CN113194574A - Time-delay lamp turning-off device - Google Patents
Time-delay lamp turning-off device Download PDFInfo
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- CN113194574A CN113194574A CN202110267504.XA CN202110267504A CN113194574A CN 113194574 A CN113194574 A CN 113194574A CN 202110267504 A CN202110267504 A CN 202110267504A CN 113194574 A CN113194574 A CN 113194574A
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a delayed lamp turning-off device, which relates to the technical field of electronics and comprises: an illumination loop; the driving module is used for driving the illumination loop to work; the switch is used for controlling the connection and disconnection between the commercial power network and the driving module in an operable manner; the detection module is used for outputting a detection signal according to the voltage between the two input ends of the driving module; a control module, for receiving the detection signal, if a first fluctuation occurs in the detection signal within a first preset time period, outputting a first power adjustment signal with a duty ratio decreasing from high to low within a second preset time period; the driving module is connected with the control module and adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in a second preset time period according to the first power adjusting signal. According to the invention, after the lighting loop is disconnected, the lamp in the lighting loop is controlled to slowly dim until being extinguished within a period of time, so that inconvenience to a user caused by direct extinguishing is avoided.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a delayed turn-off device.
Background
At present, when a user wants to turn off the light, the user generally directly walks to the switch and turns off the light in a manner of pressing the switch by hand. In some preferred technical schemes, the light is turned off by adopting a remote control switch mode. However, in the existing technical scheme, when the lamp is turned off, the brightness of the lamp in the lighting loop cannot be controlled to be gradually reduced until the lamp is turned off, which causes much inconvenience to the daily use of a user.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a time-delay light-off device, which comprises:
an illumination loop;
the input end of the driving module is connected with a mains supply network, the output end of the driving module is connected with the illumination loop and used for driving the illumination loop to work, and the driving module comprises an output power adjusting port;
the switch is connected between the input end of the driving module and a commercial power network in series so as to control the on-off between the commercial power network and the driving module in an operable manner;
the detection module is connected between the two input ends of the driving module and used for outputting a detection signal according to the voltage between the two input ends of the driving module;
the control module is connected with the detection module to receive the detection signal, and if the detection signal generates a first fluctuation within a first preset time period, a first power adjustment signal with a duty ratio from large to small is output within a second preset time period;
and the output power adjusting port of the driving module is connected with the control module and adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in the second preset time period according to the first power adjusting signal.
Preferably, if a second fluctuation occurs in the detection signal within a third preset time period, the control module outputs a second power adjustment signal with a duty ratio decreasing from high to low within a fourth preset time period;
and the driving module adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in the fourth preset time period according to the second power adjustment signal.
Preferably, the device further comprises a prompt module, the control module comprises a prompt signal output port, and the prompt signal output port is connected with the prompt module;
when the first power control signal is effective or the second power control signal is effective, the control module enables the prompt signal output port to generate a prompt signal, and the prompt module gives a prompt when the prompt signal is effective.
Preferably, the detection module includes:
and the voltage division circuit is connected between the two input ends of the driving module in parallel, and a voltage division node of the voltage division circuit is connected with the control module.
Preferably, the driving module includes:
the rectifier circuit is used for converting an alternating voltage into a direct voltage, and two input ends of the rectifier circuit form two input ends of the driving module;
and the driving circuit is used for providing the output power adjusting port and is respectively connected with the output end of the rectifying loop and the lighting loop.
Preferably, the control module includes:
the first power adjusting signal output port is connected with the input end of an amplifying circuit through a diode;
the second power adjusting signal output port is connected with the input end of the amplifying circuit through a diode;
and the output end of the amplifying circuit is connected with the output power adjusting port.
Preferably, the amplifying circuit includes:
a bias resistor;
the triode, the base of triode is connected to the one end of biasing resistance, the other end of biasing resistance forms amplifier circuit's input, an input voltage is connected through a resistance to the collecting electrode of triode, the projecting pole ground connection of triode, the collecting electrode of triode forms amplifier circuit's output.
Preferably, the prompting module includes:
an indicator light connected in series between an input voltage and ground;
the resistor is connected between the indicator light and the input voltage in series;
a control switch is connected in series between the indicator light and the ground;
and the control end of the control switch is connected with the prompt signal output port through a resistor.
Preferably, the first preset time period is 1 second, and the second preset time period is 1 minute.
Preferably, the third preset time period is 1.5 seconds, and the fourth preset time period is 2 minutes.
The technical scheme has the following advantages or beneficial effects:
according to the technical scheme, the output power in the lighting loop is controlled to be turned off from large to small within a period of time after the lighting loop is disconnected, so that the brightness of the lamp in the lighting loop is slowly turned off from bright to dark, inconvenience to a user due to the fact that the lamp in the direct lighting loop is directly turned off is avoided, convenience and safety of use of the lamp in the lighting loop are effectively improved, and popularization is facilitated.
Drawings
FIG. 1 is a schematic view of a delayed turn-off device according to a preferred embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a delayed turn-off device according to a preferred embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present invention is not limited to the embodiment, and other embodiments may be included in the scope of the present invention as long as the gist of the present invention is satisfied.
In accordance with the above-mentioned problems of the prior art, there is provided a delayed turn-off device, as shown in fig. 1, comprising:
an illumination circuit 1;
the input end of the driving module 2 is connected with a commercial power network AC input, the output end of the driving module 2 is connected with the lighting circuit 1 and used for driving the lighting circuit 1 to work, and the driving module 2 comprises an output power adjusting port;
a switch SW, which is connected in series between the input end of the driving module 2 and the commercial power network AC input, for operatively controlling the on/off between the commercial power network AC input and the driving module 2;
the detection module 3 is connected between the two input ends of the driving module 2 and used for outputting a detection signal according to the voltage between the two input ends of the driving module 2;
a control module 4 connected to the detection module 3 for receiving the detection signal, and outputting a first power adjustment signal with a duty ratio decreasing from high to low in a second preset time period if the detection signal fluctuates in a first preset time period;
the output power adjusting port of the driving module 2 is connected to the control module 4, and adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off within a second preset time period according to the first power adjusting signal.
Specifically, in this embodiment, the control module 4 may adopt a Microchip PIC12F series of single chip chips, and since the series of single chip chips have 8 pins, the series of single chip chips can be used as each input/output port of the control module 4 in the present technical solution, so as to implement centralized control over each part of the module.
In a preferred embodiment of the present invention, the control module 4 comprises:
a first power adjustment signal output port O1, the first power adjustment signal output port O1 being connected to an input terminal of an amplifier circuit through a diode;
a second power adjustment signal output port O2, the second power adjustment signal output port O2 is connected to the input terminal of the amplifier circuit through a diode;
the output end of the amplifying circuit is connected with the output power adjusting port.
Specifically, in this embodiment, the fourth pin of the single chip corresponds to a first input port I1 of the control module 4, and the control module 4 is connected to the detection module 3 through the first input port I1. The seventh pin of the single chip corresponds to the first power adjustment signal output port O1, and the sixth pin of the single chip corresponds to the second power adjustment signal output port O2. The switch SW in the technical scheme can adopt the switch SW in the existing circuit, and then the hardware equipment cost of the technical scheme is reduced.
In a preferred embodiment of the present invention, the first predetermined time period is 1 second, and the second predetermined time period is 1 minute.
Specifically, in the present embodiment, after the switch SW is opened and closed once in 1 second, the detection signal detected by the detection module 3 will fluctuate first in 1 second. After receiving the detection signal with the first fluctuation, the first input port I1 of the one-chip microcomputer chip outputs a first power adjustment signal with a duty ratio from large to small to the driving module 2 through the first power adjustment signal output port O1 within 1 minute, and the driving module 2 adjusts the output power output to the lighting circuit 1 according to the first power adjustment signal, so that the brightness of the lamp in the lighting circuit 1 is slowly reduced within 1 minute until the lamp is completely extinguished. Avoid lamps and lanterns directly to extinguish and cause visual effect to the user, reduce the collision risk of user in the dark surrounds, embodied this technical scheme's security, do benefit to the popularization. The first power adjustment signal may be a 80% 25Khz PWM signal that is stopped after the PWM signal slowly decreases from 80% to 20% within 1 minute.
