CN2906299Y - Stable release-controlled illumination indicating device of LED - Google Patents
Stable release-controlled illumination indicating device of LED Download PDFInfo
- Publication number
- CN2906299Y CN2906299Y CNU2006200812541U CN200620081254U CN2906299Y CN 2906299 Y CN2906299 Y CN 2906299Y CN U2006200812541 U CNU2006200812541 U CN U2006200812541U CN 200620081254 U CN200620081254 U CN 200620081254U CN 2906299 Y CN2906299 Y CN 2906299Y
- Authority
- CN
- China
- Prior art keywords
- light emitting
- emitting diode
- diode
- triode
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to an LED indication device with long term stable illumination, comprising a power matching the LED in the transparent shade, which is characterized in that a constant voltage diode in series on at least an LED is regarded as an illuminating unit and a plurality of illuminating units are in series. The constant voltage diode on as illuminating unit is arranged in the same tube shell as the chip of the diode. The two ends in series of a plurality of illuminating units are connected with the collecting anode of the constant current triode and the positive pole of the power. The constant current resistance between the transmitting pole and the ground form an illumination device comprising of illuminating units with constant current structure. Thus, the quench of the whole serial diode can be avoided when the voltage is decreased by controlling the triode. Apparently, the utility model provides an illumination or indication with stable and reliable performance, energy saving, long life cycle, and provides illumination or indication information as required.
Description
Technical field
The utility model relates to a kind of stable long-acting lighting indication device of light emitting diode.
Background technology
Light emitting diode (LED) is as the semiconductor devices that electric energy is converted into luminous energy and radiant energy, it has, and low-voltage, low power consumption, color are abundant and stable and reliable for performance, in light weight, advantages such as volume is little, sound construction, therefore are widely used in fields such as illumination sign indication and image demonstration.
As the light emitting diode of illumination, general adopt in parallel or series connection, also can adopt series connection again after the parallel connection, or in parallel again after the series connection.The pressure drop of general light emitting diode is about about the 2-3 volt, particularly when supply voltage is higher, just needs many light emitting diode series connection work with electric current, will influence the whole light emitting diode of going here and there and does not work and lost efficacy when light emitting diode wherein opens circuit.Although suitable resistance in every light emitting diode parallel connection is to deal with problems, power consumption is too big.If with two or many with series connection again after the light emitting diode parallel connection of voltage, perhaps select for use the light emitting diode of two chips or the parallel connection of multicore sheet to connect, then can increase the probability of damage, when wherein a light emitting diode opens circuit, the electric current of light emitting diode in parallel is with it increased, make the easier damage of this light emitting diode, thereby make the whole luminous inefficacy of serializer circuit.As illuminating lamp or red green traffic signal lamp etc., used light emitting diode tandem junction structure, the light emitting diode of use is more, operating current is bigger, indivedual light emitting diodes very easily damage, and particularly wherein a light emitting diode opens circuit, and whole string light emitting diode is not worked; Or work as the supply voltage shakiness, and especially being lower than operating voltage, whole string light emitting diode can not work yet, if adopt step-down and voltage stabilizing, then usually can cause efficient reduction and electromagnetic interference etc.These problems but fail effectively to be solved for a long time.
Summary of the invention
The purpose of this utility model provides a kind of stable long-acting lighting indication device of light emitting diode, to remedy the deficiencies in the prior art.
The utility model is the improvement to prior art, technical scheme is to adopt at least one light emitting diode corresponding Zener diode in parallel to go here and there mutually as a luminescence unit and with in the translucent cover envelope, and be provided with power supply and constitute the most basic lighting indication device, consider and save Zener diode Z, Zener diode Z can be connected across the luminescence unit that the two ends of the light emitting diode of at least one series connection are formed again, obviously, should select the voltage sum of the rated voltage of Zener diode Z this moment greater than two or three luminous tubes of institute's cross-over connection.Therefore, it comprises light emitting diode and the power supply that matches in the translucent cover, and it is characterized in that it also comprises at least one light emitting diode corresponding Zener diode in parallel as a luminescence unit, and has a plurality of these luminescence units to be in series to form.
For reducing the cost and using more conveniently, can utilize semiconductor packaging process to be encapsulated in same the shell chip of voltage stabilizing two utmost point Z of an above-mentioned luminescence unit and the chip of light emitting diode.
And then, the a plurality of two ends that are in series of luminescence unit of above-mentioned Zener diode and light emitting diode composition are connect the colelctor electrode of current stabilization triode and the positive pole of power supply respectively, between the base stage of this current stabilization triode and the power supply dropping resistor is arranged, at least two diodes are arranged between base stage and the ground, between emitter stage and the ground ballast resistance is arranged, constitute the circuit lighting indication device that the current stabilization structure is arranged of luminescence unit.
Further contemplate when supply voltage low excessively, when being lower than the voltage summation of series connection light emitting diode, lose necessary illumination or indication information for avoiding whole string light emitting diode all to extinguish.Adding the control triode more respectively near on each luminescence unit of current stabilization triode; the positive pole of the colelctor electrode sending and receiving light unit of this control triode; the negative pole of emitter stage sending and receiving light unit of this control triode, the base stage of this control triode is on current-limiting resistance and protection diode connect A point by reference voltage one end of dropping resistor and four diode D3 to D6 generations.
Equally, for compact conformation, reduce cost and easy to use, the utility model is encapsulated in triode chip, light-emitting diode chip for backlight unit and Zener diode Z chip in same the shell.
Obviously, the utility model of constructing thus is as illumination or indication, and it is stable and reliable for performance, economize on electricity, and long service life can guarantee necessary illumination or indication information fully effectively.
Description of drawings
The illumination indication general structure schematic diagram of Fig. 1, the most basic luminescence unit of the present utility model.
The structural representation of Fig. 2, another luminescence unit of the present utility model.
Fig. 3, the circuit diagram that the current stabilization structure is arranged of the present utility model.
Fig. 4, the circuit diagram that current stabilization structure and control tributary are arranged of the present utility model.
The example schematic diagram in Fig. 5, control of the present utility model tributary.
Fig. 6, application example structure schematic diagram of the present utility model.
1 translucent cover, 2 light emitting diodes (LED), 3 Zener diodes (Z), 4 power supplys, 5 luminescence units wherein.
The specific embodiment
As shown in Figure 1, the technical solution of the utility model is to adopt a luminescence unit 5 of a Zener diode 3 in parallel on light emitting diode 2, and there are a plurality of luminescence units 5 to go here and there it mutually, and with in translucent cover 1 envelope, and be provided with power supply 4 and the most basic lighting device of formation.Therefore it comprises the light emitting diode 2 and the power supply 4 that matches in the translucent cover 1, it is characterized in that it also comprises a luminescence unit 5 of corresponding Zener diode 3 in parallel at least one light emitting diode 2, and has a plurality of these luminescence units 5 to be in series to form.
The technical rated voltage of Zener diode Z that should guarantee must be a bit larger tham the operating voltage of light emitting diode.Zener diode Z no current passes through during operate as normal, in case wherein a light emitting diode opens circuit, with its mutually and the just conducting of Zener diode Z that connects, so just guaranteed the conducting effect of whole serializer circuit.Obviously, if on technology, the chip of the Zener diode 3 of above-mentioned luminescence unit 5 and the chip of light emitting diode 2 are encapsulated in the shell, use just more convenient like this.
As shown in Figure 2, consider and save Zener diode Z, Zener diode Z can be connected across the two ends of the light emitting diode of two or three series connection, should select the voltage sum of the rated voltage of Zener diode Z this moment equally greater than two or three luminous tubes.As Fig. 2 is the light emitting diode of two series connection of Zener diode Z cross-over connection.
