LED drive circuit
A LED drive and circuit technology, applied in the direction of lamp circuit layout, electric light source, lighting device, etc., can solve the problems of complex functions, lower product qualification rate, increase of unstable factors, etc., and achieve the effect of convenient use and simple structure
Inactive Publication Date: 2012-12-26
SUZHOU HEXINMEI ELECTRONICS SCI & TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
There are many kinds of existing LED driving circuits, but most of them have complex structures and functions. Often, driving circuits with complex circuit structures are used to complete the LED driving functions. On the one hand, the cost will increase. On the other hand, once the circuit structure is complicated Afterwards, the unstable factors behind it are also increasing, which invisibly reduces the product qualification rate
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The technical implementation process of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0014] see figure 1 As shown, an LED driving circuit includes a first chip IC1, a second chip IC2, a third chip IC3 and a display screen LED, and is characterized in that: the twenty-seventh pin 27 of the first chip IC1 is connected to the The 23rd pin 23 of the third chip IC3, the 28th pin 28 of the first chip IC1 is connected to the 22nd pin 22 of the third chip IC3, the 22nd pin 22 of the first chip IC1 The twenty-ninth pin 29 is connected to the twenty-first pin 21 of the third chip IC3, and the thirtieth pin 30 of the first chip IC1 is connected to the twentieth pin 20 of the third chip IC3. , the fourteenth pin 14 of the first chip IC1 is connected to the forty-fourth pin 44 of the second chip IC2, and the twenty-fourth pin 24 of the second chip IC2 passes through the fifteenth resistor R15 Connect the fo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an LED drive circuit, which comprises a first chip, a second chip, a third chip and a display screen, wherein the 27th pin of the first chip is connected with the 23rd pin of the third chip; the 28th pin of the first chip is connected with the 22nd pin of the third chip; the 29th pin of the first chip is connected with the 21st pin of the third chip; the 30th pin of first chip is connected with the 20th pin of the third chip; the 14th pin of the first chip is connected with the 44th pin of the second chip; the 24th pin of the second chip is connected with the 46th pin of the display screen through a 10th resistor; the output pin of the third chip is connected with the base electrode of a triode through a resistor; the collector electrode of the triode is connected with the display screen; and the emitting electrode of the triode is connected with a first work power. The circuit provided by the invention has the advantages of simple structure and convenience in use.
Description
technical field [0001] The invention relates to an application circuit, in particular to an LED driving circuit. Background technique [0002] Due to the low power consumption and low cost of the LED itself, in order to ensure the normal and reliable operation of the LED, various LED drive circuits have emerged as the times require. There are many kinds of existing LED driving circuits, but most of them have complex structures and functions. Often, driving circuits with complex circuit structures are used to complete the LED driving functions. On the one hand, the cost will increase. On the other hand, once the circuit structure is complicated Finally, the unstable factors behind it are also increasing, which invisibly reduces the product qualification rate. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide an LED driving circuit with a simple structure. [0004] In order to solve...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H05B37/02
Inventor 胡国良魏王江
Owner SUZHOU HEXINMEI ELECTRONICS SCI & TECH CO LTD