Further, the driving module 2 may select a dimming driver with AC input and dc output of the commercial power network AC input. The dimming driver includes:
the two alternating current input ports are used for connecting a zero line and a live wire of a commercial power network AC input so as to input alternating current;
the output power adjusting port comprises a positive dimming port D + and a negative dimming port D-, the positive dimming port is used for outputting a first power adjusting instruction and a second power adjusting instruction, and the negative dimming port is grounded.
And the two LED interfaces are respectively connected with the anode and the cathode of the lighting circuit 1 and are used for adjusting the output power of the lighting circuit 1.
In a preferred embodiment of the present invention, if a second fluctuation occurs in the detection signal within a third predetermined time period, the control module 4 outputs a second power adjustment signal with a duty ratio decreasing from high to low within a fourth predetermined time period;
and the driving module 2 adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in a fourth preset time period according to the second power adjustment signal.
Further, the third preset time period is 1.5 seconds, and the fourth preset time period is 2 minutes.
Specifically, in the present embodiment, after the switch SW is opened and closed once in 1.5 seconds, the detection signal detected by the detection module 3 generates the second fluctuation within 1 second. After the first input port I1 of the single chip receives the detection signal with the second fluctuation, a second power adjustment signal with a duty ratio decreasing from high to low is output to the driving module 2 through the second power adjustment signal output port O2 within 2 minutes, and the driving module 2 adjusts the output power output to the lighting circuit 1 according to the second power adjustment signal, so that the brightness of the lamp in the lighting circuit 1 is slowly reduced within 2 minutes until the lamp is completely extinguished.
Further, the control module 4 further includes a first interface and a second interface.
Further, the first interface is connected to the input voltage VDD, and the second interface is grounded.
Furthermore, the first interface corresponds to a first pin of the single chip, and the second interface corresponds to an eighth pin of the single chip.
In the preferred embodiment of the present invention, the device further comprises a prompt module 5, the control module 4 comprises a prompt signal output port O3, the prompt signal output port O3 is connected to the prompt module 5;
when the first power control signal is active or the second power control signal is active, the control module 4 enables the prompt signal output port O3 to generate a prompt signal, and the prompt module 5 issues a prompt when the prompt signal is active.
Specifically, in this embodiment, the prompt signal output port O3 corresponds to the fifth pin of the single chip, and the indication of the function of turning off the light with a delay is realized by setting the prompt module 5, when the first power control signal or the second power control signal received by the control module 4 is valid, the prompt signal is generated and sent to the prompt module 5 through the prompt signal output port O3, and the prompt module 5 lights up or flashes according to the prompt signal to indicate that the light is being turned off with a delay.
In a preferred embodiment of the present invention, the detection module 3 includes:
and the voltage division circuit is connected between the two input ends of the driving module 2 in parallel, and a voltage division node of the voltage division circuit is connected with the control module 4.
Specifically, in this embodiment, the voltage dividing circuit includes a first diode D1, a sixth resistor R6, a seventh resistor R7, and an eighth resistor R8 connected in series in sequence, and a fifth resistor R5 connected in parallel with a branch where the first diode D1, the sixth resistor R6, the seventh resistor R7, and the eighth resistor R8 are located, and a voltage dividing node is disposed between the fifth resistor R5 and the eighth resistor R8.
In a preferred embodiment of the present invention, the driving module 2 includes:
a rectifying circuit for converting an ac voltage into a dc voltage, two input ends of the rectifying circuit forming two input ends of the driving module 2;
and the driving circuit is used for providing an output power adjusting port and is respectively connected with the output end of the rectifying circuit and the lighting circuit 1.
In a preferred embodiment of the present invention, as shown in fig. 2, the amplifying circuit includes:
a bias resistor R3;
one end of a biasing resistor R3 is connected with the base electrode of the triode, the other end of the biasing resistor R3 forms the input end of the amplifying circuit, the collector electrode of the triode is connected with an input voltage VDD through a resistor, the emitting electrode of the triode is grounded, and the collector electrode of the triode forms the output end of the amplifying circuit.
