CN205213100U - LED drive circuit and use this drive circuit's LED lamps and lanterns - Google Patents
LED drive circuit and use this drive circuit's LED lamps and lanterns Download PDFInfo
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- CN205213100U CN205213100U CN201520884266.7U CN201520884266U CN205213100U CN 205213100 U CN205213100 U CN 205213100U CN 201520884266 U CN201520884266 U CN 201520884266U CN 205213100 U CN205213100 U CN 205213100U
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Abstract
The utility model discloses a LED drive circuit and use this drive circuit's LED lamps and lanterns, LED drive circuit include that rectification voltage stabilizing circuit, NPN control regulating circuit, a plurality of chip control output circuit and a plurality of filter capacitance, chip control output circuit has forward transportation output and negative output end, chip control output circuit detects the DC voltage electric current of rectification voltage stabilizing circuit output, on the adjustment basis of NPN control regulating circuit, and the mode and the control current of a plurality of LED modules of self -adaptation adjustment, it is a plurality of filter capacitance connects respectively a plurality of between chip control output circuit's the forward transportation output and negative output end. Through go up in the control output of every core assembly piece with LED lamp pearl respectively and meet a filter capacitance for LED is luminous in succession, and its availability is up to 90 percent, and under the condition of equal luminous flux demand, the less and cost of lamp pearl quantity is economized.
Description
Technical field
The utility model relates to lighting device, particularly relates to a kind of LED drive circuit and uses the LED lamp of this drive circuit.
Background technology
LED, as a forth generation lighting source, has energy-conservation and life-span advantage significantly.Along with the development of society, the lighting energy consumption problem in daily life becomes increasingly conspicuous, and therefore, has the LED lamp of remarkable power savings advantages more and more by the favor of people.
In LED lamp field, linear circuit is applied in LED lamp, there is compact conformation, feature that cost is low, the linear circuit of prior art divides three tunnels to export by chip controls, export and be directly electrically connected with LED lamp bead, each group LED lamp bead is all discontinuous luminescence, and LED effective rate of utilization is up to 75%.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved in the utility model is, provide a kind of technical problem to be solved of the present utility model to be just to provide a kind of structure is simple, LED continuous luminous effective rate of utilization is high LED drive circuit and use the LED lamp of this drive circuit.
In order to solve the problems of the technologies described above, a kind of LED drive circuit provided by the utility model, for driving multiple LED module, comprise regulator rectifier circuit, NPN regulating and controlling circuit and multiple chip controls output circuit, described regulator rectifier circuit is used for carrying out rectification and filtering to the alternating voltage of input, and output dc voltage and electric current are to NPN regulating and controlling circuit and chip controls output circuit simultaneously; Described NPN regulating and controlling circuit detects the direct voltage that described regulator rectifier circuit exports, and sampled signal is to realize the large loop work adjustment to chip controls output circuit; Described chip controls output circuit has positive output end and negative output terminal, described chip controls output circuit detects the DC voltage and current that regulator rectifier circuit exports, on the adjustment basis of NPN regulating and controlling circuit, the mode of operation of the multiple LED module of self-adaptative adjustment and control electric current; Also comprise: multiple filter capacitor, between the positive output end that multiple described filter capacitor is connected to multiple described chip controls output circuit and negative output terminal.
Wherein in an embodiment, comprise the 1st chip controls output circuit, the 2nd chip controls output circuit, the 3rd chip controls output circuit, the 1st filter capacitor, the 2nd filter capacitor and the 3rd filter capacitor;
1st chip controls output circuit comprises the 1st chip, the VCC of the 1st chip holds the positive pole of connection the 1st filter capacitor, the VT end of the 1st chip connects the positive pole of the 1st filter capacitor by the 1st resistance, the RT end of the 1st chip is by the 2nd grounding through resistance, the VD end of the 1st chip connects the output of described regulator rectifier circuit, and the VS of the 1st chip holds the negative pole of connection the 1st filter capacitor;
2nd chip controls output circuit comprises the 2nd chip, the VCC of the 2nd chip holds the positive pole of connection the 2nd filter capacitor, the VT end of the 2nd chip connects the positive pole of the 2nd filter capacitor by the 15th resistance, the RT end of the 2nd chip is by the 16th grounding through resistance, the VD end of the 2nd chip connects the VS end of described 1st chip, and the VS of the 2nd chip holds the negative pole of connection the 2nd filter capacitor;
3rd chip controls output circuit comprises the 3rd chip, the VCC of the 3rd chip holds the positive pole of connection the 3rd filter capacitor, the VT end of the 3rd chip connects the positive pole of the 3rd filter capacitor by the 18th resistance, the RT end of the 3rd chip is by the 17th grounding through resistance, the VD end of the 3rd chip connects the VS end of described 2nd chip, and the VS of the 3rd chip holds the negative pole of connection the 3rd filter capacitor and described NPN regulating and controlling circuit.
