CN103796368A - Double-line-controlled double-color light-emitting diode indicating lamp - Google Patents
Double-line-controlled double-color light-emitting diode indicating lamp Download PDFInfo
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- CN103796368A CN103796368A CN201210429281.3A CN201210429281A CN103796368A CN 103796368 A CN103796368 A CN 103796368A CN 201210429281 A CN201210429281 A CN 201210429281A CN 103796368 A CN103796368 A CN 103796368A
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Abstract
The invention provides a double-line-controlled double-color light-emitting diode indicating lamp comprising red light-emitting diodes, yellow light-emitting diodes and a microprocessor with the function of pulse width modulation, which is used for controlling the light-emitting duration of the red light-emitting diodes and the yellow light-emitting diodes under the condition of constant input signals. The red light-emitting diodes and the yellow light-emitting diodes are connected in parallel between a first output pin and a second output pin of the microprocessor, with the positive poles of the red light-emitting diodes being connected with the first output pin, and the positive poles of the yellow light-emitting diodes being connected with the second output pin. According to the indicating lamp, a detection signal of a sensor is converted into a digital signal which is then transmitted to the microprocessor with the function of pulse width modulation; the combination or display of different-color lamplights is realized by controlling the light-emitting duration of the red light-emitting diodes and the yellow light-emitting diodes under the condition of the constant input signals, and the size of a measured object is displayed through the different-color lamplights; and the indicating lamp is simple in structure, easy to assemble and power saving.
Description
Technical field
The present invention relates to a kind of indicator light of two-wire control dichromatic LED.
Background technology
The application of existing light-emitting diode, especially while forming color lamp series, be generally by serial connection or and connect the different light-emitting diode of multiple colors, the length of light on and off time by the each light-emitting diode of microprocessor control, realize color scheme miscellaneous, this mode exists and uses that light-emitting diode amount is large, power consumption, circuit connect responsible defect.
Summary of the invention
Object of the present invention provides a kind of indicator light of two-wire control dichromatic LED, uses that light-emitting diode quantity is few, little power consumption and circuit connect simple and can realize polychrome light to reach.
For reaching above-mentioned purpose, the invention provides a kind of indicator light of two-wire control dichromatic LED, comprise a red light emitting diodes, one yellow light-emitting diode and one for controlling this red light emitting diodes in the situation that input signal is constant, the microprocessor with pulse-width modulation function of yellow light-emitting diode light on and off duration, described red light emitting diodes and yellow light-emitting diode are attempted by between first output pin and the second output pin of this microprocessor, and the positive pole of red light emitting diodes connects the first output pin, the positive pole of yellow light-emitting diode connects the second output pin.
The indicator light of above-mentioned two-wire control dichromatic LED, comprises that one for transmitting transducer and an analog to digital converter of detection signal, and this transducer is the signal input pin to described microprocessor through this analog to digital converter serial connection.
Advantage of the present invention is: by the detection signal of transducer being converted to digital data transmission to the microprocessor with pulse-width modulation function, in the situation that input signal is constant, the light on and off ratio that duration of the light on and off of control red light emitting diodes and yellow light-emitting diode distributes red light emitting diodes and yellow light-emitting diode, realize combination or the demonstration of the light of different color, thereby realize the size that is shown measurand by the light of this different color, this indicating lamp structure is simple, assembles easily and power saving.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation block diagram of the indicator light of two-wire control dichromatic LED.
Embodiment
The indicator light of the two-wire control dichromatic LED that the present embodiment provides, as shown in Figure 1, a kind of indicator light of two-wire control dichromatic LED, comprise a red light emitting diodes, one yellow light-emitting diode and one for controlling this red light emitting diodes in the situation that input signal is constant, the microprocessor with pulse-width modulation function of yellow light-emitting diode light on and off duration, described red light emitting diodes and yellow light-emitting diode are attempted by between first output pin and the second output pin of this microprocessor, and the positive pole of red light emitting diodes connects the first output pin, the positive pole of yellow light-emitting diode connects the second output pin.The indicator light of this two-wire control dichromatic LED, also comprises that one for transmitting transducer and an analog to digital converter of detection signal, and this transducer is the signal input pin to described microprocessor through this analog to digital converter serial connection.
