CN212785948U - Light-emitting circuit with timing switch - Google Patents
Light-emitting circuit with timing switch Download PDFInfo
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- CN212785948U CN212785948U CN202022232034.7U CN202022232034U CN212785948U CN 212785948 U CN212785948 U CN 212785948U CN 202022232034 U CN202022232034 U CN 202022232034U CN 212785948 U CN212785948 U CN 212785948U
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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 utility model relates to a lighting circuit with time switch relates to the technical field of switch, and wherein, a lighting circuit with time switch, including the photo resistance RT, the one end electricity of photo resistance RT is connected with test resistance R1, the other end ground connection of photo resistance RT, the one end electricity that photo resistance RT was kept away from to test resistance R1 is connected with the power, the junction electricity of photo resistance RT and test resistance R1 is connected with first voltage comparator, first voltage comparator's output electricity is connected with light emitting component. A lighting circuit with a time switch in this application has the effect of time switch lamp.
Description
Technical Field
The present application relates to the field of switches, and more particularly, to a lighting circuit with a timing switch.
Background
A switch refers to an electronic component that can open and close a circuit. The most common switches have one or more electrical contacts, the "closing" of which indicates that the electrical contact is conductive, allowing current to flow; an "open" of a contact means that the electronic contact is not conducting, creating an open circuit, not allowing current to flow.
Can install the lamp at present on the typeface on some bill-boards, when light was dark, the switch of the lamp on the closed intercommunication typeface, the lamp circular telegram is luminous, makes the bill-board more striking, in the morning again with the switch disconnection, the lamp outage extinguishes, avoids causing the waste of electric energy.
In view of the above-mentioned related art, the inventor believes that when a worker turns on a switch and needs to turn off a lamp in the morning, the worker easily forgets to turn off the lamp to cause waste of electric energy, and therefore needs to provide a technical solution to improve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the power is wasted due to forgetting to turn off the lamp of the advertising board, the application provides a light-emitting circuit with a timing switch.
The application provides a luminescent circuit with time switch adopts following technical scheme:
the utility model provides a lighting circuit with time switch, includes photo resistance RT, photo resistance RT's one end electricity is connected with test resistance R1, photo resistance RT's other end ground connection, test resistance R1 keeps away from photo resistance RT's one end electricity and is connected with DC power supply's positive pole, photo resistance RT and test resistance R1's junction electricity is connected with the first voltage comparator of built-in first reference voltage, the output electricity of first voltage comparator is connected with light emitting component. When the voltage value of the connection position between the photosensitive resistor RT and the test resistor R1 is larger than a first reference voltage, the first voltage comparator outputs a high level, otherwise, a low level is output, and the light-emitting component is powered on to emit light after receiving the high level or is powered off to extinguish after receiving the low level.
By adopting the technical scheme, when light is darkened, the resistance value of the photoresistor RT is increased along with the darkening of the light, at the moment, the voltage between the photoresistor RT and the test resistor R1 is increased, the voltage between the photoresistor RT and the test resistor R1 is compared with the standard voltage set in the first voltage comparator, when the voltage value between the photoresistor RT and the test resistor R1 is larger than the standard voltage in the first voltage comparator, the first voltage comparator outputs high level, and then the light-emitting component electrically connected with the output end of the first voltage comparator is enabled to be powered on to work, so that the lamp on the advertising board can be automatically turned on when the light is darkened; when light is strong, the resistance value of the photoresistor RT is reduced along with the light becoming strong, at the moment, the voltage value between the photoresistor RT and the testing resistor R1 is reduced, and further, when the voltage value between the photoresistor RT and the testing resistor R1 is compared with the standard voltage in the first voltage comparator, the voltage value between the photoresistor RT and the testing resistor R1 is smaller than the standard voltage value in the first voltage comparator, so that the first voltage comparator outputs low level, the voltage output by the output end of the first voltage comparator cannot reach the rated voltage of the light-emitting component, the light-emitting component stops working, and the effect of automatically closing the lamp on the advertising board when the light is strong is favorably achieved.
Optionally, the junction of the light dependent resistor RT and the test resistor R1 is electrically connected with an inverting amplifier, and the output end of the inverting amplifier and the input end of the first voltage comparator are electrically connected with a first inverter in series, the input end of the first inverter is electrically connected with the inverting amplifier, and the output end of the first inverter is electrically connected with the first voltage comparator.
Through adopting above-mentioned technical scheme, when the resistance of photo resistance RT increases along with the darkening of light, because of the variation ratio of photo resistance RT resistance is more little, set up the inverting amplifier this moment, amplify the voltage value between photo resistance RT and test resistance R1, the looks inversion is carried out to first inverter rethread, compare the voltage value after will amplifying again with the standard voltage in the first voltage comparator, when the voltage value after the enlarging was greater than the standard voltage in the first voltage comparator this moment, light emitting component is because of the output high level of first voltage comparator output and electrically conducts and begin work.
Optionally, the output end of the first voltage comparator is electrically connected to a driving assembly, and the driving assembly receives a high level and then drives the light-emitting assembly to emit light in a power-on mode or receives a low level and then drives the light-emitting assembly to extinguish in a power-off mode.
Through adopting above-mentioned technical scheme, when the voltage between photo resistance RT and test resistance R1 is greater than the standard voltage in the first voltage comparator, first voltage comparator output high level, and then make drive circuit begin work, and the drive light emitting component is luminous, and then be favorable to under the darker circumstances of light, and light emitting component opens automatically, makes the bill-board more striking, and drive circuit is favorable to improving the driving force of first voltage comparator.
Optionally, an output end of the first voltage comparator is electrically connected to a timer, an output end of the timer is electrically connected to an audible and visual alarm, the timer outputs a high level after receiving the high level for a set time, and otherwise, outputs a low level.
By adopting the technical scheme, when the voltage value between the photosensitive resistor RT and the test resistor R1 is greater than the standard voltage value in the first voltage comparator, the first voltage comparator outputs a high level, the timer electrically connected with the output end of the first voltage comparator starts timing at the moment, and when the set time in the timer is up, the first voltage comparator still continues to output the high level, so that the photosensitive resistor RT fails, the resistance value of the photosensitive resistor RT is always greater than the resistance value of the photosensitive resistor which is normally illuminated, the audible and visual alarm starts alarming at the moment, the worker is reminded that the lamp on the advertising board is not turned off, and the photosensitive resistor RT fails, and the photosensitive resistor RT needs to be replaced or overhauled.
Optionally, one end of the timer, which is far away from the first voltage comparator, is electrically connected with a second voltage comparator, and an output end of the second voltage comparator is electrically connected with the audible and visual alarm.
Through adopting above-mentioned technical scheme, after the magnitude of voltage of output when first voltage comparator is greater than the standard voltage value that sets for in the second voltage comparator, then show that the resistance of photo resistance RT is constantly increasing along with the reduction of light, and then when light becomes strong, the resistance of photo resistance RT still continues the grow, and then photo resistance RT breaks down, the output high level of second voltage comparator's this moment, and then the audible-visual annunciator of being connected with second voltage comparator's output electricity begins to report to the police, remind staff's photo resistance to break down, and then luminous component can't self-closing, need the manual work to close.
Optionally, the output of first voltage comparator is electrically connected with the delayer, the delayer includes that resistance R7 and electric capacity C2 establish ties and form, electric capacity C2 is kept away from resistance R7's one end ground connection, electric capacity C2 is close to resistance R7's one end and audible-visual annunciator electric connection.
By adopting the technical scheme, after the first voltage comparator outputs the high level, the time delayer electrically connected with the output end of the first voltage comparator starts to time, and after the set time in the time delayer is reached, namely the time of day, the first voltage comparator still continues to output the high level, which indicates that the resistance value of the photosensitive resistor RT is not reduced along with the enhancement of light, so that the audible and visual alarm starts to give an alarm to remind a worker that the light-emitting component cannot be automatically turned on or off.
Optionally, a resistor is electrically connected between the first voltage comparator and the driving component, one end of the timer, which is far away from the first voltage comparator, is electrically connected to a second inverter, and an output end of the second inverter is electrically connected to one end of the driving component, which is close to the resistor.
By adopting the technical scheme, when the first voltage comparator outputs a high level, the timer starts timing, when the set time of the timer is reached, the first voltage comparator still continues to output the high level, at the moment, the second phase inverter electrically connected with the timer inverts the voltage of the driving assembly, so that the driving assembly stops working, the effect of extinguishing the light-emitting assembly is achieved, and the light-emitting assembly is extinguished through the second phase inverter when the photosensitive resistor RT fails, so that the waste of electric energy is reduced.
