CN203942678U - A kind of circuit structure of touch sensible light modulation LED power supply - Google Patents
A kind of circuit structure of touch sensible light modulation LED power supply Download PDFInfo
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- CN203942678U CN203942678U CN201420261988.2U CN201420261988U CN203942678U CN 203942678 U CN203942678 U CN 203942678U CN 201420261988 U CN201420261988 U CN 201420261988U CN 203942678 U CN203942678 U CN 203942678U
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Abstract
A circuit structure for touch sensible light modulation LED power supply, comprises driving power circuit and induction light adjusting circuit two parts.Driving power circuit, its output cathode end connects the positive pole of LED lamp, and connects induction light adjusting circuit, output voltage signal; Its output negative pole end ground connection; Induction light adjusting circuit, receives the voltage signal from driving power circuit, and changes output current according to voltage signal driven MOS pipe (Q1), thereby regulates the brightness of LED lamp pearl.Adopt after technique scheme, circuit structure provided by the utility model is equipped with simple computer language procedure can be adjusted to different brightness by LED lamp by the mode of touch sensible, meets the needs of the modern life; The design science of circuit structure is reasonable, simple to operation.
Description
Technical field
The utility model belongs to LED illumination Driving technique field, is a kind of circuit structure of touch sensible light modulation LED power supply specifically.
Background technology
Along with scientific and technological progress, the light efficiency of LED is higher, and cost is lower, and pollution-free, meets the theme of national energy-saving environmental protection, is more and more subject to people's favor.And, due to growth in the living standard, people are no longer single light illumination modes to the demand of lighting, and LED bulb lamp, Down lamp are all generally the forms that adopts single brightness at present, along with hommization and the sophistication of house fitting-up, and the raising of modern people to quality of the life, to room lighting even commercial lighting no longer meet the demand of single brightness, thereby pursue can be whenever and wherever possible and simple operations just can regulate the brightness of LED light fixture.
The generation of chip technology makes the control of Circuits System convenient, utilize computer language programme and be burned onto in chip, carrying out different orders has become very ripe technology, and is widely used in the electrical equipment control in electronic circuit and other field.Can realize by switching different circuit for the brightness of LED lamp and the adjusting of colour temperature, those skilled in the art utilize prior art to carry out, in simple language programming burning/recording chip, can realizing the switching to different circuit.And the situation of reality is, computer language procedure is easily worked out, and hardware system often can not meet the demands.
Summary of the invention
For overcoming the above problems, the utility model provides a kind of circuit structure of touch sensible light modulation LED power supply.
The utility model is achieved through the following technical solutions:
A circuit structure for touch sensible light modulation LED power supply, comprising:
Driving power circuit, its output cathode end connects the positive pole of LED lamp, and connects induction light adjusting circuit, output voltage signal; Its output negative pole end ground connection;
Induction light adjusting circuit, receives the voltage signal from driving power circuit, and changes output current according to voltage signal driven MOS pipe (Q1), thereby regulates the brightness of LED lamp pearl.
Described driving power circuit comprises:
Current rectifying and wave filtering circuit (2), comprises rectifier bridge stack (B1) and electrochemical capacitor (CE1);
IC power supply circuits (3) comprise resistance (R1), resistance (R2) and electric capacity (C2), three's series connection;
The former limit of IC feedback circuit (4), comprises chip (U1) and transformer (T1);
Output rectifier and filter (5), comprises fast recovery diode (D2), electric capacity (CE2) and resistance (R7), electric capacity (CE2) and resistance (R7) parallel connection; Fast recovery diode (D2) is connected between the cathode output end and electric capacity (CE2) and parallel circuits one end of resistance (R7) composition of transformer (T1), and connects the positive pole of LED lamp, output voltage signal; The cathode output end of transformer (T1) connects the other end of the parallel circuits of electric capacity (CE2) and resistance (R7) composition, and ground connection.