The indicator light of the two-wire control dichromatic LED that the present embodiment provides, by the detection signal of transducer being converted to digital data transmission to the microprocessor with pulse-width modulation function, in the situation that input signal is constant, the light on and off ratio that duration of the light on and off of control red light emitting diodes and yellow light-emitting diode distributes red light emitting diodes and yellow light-emitting diode, realize combination or the demonstration of the light of different color, thereby realize the size that is shown measurand by the light of this different color, this indicating lamp structure is simple, assembles easily and power saving.
And the microprocessor relating in the present embodiment has pulse-width modulation function, it can be by carrying out pulse-width modulation to the analog signal of directly exporting through transducer, export different control signals, control the light on and off duration of red light emitting diodes, yellow light-emitting diode, as long as red light emitting diodes and yellow light-emitting diode replace the persistence of vision duration that the duration of light on and off is less than people, can realize demonstration or the indication of polychrome light.
More than exemplifying is only to illustrate of the present invention, does not form the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention all belongs to protection scope of the present invention.
Claims (2)
1. the indicator light of a two-wire control dichromatic LED, it is characterized in that: comprise that a red light emitting diodes, a yellow light-emitting diode and for controlling the microprocessor with pulse-width modulation function of this red light emitting diodes, yellow light-emitting diode light on and off duration in the situation that input signal is constant, described red light emitting diodes and yellow light-emitting diode are attempted by between first output pin and the second output pin of this microprocessor, and the positive pole of red light emitting diodes connects the first output pin, the positive pole of yellow light-emitting diode connects the second output pin.
2. the indicator light of two-wire control dichromatic LED as claimed in claim 1, it is characterized in that: comprise that one for transmitting transducer and an analog to digital converter of detection signal, this transducer is the signal input pin to described microprocessor through this analog to digital converter serial connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429281.3A CN103796368A (en) | 2012-11-01 | 2012-11-01 | Double-line-controlled double-color light-emitting diode indicating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429281.3A CN103796368A (en) | 2012-11-01 | 2012-11-01 | Double-line-controlled double-color light-emitting diode indicating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103796368A true CN103796368A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210429281.3A Pending CN103796368A (en) | 2012-11-01 | 2012-11-01 | Double-line-controlled double-color light-emitting diode indicating lamp |
Country Status (1)
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| CN (1) | CN103796368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109574A (en) * | 2017-12-18 | 2018-06-01 | 武汉水草能源科技研发中心(有限合伙) | Color display, device and display screen, the traffic lights of time allotment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896585A (en) * | 2005-07-11 | 2007-01-17 | 财团法人车辆研究测试中心 | Luminating-color adjusting LED vehicle light and its spot light resource |
| CN201396669Y (en) * | 2009-05-15 | 2010-02-03 | 虞锋 | Vehicle signal lamp device |
| CN102264174A (en) * | 2010-05-24 | 2011-11-30 | 昆盈企业股份有限公司 | Power saving control device of full-color light-emitting diodes and method thereof |
| CN102378453A (en) * | 2011-11-29 | 2012-03-14 | 李香玉 | Multicolour LED (Light-Emitting Diode) lamp with adjustable brightness |
| CN202931622U (en) * | 2012-11-01 | 2013-05-08 | 西安华科光电有限公司 | Indicating lamp for controlling two-color light-emitting diodes by two wires |
-
2012
- 2012-11-01 CN CN201210429281.3A patent/CN103796368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896585A (en) * | 2005-07-11 | 2007-01-17 | 财团法人车辆研究测试中心 | Luminating-color adjusting LED vehicle light and its spot light resource |
| CN201396669Y (en) * | 2009-05-15 | 2010-02-03 | 虞锋 | Vehicle signal lamp device |
| CN102264174A (en) * | 2010-05-24 | 2011-11-30 | 昆盈企业股份有限公司 | Power saving control device of full-color light-emitting diodes and method thereof |
| CN102378453A (en) * | 2011-11-29 | 2012-03-14 | 李香玉 | Multicolour LED (Light-Emitting Diode) lamp with adjustable brightness |
| CN202931622U (en) * | 2012-11-01 | 2013-05-08 | 西安华科光电有限公司 | Indicating lamp for controlling two-color light-emitting diodes by two wires |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109574A (en) * | 2017-12-18 | 2018-06-01 | 武汉水草能源科技研发中心(有限合伙) | Color display, device and display screen, the traffic lights of time allotment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |