CN204335088U - A kind of Campatible LED energy-saving fluorescent lamp tube - Google Patents
A kind of Campatible LED energy-saving fluorescent lamp tube Download PDFInfo
- Publication number
- CN204335088U CN204335088U CN201520010004.8U CN201520010004U CN204335088U CN 204335088 U CN204335088 U CN 204335088U CN 201520010004 U CN201520010004 U CN 201520010004U CN 204335088 U CN204335088 U CN 204335088U
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- Prior art keywords
- module
- campatible
- led
- processing unit
- fluorescent lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a kind of Campatible LED energy-saving fluorescent lamp tube.Comprise fluorescent tube and be arranged at the pcb board in fluorescent tube, pcb board is provided with LED lamp drive circuit, and LED lamp drive circuit comprises processing unit, filtration module, rectification module, current sample module, voltage sample module, constant flow module and the first to the 2nd LDO reference voltage module; Described processing unit and described current sample module, voltage sample module and a LDO reference voltage model calling, the PWM output of described processing unit is connected to load LED through described constant flow module, and constant flow module is also connected to described 2nd LDO reference voltage module; Also comprise the first and second ac input ends being connected to ballast, described first and second ac input ends are all connected with described processing unit through described rectification module, filtration module.The utility model directly can be applied without the need to doing circuit change on original fluorescent tube circuit, can use, convenient and reliable.
Description
Technical field
The utility model relates to field of LED drive, particularly a kind of Campatible LED energy-saving fluorescent lamp tube.
Background technology
The utilization rate of current conventional fluorescent fluorescent tube in commercial lighting market, North America is also very high, uses maximum lamps to be all fluorescent lamp in various place.Although fluorescent lamp is also energy-conservation, inside, but containing the heavy metal substance such as mercury, fluorescent material, is known from experience environment and people and is damaged.Due to current fluorescent tube, all with a kind of inductance or electric ballast, and the environmental protection of today, energy-conservation, long-life LED lamp tube is difficult to the fluorescent tube of these electronics completely compatible or Inductive ballast, therefore usually many times need carry out whole lamp replacing or carry out track remodelling between support and ballast, cost is higher.
The application for North America market put forth effort to research and develop a can the LED lamp pipe of directly compatible electronic ballast and inductance ballast, this compatible fluorescent lamp allows user without rewiring or changes original fluorescent lamp line construction, need the just operation as more changing the bulb done, whole process is very simple.The direct replacement of its applicable all fluorescent tube.
Summary of the invention
The purpose of this utility model is that provide a kind of directly can apply without the need to doing circuit change on original fluorescent tube circuit, can use, convenient and reliable Campatible LED energy-saving fluorescent lamp tube.
For achieving the above object, the technical solution of the utility model is: a kind of Campatible LED energy-saving fluorescent lamp tube, comprise fluorescent tube and be arranged at the pcb board in described fluorescent tube, described pcb board is provided with LED lamp drive circuit, and described LED lamp drive circuit comprises processing unit, filtration module, rectification module, the current sample module for Gather and input current signal, the voltage sample module for Gather and input voltage signal, constant flow module and the first to the 2nd LDO reference voltage module; Described processing unit and described current sample module, voltage sample module and a LDO reference voltage model calling, the PWM output of described processing unit is connected to load LED through described constant flow module, and described constant flow module is also connected to described 2nd LDO reference voltage module; Also comprise the first and second ac input ends being connected to ballast, described first and second ac input ends are all connected with described processing unit through described rectification module, filtration module.
In the utility model embodiment, between described first ac input end and described rectification module, be also provided with the first switch.
In the utility model embodiment, between described second ac input end and described rectification module, be also provided with second switch.
In the utility model embodiment, a described LDO reference voltage module adopts HT7550 chip.
In the utility model embodiment, described 2nd LDO reference voltage module adopts HT7550 chip.
In the utility model embodiment, described ballast is Inductive ballast or electric ballast.
Compared to prior art, the utility model has following beneficial effect: the utility model directly can be applied without the need to doing circuit change on original fluorescent tube circuit, can use, convenient and reliable.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is specifically described.
As shown in Figure 1, a kind of Campatible LED energy-saving fluorescent lamp tube of the present utility model, comprise fluorescent tube and be arranged at the pcb board in described fluorescent tube, described pcb board is provided with LED lamp drive circuit, and described LED lamp drive circuit comprises processing unit, filtration module, rectification module, the current sample module for Gather and input current signal, the voltage sample module for Gather and input voltage signal, constant flow module and the first to the 2nd LDO reference voltage module; Described processing unit and described current sample module, voltage sample module and a LDO reference voltage model calling, the PWM output of described processing unit is connected to load LED through described constant flow module, and described constant flow module is also connected to described 2nd LDO reference voltage module; Also comprise the first and second ac input ends being connected to ballast (described ballast is Inductive ballast or electric ballast), described first and second ac input ends are all connected with described processing unit through described rectification module, filtration module.
Switch for ease of exchanging input, prevent because an interchange input damage causes LED energy-saving fluorescent lamp tube to work, also be provided with the first switch between described first ac input end and described rectification module, between described second ac input end and described rectification module, be also provided with second switch.
In the present embodiment, described first and second LDO reference voltage modules all adopt HT7550 chip.
Specific works principle of the present utility model is as follows:
Due to the fluorescent lamp of different capacity, its voltage can from 400V-1000V not etc., wherein the output frequency of inductor rectifier is 50-60Hz, the ballast of electronics has 20K-60KHz not, so the change that LED drive power must bear high voltagehigh frequency could normally work, so we are according to this characteristic of ballast, adopt processing unit, identify different ballasts according to the different frequency of input.Front end adopts the rectification module of the composition of Schottky junction structure that the alternating voltage integer of the low of 50Hz-60KHz or high-frequency and high-voltage is become direct voltage, exported by processing unit control PWM and adjust output voltage, stable output voltage, the moment simultaneously controlling LED load connects, to utilize on ballast band after load, its output voltage can carry out constant current along with reduction, constant current is frequency and the duty ratio of carrying out adjusting output by the function of the PWM of constant flow module, by the gentle current balance type of voltage that exports on the LED of the various different capacities required for us, thus reach the object of the homeostasis of LED current.As long as electric current and voltage can be constant, the brightness of LED can be balanced, and its life-span just can be more permanent.Whole system band overload flow defencive function, when inputting or export overrate, system will automatically reset, and ensure that the reliability of product better.
Be more than preferred embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection range of the present utility model.
Claims (6)
1. a Campatible LED energy-saving fluorescent lamp tube, comprise fluorescent tube and be arranged at the pcb board in described fluorescent tube, it is characterized in that: described pcb board is provided with LED lamp drive circuit, described LED lamp drive circuit comprises processing unit, filtration module, rectification module, the current sample module for Gather and input current signal, the voltage sample module for Gather and input voltage signal, constant flow module and the first to the 2nd LDO reference voltage module; Described processing unit and described current sample module, voltage sample module and a LDO reference voltage model calling, the PWM output of described processing unit is connected to load LED through described constant flow module, and described constant flow module is also connected to described 2nd LDO reference voltage module; Also comprise the first and second ac input ends being connected to ballast, described first and second ac input ends are all connected with described processing unit through described rectification module, filtration module.
2. a kind of Campatible LED energy-saving fluorescent lamp tube according to claim 1, is characterized in that: be also provided with the first switch between described first ac input end and described rectification module.
3. a kind of Campatible LED energy-saving fluorescent lamp tube according to claim 1, is characterized in that: be also provided with second switch between described second ac input end and described rectification module.
4. a kind of Campatible LED energy-saving fluorescent lamp tube according to claim 1, is characterized in that: a described LDO reference voltage module adopts HT7550 chip.
5. a kind of Campatible LED energy-saving fluorescent lamp tube according to claim 1, is characterized in that: described 2nd LDO reference voltage module adopts HT7550 chip.
6. a kind of Campatible LED energy-saving fluorescent lamp tube according to claim 1, is characterized in that: described ballast is Inductive ballast or electric ballast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010004.8U CN204335088U (en) | 2015-01-08 | 2015-01-08 | A kind of Campatible LED energy-saving fluorescent lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010004.8U CN204335088U (en) | 2015-01-08 | 2015-01-08 | A kind of Campatible LED energy-saving fluorescent lamp tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204335088U true CN204335088U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520010004.8U Expired - Fee Related CN204335088U (en) | 2015-01-08 | 2015-01-08 | A kind of Campatible LED energy-saving fluorescent lamp tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN204335088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894805A (en) * | 2017-05-09 | 2018-04-10 | 何金昌 | A kind of power module for including reference voltage circuit |
| CN110493914A (en) * | 2019-08-14 | 2019-11-22 | 广州竟合电子科技有限公司 | A kind of car light constant current driving device and its manufacturing method |
-
2015
- 2015-01-08 CN CN201520010004.8U patent/CN204335088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894805A (en) * | 2017-05-09 | 2018-04-10 | 何金昌 | A kind of power module for including reference voltage circuit |
| CN110493914A (en) * | 2019-08-14 | 2019-11-22 | 广州竟合电子科技有限公司 | A kind of car light constant current driving device and its manufacturing method |
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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: 20150513 Termination date: 20200108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |