CN210986501U - Wide-voltage working linear L ED lamp circuit with light control function - Google Patents
Wide-voltage working linear L ED lamp circuit with light control function Download PDFInfo
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- CN210986501U CN210986501U CN201921304839.9U CN201921304839U CN210986501U CN 210986501 U CN210986501 U CN 210986501U CN 201921304839 U CN201921304839 U CN 201921304839U CN 210986501 U CN210986501 U CN 210986501U
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Abstract
The utility model discloses a take linear L ED lamp circuit of wide voltage work of light-operated function, including rectifier circuit, first L ED lighting circuit, second L ED lighting circuit, linear constant current circuit, voltage stabilizing circuit, light intensity detection circuit and electronic switch, rectifier circuit converts commercial power alternating voltage into DC voltage, voltage stabilizing circuit is the power supply of light intensity detection circuit, light intensity detection circuit detects ambient light intensity and converts ambient light intensity into corresponding DC voltage output, switching on and closing of light intensity detection circuit control electronic switch, when electronic switch ends, first L ED lighting circuit of linear constant current circuit drive and second L ED lighting circuit all do not give out light, switch on when electronic switch, according to alternating voltage's fluctuation, first L ED lighting circuit and second L ED lighting circuit are luminous simultaneously or first L ED lighting circuit is luminous alone, the advantage is under the lower condition of commercial power voltage, also can the light, can be in the great use of commercial power voltage fluctuation.
Description
Technical Field
The utility model relates to a linear L ED lamp circuit especially relates to a take linear L ED lamp circuit of light-operated wide voltage work.
Background
L ED lamp has obtained extensive application owing to the advantage of energy-concerving and environment-protective, with the popularization of energy-conserving intelligent concept, L ED lamp with various functions also appears, light-operated L ED lamp can light automatically when outside illumination is less, and when outside illumination is more bright, can turn off the lamp automatically again, and energy-concerving and environment-protective, it is convenient to use.
However, the linear L ED lamp has the inherent disadvantage that the linear L ED lamp cannot adapt to a power grid with large voltage fluctuation, and particularly, the linear L ED lamp cannot be lighted when the mains voltage is too low.
Disclosure of Invention
The utility model aims to solve the technical problem that a take linear L ED lamp circuit of wide voltage work of light-operated function is provided, this linear L ED lamp circuit also can light under the lower condition of mains voltage, can use in the great area of mains voltage fluctuation.
The utility model provides a take linear L ED lamp circuit of wide voltage work of light control function, including rectifier circuit, first L ED luminescent circuit, second L ED luminescent circuit, linear constant current circuit, voltage stabilizing circuit, light intensity detection circuit and electronic switch, rectifier circuit be used for getting into commercial power alternating voltage and convert commercial power alternating voltage into direct current voltage and output respectively give first L ED luminescent circuit with voltage stabilizing circuit, first L ED luminescent circuit with second 5393 ED luminescent circuit establish ties, voltage stabilizing circuit be used for the power supply of light intensity detection circuit, light intensity detection circuit be used for detecting ambient light intensity and convert ambient light intensity into corresponding direct current voltage output, ambient light intensity is stronger, the smaller direct current voltage that corresponds is the ambient light intensity, be provided with the voltage threshold in the electronic switch, when the direct current voltage that light intensity detection circuit output is less than or equal to the voltage threshold, electronic switch cut off, linear L be used for driving first 634 luminous circuit and second luminous circuit be used for the sum of the linear light intensity detection circuit that the luminous voltage is greater than or equal to the luminous voltage threshold when the luminous voltage of second ED circuit is greater than the luminous voltage that the luminous circuit is greater than the luminous voltage of second ED circuit is used for luminous circuit and luminous voltage of luminous circuit, if the luminous voltage is greater than the sum of the luminous voltage of the luminous circuit is greater than or equal to luminous voltage of luminous circuit is greater than the luminous voltage of luminous circuit and linear 6342 luminous circuit, luminous circuit and linear 6342 luminous circuit.
When the linear voltage between the first and second light-emitting diodes ED and ED 7 is equal to or higher than the light intensity threshold voltage of the linear light-emitting diode ED 58, the light intensity detection circuit has an anode, a cathode and an output terminal, the electronic switch has a control terminal, an anode and a cathode, the live wire input terminal of the rectifying circuit is connected with the live wire of the commercial power, the neutral wire input terminal of the rectifying circuit is connected with the zero line of the commercial power, the output terminal of the rectifying circuit is connected with the anode of the first light-emitting diode ED L and the input terminal of the voltage stabilizing circuit, the cathode of the first L1 light-emitting diode and the anode of the second L2 light-emitting diode are connected with the first output terminal of the linear constant current circuit, the cathode of the second L light-emitting diode is connected with the second output terminal of the linear constant current control circuit, the light intensity threshold voltage of the linear light-emitting diode ED is equal to or higher than the light intensity threshold voltage of the linear light-emitting diode ED2 when the linear light-emitting diode ED is connected between the first light-emitting diode ED and the linear light-emitting diode ED 19, the linear light-emitting diode is equal to or equal to the light intensity threshold voltage of the linear light-emitting diode, the linear light-emitting diode-emitting diode-emitting.
The voltage stabilizing circuit comprises a first resistor, a first capacitor and a first diode, wherein the first capacitor is an electrolytic capacitor, the first diode is a voltage stabilizing diode, one end of the first resistor is an input end of the voltage stabilizing circuit, the other end of the first resistor, an anode of the first capacitor and a cathode of the first diode are connected, a connecting end of the first diode is an output end of the voltage stabilizing circuit, a cathode of the first capacitor and an anode of the first diode are connected, and a connecting end of the first capacitor is a grounding end of the voltage stabilizing circuit.
The light intensity detection circuit comprises a second resistor, a second diode, a first phototriode, a third resistor and a second capacitor, wherein the second diode is a rectifier diode, one end of the second resistor is the anode of the light intensity detection circuit, one end of the second resistor is the collector of the first phototriode, and the anode of the second diode is connected, the cathode of the second diode, one end of the third resistor and one end of the second capacitor are connected, and the connecting end of the third resistor and the connecting end of the second capacitor are connected, the output end of the light intensity detection circuit is connected, the emitting electrode of the first phototriode, the other end of the third resistor and the other end of the second capacitor are connected, and the connecting end of the third resistor and the connecting end of the second capacitor are connected, and the negative electrode of the light intensity detection circuit is connected.
The electronic switch is realized by adopting an NMOS (N-channel metal oxide semiconductor) tube, the grid electrode of the NMOS tube is the control end of the electronic switch, the drain electrode of the NMOS tube is the anode of the electronic switch, the source electrode of the NMOS tube is the cathode of the electronic switch, and the voltage threshold is the grid opening threshold voltage of the NMOS tube.
The linear constant current circuit comprises a first chip and a fourth resistor, the model of the first chip is SM2086, the 8 th pin of the first chip is the first output end of the linear constant current circuit, the 5 th pin of the first chip is the second output end of the linear constant current circuit, the 1 st pin of the first chip is connected with one end of the fourth resistor, the other end of the fourth resistor is the current regulating end of the linear constant current circuit, the 4 th pin of the first chip is the grounding end of the linear constant current circuit, the fourth resistor is used for setting the current magnitude when the first output end and the second output end of the linear constant current circuit are conducted, and when current flows through the second output end of the linear constant current circuit, the first output end of the linear constant current circuit is cut off. The circuit has simple structure and low cost.
The linear constant current circuit further comprises a second chip and a fifth resistor, the second chip is realized by adopting a common three-terminal linear constant current circuit chip, the 1 st pin of the second chip is connected with the 5 th pin of the first chip, the 2 nd pin of the second chip is connected with the 4 th pin of the first chip, the 3 rd pin of the second chip is connected with one end of the fifth resistor, and the other end of the fifth resistor is connected with the other end of the fourth resistor. The circuit is capable of power spreading.
Rectifier circuit adopt full-bridge rectifier bridge to pile up and realize, full-bridge rectifier bridge pile's the 1 st foot do rectifier circuit's live wire input end, full-bridge rectifier bridge pile's the 3 rd foot do rectifier circuit's zero line input end, full-bridge rectifier bridge pile's the 2 nd foot do rectifier circuit's output, full-bridge rectifier bridge pile's the 4 th foot do rectifier circuit's earthing terminal.
Compared with the prior art, the utility model has the advantages of pass through rectifier circuit, first L ED lighting circuit, second L ED lighting circuit, linear constant current circuit, voltage stabilizing circuit, linear L ED lamp circuit is found to light intensity detection circuit and electronic switch, rectifier circuit inserts commercial power alternating voltage and converts commercial power alternating voltage into direct current voltage and exports for first L ED lighting circuit and voltage stabilizing circuit respectively, first L ED lighting circuit and second L ED lighting circuit are established ties, voltage stabilizing circuit is the power supply of light intensity detection circuit, light intensity detection circuit detects ambient light intensity and converts ambient light intensity into corresponding direct current voltage output, ambient light intensity is stronger more, corresponding direct current voltage is less, be provided with the voltage threshold value in the electronic switch, when the direct current voltage less than or equal to voltage threshold value of light intensity detection circuit output, electronic switch ends, linear constant current circuit drives first L ED lighting circuit and second L ED lighting circuit and all luminous, when the direct current voltage of light intensity detection circuit output is greater than the voltage threshold value, electronic switch switches on, if the direct current voltage of rectifier circuit output is greater than or equal to first L ED lighting circuit and second L ED lighting circuit, if the linear luminous circuit is greater than or equal to the sum of the linear luminous voltage of the luminous circuit and the luminous circuit of the luminous voltage of the luminous circuit, when the luminous voltage of the luminous circuit is greater than or equal to be greater than or equal to the luminous voltage of the luminous circuit, the luminous.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a circuit diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, a linear L ED lamp circuit with a light control function and operating at a wide voltage is characterized by comprising a rectifying circuit, a first L ED light emitting circuit, a second L ED light emitting circuit, a linear constant current circuit, a voltage stabilizing circuit, a light intensity detection circuit and an electronic switch, wherein the rectifying circuit is used for accessing a mains supply alternating current voltage and converting the mains supply alternating current voltage into a direct current voltage to be respectively output to the first L ED light emitting circuit and the voltage stabilizing circuit, the first L ED light emitting circuit and the second L ED light emitting circuit are connected in series with the voltage stabilizing circuit and used for supplying power to the light intensity detection circuit, the light intensity detection circuit is used for detecting ambient light intensity and converting the ambient light intensity into corresponding direct current voltages to be output, the ambient light intensity is stronger, the corresponding direct current voltage is smaller, a voltage threshold is arranged in the electronic switch, when the direct current voltage output by the light intensity detection circuit is smaller than or equal to the voltage threshold, the electronic switch is used for stopping the linear L ED light emitting circuit and the second 632 ED light emitting circuit from emitting circuit, when the direct current voltage output by the light intensity detection circuit is smaller than or equal to the voltage threshold, when the direct current voltage output by the light intensity detection circuit is larger than the voltage detection circuit, the linear L ED light emitting circuit, the linear light emitting circuit is larger than the voltage threshold, the sum of the linear light emitting circuit, the linear light emitting circuit is larger than the linear light emitting circuit, the linear circuit is used.
