CN203340370U - LED lamp capable of adjusting color temperature - Google Patents
LED lamp capable of adjusting color temperature Download PDFInfo
- Publication number
- CN203340370U CN203340370U CN2013203948223U CN201320394822U CN203340370U CN 203340370 U CN203340370 U CN 203340370U CN 2013203948223 U CN2013203948223 U CN 2013203948223U CN 201320394822 U CN201320394822 U CN 201320394822U CN 203340370 U CN203340370 U CN 203340370U
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- Prior art keywords
- lamp pearl
- led lamp
- circuit
- color temperature
- control
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Abstract
The utility model discloses an LED lamp capable of adjusting color temperature. The LED lamp comprises a power supply circuit, a control circuit and LED lamp beads, wherein the power supply circuit provides constant-current drive for an LED lamp bead group and provides direct-current power for the control circuit. The LED lamp is characterized in that the power supply circuit controls current with a triode, and the control circuit controls change of current output according to the properties of a sectional circuit. The color temperature can be adjusted to be 6500K, 2700K and 4500K by continuously controlling an original lamp switch for three times, a reset circuit is built in the LED lamp, the interval between switching on and switching off is more than 5 seconds, the light color of a down lamp is reset to 6500K, and three switches are combined into one, which makes the LED lamp beautiful, wire-saving and simple to install.
Description
Technical field
The utility model relates to the LED lighting technical field, especially a kind of LED light fixture of adjustable color temperature.
Background technology
Along with growth in the living standard, the hommization of house fitting-up and sophistication require also to increase substantially to room lighting, how to greatest extent the indoor environment of sealing to be modeled as to the natural lighting environment, become the target that people pursue.In the PEs such as business and office, zones of different is to illumination colour temperature and brightness demand difference.On market, existing LED bulb lamp, Down lamp are all generally to adopt lamp form of the same colour, and the consumer needs the LED lamp of any colour temperature, just buys the LED lamp of any colour temperature.The consumer often must install one group of light fixture more, so not only increases and decreases purchase cost, in installation process, comprises that circuit, switch setting also must pay many expense.Power supply and the light source of the utility model LED lamp of the same colour to an existing lamp are improved, and a kind of LED light fixture of adjustable color temperature is provided, and on original wiring system without any impact, without rewiring.The user directly controls original lamp lamp switch of the same colour, can regulate colour temperature, has both met user's individual demand, has saved again purchase cost and mounting cost.The original lamp switch of continuous control three times, colour temperature can be adjusted to successively, 6500K, 2700K, 4500K, built-in reset circuit, more than turn-off opening interval 5S, the photochromic 6500K that is reset to of Down lamp, it is one that switch closes three, attractive in appearance, economize electric wire, install simple.
The utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of LED light fixture of adjustable color temperature, advantage with low cost to realize, simple to operate.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of LED light fixture of adjustable color temperature, comprise power circuit, control circuit, LED lamp pearl, described power circuit drives for LED lamp pearl group provides constant current, for control circuit provides DC power supply, it is characterized in that described power circuit uses triode to control electric current, control circuit is by the variation of the Characteristics Control electric current output of segment circuit.
Further, described control circuit uses the characteristic of the multi-functional segment circuit of TC2608 to control the variation of electric current output, uses photoelectrical coupler as isolating switch.
Further, described power circuit uses isolated drive circuit, uses transistor amplifier to connect photoelectrical coupler, reaches the purpose of " the large electric current of Small current control ", for LED lamp pearl provides constant current, drives.
Further, described LED lamp pearl group is comprised of the lamp pearl of two kinds of different-colours, and the lamp pearl connection in series-parallel form of two kinds of different-colours is identical, shares a positive pole, and negative pole separately.
Further, described LED lamp pearl group inner ring lamp pearl is used 6500K5630 lamp pearl, and outer ring lamp pearl is used 2700K5630 lamp pearl.
Effect of the present utility model is: by increasing the circuit of adjustable current multiplication factor, but realized the regulatory function of output current, only need to control by outside switch, can control output end be just the light on and off of the Lights section two street lamp pearls, thereby reach the adjusting that changes whole lamp color temperature, without increasing in addition circuit and switch, easy to install, can directly replace and embed the switch installed on wall, without the quantity of rewiring or interpolation electric wire, simple and practical.In order more clearly to set forth circuit feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, be described in detail.
The accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
In accompanying drawing:
L, N: power unit input.
V+: power unit cathode output end.
V-1: the power unit negative pole is exported 1 end.
V-2: the power unit negative pole is exported 2 ends.
+: the Lights section positive pole.
-1: the Lights section negative pole 1.
-2: the Lights section negative pole 2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1:
Power circuit:
1, this part electric current is as the light source power supply circuit: adopt the isolated constant-current circuit of BP3122, wide voltage input AC85 ~ 265V, 50HZ, through the rectifier bridge stack rectification, through the filtering dividing potential drop, to chip U2, power, through transformer pressure-reducing, rectification output again, V+ very exports common port, the output constant current electric current.
2,, due to optocoupler IF=50mA, so need through the electric resistance partial pressure current limliting, power circuit output end just can connect optocoupler (A1, A2) 4 pin.