As shown in Figure 3, consider when supply voltage unstable and when changing within the specific limits, for avoiding the luminosity shakiness or burning out luminous tube, the two ends that the above-mentioned Zener diode 3 and the luminescence unit of light emitting diode 2 are gone here and there mutually connect the colelctor electrode of current stabilization triode T and the positive pole of power supply 4 respectively, between the base stage of this current stabilization triode T and the power supply 4 dropping resistor R3 is arranged, have two diode D3, D4 between base stage and the ground at least, ballast resistance R5 is arranged between emitter stage and the ground, constitute the lighting indication device of current stabilization structural circuit.
As shown in Figure 4, further contemplate when supply voltage low excessively, when being lower than the voltage summation of series connection light emitting diode, lose necessary illumination or indication information for avoiding whole string light emitting diode all to extinguish.The utility model is on the basis of Fig. 3; controlling triode T1 near adding respectively again on each luminescence unit of current stabilization triode T; the positive pole of the colelctor electrode sending and receiving light unit of this control triode T1; the negative pole of the emitter stage sending and receiving light unit of this control triode T1, the base stage of this control triode T1 is on current-limiting resistance R1 and protection diode D1 connect A point by reference voltage one end of dropping resistor R3 and four diode D3, D4, D5, D6 generation.
As shown in Figure 5, be the diagram of control triode T1 and two or three luminescence units of control triode T2 cross-over connection
When supply voltage was higher than the total voltage of light emitting diode, unnecessary voltage was fallen by current stabilization circuit, and at this moment the colelctor electrode pipe of current stabilization triode T is pressed and uprised, and in check triode T1 and T2 etc. are ended, to guarantee the light emitting diode operate as normal.When supply voltage reduces, make the corresponding reduction of collector voltage of current stabilization triode T, when being lower than two PN junction voltages of A point, T1 is conducting gradually, and with LED 1 short circuit, when supply voltage further reduces, then also conducting gradually of T2, and with LED2 short circuit or the like.The number of the light emitting diode of required control will be decided on the peak and the minimum of supply voltage.The number of the light emitting diode that should the control percentage that accounts for total light emitting diode should be equal to or slightly greater than the percentage of mains fluctuations, as being changed to of supply voltage ± 10%, then the number of controlled light emitting diode should account for 10% of total number.
Equally, be compact conformation and easy to use, triode chip, light-emitting diode chip for backlight unit and Zener diode Z chip can be encapsulated in same the shell.
As embodiment, Fig. 6 is the example of a lighting indication device or illuminating lamp.The be in series positive pole of last termination dc source of structure of a plurality of luminescence units 5 that have the light emitting diode LDE1 of Zener diode Z and control triode T1, and the colelctor electrode of following termination current stabilization triode T, the emitter stage of T is then received the negative pole of dc source by potentiometer R4 and resistance R 5.Use the R4 potentiometer can make things convenient for light modulation.D3, D4 are the 1N4007 silicon diode, and the burning voltage that two diodes can produce about 1.3V offers the base stage of barretter.The same with the D3 D4 burning voltage that about 1.3V also can be provided with D6 of D5 makes the have an appointment burning voltage of 2.6V of A point offer the base stage of control triode T1, T2 etc.D1 D2 etc. is protection T1 T2's etc.R1 R2 etc. is a current-limiting resistance.R3 is a dropping resistor, and D3, D4 and D5, D6 can provide stable voltage.Whole illuminating lamp efficient is higher, generates heat less and working stability.
Claims (5)
1, a kind of stable long-acting lighting indication device of light emitting diode, it comprises light emitting diode (2) and the power supply (4) that matches in the translucent cover (1), it is characterized in that it comprises that also at least one light emitting diode (2) goes up a luminescence unit (5) of corresponding Zener diode (3) in parallel, and have a plurality of these luminescence units (5) to be in series to form.
2, the stable long-acting lighting indication device of light emitting diode as claimed in claim 1, it is characterized in that connecing the colelctor electrode of current stabilization triode (T) and the positive pole of power supply (4) respectively at the two ends that the above-mentioned Zener diode (3) and the luminescence unit (5) of light emitting diode (2) are gone here and there mutually, between the base stage of this current stabilization triode (T) and the power supply (4) dropping resistor R3 is arranged, have two diode D3, D4 between base stage and the ground at least, ballast resistance R5 is arranged between emitter stage and the ground, constitute the lighting indication device of current stabilization structural circuit.
3, the stable long-acting lighting indication device of light emitting diode as claimed in claim 2; it is characterized in that above-mentioned near adding control triode (T1) on each luminescence unit of current stabilization triode (T) more respectively; the positive pole of the colelctor electrode sending and receiving light unit of this control triode (T1); the negative pole of emitter stage sending and receiving light unit (5) of this control triode (T1), the base stage of this control triode (T1) is on current-limiting resistance R1 and protection diode D1 connect reference voltage one end (A) by dropping resistor R3 and four diode D3, D4, D5, D6 generation.
4, the stable long-acting lighting indication device of light emitting diode as claimed in claim 1 is characterized in that the chip of Zener diode (3) of above-mentioned each luminescence unit (5) and the chip of light emitting diode (2) are encapsulated in same the shell.
5, the stable long-acting lighting indication device of light emitting diode as claimed in claim 3 is characterized in that above-mentioned control triode (T1) chip, light emitting diode (2) chip and Zener diode (3) chip are encapsulated in same the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200812541U CN2906299Y (en) | 2006-02-25 | 2006-02-25 | Stable release-controlled illumination indicating device of LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200812541U CN2906299Y (en) | 2006-02-25 | 2006-02-25 | Stable release-controlled illumination indicating device of LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906299Y true CN2906299Y (en) | 2007-05-30 |
Family
ID=38114934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200812541U Expired - Fee Related CN2906299Y (en) | 2006-02-25 | 2006-02-25 | Stable release-controlled illumination indicating device of LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906299Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061434A1 (en) * | 2006-11-21 | 2008-05-29 | Xiaoan Sun | An led bulb |
-
2006
- 2006-02-25 CN CNU2006200812541U patent/CN2906299Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061434A1 (en) * | 2006-11-21 | 2008-05-29 | Xiaoan Sun | An led bulb |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201805584U (en) | Piecewise transformation input LED light source driving circuit supplied with power by alternating-current power supply | |
| CN201479428U (en) | Constant current and constant voltage LED lighting circuit | |
| CN101532608B (en) | Direct current multi-purpose large-power LED lighting energy-saving lamp of microcomputer | |
| CN100499951C (en) | Stable long-acting lighting indication device for light-emitting diode | |
| CN201726558U (en) | Novel LED energy-saving lamp | |
| CN201170458Y (en) | Microcomputer DC multipurpose high-power LED illumination energy-saving lamp | |
| CN206115707U (en) | Solar energy LED traffic light of adjustable luminance | |
| CN2906299Y (en) | Stable release-controlled illumination indicating device of LED | |
| CN201731335U (en) | Alternating current direct-drive LED lamp tube | |
| CN201425219Y (en) | High-power LED outdoor lighting lamp | |
| CN201803198U (en) | Constant-current compensation type LED (light-emitting diode) fluorescent lamp | |
| CN102149233A (en) | LED (Light Emitting Device) light source control device | |
| CN201590933U (en) | Anti-interference constant-voltage constant-current circuit device for energy-saving LED lamp | |
| CN201491316U (en) | High-voltage LED driving circuit | |
| CN201196345Y (en) | LED spot light suitable for AC commercial power | |
| CN201114894Y (en) | A LED driving circuit | |
| CN202475885U (en) | Bidirectional constant-current circuit integrated module | |
| CN201869407U (en) | LED intelligent control circuit | |
| CN200975619Y (en) | Semiconductor light-emitting diode table lamp table lamp | |
| CN201270605Y (en) | Synthetic control circuit for LED road lamp | |
| CN201053595Y (en) | LED energy-saving daylight lamp | |
| CN201919223U (en) | High-power LED lamp | |
| CN201601859U (en) | Non-isolated LED driving circuit | |
| CN201314532Y (en) | Series parallel circuit of LED fluorescent tube | |
| CN200950682Y (en) | Novel highly effective low cost constant-current driver for LED lighting lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 |