Further, described driving power circuit is the transformation of the way that the typical application circuit based on PL3536 carries out, and the model of the chip (U1) in the former limit of described IC feedback circuit (4) is PL3536.
Described induction light adjusting circuit comprises:
The power supply circuits (7) of electric energy are provided for responding to light adjusting circuit, comprise three terminal regulator (Q2) and diode (D1), the output of three terminal regulator (Q2) connects the positive terminal of diode (D1), input connects the output cathode end of above-mentioned driving power circuit, and earth terminal ground connection also connects MCU (U2);
The steady source circuit of filtering (6), comprises electric capacity (C4) and resistance (R8), the two parallel connection; Can ensure to supply with the stable of MCU (U2) electric energy;
LED lamp negative pole power supply circuits (9), comprise metal-oxide-semiconductor (Q1) and resistance (R10), one end of resistance (R10) connects the G utmost point of metal-oxide-semiconductor (Q1), and the other end of resistance (R10) connects the S utmost point the ground connection of metal-oxide-semiconductor (Q1); The D end of metal-oxide-semiconductor (Q1) connects the negative pole of LED lamp;
One end of the steady source circuit of filtering (6) connects the negative pole end of diode (D1) in power supply circuits (7), other end ground connection; A signal input part of MCU (U2) connects the induction control end (8) of external induction metal plate; An output contact resistance (R9) of MCU (U2), the other end of resistance (R9) connects the G utmost point of metal-oxide-semiconductor (Q1) in LED lamp negative pole power supply circuits (9); Taking the induction control end 8 that connects induction metal plate as control button, simple in structure easy to use.
Further, described induction light adjusting circuit is the transformation of the way that the typical application circuit based on SJT8003 carries out, and the model of MCU (U2) is SJT8003.
Adopt after technique scheme, the beneficial effects of the utility model are: 1, the circuit structure of the technical program is equipped with simple computer language procedure and can LED lamp be adjusted to different brightness by the mode of touch sensible, meets the needs of the modern life; 2, the design science of circuit structure is reasonable, simple to operation.
Brief description of the drawings
Fig. 1 is circuit structure schematic diagram of the present utility model;
Fig. 2 is the typical application circuit figure of PL3536;
Fig. 3 is the typical application circuit figure of SJT8003.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment: a kind of circuit structure of touch sensible light modulation LED power supply, as shown in the figure, comprises driving power circuit and induction light adjusting circuit two parts.Driving power circuit, its output cathode end connects the positive pole of LED lamp, and connects induction light adjusting circuit, output voltage signal; Its output negative pole end ground connection.Induction light adjusting circuit, receives the voltage signal from driving power circuit, and changes output current according to voltage signal driven MOS pipe (Q1), thereby regulates the brightness of LED lamp pearl.
Driving power circuit comprises current rectifying and wave filtering circuit (2), IC power supply circuits (3), the former limit of IC feedback circuit (4) and output rectifier and filter (5).Current rectifying and wave filtering circuit (2) comprises rectifier bridge stack (B1) and electrochemical capacitor (CE1).IC power supply circuits (3) comprise resistance (R1), resistance (R2) and electric capacity (C2), three's series connection.The former limit of IC feedback circuit (4) comprises chip (U1) and transformer (T1); Wherein, chip (U1) model is PL3536, and the typical application circuit of driving power circuit based on PL3536 is the adaptation of doing on the basis of the typical application circuit of PL3536, and the typical application circuit of PL3536 as shown in Figure 2.Output rectifier and filter (5) comprises fast recovery diode (D2), electric capacity (CE2) and resistance (R7), electric capacity (CE2) and resistance (R7) parallel connection; Fast recovery diode (D2) is connected between the cathode output end and electric capacity (CE2) and parallel circuits one end of resistance (R7) composition of transformer (T1), and connects the positive pole of LED lamp, output voltage signal; The cathode output end of transformer (T1) connects the other end of the parallel circuits of electric capacity (CE2) and resistance (R7) composition, and ground connection.