As shown in fig. 1, in this embodiment, the rectifying circuit has a live wire input terminal, a zero line input terminal, an output terminal and a ground terminal, the first L ED light emitting circuit and the second L ED light emitting circuit each have a positive electrode and a negative electrode, the linear constant current circuit has a first output terminal, a second output terminal, a current regulating terminal and a ground terminal, the voltage stabilizing circuit has an input terminal, an output terminal and a ground terminal, the light intensity detecting circuit has a positive electrode, a negative electrode and an output terminal, the electronic switch has a control terminal, a positive electrode and a negative electrode, the live wire input terminal of the rectifying circuit is connected to the live wire of the commercial power, the zero line input terminal of the rectifying circuit is connected to the zero line of the commercial power, the output terminal of the rectifying circuit is connected to the positive electrode of the first L ED light emitting circuit and the input terminal of the voltage stabilizing circuit, the negative electrode of the first L ED light emitting circuit and the positive electrode of the second L ED light emitting circuit are connected to the first output terminal of the linear constant current circuit, the negative electrode of the second L ED light emitting circuit and the second output terminal of the linear constant current circuit, the output terminal of the voltage stabilizing circuit is connected to the output terminal of the light intensity detecting circuit.
As shown in fig. 2, in the present embodiment, the voltage regulator circuit includes a first resistor R1, a first capacitor C1 and a first diode D1, the first capacitor C1 is an electrolytic capacitor, the first diode D1 is a zener diode, one end of the first resistor R1 is an input end of the voltage regulator circuit, the other end of the first resistor R1, the anode of the first capacitor C1 and the cathode of the first diode D1 are connected, and a connection end thereof is an output end of the voltage regulator circuit, the cathode of the first capacitor C1 and the anode of the first diode D1 are connected, and a connection end thereof is a ground end of the voltage regulator circuit.
As shown in fig. 2, in this embodiment, the light intensity detecting circuit includes a second resistor R2, a second diode D2, a first phototransistor Q1, a third resistor R3 and a second capacitor C2, the second diode D2 is a rectifying diode, one end of a second resistor R2 is an anode of the light intensity detecting circuit, one end of the second resistor R2, a collector of the first phototransistor Q1 and an anode of a second diode D2 are connected, a cathode of the second diode D2, one end of a third resistor R3 and one end of the second capacitor C2 are connected, and a connection end thereof is an output end of the light intensity detecting circuit, an emitter of the first phototransistor Q1, another end of the third resistor R3 and another end of the second capacitor C2 are connected, and a connection end thereof is a cathode of the light intensity detecting circuit.
As shown in fig. 2, in this embodiment, the electronic switch is implemented by using an NMOS transistor M1, a gate of the NMOS transistor M1 is a control terminal of the electronic switch, a drain of the NMOS transistor M1 is an anode of the electronic switch, a source of the NMOS transistor M1 is a cathode of the electronic switch, and a voltage threshold is a gate turn-on threshold voltage of the NMOS transistor M1.
As shown in fig. 2, in this embodiment, the linear constant current circuit includes a first chip U1 and a fourth resistor R4 of type SM2086, a pin 8 of the first chip U1 is a first output terminal of the linear constant current circuit, a pin 5 of the first chip U1 is a second output terminal of the linear constant current circuit, a pin 1 of the first chip U1 is connected to one end of the fourth resistor R4, the other end of the fourth resistor R4 is a current regulation terminal of the linear constant current circuit, a pin 4 of the first chip U1 is a ground terminal of the linear constant current circuit, and the fourth resistor R4 is used to set a magnitude of a current when the first output terminal and the second output terminal of the linear constant current circuit are turned on, and to make the second output terminal of the linear constant current circuit have a current flowing through, the first output terminal of the linear constant current circuit is turned off.
As shown in fig. 2, in this embodiment, the linear constant current circuit further includes a second chip U2 and a fifth resistor R5, the second chip U2 is implemented by a common three-terminal linear constant current circuit chip, a 1 st pin of the second chip U2 is connected to a 5 th pin of the first chip U1, a 2 nd pin of the second chip U2 is connected to a 4 th pin of the first chip U1, a 3 rd pin of the second chip U2 is connected to one end of the fifth resistor R5, and the other end of the fifth resistor R5 is connected to the other end of the fourth resistor R4.
As shown in fig. 2, in this embodiment, the rectifying circuit is implemented by using a full-bridge rectifier Db, the 1 st pin of the full-bridge rectifier Db is the live wire input end of the rectifying circuit, the 3 rd pin of the full-bridge rectifier Db is the zero line input end of the rectifying circuit, the 2 nd pin of the full-bridge rectifier Db is the output end of the rectifying circuit, and the 4 th pin of the full-bridge rectifier Db is the ground end of the rectifying circuit.
As shown in fig. 2, in this embodiment, the first L ED light emitting circuit is formed by connecting j L ED light emitting diodes (L ED1-1 to L ED1-j) in series, j is an integer greater than or equal to 1, and the second L ED light emitting circuit is formed by connecting k L ED light emitting diodes (L ED2-1 to L ED2-k) in series, k is an integer greater than or equal to 1.
Claims (8)
1. A linear L ED lamp circuit with a light control function and working at a wide voltage is characterized by comprising a rectifying circuit, a first L ED lighting circuit, a second L ED lighting circuit, a linear constant current circuit, a voltage stabilizing circuit, a light intensity detection circuit and an electronic switch, wherein the rectifying circuit is used for receiving mains supply alternating current voltage and converting the mains supply alternating current voltage into direct current voltages to be respectively output to the first L ED lighting circuit and the voltage stabilizing circuit, the first L ED lighting circuit and the second L ED lighting circuit are connected in series, the voltage stabilizing circuit is used for supplying power to the light intensity detection circuit, the light intensity detection circuit is used for detecting ambient light intensity and converting the ambient light intensity into corresponding direct current voltages to be output, the ambient light intensity is stronger, the corresponding direct current voltage is smaller, a voltage threshold value is arranged in the electronic switch, when the direct current voltage output by the light intensity detection circuit is smaller than or equal to the voltage threshold value, the electronic switch is cut off when the direct current voltage output by the light intensity detection circuit is smaller than or equal to the voltage threshold value, the linear L ED lighting circuit and the second 635 ED lighting circuit is used for driving the first LED lighting circuit and the second LED lighting circuit is smaller than the voltage threshold value of the linear switch, and the linear L, if the light intensity detection circuit is not smaller than the sum of the first LED lighting circuit, the second LED lighting circuit is used for driving circuit, the linear L, and the second LED lighting circuit is used for driving circuit when the linear LED lighting circuit is used for driving voltage of the first LED lighting circuit, the linear 634 ED lighting circuit, the linear switch is equal to be equal to the sum of the second LED lighting circuit, and the linear switch, and the second LED lighting circuit, and if the linear switch is equal to be equal.
2. The wide voltage linear L ED lamp circuit with light control function according to claim 1, wherein the rectifying circuit has a live input, a neutral input, an output and a ground, the first L ED lighting circuit and the second L ED lighting circuit each have a positive terminal and a negative terminal, the linear constant current circuit has a first output, a second output, a current regulating terminal and a ground, the voltage regulator has an input, an output and a ground, the light intensity detecting circuit has a positive terminal, a negative terminal and an output, the electronic switch has a control terminal, a positive terminal and a negative terminal, the live input of the rectifying circuit is connected to the live terminal of the commercial power, the neutral input of the rectifying circuit is connected to the neutral terminal of the commercial power, the output of the rectifying circuit is connected to the positive terminal of the first L ED lighting circuit and the input of the voltage regulator, the negative terminal of the first L ED lighting circuit and the positive terminal of the second L ED lighting circuit are connected to the first output of the linear constant current circuit, the second L of the light intensity detecting circuit is connected to the negative terminal of the linear constant current regulating circuit, the negative terminal of the linear constant current detecting circuit is connected to the ground, and the negative terminal of the linear constant current detecting circuit is connected to the ground.
3. The linear L ED lamp circuit with light control function and wide voltage range operation according to claim 2, wherein the regulator circuit includes a first resistor, a first capacitor and a first diode, the first capacitor is an electrolytic capacitor, the first diode is a zener diode, one end of the first resistor is the input end of the regulator circuit, the other end of the first resistor, the anode of the first capacitor and the cathode of the first diode are connected and the connection end is the output end of the regulator circuit, the cathode of the first capacitor and the anode of the first diode are connected and the connection end is the ground end of the regulator circuit.
4. The linear L ED lamp circuit with light control function and wide voltage range operation of claim 2, wherein the light intensity detection circuit comprises a second resistor, a second diode, a first photo-transistor, a third resistor and a second capacitor, the second diode is a rectifier diode, one end of the second resistor is the positive electrode of the light intensity detection circuit, one end of the second resistor, the collector of the first photo-transistor and the positive electrode of the second diode are connected, the negative electrode of the second diode, one end of the third resistor and one end of the second capacitor are connected, and the connection end is the output end of the light intensity detection circuit, the emitter of the first photo-transistor, the other end of the third resistor and the other end of the second capacitor are connected, and the connection end is the negative electrode of the light intensity detection circuit.
5. The linear L ED lamp circuit with light control function and wide voltage operation according to claim 2, wherein the electronic switch is implemented by an NMOS transistor, a gate of the NMOS transistor is a control terminal of the electronic switch, a drain of the NMOS transistor is an anode of the electronic switch, a source of the NMOS transistor is a cathode of the electronic switch, and the voltage threshold is a gate turn-on threshold voltage of the NMOS transistor.
6. The linear L ED lamp circuit with light control function and wide voltage range operation according to claim 2, wherein the linear constant current circuit includes a first chip and a fourth resistor of type SM2086, a pin 8 of the first chip is a first output terminal of the linear constant current circuit, a pin 5 of the first chip is a second output terminal of the linear constant current circuit, a pin 1 of the first chip is connected with one end of the fourth resistor, the other end of the fourth resistor is a current regulation terminal of the linear constant current circuit, a pin 4 of the first chip is a ground terminal of the linear constant current circuit, and the fourth resistor is used to set the magnitude of the current when the first output terminal and the second output terminal of the linear constant current circuit are turned on and to turn off the first output terminal of the linear constant current circuit when the second output terminal of the linear constant current circuit has the current.
7. The linear L ED lamp circuit with light control function and wide voltage operation according to claim 6, wherein the linear constant current circuit further includes a second chip and a fifth resistor, the second chip is implemented by a common three-terminal linear constant current circuit chip, pin 1 of the second chip is connected to pin 5 of the first chip, pin 2 of the second chip is connected to pin 4 of the first chip, pin 3 of the second chip is connected to one end of the fifth resistor, and the other end of the fifth resistor is connected to the other end of the fourth resistor.
8. The linear L ED lamp circuit with light control function and wide voltage range for operation as claimed in claim 2, wherein the rectification circuit is implemented by a full bridge rectifier, the 1 st pin of the full bridge rectifier is the live wire input terminal of the rectification circuit, the 3 rd pin of the full bridge rectifier is the zero wire input terminal of the rectification circuit, the 2 nd pin of the full bridge rectifier is the output terminal of the rectification circuit, and the 4 th pin of the full bridge rectifier is the ground terminal of the rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921304839.9U CN210986501U (en) | 2019-08-12 | 2019-08-12 | Wide-voltage working linear L ED lamp circuit with light control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921304839.9U CN210986501U (en) | 2019-08-12 | 2019-08-12 | Wide-voltage working linear L ED lamp circuit with light control function |
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| Publication Number | Publication Date |
|---|---|
| CN210986501U true CN210986501U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921304839.9U Active CN210986501U (en) | 2019-08-12 | 2019-08-12 | Wide-voltage working linear L ED lamp circuit with light control function |
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| Country | Link |
|---|---|
| CN (1) | CN210986501U (en) |
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- 2019-08-12 CN CN201921304839.9U patent/CN210986501U/en active Active
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