3, because needing the constant current of 280mA, light source drives, so need triode to form amplifying circuit.Power circuit output negative terminal connects triode (Q1, Q2) E pin, and triode (Q1) B pin meets respectively output colour temperature 6500K light source negative terminal V-1, and triode (Q2) B pin meets output 2700K light source negative terminal V-2.
Control circuit: chip U1 TC2608 block switch circuit, adopt the capacitance-resistance pressure drop, through the rectifier bridge stack rectification, through voltage-stabiliser tube D1 voltage stabilizing 5V, through the D2 rectification, to TC2608 VCC power supply (5 pin) end, power, TC and photoelectrical coupler (A1, A2) EL817 power supply, 2,7,8 pin of TC2608, be output control terminal, the utility model adopts 2,8 two outputs, TC2608 operating voltage range wide (VDD=3V～18V), therefore control circuit is supported AC85 ~ 265V, the input of 50HZ.
The utility model course of work is as follows:
Open for the first time, input AC electricity AC85 ~ 265V, chip is in running order, and now, 2 pin are connected, and optocoupler (A1) 1 ~ 2 pin has electric current to pass through, and 4 to 3 pin are in conducting state.Make triode (Q1) in running order, B pin output current, drive the 6500K light source luminescent.
Open for the second time, input AC electricity AC85 ~ 265V, chip is in running order, and now, 8 pin are connected, and optocoupler (A2) 1 ~ 2 pin has electric current to pass through, and 4 to 3 pin are in conducting state.Make triode (Q2) in running order, B pin output current, drive the 2700K light source luminescent.
Open for the third time, input AC electricity AC85 ~ 265V, chip is in running order, and now, 2,8 pin are connected simultaneously, and optocoupler (A1, A2) 1 ~ 2 pin has electric current to pass through, and 4 to 3 pin are in conducting state.Make triode (Q1, Q2) in running order, B pin output current, drive 6500K, 2700K light source luminescent simultaneously.
Open for the 4th time, operating state resets to for the first time.Twice switch gap should be greater than 5 seconds in 5 seconds, and operating state resets to for the first time.
The above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (5)
1. the LED light fixture of an adjustable color temperature, comprise power circuit, control circuit, LED lamp pearl, described power circuit drives for LED lamp pearl group provides constant current, for control circuit provides DC power supply, it is characterized in that described power circuit uses triode to control electric current, control circuit is by the variation of the Characteristics Control electric current output of segment circuit.
2. the LED light fixture of adjustable color temperature according to claim 1, is characterized in that described control circuit uses the characteristic of the multi-functional segment circuit of TC2608 to control the variation of electric current output, uses photoelectrical coupler as isolating switch.
3. the LED light fixture of adjustable color temperature according to claim 1, it is characterized in that: described power circuit uses isolated drive circuit, use transistor amplifier to connect photoelectrical coupler, reach the purpose of " the large electric current of Small current control ", drive for LED lamp pearl provides constant current.
4. according to the LED light fixture of claim 1,2 or 3 described adjustable color temperature, it is characterized in that: described LED lamp pearl group is comprised of the lamp pearl of two kinds of different-colours, and the lamp pearl connection in series-parallel form of two kinds of different-colours is identical, shares a positive pole, and negative pole separately.
5. the LED light fixture of adjustable color temperature according to claim 4, is characterized in that: described LED lamp pearl group inner ring lamp pearl use 6500K5630 lamp pearl, outer ring lamp pearl use 2700K5630 lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203948223U CN203340370U (en) | 2013-07-04 | 2013-07-04 | LED lamp capable of adjusting color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203948223U CN203340370U (en) | 2013-07-04 | 2013-07-04 | LED lamp capable of adjusting color temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203340370U true CN203340370U (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203948223U Expired - Fee Related CN203340370U (en) | 2013-07-04 | 2013-07-04 | LED lamp capable of adjusting color temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203340370U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672798A (en) * | 2013-12-13 | 2014-03-26 | 广东酷柏光电股份有限公司 | Adjustable-light daylight lamp controlled by section switch |
| CN103672799A (en) * | 2013-12-13 | 2014-03-26 | 广东酷柏光电股份有限公司 | Adjustable-light down light controlled by section switch |
| WO2016095494A1 (en) * | 2014-12-15 | 2016-06-23 | 深圳市启明和丰照明科技有限公司 | Led silicon controlled rectifier intelligent power supply and led lamp having color temperature adjustment function |
| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
-
2013
- 2013-07-04 CN CN2013203948223U patent/CN203340370U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672798A (en) * | 2013-12-13 | 2014-03-26 | 广东酷柏光电股份有限公司 | Adjustable-light daylight lamp controlled by section switch |
| CN103672799A (en) * | 2013-12-13 | 2014-03-26 | 广东酷柏光电股份有限公司 | Adjustable-light down light controlled by section switch |
| WO2016095494A1 (en) * | 2014-12-15 | 2016-06-23 | 深圳市启明和丰照明科技有限公司 | Led silicon controlled rectifier intelligent power supply and led lamp having color temperature adjustment function |
| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20180704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |