fades off night-light - Google Patents
Delay fades off night-light Download PDFInfo
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- CN108777908A CN108777908A CN201810673158.3A CN201810673158A CN108777908A CN 108777908 A CN108777908 A CN 108777908A CN 201810673158 A CN201810673158 A CN 201810673158A CN 108777908 A CN108777908 A CN 108777908A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of delays to fade off night-light, and feature includes：220V AC powers, 9V regulated power supplies, partial pressure charging circuit, charge and discharge and delay fade off circuit, incandescent lamp bulb driving circuit.The typical working method of common delay illuminating lamp：Headlamp extinguishes after lighting and working a period of time, otherwise headlamp is lighted or is extinguished, between the lighting and extinguish of headlamp brightness there is no state excessive.Especially in night pitch-dark room, headlamp powers off extinguishing suddenly, whatever can't see because eye pupil reduces moment, such case not only has a great impact to the eyes of people, but also is unfavorable for going to sleep peacefully after going to the toilet.Delay of the present invention fades off night-light, it has soft light, and lamplight brightness was dimmed at leisure before this, then extinguished at leisure again, and the process that fades off lasts about greatly 46 seconds, it is very suitable for the psychological need of people's eyes.
Description
Technical field
It is to fade off night-light about a kind of delay the invention belongs to Electric automatic control and lighting technical field.
Background technology
It is well-known：Common headlamp is turned on light moment at night, and too strong light makes the eyes in dark be easy
By larger stimulation, this has discomfort more to night toilet user, and it should be primary choosing folding that night, which goes to the toilet using night-light,.In dark room
Between in, it can be that the person of getting up in the night to urinate leads the way to have faint night-light illumination, and midnight, which gets up to go to the toilet, keeps you very convenient.
The typical working method of common delay illuminating lamp：Headlamp extinguishes after lighting and working a period of time, illumination
Or lamp is lighted or is extinguished, between the lighting and extinguish of headlamp brightness there is no state excessive.Room especially pitch-dark at night
Between in, headlamp powers off extinguishing suddenly, because eye pupil reduce moment whatever can't see, such case is not only to the eyes of people
Have a great impact, and is unfavorable for going to sleep peacefully after going to the toilet.Delay of the present invention fades off night-light, it has soft light
Line, lamplight brightness was dimmed at leisure before this, then extinguished at leisure again, and the process that fades off lasts about greatly 46 seconds, it is very suitable
Close the psychological need of people's eyes.
Delay of the present invention described further below fades off night-light involved necessary, key skill in implementation process
Art content.
Invention content
Goal of the invention and advantageous effect：The typical working method of common delay illuminating lamp：Headlamp is being lighted and is being worked
Extinguish after a period of time, otherwise headlamp is lighted or is extinguished, between the lighting and extinguish of headlamp brightness there is no state mistake
Degree.Especially in night pitch-dark room, headlamp powers off extinguishing suddenly, whatever can't see because eye pupil reduces moment,
Such case not only has a great impact to the eyes of people, but also is unfavorable for going to sleep peacefully after going to the toilet.Delay of the present invention
Night-light is faded off, it has soft light, and lamplight brightness was dimmed at leisure before this, then extinguished at leisure again, faded off process
46 seconds are lasted about greatly, it is very suitable for the psychological need of people's eyes.
Circuit operation principle：It is touched when delay fades off the starting switch AN in night-light circuit, by resistance R1 and resistance
While for electrolytic capacitor C1 quick charges, also the grid for N-channel field-effect tube VT1 carries the partial pressure charging circuit of R2 compositions
For bias voltage, N-channel field-effect tube VT1 is made to be connected rapidly, is connected to make bidirectional triode thyristor BCR obtain trigger voltage,
So that incandescent lamp bulb HL obtains electric be lit.
After starting switch AN is disconnected, because the grid of N-channel field-effect tube VT1 is connected to high resistance measurement R3 (auxiliary charging)
With electrolytic capacitor C1, electrolytic capacitor C1 electric discharge need after a period of time, cause N-channel field-effect tube VT1 from be connected gradually to
Half conducting state is excessive, to make the angle of flow of bidirectional triode thyristor BCR change, incandescent lamp bulb HL is made to be powered shape by full voltage
State becomes decompression and arrives low-voltage power supply state again, and incandescent lamp bulb HL will be gradually dimmed until fully powered-off extinguishing.
