CN2770271Y - LED colour lamp driver - Google Patents
LED colour lamp driver Download PDFInfo
- Publication number
- CN2770271Y CN2770271Y CN 200520055100 CN200520055100U CN2770271Y CN 2770271 Y CN2770271 Y CN 2770271Y CN 200520055100 CN200520055100 CN 200520055100 CN 200520055100 U CN200520055100 U CN 200520055100U CN 2770271 Y CN2770271 Y CN 2770271Y
- Authority
- CN
- China
- Prior art keywords
- led
- color lamp
- driver
- crystal grains
- positive
- 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
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The utility model relates to a driver of an LED color lamp. The utility model comprises a built-in oscillator and a group of output switches of MOS pipes, wherein the MOS pipes are PMOS pipes, one output terminal of the MOS pipe can be connected with a positive electrode of a light emitting diode (LED) crystal grain, and the other terminal of the MOS pipe can be connected with a positive electrode of power supply; the driver is a scintillating LED driving chip (IC); when the LED color lamp is encapsulated, the driving chip (IC) is arranged above a supporting frame of a positive leading pin of the color lamp and is fixed with the positive leading pin by gels; the LED crystal grains are arranged above a supporting frame of a negative leading pin, wherein positive electrodes of part of or all LED crystal grains face upward, negative electrodes face downwards, such as red light crystal grains, yellow light crystal grains, yellow green light crystal grains or orange light crystal grains, or part of the positive electrodes of the LED crystal grains face upward, the negative electrodes also face upward, such as blue light crystal grains or green light crystal grains. The driver which adopts positive output has the advantages that the driver can directly drive light emitting diode LED color lamps of low cost and various colors, and can enhance the encapsulated nondefective rate of the LED color lamp.
Description
Technical field
The utility model relates to light-emitting diode (LED) color lamp, especially relates to the driver that a kind of LED color lamp that can glimmer is used.The color lamp that the utility model is made is suitable for use as the decoration of toy, as the decoration of Christmas lamp, as the decoration of present etc.
Background technology
In the present technique field, the output end of driver of traditional LED color lamp is a nmos switch, as shown in Figure 1, an end ground connection, the negative pole of another output sending and receiving optical diode (LED) connects positive source after the anodal general series resistance of light-emitting diode (LED).The sense of current in the color lamp is that from the positive pole of the positive pin inflow light-emitting diode of color lamp (LED), the negative pole from light-emitting diode (LED) flows to output end of driver again, after the earth terminal of driver flows to the negative pin of color lamp.
In the encapsulation of LED color lamp, the chip of used led driver (IC) is positioned on the negative pin support usually, is negative chip and places; Light-emitting diode (LED) crystal grain is positioned on the positive pin support, sees Fig. 3.Wherein the chip of driver (IC) is reverse output, passive power supply.Chip for driving (IC) bottom polarity is opposite with pin polarity, so must use insulating cement therebetween.
The defective of traditional LED color lamp driver is:
1. because being the driver of NMOS pipe, output is oppositely output, the characteristic of passive power supply, and the LED crystal grain kind that can drive is restricted.Can not connect forward ruddiness, gold-tinted, green-yellow light, and the LED crystal grain of tangerine coloured light.
2. because chip for driving (IC) bottom polarity for just, is encapsulated in the color lamp, must use insulating cement therebetween when it is positioned on the negative pin, should play fixation, insulation property are arranged again.
Summary of the invention
The purpose of this utility model is: in order to remedy above-mentioned defective, provide a kind of led driver chip (IC), can export, initiatively power by forward, can directly drive the color lamp of lower-cost versicolor light-emitting diode (LED) crystal grain.
For achieving the above object, the utility model adopts following technical scheme: a kind of LED color lamp driver, comprise a built-in oscillator, one group of metal-oxide-semiconductor output switch, described metal-oxide-semiconductor is the PMOS pipe, its output can be connected with the positive pole of light-emitting diode (LED) crystal grain, and the other end of this PMOS pipe can be connected with positive source.Described driver is a kind of flicker LED chip for driving (IC), and its input voltage is 3 to 5 volts (V), and output current is less than 20 milliamperes (mA).
In LED color lamp when encapsulation,, described chip for driving (IC) places on the support of the positive pin of color lamp, and the polarity of chip bottom is being also for just, so can also can fix with insulating cement with gel between the support of itself and described positive pin.
This programme considers that forward ruddiness, gold-tinted, green-yellow light and tangerine light LED crystal grain all are anodal last, negative pole under, and electric current must flow to the negative pole of crystal grain from the positive pole of crystal grain, LED could be shinny.And during fixed (BONDING) conductive lead wire of nation, gold thread can only be beaten above LED crystal grain.Just require this moment LED chip for driving (IC) can forward output, initiatively power supply, i.e. output current initiatively, rather than passive acceptance transmits and the electric current that comes from LED crystal grain negative pole.So the light-emitting diode in the color lamp (LED) crystal grain just is placed on the support of negative pin.
The advantage of the utility model LED color lamp driver is as follows:
The first, when making the LED color lamp, because the PMOS switch is used in the output of led driver of the present utility model, can accomplish forward output, can drive versicolor LED crystal grain,, thereby can greatly reduce cost with the expensive LED crystal grain of LED crystal grain replacement cheaply.
The second, during the packaged LED color lamp, as shown in Figure 4, LED chip for driving (IC) just is being put on the support of positive pin, and this kind packaged type needn't use insulating cement to separate between chip for driving (IC) bottom and support, only need use common glue.Because of the gel price is lower than insulating cement, also can save departmental cost.
The 3rd, when traditional LED chip for driving (IC) is encapsulated in use insulating cement in the LED color lamp, as long as for example have: liquid insulating cement has mobile slightly, or smear inhomogeneous, or bubble or the like appears, these problems scrap a color lamp in case appearance will cause the leak electricity short-circuit between chip for driving (IC) and the negative pin.And the utility model chip for driving (IC) bottom is identical with pin polarity, uses gel only to play fixation, just these problems can not occur, can improve the encapsulation yields of LED color lamp.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is traditional LED color lamp driver output circuit principle schematic;
Fig. 2 is the utility model LED color lamp driver output circuit principle schematic;
Fig. 3 is the LED color lamp packaged type schematic diagram of traditional driver;
Fig. 4 is the LED color lamp packaged type schematic diagram of the utility model driver;
Fig. 5 is the pin figure of an embodiment of the utility model driver;
Fig. 6 is the external cabling schematic diagram of the utility model embodiment;
Output waveform figure when Fig. 7 is 100Hz for the clock frequency of the utility model embodiment;
Output waveform figure when Fig. 8 is 25Hz for the clock frequency of the utility model embodiment;
Fig. 9 is the utility model driver embodiment, drives the LED color lamp schematic diagram of a crystal grain;
Figure 10 is the utility model driver embodiment, drives the LED color lamp schematic diagram of two crystal grain;
Figure 11, Figure 12, Figure 13 are the utility model driver embodiment, drive the LED color lamp schematic diagram of three crystal grain.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
The utility model LED color lamp driver is a kind of low-loss, high performance CMOS led controller.It comprises one can come the built-in oscillator of regulating frequency with external resistance, the output of one group of PMOS pipe.In the output circuit, an output of PMOS pipe is connected with the positive pole of light-emitting diode (LED) crystal grain, and the other end of this pipe is connected with positive source, as shown in Figure 2.The negative pole of light-emitting diode (LED) crystal grain can series resistance after ground connection.The sense of current in the color lamp is, flow into the positive pole (VDD) of chip for driving (IC) from the positive pin of color lamp, flow to the positive pole of light-emitting diode (LED) again from the output (LED1, LED2 or LED3) of chip for driving (IC), after the negative pole of light-emitting diode (LED) flows to the negative pin LED of color lamp.
During the encapsulation color lamp, a kind of flicker LED chip for driving (IC) is placed on the support of the positive pin of color lamp, be positive chip and place, see Fig. 4.Its bottom polarity and pin just are similarly, so can use gel also can use insulating cement to fix between chip and the positive pin.Light-emitting diode (LED) crystal grain places on the negative pin support simultaneously, and wherein partly or entirely the positive pole of light-emitting diode (LED) crystal grain makes progress, and negative pole is downward, as ruddiness, gold-tinted, green-yellow light or tangerine optical grain; Perhaps the positive pole of part light-emitting diode (LED) crystal grain makes progress, and negative pole also makes progress, as blue light or green dies.The LED crystal grain that changing-over is different can obtain different illumination effects.