Optionally, the light emitting assembly is formed by connecting a plurality of LED lamps in parallel.
Through adopting above-mentioned technical scheme, the LED lamp on every typeface on the bill-board is established ties with drive assembly through parallelly connected again, and then is favorable to making the LED lamp on the typeface not influence each other, and when a lamp broke down, remaining lamp can also normally work.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when light is darkened, the resistance value of the photoresistor RT is increased along with the darkening of the light, at the moment, the voltage between the photoresistor RT and the testing resistor R1 is increased, the voltage between the photoresistor RT and the testing resistor R1 is compared with the standard voltage set in the first voltage comparator, when the voltage value between the photoresistor RT and the testing resistor R1 is larger than the standard voltage in the first voltage comparator, the first voltage comparator outputs high level, and therefore the light-emitting component electrically connected with the output end of the first voltage comparator is enabled to be powered on to work, and the automatic starting of the lamp on the advertising board when the light is darkened is facilitated; when the light is strong, the resistance value of the photoresistor RT is reduced along with the increase of the light, at the moment, the voltage value between the photoresistor RT and the testing resistor R1 is reduced, and further, when the voltage value between the photoresistor RT and the testing resistor R1 is compared with the standard voltage in the first voltage comparator, the voltage value between the photoresistor RT and the testing resistor R1 is smaller than the standard voltage value in the first voltage comparator, so that the first voltage comparator outputs a low level, the voltage output by the voltage comparator and the output end of the first voltage comparator cannot reach the rated voltage of the light-emitting component, the light-emitting component stops working, and the effect of automatically turning off the lamp on the advertising board when the light is strong is favorably achieved;
2. when the resistance value of the photoresistor RT is increased along with the dimming of light, the variation of the resistance value of the photoresistor RT is small, a reverse amplifier is arranged at the moment, the voltage value between the photoresistor RT and the test resistor R1 is amplified, then the phase inversion is carried out through a first phase inverter, the amplified voltage value is compared with the standard voltage in the first voltage comparator, and at the moment, when the amplified voltage value is larger than the standard voltage in the first voltage comparator, the light-emitting component conducts electricity and starts to work due to the fact that the output end of the first voltage comparator outputs high level;
3. when the voltage between the photosensitive resistor RT and the test resistor R1 is greater than the standard voltage in the first voltage comparator, the first voltage comparator outputs a high level, so that the driving circuit starts to work to drive the light-emitting component to emit light, and further the light-emitting component is automatically started under the condition that the light is dark, so that the billboard is more striking, and the driving circuit is favorable for improving the driving capability of the first voltage comparator.
Drawings
FIG. 1 is a schematic circuit diagram of a lighting circuit with a timing switch according to an embodiment of the present application;
fig. 2 is a schematic circuit diagram of a lighting circuit with a timing switch according to an embodiment of the present application.
Description of reference numerals: 1. a first voltage comparator; 2. a light emitting assembly; 3. an inverting amplifier; 4. a first inverter; 5. a drive assembly; 6. a timer; 7. an audible and visual alarm; 8. a second voltage comparator; 9. a time delay; 10. a resistor; 11. a second inverter.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a light-emitting circuit with a timing switch. Referring to fig. 1 and 2, a lighting circuit with a timing switch comprises a photoresistor RT, one end of the photoresistor RT is electrically connected with a test resistor R1, the other end of the photoresistor RT is grounded, one end of the test resistor R1 far away from the photoresistor RT is electrically connected with the anode of a direct current power supply, the junction of the photoresistor RT and the test resistor R1 is electrically connected with an inverting amplifier 3, the output end of the inverting amplifier 3 is connected with a first voltage comparator 1 with a built-in first reference voltage, a first inverter 4 is electrically connected between the output end of the inverting amplifier 3 and the input end of the first voltage comparator 1 in series, the input end of the first inverter 4 is electrically connected with the inverting amplifier, the output end of the first inverter 4 is electrically connected with the first voltage comparator 1, the output end of the first voltage comparator 1 is electrically connected with the light-emitting component 2, and the light-emitting component 2 is formed by connecting a plurality of LED lamps in parallel. When the voltage value of the connection between the photosensitive resistor RT and the test resistor R1 is greater than the first reference voltage, the first voltage comparator 1 outputs high level, otherwise, the first voltage comparator outputs low level, and the light-emitting component 2 is powered on to emit light after receiving the high level or is powered off to extinguish after receiving the low level. When the light becomes dark, the resistance of the photo resistor RT increases as the light becomes dark, and the voltage between the photo resistor RT and the test resistor R1 becomes larger, the voltage between the light sensitive resistor RT and the test resistor R1 is amplified by the inverting amplifier 3, inverted by the first inverter 4, and compared with the standard voltage set in the first voltage comparator 1, when the amplified voltage value is greater than the standard voltage in the first voltage comparator 1, the first voltage comparator 1 outputs a high level, thereby causing the light emitting component 2 electrically connected with the output terminal of the first voltage comparator 1 to be electrified and operated, and the light-emitting component 2 is formed by connecting a plurality of LED lamps in parallel, which is beneficial to automatically turning on the lamps on the billboard when the light is dark, and the LED lamps are not influenced mutually, and when one lamp breaks down, other lamps can work normally.
When light is strong, the resistance value of the photoresistor RT is reduced along with the light intensity, at the moment, the voltage value between the photoresistor RT and the test resistor R1 is reduced, and further when the amplified voltage value is compared with the standard voltage in the first voltage comparator 1, the amplified voltage value is smaller than the standard voltage value in the first voltage comparator 1, so that the first voltage comparator 1 outputs a low level, the voltage output by the output end of the first voltage comparator 1 cannot reach the rated voltage of the light-emitting component 2, the light-emitting component 2 stops working, and the effect of automatically closing the lamp on the advertising board when the light intensity is strong is favorably achieved.
The output end of the first voltage comparator 1 is electrically connected with a driving component 5, and the driving component 5 receives a high level and then drives the light-emitting component 2 to be powered on to emit light or receives a low level and then drives the light-emitting component 2 to be powered off to extinguish; and the output end of the first voltage comparator 1 is electrically connected with a timer 6, the output end of the timer 6 is electrically connected with an audible and visual alarm 7, the timer 6 outputs a high level after receiving the high level for a set time, otherwise, outputs a low level. When the voltage value between the photoresistor RT and the test resistor R1 is larger than the standard voltage value in the first voltage comparator 1, the first voltage comparator 1 outputs high level, at the moment, the timer 6 electrically connected with the output end of the first voltage comparator 1 starts timing, the driving component 5 drives the light-emitting component 2 to start working, when the time reaches the time set in the timer 6, the first voltage comparator 1 still continues to output high level, the photoresistor RT is indicated to be invalid, the audible and visual alarm 7 starts alarming at the moment, the worker is reminded that the lamp on the billboard is not turned off, and the photoresistor RT breaks down, and the photoresistor RT needs to be replaced or overhauled.
The output end of the first voltage comparator 1 can also be electrically connected with a second voltage comparator 8 or a time delay device 9, and the output end of the second voltage comparator 8 is electrically connected with the audible and visual alarm 7 or the output end of the time delay device 9 is electrically connected with the audible and visual alarm 7. When first voltage comparator 1 exports the high level, compare the magnitude of voltage of first voltage comparator 1 output with the standard voltage in the second voltage comparator 8, when being greater than the standard voltage in the second voltage comparator 8, then show that the resistance of photo resistance RT is continuously increasing, do not reduce because of the reinforcing resistance value of light, it breaks down to explain photo resistance RT, second voltage comparator 8 exports the high level this moment, make audible-visual annunciator 7 report to the police, remind the staff to need the manual work to close light emitting component 2, avoid causing the waste of electric energy.
After the first voltage comparator 1 outputs a high level, the time delay unit 9 starts timing, and when the set time of the time delay unit 9 is reached, the first voltage comparator 1 still continuously outputs the high level, which indicates that the resistance value of the photosensitive resistor RT is not reduced along with the enhancement of light, the light emitting component 2 cannot be automatically closed, and the audible and visual alarm 7 starts alarming to remind a worker.
When the photoresistor RT fails, a resistor 10 is electrically connected between the first voltage comparator 1 and the driving element 5, a second inverter 11 is electrically connected to one end of the timer 6 far from the first voltage comparator 1, and the second inverter 11 is electrically connected to one end of the driving element 5 near the resistor 10. After the time set by the timer 6 is reached, the first voltage comparator 1 continues to output the high level, and at this time, the second inverter 11 electrically connected to the timer 6 starts to operate, so that the signal received by the driving component 5 electrically connected to the second inverter 11 is at the low level, and further the driving component 5 is prompted to stop operating, thereby achieving the effect of turning off the light emitting component 2.
The implementation principle of the light-emitting circuit with the timing switch in the embodiment of the application is as follows: the resistance value of the photoresistor RT is increased along with the reduction of light, at the moment, the voltage between the photoresistor RT and the test resistor R1 is amplified, the amplified voltage value is compared with the standard voltage in the first voltage comparator 1, and when the amplified voltage value is larger than the standard value, the driving circuit drives the light-emitting component 2 to start working, so that the lamp on the billboard is lighted; when light is enhanced, the resistance value of the photoresistor RT is reduced, the voltage value between the photoresistor RT and the test resistor R1 is reduced, and then is smaller than the standard voltage in the first voltage comparator 1, at the moment, the first voltage comparator 1 outputs low level, and then the driving assembly 5 stops working, and the light-emitting assembly 2 is enabled to be automatically extinguished.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A light-emitting circuit with a timing switch comprises a photoresistor RT, wherein one end of the photoresistor RT is electrically connected with a test resistor R1, the other end of the photoresistor RT is grounded, one end, far away from the photoresistor RT, of the test resistor R1 is electrically connected with the anode of a direct-current power supply, the junction of the photoresistor RT and the test resistor R1 is electrically connected with a first voltage comparator (1) with a built-in first reference voltage, and the output end of the first voltage comparator (1) is electrically connected with a light-emitting component (2); when the voltage value of the connection position between the photosensitive resistor RT and the test resistor R1 is larger than a first reference voltage, the first voltage comparator (1) outputs a high level, otherwise, a low level is output, and the light-emitting component (2) is powered on to emit light after receiving the high level or is powered off to extinguish after receiving the low level.
2. A lighting circuit with a time switch as claimed in claim 1, wherein: the junction of photoresistor RT and test resistance R1 is connected with inverting amplifier (3) electrically, just series connection is connected with first inverter (4) between the output of inverting amplifier (3) and the input of first voltage comparator (1), the input and the inverting amplifier electricity of first inverter (4) are connected, the output and the first voltage comparator (1) electricity of first inverter (4) are connected.
3. A lighting circuit with a time switch as claimed in claim 1, wherein: the output end of the first voltage comparator (1) is electrically connected with a driving assembly (5), and the driving assembly (5) receives a high level and then drives the light-emitting assembly (2) to be electrified to emit light or receives a low level and then drives the light-emitting assembly (2) to be powered off and extinguished.
4. A lighting circuit with a time switch as claimed in claim 1, wherein: the output end of the first voltage comparator (1) is electrically connected with a timer (6), the output end of the timer (6) is electrically connected with an audible and visual alarm (7), and the timer (6) outputs a high level after receiving the high level for a set time, otherwise outputs a low level.
5. A lighting circuit with a time switch as claimed in claim 4, wherein: one end of the timer (6) far away from the first voltage comparator (1) is electrically connected with a second voltage comparator (8), and the output end of the second voltage comparator (8) is electrically connected with the audible and visual alarm (7).
6. A lighting circuit with a time switch as claimed in claim 4, wherein: the output of first voltage comparator (1) is electrically connected with delay timer (9), delay timer (9) include resistance R7 and electric capacity C2 establish ties and form, electric capacity C2 keeps away from resistance R7's one end ground connection, electric capacity C2 is close to resistance R7's one end and audible-visual annunciator (7) electric connection.
7. A lighting circuit with a time switch as claimed in claim 4, wherein: a resistor (10) is electrically connected between the first voltage comparator (1) and the driving component (5), one end of the timer (6) far away from the first voltage comparator (1) is electrically connected with a second inverter (11), and the output end of the second inverter (11) is electrically connected with one end of the driving component (5) close to the resistor (10).
8. A lighting circuit with a time switch as claimed in claim 1, wherein: the light-emitting component (2) is formed by connecting a plurality of LED lamps in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022232034.7U CN212785948U (en) | 2020-10-09 | 2020-10-09 | Light-emitting circuit with timing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022232034.7U CN212785948U (en) | 2020-10-09 | 2020-10-09 | Light-emitting circuit with timing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212785948U true CN212785948U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022232034.7U Active CN212785948U (en) | 2020-10-09 | 2020-10-09 | Light-emitting circuit with timing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212785948U (en) |
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- 2020-10-09 CN CN202022232034.7U patent/CN212785948U/en active Active
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