Technical solution：Delay fades off night-light, it includes 220V AC powers, 9V regulated power supplies, partial pressure charging circuit, charge and discharge
Electricity and delay fade off circuit, incandescent lamp bulb driving circuit, it is characterised in that：
Divide charging circuit：It is made of starting switch AN, resistance R1, resistance R2 and switching diode D1, two pole of switch
One end of one end and resistance R2 of the positive connecting resistance R1 of pipe D1, the other end of resistance R1 connect circuit anode by starting switch AN
The cathode of another termination circuit of VCC, resistance R2 ground GND, switching diode D1 connect charge and discharge and delay fades off circuit；
Charge and discharge and delay fade off circuit：It is by resistance R3, electrolytic capacitor C1, N-channel field-effect tube VT1 and resistance R4 groups
At the cathode of switching diode D1 is meeting the grid of N-channel field-effect tube VT1 and one end of resistance R3 and electrolytic capacitor C1 just
Pole, the cathode of another termination circuit anode VCC of resistance R3, electrolytic capacitor C1 with connecing circuit GND, N-channel field-effect tube VT1's
Drain electrode meets circuit anode VCC, and the source electrode of N-channel field-effect tube VT2 passes through resistance R4 with connecing circuit GND；
Incandescent lamp bulb driving circuit：It is made of triggering resistance R5, bidirectional triode thyristor BCR, incandescent lamp bulb HL, two-way controllable
The control pole of silicon BCR meets the source electrode of N-channel field-effect tube VT1, the first anode T1 of bidirectional triode thyristor BCR by triggering resistance R5
It meets the second plate T2 of 220V AC powers zero line L, bidirectional triode thyristor BCR and passes through incandescent lamp bulb HL with connecing circuit GND；
9V regulated power supplies：It by step-down capacitor C3, bleeder resistance R6 and silicon rectifier diode D2, silicon voltage regulator diode DW and
The voltage stabilizing value of electrolytic capacitor C2 compositions, silicon voltage regulator diode DW is 9V, one end of one end and bleeder resistance R6 of step-down capacitor C3
Connect the other end of 220V AC powers zero line L, step-down capacitor C3 and another termination silicon rectifier diode D2 of bleeder resistance R6
Anode, the cathode of silicon rectifier diode D2 connects the anode of the cathode and electrolytic capacitor C2 of silicon voltage regulator diode DW, silicon voltage stabilizing two
The anode of pole pipe DW and cathode with the connecing circuit GND of electrolytic capacitor C2；
9V positive pole of stabilized voltage supply is connected with circuit anode VCC, 9V regulated power supplies cathode and circuit ground GND and 220V alternating currents
Source zero line side N is connected.
Description of the drawings
Attached drawing 1 is the embodiment circuit fundamental diagram that the present invention provides that a delay fades off night-light.
Specific implementation mode
Night-light circuit fundamental diagram and description of the drawings are faded off according to attached delay shown in FIG. 1, and according to invention content institute
Component technical parameter in each section circuit stated between component described in connection relation and embodiment requires and electricity
Road makes main points and carries out implementing that the present invention can be realized, and is further retouched to the relevant technologies work of the present invention with reference to embodiments
It states.
The title and its important technological parameters of component
VT1 is N-channel field-effect tube, the model IRFZ22 of selection；
BCR is bidirectional triode thyristor, and the technical parameter used is 1A, 450V bidirectional triode thyristor；
D1 is switching diode, the model 1N4148 of selection；
D2 is silicon rectifier diode, the model 1N4007 of selection；
DW is silicon voltage regulator diode, and the voltage stabilizing value used is 9V, power 1W；
For resistance all using metalfilmresistor, power is 1/8W；The resistance value of resistance R1 is 110K Ω；The resistance value of resistance R2
For 2.1M Ω；The resistance value of resistance R3 is 3.3M Ω；The resistance value of resistance R4 is 4.3K Ω；The resistance value for triggering resistance R5 is 33K Ω；It lets out
Electric discharge resistance R6 resistance value be 680K Ω, power 1W；
C1 is electrolytic capacitor, and capacity is 470 μ F/25V；C2 is electrolytic capacitor, the model C D11-10 used, and capacity is
680μ/25V；C3 is step-down capacitor, and capacity is the electric capacity of the dacron of 0.68 μ F/450V；
HL is incandescent lamp bulb, the use of power is 3~5W/220V incandescent lamp bulbs.
Circuit production main points and circuit debugging
Because the circuit structure that delay fades off night-light is fairly simple, as long as the electronic component performance selected under normal circumstances is complete
It is good, and the component connection relation in attached drawing 1 is welded to specifications, physical connection line and welding quality are by carefully inspection
After looking into correctly, circuit of the invention, which only needs to carry out simply debugging, to be worked normally；
Delay fades off the circuit of night-light according to following data, and resistance R1 is 110K, and resistance R2 is 2.2M Ω, electrolytic capacitor C1
For 470 μ F/25V, it is about 46 seconds that corresponding delay, which fades off the time,；The alternating voltage at the both ends incandescent lamp bulb HL is about 214V, by
It is gradually reduced to about 80V, until fully powered-off extinguishing.
The circuit structure design of the present invention, components' placement and its face shaping and its size etc. are not
The key technology of the present invention, nor claimed key technique content, because not influencing specific implementation of the present invention
The realization of process and goal of the invention, therefore do not illustrate one by one in the description.
Claims (1)
1. a kind of delay fades off night-light, it includes 220V AC powers, 9V regulated power supplies, partial pressure charging circuit, charge and discharge and prolongs
Fade off circuit, incandescent lamp bulb driving circuit late, it is characterised in that：
The partial pressure charging circuit is made of starting switch AN, resistance R1, resistance R2 and switching diode D1, switching diode
One end of one end and resistance R2 of the positive connecting resistance R1 of D1, the other end of resistance R1 connect circuit anode by starting switch AN
The cathode of another termination circuit of VCC, resistance R2 ground GND, switching diode D1 connect charge and discharge and delay fades off circuit；
The charge and discharge and delay fade off electric routing resistance R3, electrolytic capacitor C1, N-channel field-effect tube VT1 and resistance R4 groups
At the cathode of switching diode D1 is meeting the grid of N-channel field-effect tube VT1 and one end of resistance R3 and electrolytic capacitor C1 just
Pole, the cathode of another termination circuit anode VCC of resistance R3, electrolytic capacitor C1 with connecing circuit GND, N-channel field-effect tube VT1's
Drain electrode meets circuit anode VCC, and the source electrode of N-channel field-effect tube VT2 passes through resistance R4 with connecing circuit GND；
The incandescent lamp bulb driving circuit is made of triggering resistance R5, bidirectional triode thyristor BCR, incandescent lamp bulb HL, two-way controllable
The control pole of silicon BCR meets the source electrode of N-channel field-effect tube VT1, the first anode T1 of bidirectional triode thyristor BCR by triggering resistance R5
It meets the second plate T2 of 220V AC powers zero line L, bidirectional triode thyristor BCR and passes through incandescent lamp bulb HL with connecing circuit GND；
The 9V regulated power supplies by step-down capacitor C3, bleeder resistance R6 and silicon rectifier diode D2, silicon voltage regulator diode DW and
The voltage stabilizing value of electrolytic capacitor C2 compositions, silicon voltage regulator diode DW is 9V, one end of one end and bleeder resistance R6 of step-down capacitor C3
Connect the other end of 220V AC powers zero line L, step-down capacitor C3 and another termination silicon rectifier diode D2 of bleeder resistance R6
Anode, the cathode of silicon rectifier diode D2 connects the anode of the cathode and electrolytic capacitor C2 of silicon voltage regulator diode DW, silicon voltage stabilizing two
The anode of pole pipe DW and cathode with the connecing circuit GND of electrolytic capacitor C2；
The 9V positive pole of stabilized voltage supply is connected with circuit anode VCC, and with circuit GND and 220V are exchanged 9V regulated power supplies cathode
Zero-power line end N is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673158.3A CN108777908A (en) | 2018-06-26 | 2018-06-26 | Delay fades off night-light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673158.3A CN108777908A (en) | 2018-06-26 | 2018-06-26 | Delay fades off night-light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108777908A true CN108777908A (en) | 2018-11-09 |
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ID=64029547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810673158.3A Withdrawn CN108777908A (en) | 2018-06-26 | 2018-06-26 | Delay fades off night-light |
Country Status (1)
| Country | Link |
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| CN (1) | CN108777908A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110139448A (en) * | 2019-06-10 | 2019-08-16 | 佛山远钧智慧科技有限公司 | A kind of energy-saving and emission-reduction intelligence control system |
-
2018
- 2018-06-26 CN CN201810673158.3A patent/CN108777908A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110139448A (en) * | 2019-06-10 | 2019-08-16 | 佛山远钧智慧科技有限公司 | A kind of energy-saving and emission-reduction intelligence control system |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181109 |
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| WW01 | Invention patent application withdrawn after publication |