Specifically, in this embodiment, the first power adjustment signal output port O1 is connected to an anode of a third diode D3, and a cathode of the third diode D3 is connected to the bias resistor R3. The first power adjustment signal output port O1 is connected to an anode of a second diode D2, and a cathode of the second diode D2 is connected to the bias resistor R3. At this time, the second diode D2 and the third diode D3 are connected in parallel and then connected to the input terminal of the amplifying circuit. The other end of the bias resistor R3 is connected with the base of the first triode Q1, the emitter of the first triode Q1 is grounded, the collector of the first triode Q1 forms the output end of the amplifying circuit, the collector of the first triode Q1 is connected with the positive dimming port D + of the driving module 2, the collector of the first triode Q1 is further connected with a fourth resistor R4, and the other end of the fourth resistor R4 is connected with the input voltage VDD. When the first power adjustment signal output port O1 outputs the first power adjustment signal or the second power adjustment signal output port O2 outputs the second power adjustment signal, the current flows to the base of the first transistor Q1 through the bias resistor R3, at this time, the collector and the emitter of the first transistor Q1 are turned on, and at this time, the driving module 2 adjusts the power output to the lighting circuit 1.
In a preferred embodiment of the present invention, the prompt module 5 includes:
an indicator light L1 connected in series between an input voltage VDD and ground;
a resistor connected in series between the indicator light L1 and the input voltage VDD;
a control switch is connected in series between the indicator light L1 and the ground;
the control end of the control switch is connected with the prompting signal output port O3 through a resistor.
Specifically, in this embodiment, when the first power control signal is active or the second power control signal is active, the control module 4 outputs the indication signal from the indication signal output port O3, and the indication signal flows to the control switch through the first resistor R1. The control switch may be a second transistor Q2. After the base electrode of the second triode Q2 receives the prompt signal, the emitter electrode and the collector electrode of the second triode Q2 are conducted, and at this time, the current output by the input voltage VDD flows through the second resistor R2, the indicator light L1 and the collector electrode and the emitter electrode of the second triode Q2 in sequence until reaching the ground end; at this time, the indicator light L1 starts to light up or flash normally, indicating the function of turning off the light with a delay.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A delayed turn-off lamp device, comprising:
an illumination loop;
the input end of the driving module is connected with a mains supply network, the output end of the driving module is connected with the illumination loop and used for driving the illumination loop to work, and the driving module comprises an output power adjusting port;
the switch is connected between the input end of the driving module and a commercial power network in series so as to control the on-off between the commercial power network and the driving module in an operable manner;
the detection module is connected between the two input ends of the driving module and used for outputting a detection signal according to the voltage between the two input ends of the driving module;
the control module is connected with the detection module to receive the detection signal, and if the detection signal generates a first fluctuation within a first preset time period, a first power adjustment signal with a duty ratio from large to small is output within a second preset time period;
and the output power adjusting port of the driving module is connected with the control module and adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in the second preset time period according to the first power adjusting signal.
2. The device of claim 1, wherein if a second fluctuation occurs in the detection signal within a third predetermined time period, the control module outputs a second power adjustment signal with a duty ratio decreasing from high to low within a fourth predetermined time period;
and the driving module adjusts the output power of the lighting circuit from high to low until the lighting circuit is turned off in the fourth preset time period according to the second power adjustment signal.
3. The device of claim 2, further comprising a prompt module, wherein the control module comprises a prompt signal output port, and the prompt signal output port is connected to the prompt module;
when the first power control signal is effective or the second power control signal is effective, the control module enables the prompt signal output port to generate a prompt signal, and the prompt module gives a prompt when the prompt signal is effective.
4. The delayed lamp shutdown device of claim 1, wherein the detection module comprises:
and the voltage division circuit is connected between the two input ends of the driving module in parallel, and a voltage division node of the voltage division circuit is connected with the control module.
