CN204598386U - A kind of automatic control circuit for LED illumination - Google Patents
A kind of automatic control circuit for LED illumination Download PDFInfo
- Publication number
- CN204598386U CN204598386U CN201520237720.XU CN201520237720U CN204598386U CN 204598386 U CN204598386 U CN 204598386U CN 201520237720 U CN201520237720 U CN 201520237720U CN 204598386 U CN204598386 U CN 204598386U
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- rectifier circuit
- integrated chip
- automatic control
- control circuit
- output terminal
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Abstract
The utility model discloses a kind of automatic control circuit for LED illumination, comprise rectifier circuit, voltage stabilizing didoe, unidirectional thyristor, LED, voltage detecting integrated chip, slide rheostat and photo resistance, the positive output end of rectifier circuit is connected with LED, LED is connected with the anode of unidirectional thyristor, the negative electrode of unidirectional thyristor is connected with the negative output terminal of rectifier circuit, the trigger end of unidirectional thyristor is connected with the output of voltage detecting integrated chip, the input of voltage detecting integrated chip is connected with one end of photo resistance, the other end of photo resistance is connected with the negative output terminal of rectifier circuit by slide rheostat, one end of photo resistance is also connected with the positive output end of rectifier circuit by resistance.Automatic control circuit for LED illumination of the present utility model, circuit is simple, with low cost, can regulate the sensitivity of photo resistance, have a good application prospect.
Description
Technical field
The utility model relates to a kind of automatic control circuit for LED illumination, belongs to intelligent lighting technical field.
Background technology
Along with the fast development of modern intelligent building, the importance that Intelligent LED lighting controls is more and more obvious, compared with traditional be main lighting control mode by switching value, Non-follow control, there is energy-conserving and environment-protective, safety and stability, use problem flexibly.At present, the photosensitive control circuit in Intelligent LED lighting control circuit, circuit more complicated, cost is higher, inhibits the extensive popularization of Intelligent LED lighting photosensitive control circuit.
Utility model content
The technical problem that the utility model solves is the photosensitive control circuit in Intelligent LED lighting control circuit, circuit more complicated, and cost is higher, inhibits the problem of the extensive popularization of Intelligent LED lighting photosensitive control circuit.
To achieve the above object, the technical scheme that adopts of the utility model is as follows:
A kind of automatic control circuit for LED illumination, it is characterized in that: comprise rectifier circuit VD, voltage stabilizing didoe VD1, unidirectional thyristor VS, LED, voltage detecting integrated chip MAX837, slide rheostat RP and photo resistance RG, the two ends of the external civil power of input of described rectifier circuit VD, the positive output end of described rectifier circuit VD is connected with LED, described LED is connected with the anode of unidirectional thyristor VS, the negative electrode of described unidirectional thyristor VS is connected with the negative output terminal of rectifier circuit VD, the trigger end of described unidirectional thyristor VS is connected with the output of voltage detecting integrated chip MAX837, the output of described voltage detecting integrated chip MAX837 is also connected with the positive pole of light-emitting diode D1, the negative pole of described light-emitting diode D1 is connected with the negative output terminal of rectifier circuit VD by current-limiting resistance R1, described voltage detecting integrated chip MAX837 just, negative voltage input respectively with rectifier circuit VD just, negative output terminal is connected, the input of described voltage detecting integrated chip MAX837 is connected with one end of photo resistance RG, the other end of described photo resistance RG is connected with the negative output terminal of rectifier circuit VD by slide rheostat RP, one end of described photo resistance RG is also connected with the positive output end of rectifier circuit VD by resistance R2, described voltage stabilizing didoe VD1 is just being connected in parallel on rectifier circuit VD, between negative output terminal, the negative pole of described voltage stabilizing didoe VD1 is connected with the positive output end of rectifier circuit VD, the positive pole of described voltage stabilizing didoe VD1 is connected with the negative output terminal of rectifier circuit VD.
Aforesaid a kind of automatic control circuit for LED illumination, it is characterized in that: also comprise filter capacitor C1, described filter capacitor C1 is connected in parallel on the two ends of voltage stabilizing didoe VD1.
Aforesaid a kind of automatic control circuit for LED illumination, is characterized in that: the input of described voltage detecting integrated chip MAX837 is also connected with the negative output terminal of rectifier circuit VD by isolation capacitance C2.
Aforesaid a kind of automatic control circuit for LED illumination, is characterized in that: the model of described photo resistance RG is MG45.
Aforesaid a kind of automatic control circuit for LED illumination, is characterized in that: the conducting voltage of described voltage stabilizing didoe VD1 is 5V.
Aforesaid a kind of automatic control circuit for LED illumination, is characterized in that: an input of described rectifier circuit VD is also connected as fuse F1.
The beneficial effects of the utility model are: the automatic control circuit for LED illumination of the present utility model, circuit is simple, with low cost, can regulate the sensitivity of photo resistance, easy to use, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the automatic control circuit for LED illumination of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Fig. 1, a kind of automatic control circuit for LED illumination, comprise rectifier circuit VD, voltage stabilizing didoe VD1, unidirectional thyristor VS, LED, voltage detecting integrated chip MAX837, slide rheostat RP and photo resistance RG, the two ends of the external civil power of input of rectifier circuit VD, the positive output end of rectifier circuit VD is connected with LED, LED is connected with the anode of unidirectional thyristor VS, the negative electrode of unidirectional thyristor VS is connected with the negative output terminal of rectifier circuit VD, the trigger end of unidirectional thyristor VS is connected with the output of voltage detecting integrated chip MAX837, the output of voltage detecting integrated chip MAX837 is also connected with the positive pole of light-emitting diode D1, the negative pole of light-emitting diode D1 is connected with the negative output terminal of rectifier circuit VD by current-limiting resistance R1, voltage detecting integrated chip MAX837 just, negative voltage input respectively with rectifier circuit VD just, negative output terminal is connected, the input of voltage detecting integrated chip MAX837 is connected with one end of photo resistance RG, the other end of photo resistance RG is connected with the negative output terminal of rectifier circuit VD by slide rheostat RP, one end of photo resistance RG is also connected with the positive output end of rectifier circuit VD by resistance R2, voltage stabilizing didoe VD1 is just being connected in parallel on rectifier circuit VD, between negative output terminal, the negative pole of voltage stabilizing didoe VD1 is connected with the positive output end of rectifier circuit VD, the positive pole of voltage stabilizing didoe VD1 is connected with the negative output terminal of rectifier circuit VD.
Also comprise filter capacitor C1, described filter capacitor C1 is connected in parallel on the two ends of voltage stabilizing didoe VD1.
The input of described voltage detecting integrated chip MAX837 is also connected with the negative output terminal of rectifier circuit VD by isolation capacitance C2, the model of photo resistance RG is MG45, the conducting voltage of voltage stabilizing didoe VD1 is 5V, one input of rectifier circuit VD is also connected as fuse F1, prevent electric current excessive, burn out electronic devices and components, put forward high-tension reliability.
Automatic control circuit for LED illumination of the present utility model, after power on circuitry, through over commutation, filtering, after voltage stabilizing, there is provided the voltage of 5V to voltage detecting integrated chip MAX837, when being operated in daytime, photo resistance RG irradiates by available light and presents low resistance state, the input level of voltage detecting integrated chip MAX837 is lower than valve voltage (1.2V), the output output low level of voltage detecting integrated chip MAX837, unidirectional thyristor VS Triggerless is in off state, LED does not light, voltage detecting integrated chip MAX837 is in monitor state, when the colour of sky is dimmed gradually, the resistance of photo resistance RG is along with becoming large, the input level of voltage detecting integrated chip MAX837 constantly increases, when higher than valve voltage (1.2V), the output of voltage detecting integrated chip MAX837 exports high level, unidirectional thyristor VS receives triggering signal place and carries out conducting state, LED lights, the resistance of slide rheostat RP can also be regulated, the output of adjustment voltage detecting integrated chip MAX837 exports the node of high level, the sensitivity of photo resistance can be regulated, easy to use, circuit is simple, with low cost, have a good application prospect.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the automatic control circuit for LED illumination, it is characterized in that: comprise rectifier circuit VD, voltage stabilizing didoe VD1, unidirectional thyristor VS, LED, voltage detecting integrated chip MAX837, slide rheostat RP and photo resistance RG, the two ends of the external civil power of input of described rectifier circuit VD, the positive output end of described rectifier circuit VD is connected with LED, described LED is connected with the anode of unidirectional thyristor VS, the negative electrode of described unidirectional thyristor VS is connected with the negative output terminal of rectifier circuit VD, the trigger end of described unidirectional thyristor VS is connected with the output of voltage detecting integrated chip MAX837, the output of described voltage detecting integrated chip MAX837 is also connected with the positive pole of light-emitting diode D1, the negative pole of described light-emitting diode D1 is connected with the negative output terminal of rectifier circuit VD by current-limiting resistance R1, described voltage detecting integrated chip MAX837 just, negative voltage input respectively with rectifier circuit VD just, negative output terminal is connected, the input of described voltage detecting integrated chip MAX837 is connected with one end of photo resistance RG, the other end of described photo resistance RG is connected with the negative output terminal of rectifier circuit VD by slide rheostat RP, one end of described photo resistance RG is also connected with the positive output end of rectifier circuit VD by resistance R2, described voltage stabilizing didoe VD1 is just being connected in parallel on rectifier circuit VD, between negative output terminal, the negative pole of described voltage stabilizing didoe VD1 is connected with the positive output end of rectifier circuit VD, the positive pole of described voltage stabilizing didoe VD1 is connected with the negative output terminal of rectifier circuit VD.
2. a kind of automatic control circuit for LED illumination according to claim 1, it is characterized in that: also comprise filter capacitor C1, described filter capacitor C1 is connected in parallel on the two ends of voltage stabilizing didoe VD1.
3. a kind of automatic control circuit for LED illumination according to claim 1, is characterized in that: the input of described voltage detecting integrated chip MAX837 is also connected with the negative output terminal of rectifier circuit VD by isolation capacitance C2.
4. a kind of automatic control circuit for LED illumination according to claim 1, is characterized in that: the model of described photo resistance RG is MG45.
5. a kind of automatic control circuit for LED illumination according to claim 1, is characterized in that: the conducting voltage of described voltage stabilizing didoe VD1 is 5V.
6. a kind of automatic control circuit for LED illumination according to claim 1, is characterized in that: an input of described rectifier circuit VD is also connected as fuse F1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237720.XU CN204598386U (en) | 2015-04-20 | 2015-04-20 | A kind of automatic control circuit for LED illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237720.XU CN204598386U (en) | 2015-04-20 | 2015-04-20 | A kind of automatic control circuit for LED illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204598386U true CN204598386U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237720.XU Expired - Fee Related CN204598386U (en) | 2015-04-20 | 2015-04-20 | A kind of automatic control circuit for LED illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204598386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780685A (en) * | 2015-04-20 | 2015-07-15 | 苏州汉瑞森光电科技有限公司 | Automatic control circuit for illumination of LED lamp |
-
2015
- 2015-04-20 CN CN201520237720.XU patent/CN204598386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104780685A (en) * | 2015-04-20 | 2015-07-15 | 苏州汉瑞森光电科技有限公司 | Automatic control circuit for illumination of LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20170420 |