A kind of LED lamp provided by the utility model, comprises above-mentioned LED drive circuit.
The LED drive circuit that the utility model provides and use the LED lamp of this drive circuit, by exporting each with LED lamp bead and connect a filter capacitor often organizing chip controls, make LED continuously luminous, its effective rate of utilization is up to 90%, when equal luminous flux requirements, lamp pearl negligible amounts and cost are comparatively economized.
The beneficial effect that the utility model additional technical feature has will be described in this specification embodiment part.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the LED drive circuit in the utility model embodiment.
Description of reference numerals: 50, LED drive circuit; 51, regulator rectifier circuit; 52, NPN regulating and controlling circuit; 53, the 1st chip controls output circuit; 54, the 2nd chip controls output circuit; 55, the 3rd chip controls output circuit.
Embodiment
And the utility model is described in detail below with reference to the accompanying drawings in conjunction with the embodiments.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
See Fig. 1, LED drive circuit in one of them embodiment of the utility model, for driving three LED modules output1, output2, output3, comprising: regulator rectifier circuit 51, NPN regulating and controlling circuit the 52, the 1st chip controls output circuit 53, the 2nd chip controls output circuit 54, the 3rd chip controls output circuit 55, the 1st filter capacitor C1, the 2nd filter capacitor C2 and the 3rd filter capacitor C3.
Wherein, described regulator rectifier circuit 51 is for carrying out rectification and filtering to the alternating voltage of input, and output dc voltage and electric current are to NPN regulating and controlling circuit the 52 and the 1st chip controls output circuit 53, the 2nd chip controls output circuit 54, the 3rd chip controls output circuit 55 simultaneously.Regulator rectifier circuit 51 in the present embodiment comprises piezo-resistance REV1, rectifier bridge DB1 and filter capacitor CX1, the interchange input two pins of rectifier bridge DB1 is connected with piezo-resistance REV1, and be connected to alternating current input stage, the direct current of rectifier bridge DB1 exports two pins and is connected with filter capacitor CX1, and is connected to late-class circuit.
Described NPN regulating and controlling circuit 52 detects the direct voltage that described regulator rectifier circuit 51 exports, and sampled signal is to realize the large loop work adjustment to chip controls output circuit 53.NPN regulating and controlling circuit 52 in the present embodiment comprises principal current and controls MOS device M1, main regulation control NPN device Q1, principal current sample resistance R13, R14 and resistance, electric capacity, diode component etc. around, principal current controls MOS device M1 and connects chip control circuit by pin MD, pin MS connects current sampling resistor R13, R14, pin MG connects the pin QC of NPN device Q1, is connected to the output DC+ of DB1 by resistance R6 simultaneously; Main regulation controls the MD of the pin QC connection M1 of NPN device Q1, and pin QE contact resistance R10, pin QB connect the MS of M1 by resistance R12.
1st chip controls output circuit 53 comprises the 1st chip U1, the VCC of the 1st chip U1 holds the positive pole of connection the 1st filter capacitor C1, the VT end of the 1st chip U1 connects the positive pole of the 1st filter capacitor C1 by the 1st resistance R1, the RT end of the 1st chip U1 is by the 2nd resistance R2 ground connection, the VD end of the 1st chip U1 connects the output of described regulator rectifier circuit 51, and the VS of the 1st chip U1 holds the negative pole of connection the 1st filter capacitor C1.
2nd chip controls output circuit 54 comprises the 2nd chip U2, the VCC of the 2nd chip U2 holds the positive pole of connection the 2nd filter capacitor C2, the VT end of the 2nd chip U2 connects the positive pole of the 2nd filter capacitor C2 by the 15th resistance R15, the RT end of the 2nd chip U2 is by the 16th resistance R16 ground connection, the VD end of the 2nd chip U2 connects the VS end of described 1st chip U1, and the VS of the 2nd chip U2 holds the negative pole of connection the 2nd filter capacitor C2.
3rd chip controls output circuit 55 comprises the 3rd chip U3, the VCC of the 3rd chip U3 holds the positive pole of connection the 3rd filter capacitor C3, the VT end of the 3rd chip U3 connects the positive pole of the 3rd filter capacitor C3 by the 18th resistance R18, the RT end of the 3rd chip U3 is by the 17th resistance R17 ground connection, the VD end of the 3rd chip U3 connects the VS end of described 2nd chip U2, and the VS of the 3rd chip U3 holds the negative pole of connection the 3rd filter capacitor C2 and described NPN regulating and controlling circuit 52.
The LED drive circuit of the utility model embodiment and use the LED lamp of this drive circuit, by exporting each with LED lamp bead and connect a filter capacitor often organizing chip controls, make LED continuously luminous, its effective rate of utilization is up to 90%, when equal luminous flux requirements, lamp pearl negligible amounts and cost are comparatively economized.