5. The delayed lamp shutdown device according to claim 1, wherein the driving module comprises:
the rectifier circuit is used for converting an alternating voltage into a direct voltage, and two input ends of the rectifier circuit form two input ends of the driving module;
and the driving circuit is used for providing the output power adjusting port and is respectively connected with the output end of the rectifying loop and the lighting loop.
6. The delayed lamp shutdown device of claim 1, wherein the control module comprises:
the first power adjusting signal output port is connected with the input end of an amplifying circuit through a diode;
the second power adjusting signal output port is connected with the input end of the amplifying circuit through a diode;
and the output end of the amplifying circuit is connected with the output power adjusting port.
7. The delayed lamp shutdown device of claim 6, wherein the amplification circuit comprises:
a bias resistor;
the triode, the base of triode is connected to the one end of biasing resistance, the other end of biasing resistance forms amplifier circuit's input, an input voltage is connected through a resistance to the collecting electrode of triode, the projecting pole ground connection of triode, the collecting electrode of triode forms amplifier circuit's output.
8. The delayed lamp shutdown device according to claim 3,
the prompting module comprises:
an indicator light connected in series between an input voltage and ground;
the resistor is connected between the indicator light and the input voltage in series;
a control switch is connected in series between the indicator light and the ground;
and the control end of the control switch is connected with the prompt signal output port through a resistor.
9. The delayed lamp shutdown device according to claim 1, wherein the first preset time period is 1 second, and the second preset time period is 1 minute.
10. The delayed lamp shutdown device according to claim 2, wherein the third predetermined period of time is 1.5 seconds and the fourth predetermined period of time is 2 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267504.XA CN113194574A (en) | 2021-03-11 | 2021-03-11 | Time-delay lamp turning-off device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110267504.XA CN113194574A (en) | 2021-03-11 | 2021-03-11 | Time-delay lamp turning-off device |
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| CN113194574A true CN113194574A (en) | 2021-07-30 |
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| CN202110267504.XA Pending CN113194574A (en) | 2021-03-11 | 2021-03-11 | Time-delay lamp turning-off device |
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| CN103280189A (en) * | 2013-05-17 | 2013-09-04 | 深圳市华星光电技术有限公司 | LED (Light-Emitting Diode) dimming circuit |
| CN105873337A (en) * | 2016-05-31 | 2016-08-17 | 吴圣铎 | Slowly lighted on and off illuminating lamp |
| CN206212329U (en) * | 2015-12-24 | 2017-05-31 | 深圳市聚作照明股份有限公司 | A kind of LED drive circuit |
| CN209593857U (en) * | 2018-12-06 | 2019-11-05 | 广州市广建市政建设工程有限公司 | Street lamp |
| CN110809343A (en) * | 2019-12-10 | 2020-02-18 | 江一奇 | Control method for gradually-lighting and gradually-dimming LED (light emitting diode) illumination |
| CN112333883A (en) * | 2020-11-02 | 2021-02-05 | 无锡职业技术学院 | PWM dimming type LED light-emitting system capable of avoiding inductive current overshoot |
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2021
- 2021-03-11 CN CN202110267504.XA patent/CN113194574A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280189A (en) * | 2013-05-17 | 2013-09-04 | 深圳市华星光电技术有限公司 | LED (Light-Emitting Diode) dimming circuit |
| CN206212329U (en) * | 2015-12-24 | 2017-05-31 | 深圳市聚作照明股份有限公司 | A kind of LED drive circuit |
| CN105873337A (en) * | 2016-05-31 | 2016-08-17 | 吴圣铎 | Slowly lighted on and off illuminating lamp |
| CN209593857U (en) * | 2018-12-06 | 2019-11-05 | 广州市广建市政建设工程有限公司 | Street lamp |
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Effective date of registration: 20211224 Address after: 315300 Shijia, Yangshan, zhoutangxi, Ertang village, Zonghan street, Cixi City, Ningbo City, Zhejiang Province Applicant after: CIXI HUASHENG LED LIGHTING CO.,LTD. Address before: 315000 factory buildings on the first and second floors of office building 79 Jinxing Road, Binhai Industrial Park, Xiangshan County, Ningbo City, Zhejiang Province Applicant before: Dali light Intelligent Technology Co.,Ltd. |
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