Fig. 5 is the pin figure of an embodiment of the utility model driver, and this driver can be imported by CMOS compatible, and input voltage is 3 to 5 volts (V).Its mode of operation has two kinds: pattern 1, can glisten periodically automatically after the energising; Pattern 2 can trigger by hand.Its pin is described as follows table:
| The pin item | Pin | Function | |
| 1 | SPEED | Speed control end SPEED meets VCC at a |
|
| 2 | OSC2 | Oscillation output end | |
| 3 | OSC1 | The |
|
| 4 | KEY1 | The ON/ |
|
| 5 | KEY2 | The pattern control end | |
| 6 | TEST | The |
|
| 7 | VDD | Supply voltage 5V ± 10% | |
| 8 | LED1 | Green glow or other | |
| 9 | LED2 | Blue light or |
|
| 10 | LED3 | Ruddiness or other | |
| 11 | VSS | Earth terminal | |
| Remark | SUBSTRATE | Connect VDD; Perhaps unsettled |
Fig. 6 is the external cabling schematic diagram of this driver.Wherein the electric current of three LED must be below 20 milliamperes (mA).When mode of operation 1, K2 disconnects, and promptly KEY2 does not connect, and LED can glisten periodically automatically after the energized; When mode of operation 2, K2 connects, and promptly KEY2 is linked VDD, can trigger the change that K1 controls led color by hand.
Under the state of mode of operation 1, the controlled step in different LED flash of light stages is as follows:
Step 1: shades of colour gradually goes out by suitable order.
Step 2: shades of colour by suitable order from getting brighter gradually going out.
Step 3: in one-period, each color is glimmered respectively in order and is extinguished.
Step 4: in one-period, the two kinds of colors in ground that are combined glimmer respectively in order and extinguish.
Its output waveform such as Fig. 7, shown in Figure 8.
Fig. 9 is the utility model driver embodiment to Figure 13, drives a LED color lamp schematic diagram to three different crystal grain.Chip for driving (IC) 1 places on the positive pin support, uses gel sets between chip bottom and the support.Light-emitting diode (LED) crystal grain 4,5,6,7 or 8 places respectively on the support of negative pin, and crystal grain can be ruddiness, gold-tinted, green-yellow light or tangerine optical grain, and the positive pole of crystal grain makes progress, and negative pole is downward; Also can be blue light or green dies, the positive pole of crystal grain makes progress, and negative pole also makes progress.
Can see in from Fig. 9 to Figure 13, a gold thread connects the VDD solder joint 2 of positive pin and chip for driving (IC) 1, another connects the VSS solder joint 3 of bearing pin and chip for driving (IC) 1 with gold thread, and other gold thread connects output LED1, the LED2 of LED chip for driving (IC) 1 or the positive pole of LED3 solder joint and LED crystal grain 4,5,6,7 or 8.Electric current flows through driver chip (IC) 1 from positive pin, flows to the positive pole of LED crystal grain again, makes LED crystal grain shinny.
The utility model LED color lamp driver when color lamp encapsulates, as long as can accomplish to make the power supply of driver forward, just can be applied to the product of other LED color lamp.
Claims (7)
1. LED color lamp driver, it comprises a built-in oscillator, one group of metal-oxide-semiconductor output switch, it is characterized in that: described metal-oxide-semiconductor is the PMOS pipe, and the output of this PMOS pipe is connected with the positive pole of light-emitting diode (LED) crystal grain; The other end is connected with power cathode.
2. LED color lamp driver according to claim 1 is characterized in that: described driver is a kind of flicker LED chip for driving (IC).
3. LED color lamp driver according to claim 1 and 2 is characterized in that: the input voltage of described driver is 3 to 5 volts (V).
4. LED color lamp driver according to claim 1 and 2 is characterized in that: the output current of described driver is less than 20 milliamperes (mA).
5. LED color lamp driver according to claim 1 and 2 is characterized in that: the chip of described driver (IC) is packaged on the support of the positive pin of color lamp.
6. LED color lamp driver according to claim 5 is characterized in that: use gel sets between the support of chip of described driver (IC) and described positive pin.
7. LED color lamp driver according to claim 5 is characterized in that: fix with insulating cement between the support of chip of described driver (IC) and described positive pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055100 CN2770271Y (en) | 2005-02-23 | 2005-02-23 | LED colour lamp driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055100 CN2770271Y (en) | 2005-02-23 | 2005-02-23 | LED colour lamp driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2770271Y true CN2770271Y (en) | 2006-04-05 |
Family
ID=36691316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055100 Expired - Fee Related CN2770271Y (en) | 2005-02-23 | 2005-02-23 | LED colour lamp driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2770271Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065277A1 (en) * | 2007-11-20 | 2009-05-28 | Chengchang Lai | Intelligent led full-color lamp group and decorate lamp bunch thereof |
| TWI384429B (en) * | 2008-05-28 | 2013-02-01 | Univ Nat Kaohsiung 1St Univ Sc | Led driving circuit, traffic signs applying on the driving circuit, traffic sign management system and method |
| CN106653976A (en) * | 2016-12-28 | 2017-05-10 | 深圳市质能达微电子科技有限公司 | Packaging structure of LED lamp bead and electric leakage detection method of packaging structure |
-
2005
- 2005-02-23 CN CN 200520055100 patent/CN2770271Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065277A1 (en) * | 2007-11-20 | 2009-05-28 | Chengchang Lai | Intelligent led full-color lamp group and decorate lamp bunch thereof |
| TWI384429B (en) * | 2008-05-28 | 2013-02-01 | Univ Nat Kaohsiung 1St Univ Sc | Led driving circuit, traffic signs applying on the driving circuit, traffic sign management system and method |
| CN106653976A (en) * | 2016-12-28 | 2017-05-10 | 深圳市质能达微电子科技有限公司 | Packaging structure of LED lamp bead and electric leakage detection method of packaging structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102892238B (en) | Dimming drive circuit of AC (Alternating Current) direct drive LED module | |
| CN102714898A (en) | LED lighting circuit | |
| CN102917516B (en) | Method for resolving excess temperature of constant current driving chips and light-emitting diode (LED) lamp bar driving circuit | |
| CN203748068U (en) | LED lamp intelligent dimming circuit | |
| CN102917518B (en) | Realize the method for LED lamp bar current multiplication and the drive circuit of correspondence thereof | |
| CN203027561U (en) | Alternating current driving device for LED (light-emitting diode) light source and LED bulb lamp | |
| CN2770271Y (en) | LED colour lamp driver | |
| CN201550329U (en) | Constant-current driving circuit of LED street lamp | |
| US9107254B2 (en) | Method and apparatus for LED lighting | |
| CN101922641A (en) | Constant current led module | |
| CN203757483U (en) | Self-adaption LED (Light Emitting Diode) down lamp | |
| CN105472818B (en) | A kind of LED illumination circuit | |
| CN205510462U (en) | LED lighting circuit | |
| CN202374531U (en) | White light-emitting diode (LED) drive circuit without electrolytic capacitor | |
| CN205389279U (en) | Light emitting diode (LED) driving power circuit | |
| CN105657891B (en) | A kind of LED drive power circuit | |
| CN105864654A (en) | Low-power-consumption cuttable constant-current LED lamp strip | |
| CN205782610U (en) | Light-emitting diode light bar cellular construction | |
| CN202931618U (en) | High luminous efficiency double arrow LED vehicle interior lamp circuit device | |
| CN203722879U (en) | Light-emitting device with light-emitting diode | |
| CN201733499U (en) | LED (light-emitting diode) driving device | |
| CN102137537A (en) | Muti-path controlled constant current LED (light-emitting diode) drive power | |
| CN2924999Y (en) | Temperature-brightness control constant current voltage-limiting WLED array lighting lamp | |
| CN208285601U (en) | A kind of linear LED line road of four sections of light engine light modulations | |
| CN205535181U (en) | LED integration lamp |
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: YAWEILANG PHOTOELECTRICITY( CHINA) CO., LTD. Free format text: FORMER OWNER: DONGTAISHENG ELECTRONICS( SHANGHAI ) CO., LTD. Effective date: 20100122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100122 Address after: Jiaxing City, Zhejiang province Haiyan bridge new highway 01 North Road East, H7 (KGI Zhejiang Bearing Co. Ltd. 2 buildings 201 rooms), zip code: 314300 Patentee after: InvenLux Photoelectronics (China) Co., Ltd. Address before: Room 3006, Pujiang building, 442 lane, Huaihai West Road, Shanghai, Changning District 85, China: 200052 Patentee before: East Sun Technology Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG LUXWORLD LIGHTING CO., LTD. Free format text: FORMER OWNER: INVENLUX OPTOELECTRONICS (CHINA) CO., LTD. Effective date: 20121010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121010 Address after: 210 room 2, building 1, 314300 Silver Beach Road, Haiyan Economic Development Zone, Zhejiang, China Patentee after: Zhejiang Luxworld Lighting Co., Ltd. Address before: Jiaxing City, Zhejiang province 314300 Haiyan Bridge District Highway 01 north, east of H7 Road (Zhejiang Bearing Co. Ltd. KGI 2 buildings 201 rooms) Patentee before: InvenLux Photoelectronics (China) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20130223 |