In another embodiment of the utility model, provide a kind of LED lamp (as LED ceiling light, LED down), it comprises above-mentioned LED drive circuit.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (3)
1. a LED drive circuit, for driving multiple LED module, comprise regulator rectifier circuit (51), NPN regulating and controlling circuit (52) and multiple chip controls output circuit (53,54,55), described regulator rectifier circuit (51) is for carrying out rectification and filtering to the alternating voltage of input, and output dc voltage and electric current are to NPN regulating and controlling circuit (52) and chip controls output circuit (53,54,55) simultaneously; Described NPN regulating and controlling circuit (52) is detected the direct voltage that described regulator rectifier circuit (51) exports, and sampled signal is to realize the large loop work adjustment to chip controls output circuit (53,54,55); Described chip controls output circuit (53,54,55) has positive output end and negative output terminal, described chip controls output circuit (53,54,55) detects the DC voltage and current that regulator rectifier circuit (51) exports, on the adjustment basis of NPN regulating and controlling circuit (52), the mode of operation of the multiple LED module of self-adaptative adjustment and control electric current; It is characterized in that, also comprise:
Multiple filter capacitor (C1, C2, C3), between the positive output end that multiple described filter capacitor (C1, C2, C3) is connected to multiple described chip controls output circuit (53,54,55) and negative output terminal.
2. LED drive circuit according to claim 1, it is characterized in that, comprise the 1st chip controls output circuit (53), the 2nd chip controls output circuit (54), the 3rd chip controls output circuit (55), the 1st filter capacitor (C1), the 2nd filter capacitor (C2) and the 3rd filter capacitor (C3);
1st chip controls output circuit (53) comprises the 1st chip (U1), the VCC of the 1st chip (U1) holds the positive pole of connection the 1st filter capacitor (C1), the VT end of the 1st chip (U1) connects the positive pole of the 1st filter capacitor (C1) by the 1st resistance (R1), the RT end of the 1st chip (U1) is by the 2nd resistance (R2) ground connection, the VD end of the 1st chip (U1) connects the output of described regulator rectifier circuit (51), and the VS of the 1st chip (U1) holds the negative pole of connection the 1st filter capacitor (C1);
2nd chip controls output circuit (54) comprises the 2nd chip (U2), the VCC of the 2nd chip (U2) holds the positive pole of connection the 2nd filter capacitor (C2), the VT end of the 2nd chip (U2) connects the positive pole of the 2nd filter capacitor (C2) by the 15th resistance (R15), the RT end of the 2nd chip (U2) is by the 16th resistance (R16) ground connection, the VD end of the 2nd chip (U2) connects the VS end of described 1st chip (U1), and the VS of the 2nd chip (U2) holds the negative pole of connection the 2nd filter capacitor (C2);
3rd chip controls output circuit (55) comprises the 3rd chip (U3), the VCC of the 3rd chip (U3) holds the positive pole of connection the 3rd filter capacitor (C3), the VT end of the 3rd chip (U3) connects the positive pole of the 3rd filter capacitor (C3) by the 18th resistance (R18), the RT end of the 3rd chip (U3) is by the 17th resistance (R17) ground connection, the VD end of the 3rd chip (U3) connects the VS end of described 2nd chip (U2), the VS of the 3rd chip (U3) holds the negative pole of connection the 3rd filter capacitor (C2) and described NPN regulating and controlling circuit (52).
3. a LED lamp, is characterized in that, comprises LED drive circuit as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884266.7U CN205213100U (en) | 2015-11-05 | 2015-11-05 | LED drive circuit and use this drive circuit's LED lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884266.7U CN205213100U (en) | 2015-11-05 | 2015-11-05 | LED drive circuit and use this drive circuit's LED lamps and lanterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205213100U true CN205213100U (en) | 2016-05-04 |
Family
ID=55850784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884266.7U Active CN205213100U (en) | 2015-11-05 | 2015-11-05 | LED drive circuit and use this drive circuit's LED lamps and lanterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205213100U (en) |
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2015
- 2015-11-05 CN CN201520884266.7U patent/CN205213100U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170413 Address after: 519000 Guangdong city of Zhuhai province high tech Zone Tangjiawan town Jinfeng Road No. 1 office building on the third floor Room 301 Patentee after: Guangdong Elec-Tech Lighting Electrical Co. Ltd. Address before: 519000 Zhuhai science and technology innovation coastal area of Guangdong high tech Zone, the second phase of the land in the land of J3 block No. 3 plant Patentee before: GUANGDONG DEHAO LEISHI LIGHTING CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170929 Address after: Zhuhai City, Guangdong province high tech Zone 519000 1 science and Technology Innovation Coast Road No. 1 in a period of 2 -2 plant Patentee after: Yi Xun (Zhuhai) Photoelectric Technology Co., Ltd. Address before: 519000 Guangdong city of Zhuhai province high tech Zone Tangjiawan town Jinfeng Road No. 1 office building on the third floor Room 301 Patentee before: Guangdong Elec-Tech Lighting Electrical Co. Ltd. |
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| TR01 | Transfer of patent right |