CN201733479U - Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light - Google Patents
Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light Download PDFInfo
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- CN201733479U CN201733479U CN2010201519677U CN201020151967U CN201733479U CN 201733479 U CN201733479 U CN 201733479U CN 2010201519677 U CN2010201519677 U CN 2010201519677U CN 201020151967 U CN201020151967 U CN 201020151967U CN 201733479 U CN201733479 U CN 201733479U
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- led
- circuit
- constant current
- triode
- current regulator
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Abstract
The utility model discloses a circuit for carrying out pulse control on a constant current diode to conduct and drive an LED to emit light, which comprises a triode (1) and is characterized in that a collecting electrode of the triode (1) is connected with the constant current diode (2); and the constant current diode (2) is connected with an LED light-emitting diode (3). The utility model has the advantages of constant output current, normal and stable light emission of the LED and capability of reducing heat productivity of the LED and a driving device so as to reduce light attenuation, simplify a heat dissipation device of the LED and prolong the service life of the LED light-emitting diode. Compared with the LED scheme driven by DC, the utility model saves electricity by about 30 percent and can prevent a driving power supply from being burnt down due to short circuit of a load. The circuit has simple integrated structure and stable performance.
Description
Technical field
The utility model relates to the luminous circuit of a kind of pulse control current regulator diode conducting driving LED,, particularly a kind of constant-current source that is used to drive great power LED.
Background technology
Because LED is a current control device, so most of drive circuit all adopts the mode of constant-current driving, and most of electronic module or the integrated circuit of adopting of these constant-current sources realizes that the entire circuit complex structure costs an arm and a leg.Particularly the high-power LED illumination caloric value is big for LED, directly causes the LED light decay to be accelerated, and LED shortens useful life.Also there are not at present good method and technology to solve the big problem of LED caloric value.
Summary of the invention
The purpose of this utility model is: the heating of a kind of LED of reducing and driving element is provided, reduces the luminous circuit of pulse control current regulator diode conducting driving LED of LED light decay, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: the luminous circuit of pulse control current regulator diode conducting driving LED, and the collector electrode utmost point of triode connects current regulator diode, and current regulator diode connects the LED light-emitting diode.
The above-mentioned luminous circuit of pulse control current regulator diode conducting driving LED, described triode is a switching tube.
The above-mentioned luminous circuit of pulse control current regulator diode conducting driving LED, described current regulator diode adopts at least 2 current regulator diode parallel connections.
The utlity model has following advantage: the current regulator diode of employing is the 2DHL series that Guizhou Boyue Electronic ﹠ Science Co., Ltd. produces, and characteristics are that output current is constant, and LED is luminous normal stable.Transistor collector input pulse square-wave signal control LED light on and off, because LED has only half period normally luminous in a square-wave cycle, half period LED extinguishes in addition, when the frequency of control impuls square wave reaches 200HZ when above, LED is flicker not, therefore can reduce the caloric value of LED and drive unit, thereby reduce the light decay of LED, simplify the LED heat abstractor, prolonged the life-span of LED light-emitting diode.Since LED be not continue to light luminous, more about 30% than the LED scheme power saving of DC driven, can prevent to burn because of load short circuits causes driving power.The circuit overall structure is simple, stable performance.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the performance diagram of the utility model current regulator diode.
Embodiment
Embodiment of the present utility model: as shown in Figure 1, this structure comprises triode 1, and the collector electrode of triode 1 connects current regulator diode 2, and current regulator diode 2 connects LED light-emitting diode 3.
Triode 1 can adopt the good switching tube of switching characteristic.Current regulator diode 2 is the 2DHL series constant current diode of Guizhou Boyue Electronic ﹠ Science Co., Ltd., can select different model according to actual needs, the electric current of the current regulator diode serial or parallel connection can also being satisfied the demand.The current regulator diode characteristic curve as shown in Figure 2.Fig. 2 is described as follows:
I
H----constant current value, test condition: V
S=5V;
V
K----initial constant current voltage, test condition: measuring current I
K=0.8I
H
V
S----test, working voltage
V
E----maximum constant current voltage range is by the power consumption decision (by the footprint definitions of product) of product;
I
R----reverse breakdown voltage V
RCorresponding leakage current.
V
B----limit working voltage;
V
R----is oppositely withstand voltage, test condition: I
R=50nA
Triode 1 can adopt the good switching tube of switching characteristic, and the input of triode 1 collector electrode can be a square wave, sine wave, the PWM modulating wave is controlled triode 1 break-make, makes the 3 intermittently light on and off of LED light-emitting diode, thereby reduce power on the whole and reduce the LED caloric value, reduce the LED light decay.Triode 1 base stage can also connect light-sensitive element, thereby controls the light on and off of LED light-emitting diode 3 automatically.The circuit working principle is when triode 1 base stage is high level, and triode 1 conducting LED light-emitting diode 3 is luminous; When triode 1 base stage was low level, triode 1 extinguished by LED light-emitting diode 3.The frequency of pulse square wave reaches 200HZ when above, and LED is flicker not.
Claims (3)
1. the luminous circuit of pulse control current regulator diode conducting driving LED comprises triode (1), and it is characterized in that: the collector electrode of triode (1) connects current regulator diode (2), and current regulator diode (2) connects LED light-emitting diode (3).
2. the luminous circuit of pulse control current regulator diode conducting driving LED according to claim 1, it is characterized in that: described triode (1) is a switching tube.
3. the luminous circuit of pulse control current regulator diode conducting driving LED according to claim 1, it is characterized in that: described current regulator diode (2) adopts at least 2 current regulator diode parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201519677U CN201733479U (en) | 2010-04-07 | 2010-04-07 | Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201519677U CN201733479U (en) | 2010-04-07 | 2010-04-07 | Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201733479U true CN201733479U (en) | 2011-02-02 |
Family
ID=43524633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201519677U Expired - Fee Related CN201733479U (en) | 2010-04-07 | 2010-04-07 | Circuit for carrying out pulse control on constant current diode to conduct and drive LED to emit light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201733479U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811527A (en) * | 2011-05-31 | 2012-12-05 | 海洋王照明科技股份有限公司 | LED frequency-variable marker lamp and control circuit and control method of marker lamp |
| CN102811528A (en) * | 2011-05-31 | 2012-12-05 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) marker light |
| CN102917486A (en) * | 2011-08-02 | 2013-02-06 | 北京同步科技有限公司 | LED lamp adjustable in luminance and color temperature |
| WO2013139140A1 (en) * | 2012-03-19 | 2013-09-26 | 无锡华润华晶微电子有限公司 | Power integrated circuit |
| CN103712775A (en) * | 2013-12-18 | 2014-04-09 | 电子科技大学 | Device for measuring time constant of pyroelectric detector |
| CN103728951A (en) * | 2014-01-06 | 2014-04-16 | 深圳市兴源智能仪表科技有限公司 | Current regulative diode circuit of meter bus slave interface |
-
2010
- 2010-04-07 CN CN2010201519677U patent/CN201733479U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811527A (en) * | 2011-05-31 | 2012-12-05 | 海洋王照明科技股份有限公司 | LED frequency-variable marker lamp and control circuit and control method of marker lamp |
| CN102811528A (en) * | 2011-05-31 | 2012-12-05 | 海洋王照明科技股份有限公司 | Light emitting diode (LED) marker light |
| CN102917486A (en) * | 2011-08-02 | 2013-02-06 | 北京同步科技有限公司 | LED lamp adjustable in luminance and color temperature |
| WO2013139140A1 (en) * | 2012-03-19 | 2013-09-26 | 无锡华润华晶微电子有限公司 | Power integrated circuit |
| CN103712775A (en) * | 2013-12-18 | 2014-04-09 | 电子科技大学 | Device for measuring time constant of pyroelectric detector |
| CN103728951A (en) * | 2014-01-06 | 2014-04-16 | 深圳市兴源智能仪表科技有限公司 | Current regulative diode circuit of meter bus slave interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU YUNI ELECTRONICS + TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GUIZHOU BOYUE ELECTRONIC + SCIENCE CO., LTD. Effective date: 20120111 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120111 Address after: 550008 No. 5, standard factory building, Jinyang hi tech Industrial Zone, Guiyang hi tech Zone, Guizhou, -1 Patentee after: Guizhou Yuni Electronics Technology Co., Ltd. Address before: 550008 No. 5, standard factory building, Jinyang hi tech Industrial Zone, Guiyang hi tech Zone, Guizhou, -1 Patentee before: Guizhou Boyue Electronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20160407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |