CN202310211U - Series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply - Google Patents
Series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply Download PDFInfo
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- CN202310211U CN202310211U CN2011204098674U CN201120409867U CN202310211U CN 202310211 U CN202310211 U CN 202310211U CN 2011204098674 U CN2011204098674 U CN 2011204098674U CN 201120409867 U CN201120409867 U CN 201120409867U CN 202310211 U CN202310211 U CN 202310211U
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Abstract
The utility model relates to a constant current driving circuit, and in particular relates to a series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply, which is characterized by comprising an alternating current input overvoltage overcurrent protection circuit, a voltage-multiplying rectification circuit, a voltage regulation constant current driving circuit and a current feedback control circuit, wherein the alternating current input overvoltage overcurrent protection circuit is connected with the voltage-multiplying rectification circuit; the voltage-multiplying rectification circuit is connected with the voltage regulation constant current driving circuit; the voltage regulation constant current driving circuit is respectively connected with LED arrays in series and the current feedback control circuit; and the LED arrays in series are connected with the current feedback control circuit. The series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply provided by the utility model directly operates under 220V alternating current input voltage, is suitable for the combination application of any LED illumination fixture, can be supplied with electricity by 220V mains supply, and is a high-voltage constant current driving circuit, and compared with the low-voltage constant current driving technology which is widely applied to the existing LED illumination, the AC/DC (alternating current/direct current) power supply part is reduced, and the aim that the cost is lowered is achieved.
Description
Technical field
The utility model relates to a kind of constant-current drive circuit, is specially a kind of series LED constant-current drive circuit of voltage multiplying rectifier high voltage supply.
Background technology
The low pressure constant-current drive technology of the extensive use of LED illumination at present all need increase the AC/DC module; Can not directly directly drive with the 220V civil power; So just increased the cost of LED lighting; Design a kind of can being very important by on-line operation series LED constant-current drive circuit of voltage multiplying rectifier high voltage supply under the 220V AC-input voltage increasingly high today energy-conservation the requirement.
The utility model content
To there being the high problem of cost in the prior art, the purpose of the utility model is to provide a kind of technical scheme of series LED constant-current drive circuit of the voltage multiplying rectifier high voltage supply that greatly reduces cost.
The series LED constant-current drive circuit of described voltage multiplying rectifier high voltage supply; It is characterized in that comprising exchanging and import over-voltage over-current protection circuit, voltage doubling rectifing circuit, voltage adjustment constant-current drive circuit, Current Feedback Control circuit; Exchanging the input over-voltage over-current protection circuit links to each other with voltage doubling rectifing circuit; Voltage doubling rectifing circuit links to each other with voltage adjustment constant-current drive circuit; Voltage adjustment constant-current drive circuit links to each other with series LED array, Current Feedback Control circuit respectively, and the series LED array links to each other with the Current Feedback Control circuit; Described interchange input over-voltage over-current protection circuit is made up of the piezo-resistance MY of overcurrent protection resettable fuse WHPTC and overvoltage protection; Voltage doubling rectifing circuit is made up of diode D1, diode D2 and capacitor C 1, capacitor C 2; Voltage adjustment constant-current drive circuit is made up of resistance R 1, resistance R 2 and triode Q1, capacitor C 3, current regulator diode D3; The series LED array is made up of 80 LED that series connection is provided with at least, and the Current Feedback Control circuit is made up of resistance R 3, resistance R 4 and triode Q2.
The series LED constant-current drive circuit of described voltage multiplying rectifier high voltage supply; It is characterized in that described overcurrent protection resettable fuse WHPTC one end links to each other with 220V alternating current one end; The other end of overcurrent protection resettable fuse WHPTC links to each other with the positive pole of piezo-resistance MY one end, diode D1, the negative pole of diode D2; The negative pole of diode D1 links to each other with an end of capacitor C 1, an end of resistance R 1, the collector electrode of triode Q1; The other end of piezo-resistance MY links to each other with the 220V alternating current other end, capacitor C 1 other end, capacitor C 2 one ends; The positive pole of diode D2 links to each other with the other end of capacitor C 2, the collector electrode of triode Q2, the negative pole of capacitor C 3, an end of resistance R 4, and the other end of resistance R 1 links to each other with the emitter of triode Q2, an end of resistance R 2, and the other end of resistance R 2 links to each other with the base stage of triode Q1; The emitter of triode Q1 links to each other with the positive pole of capacitor C 3, the input of current regulator diode D3; The base stage of triode Q2 links to each other with an end of resistance R 3, and the other end of resistance R 3 links to each other with the other end of resistance R 4, the negative pole of series LED array, and the positive pole of series LED array links to each other with the output of current regulator diode D3.
The utility model on-line operation is under the 220V AC-input voltage, and circuit is made up of parts such as exchanging input over-voltage over-current protection circuit, voltage doubling rectifing circuit, voltage adjustment constant-current drive circuit, Current Feedback Control circuit; This circuit is suitable for the Combination application of any LED lighting; Can directly supply power by civil power 220V; Be the circuit that a kind of high voltage and constant current drives, reduced the power unit of AC/DC, reach the purpose that has reduced cost than the low pressure constant-current drive technology of present LED illumination extensive use.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model;
Among the figure: 1-exchanges the input over-voltage over-current protection circuit, 2-voltage doubling rectifing circuit, 3-voltage adjustment constant-current drive circuit, 4-series LED array, 5-Current Feedback Control circuit.
Embodiment
Below in conjunction with Figure of description the utility model is further specified:
The series LED constant-current drive circuit of voltage multiplying rectifier high voltage supply; Comprise and exchange input over-voltage over-current protection circuit 1, voltage doubling rectifing circuit 2, voltage adjustment constant-current drive circuit 3, Current Feedback Control circuit 5; Exchanging input over-voltage over-current protection circuit 1 links to each other with voltage doubling rectifing circuit 2; Voltage doubling rectifing circuit 2 links to each other with voltage adjustment constant-current drive circuit 3; Voltage adjustment constant-current drive circuit 3 links to each other with series LED array 4, Current Feedback Control circuit 5 respectively, and series LED array 4 links to each other with Current Feedback Control circuit 5.Wherein, Interchange input over-voltage over-current protection circuit 1 is made up of the piezo-resistance MY of overcurrent protection resettable fuse WHPTC and overvoltage protection; Voltage doubling rectifing circuit 2 is made up of diode D1, diode D2 and capacitor C 1, capacitor C 2; Voltage adjustment constant-current drive circuit 3 is made up of resistance R 1, resistance R 2 and triode Q1, capacitor C 3, current regulator diode D3; Series LED array 4 is made up of the LED of n at least that series connection is provided with, n >=80, and Current Feedback Control circuit 5 is made up of resistance R 3, resistance R 4 and triode Q2.
The syndeton of circuit: overcurrent protection resettable fuse WHPTC one end is imported an end with the 220V alternating current and is linked to each other; The other end of overcurrent protection resettable fuse WHPTC links to each other with the positive pole of piezo-resistance MY one end, diode D1, the negative pole of diode D2; The negative pole of diode D1 links to each other with an end of capacitor C 1, an end of resistance R 1, the collector electrode of triode Q1; The other end of piezo-resistance MY links to each other with the 220V alternating current input other end, capacitor C 1 other end, capacitor C 2 one ends; The positive pole of diode D2 links to each other with the other end of capacitor C 2, the collector electrode of triode Q2, the negative pole of capacitor C 3, an end of resistance R 4; The other end of resistance R 1 links to each other with the emitter of triode Q2, an end of resistance R 2; The other end of resistance R 2 links to each other with the base stage of triode Q1, and the emitter of triode Q1 links to each other with the positive pole of capacitor C 3, the input of current regulator diode D3, and the base stage of triode Q2 links to each other with an end of resistance R 3; The other end of resistance R 3 links to each other with the other end of resistance R 4, the negative pole end of series LED array, and the positive terminal of series LED array links to each other with the output of current regulator diode D3.
The series LED constant-current drive circuit of the utility model on-line operation voltage multiplying rectifier high voltage supply under the 220V AC-input voltage; This circuit is suitable for the Combination application of any LED lighting; Can directly supply power by civil power 220V; Be the circuit that a kind of high voltage and constant current drives, reduced the power unit of AC/DC, reach and reduced the cost purpose than the low pressure constant-current drive technology of present LED illumination extensive use.
Claims (2)
1. the series LED constant-current drive circuit of voltage multiplying rectifier high voltage supply; It is characterized in that comprising exchanging and import over-voltage over-current protection circuit, voltage doubling rectifing circuit, voltage adjustment constant-current drive circuit, Current Feedback Control circuit; Exchanging the input over-voltage over-current protection circuit links to each other with voltage doubling rectifing circuit; Voltage doubling rectifing circuit links to each other with voltage adjustment constant-current drive circuit; Voltage adjustment constant-current drive circuit links to each other with series LED array, Current Feedback Control circuit respectively, and the series LED array links to each other with the Current Feedback Control circuit; Described interchange input over-voltage over-current protection circuit is made up of the piezo-resistance MY of overcurrent protection resettable fuse WHPTC and overvoltage protection; Voltage doubling rectifing circuit is made up of diode D1, diode D2 and capacitor C 1, capacitor C 2; Voltage adjustment constant-current drive circuit is made up of resistance R 1, resistance R 2 and triode Q1, capacitor C 3, current regulator diode D3; The series LED array is made up of 80 LED that series connection is provided with at least, and the Current Feedback Control circuit is made up of resistance R 3, resistance R 4 and triode Q2.
2. the series LED constant-current drive circuit of voltage multiplying rectifier high voltage supply according to claim 1; It is characterized in that described overcurrent protection resettable fuse WHPTC one end links to each other with 220V alternating current one end; The other end of overcurrent protection resettable fuse WHPTC links to each other with the positive pole of piezo-resistance MY one end, diode D1, the negative pole of diode D2; The negative pole of diode D1 links to each other with an end of capacitor C 1, an end of resistance R 1, the collector electrode of triode Q1; The other end of piezo-resistance MY links to each other with the 220V alternating current other end, capacitor C 1 other end, capacitor C 2 one ends; The positive pole of diode D2 links to each other with the other end of capacitor C 2, the collector electrode of triode Q2, the negative pole of capacitor C 3, an end of resistance R 4, and the other end of resistance R 1 links to each other with the emitter of triode Q2, an end of resistance R 2, and the other end of resistance R 2 links to each other with the base stage of triode Q1; The emitter of triode Q1 links to each other with the positive pole of capacitor C 3, the input of current regulator diode D3; The base stage of triode Q2 links to each other with an end of resistance R 3, and the other end of resistance R 3 links to each other with the other end of resistance R 4, the negative pole of series LED array, and the positive pole of series LED array links to each other with the output of current regulator diode D3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204098674U CN202310211U (en) | 2011-10-25 | 2011-10-25 | Series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204098674U CN202310211U (en) | 2011-10-25 | 2011-10-25 | Series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply |
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| Publication Number | Publication Date |
|---|---|
| CN202310211U true CN202310211U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204098674U Withdrawn - After Issue CN202310211U (en) | 2011-10-25 | 2011-10-25 | Series LED (light-emitting diode) constant current driving circuit of voltage-multiplying rectification high-voltage power supply |
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| Country | Link |
|---|---|
| CN (1) | CN202310211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510615A (en) * | 2011-10-25 | 2012-06-20 | 杭州鸿德照明科技有限公司 | Voltage-multiplying rectifying high-voltage power-supplying constant current driving circuit for serially connected LEDs (Light Emitting Diodes) |
| WO2014079137A1 (en) * | 2012-11-22 | 2014-05-30 | 欧普照明股份有限公司 | Led driving controller, lighting device and lighting system |
-
2011
- 2011-10-25 CN CN2011204098674U patent/CN202310211U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510615A (en) * | 2011-10-25 | 2012-06-20 | 杭州鸿德照明科技有限公司 | Voltage-multiplying rectifying high-voltage power-supplying constant current driving circuit for serially connected LEDs (Light Emitting Diodes) |
| CN102510615B (en) * | 2011-10-25 | 2014-04-02 | 杭州鸿德照明科技有限公司 | Voltage-multiplying rectifying high-voltage power-supplying constant current driving circuit for serially connected LEDs (Light Emitting Diodes) |
| WO2014079137A1 (en) * | 2012-11-22 | 2014-05-30 | 欧普照明股份有限公司 | Led driving controller, lighting device and lighting system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20140402 |
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| RGAV | Abandon patent right to avoid regrant |