Induction light adjusting circuit is included as induction light adjusting circuit provides power supply circuits (7), the steady source circuit of filtering (6) and the LED lamp negative pole power supply circuits (9) of electric energy.For induction light adjusting circuit provides the power supply circuits (7) of electric energy to comprise three terminal regulator (Q2) and diode (D1), the output of three terminal regulator (Q2) connects the positive terminal of diode (D1), input connects the output cathode end of above-mentioned driving power circuit, and earth terminal ground connection also connects MCU (U2).The steady source circuit of filtering (6) comprises electric capacity (C4) and resistance (R8), the two parallel connection; Can ensure to supply with the stable of MCU (U2) electric energy.LED lamp negative pole power supply circuits (9) comprise metal-oxide-semiconductor (Q1) and resistance (R10), one end of resistance (R10) connects the G utmost point of metal-oxide-semiconductor (Q1), and the other end of resistance (R10) connects the S utmost point the ground connection of metal-oxide-semiconductor (Q1); The D end of metal-oxide-semiconductor (Q1) connects the negative pole of LED lamp; One end of the steady source circuit of filtering (6) connects negative pole end and the MCU (U2) of diode (D1) in power supply circuits (7), other end ground connection; A signal input part of MCU (U2) connects the induction control end (8) of external induction metal plate; An output contact resistance (R9) of MCU (U2), the other end of resistance (R9) connects the G utmost point of metal-oxide-semiconductor (Q1) in LED lamp negative pole power supply circuits (9), and the model of MCU (U2) is SJT8003; The typical application circuit of induction light adjusting circuit based on SJT8003 is the adaptation of doing on the basis of the typical application circuit of SJT8003; The typical application circuit of SJT8003 as shown in Figure 3; Taking the induction control end 8 that connects induction metal plate as control button, simple in structure easy to use.
The 220V alternating current of K switch 1 (1) the access driving power circuit in closed driving power circuit is transformed into level and smooth and galvanic current through current rectifying and wave filtering circuit (2), IC power supply circuits (3), the former limit of IC feedback circuit (4) and output rectifier and filter (5), and its output cathode end connects the positive pole of LED lamp; Its output negative pole end ground connection; The input of the three terminal regulator (Q2) of the power supply circuits (7) in induction light adjusting circuit connects the output cathode end of driving power circuit, obtain electric energy by input and earth terminal, charge and be that the work of MCU (U2) provides electric energy for the steady source circuit of filtering (6) by earth terminal and the diode (D1) that is connected output.By LED lamp negative pole power supply circuits (9) ground connection and connect the negative pole end of LED lamp pearl and the output cathode end of driving power circuit connects the just very LED lamp pearl power supply of LED lamp, it is lighted.Be the signal of telecommunication that MCU (U2) provides conversion by the induction control end (8) of the external induction metal plate of finger presses, after MCU (U2) receives the signal of telecommunication of conversion, the pwm pulse signal sending by MCU (U2) regulates the G utmost point of metal-oxide-semiconductor (Q1), thereby adjusting electric current, and then the brightness of adjusting LED lamp pearl.
Connecting above circuit and MCU is carried out to simple programming can realize the touch sensible dimming function of LED lamp pearl, is connected mode and the structure of sort circuit and the utility model will be protected, not computer program.The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (5)
1. a circuit structure for touch sensible light modulation LED power supply, is characterized in that:
Comprise:
Driving power circuit, its output cathode end connects the positive pole of LED lamp, and connects induction light adjusting circuit, output voltage signal; Its output negative pole end ground connection;
Induction light adjusting circuit, receives the voltage signal from driving power circuit, and changes output current according to voltage signal driven MOS pipe (Q1).
2. the circuit structure of touch sensible light modulation LED power supply according to claim 1, is characterized in that:
Described driving power circuit comprises:
Current rectifying and wave filtering circuit (2), comprises rectifier bridge stack (B1) and electrochemical capacitor (CE1);
IC power supply circuits (3) comprise resistance (R1), resistance (R2) and electric capacity (C2), three's series connection;
The former limit of IC feedback circuit (4), comprises chip (U1) and transformer (T1);
Output rectifier and filter (5), comprises fast recovery diode (D2), electric capacity (CE2) and resistance (R7), electric capacity (CE2) and resistance (R7) parallel connection; Fast recovery diode (D2) is connected between the cathode output end and electric capacity (CE2) and parallel circuits one end of resistance (R7) composition of transformer (T1), and connects the positive pole of LED lamp, output voltage signal; The cathode output end of transformer (T1) connects the other end of the parallel circuits of electric capacity (CE2) and resistance (R7) composition, and ground connection.
3. the circuit structure of touch sensible light modulation LED power supply according to claim 2, it is characterized in that: described driving power circuit is the transformation of the way that the typical application circuit based on PL3536 carries out, the model of the chip (U1) in the former limit of described IC feedback circuit (4) is PL3536.
4. according to the circuit structure of the touch sensible light modulation LED power supply described in claim 1～3 any one, it is characterized in that:
Described induction light adjusting circuit comprises:
The power supply circuits (7) of electric energy are provided for responding to light adjusting circuit, comprise three terminal regulator (Q2) and diode (D1), the output of three terminal regulator (Q2) connects the positive terminal of diode (D1), input connects the output cathode end of above-mentioned driving power circuit, and earth terminal ground connection also connects MCU (U2);
The steady source circuit of filtering (6), comprises electric capacity (C4) and resistance (R8), the two parallel connection;
LED lamp negative pole power supply circuits (9), comprise metal-oxide-semiconductor (Q1) and resistance (R10), one end of resistance (R10) connects the G utmost point of metal-oxide-semiconductor (Q1), and the other end of resistance (R10) connects the S utmost point the ground connection of metal-oxide-semiconductor (Q1); The D end of metal-oxide-semiconductor (Q1) connects the negative pole of LED lamp;
One end of the steady source circuit of filtering (6) connects the negative pole end of diode (D1) in power supply circuits (7), other end ground connection; A signal input part of MCU (U2) connects the induction control end (8) of external induction metal plate; An output contact resistance (R9) of MCU (U2), the other end of resistance (R9) connects the G utmost point of metal-oxide-semiconductor (Q1) in LED lamp negative pole power supply circuits (9).
5. the circuit structure of touch sensible light modulation LED power supply according to claim 4, is characterized in that: described induction light adjusting circuit is the transformation of the way that the typical application circuit based on SJT8003 carries out, and the model of MCU (U2) is SJT8003.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261988.2U CN203942678U (en) | 2014-05-22 | 2014-05-22 | A kind of circuit structure of touch sensible light modulation LED power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420261988.2U CN203942678U (en) | 2014-05-22 | 2014-05-22 | A kind of circuit structure of touch sensible light modulation LED power supply |
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| CN203942678U true CN203942678U (en) | 2014-11-12 |
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| CN201420261988.2U Expired - Fee Related CN203942678U (en) | 2014-05-22 | 2014-05-22 | A kind of circuit structure of touch sensible light modulation LED power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666744A (en) * | 2017-11-15 | 2018-02-06 | 贵派电器股份有限公司 | LED touch stepless dimming color-temperature regulating driving power and its control method |
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2014
- 2014-05-22 CN CN201420261988.2U patent/CN203942678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666744A (en) * | 2017-11-15 | 2018-02-06 | 贵派电器股份有限公司 | LED touch stepless dimming color-temperature regulating driving power and its control method |
| CN107666744B (en) * | 2017-11-15 | 2024-02-23 | 贵派电器股份有限公司 | LED touch stepless dimming color temperature-adjusting driving power supply and control method thereof |
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| Date | Code | Title | Description |
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| 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: 20141112 Termination date: 20180522 |