CN201919225U - High-efficiency high-power-factor LED lamp - Google Patents
High-efficiency high-power-factor LED lamp Download PDFInfo
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- CN201919225U CN201919225U CN2011201467357U CN201120146735U CN201919225U CN 201919225 U CN201919225 U CN 201919225U CN 2011201467357 U CN2011201467357 U CN 2011201467357U CN 201120146735 U CN201120146735 U CN 201120146735U CN 201919225 U CN201919225 U CN 201919225U
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- led lamp
- power factor
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model relates to a high-efficiency high-power-factor LED lamp, which comprises an input power source, an LED lamp source, a rectifying filter circuit, a passive power factor correction circuit and a constant current circuit. The rectifying filter circuit, the passive power factor correction circuit and the constant current circuit are sequentially connected between the input power source and the LED lamp source. The consumption power is low, the passive power factor correction circuit avoids over high voltage reduction and extra loss due to resistance, the constant current circuit realizes constant-current control of the LED lamp, and the service life of the LED lamp is greatly prolonged.
Description
Technical field
The utility model relates to a kind of LED lamp, particularly a kind of high efficiency High Power Factor LED lamp.
Background technology
The LED light fixture has characteristics such as energy-saving and environmental protection, life-span are long, easy to use to be used widely, and the efficient of LED lamp power supply directly has influence on the luminous light efficiency of LED lamp, and LED lamp efficient is high more, and LED light flux is big more, light efficiency is also high more, but the structure efficiency that design is adopted in the prior art is not high; Because the circuit structure problem, LED lamp power factor is not high.
Summary of the invention
Technical problem to be solved in the utility model is, the high efficiency High Power Factor LED lamp that a kind of efficient height is provided, has the reactive power compensation structure.
For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of high efficiency High Power Factor LED lamp, comprise input power supply, LED lamp source, current rectifying and wave filtering circuit, passive circuit of power factor correction, constant-current circuit, described current rectifying and wave filtering circuit, passive circuit of power factor correction and constant-current circuit are connected in turn between input power supply and the LED lamp source.
As a kind of improvement, described passive circuit of power factor correction includes first diode, second diode, the 3rd diode, first building-out capacitor, second building-out capacitor, described first building-out capacitor, second diode and second building-out capacitor are connected in turn between first output and second output of current rectifying and wave filtering circuit, described first diode cathode is connected between second diode and second building-out capacitor, described first diode cathode is connected in first output, described the 3rd diode cathode is connected in second output, and described the 3rd diode cathode is connected between first building-out capacitor and second diode.
As a kind of improvement, the current rectifying and wave filtering circuit input is provided with thermistor.
As a kind of improvement, be parallel with pressure-sensitive protective device between current rectifying and wave filtering circuit two inputs.
The utility model high efficiency High Power Factor LED lamp is provided with current rectifying and wave filtering circuit, passive circuit of power factor correction, constant-current circuit, efficient height on the whole, and dissipation power is little; Passive circuit of power factor correction was avoided high pressure drop and extra resistance consume; Constant-current circuit is realized the constant current control of LED lamp, the useful life of having improved LED greatly.
The utility model will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structured flowchart of the utility model high efficiency High Power Factor LED lamp;
Fig. 2 is the structural representation of Fig. 1 of the passive circuit of power factor correction of the utility model parts;
Fig. 3 is the structural representation of a kind of specific embodiments of Fig. 1.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of embodiment of high efficiency High Power Factor LED lamp, comprise input power supply 1, LED lamp source 2, current rectifying and wave filtering circuit 3, passive circuit of power factor correction 4, constant-current circuit 5, described current rectifying and wave filtering circuit 3, passive circuit of power factor correction 4 and constant-current circuit 5 are connected between input power supply 1 and the LED lamp source 2 in turn.LED is an energy-conserving product, it is high that whole efficiency is wanted, because the luminous efficiency of LED descends the efficient height of power supply along with the rising of LED temperature, its dissipation power is little, just little in light fixture internal heat generation amount, also just reduced the temperature rise of light fixture, the utility model is provided with current rectifying and wave filtering circuit, passive circuit of power factor correction, constant-current circuit, the efficient height of power supply, dissipation power is little, and is just little in light fixture internal heat generation amount, also just reduced the temperature rise of light fixture.The rational Application of electric energy requires economic generating, harmless transmission and distributes, and this just means will limit as far as possible that all cause the factor of electric energy consume in the electrical network.The utility model is provided with passive circuit of power factor correction 4, can reach more than 0.93 by the power factor that on some specific link, compensates hysteresis reactive power LED lamp with leading reactive power, improve the utilance of power supply unit, improve power transmission efficiency, improve power supply quality, can effectively utilize equipment, improve the transmission of electricity fail safe.The utility model is provided with constant-current circuit 5, and the LED lamp current is along with the serial number of LED lamp load changes, and electric current changes in 5%, realizes the constant current control of LED lamp, the useful life of having improved the LED lamp greatly.
A kind of improved embodiment, as Fig. 2, shown in Figure 3, described passive circuit of power factor correction 4 includes the first diode D1, the second diode D2, the 3rd diode D3, the first building-out capacitor E1, the second building-out capacitor E2, the described first building-out capacitor E1, the second diode D2 and the second building-out capacitor E2 are connected in turn between the first output 3a and the second output 3b of current rectifying and wave filtering circuit 3, the described first diode D1 positive pole is connected between the second diode D2 and the second building-out capacitor E2, the described first diode D1 negative pole is connected in the first output 3a, described the 3rd diode D3 positive pole is connected in the second output 3b, and described the 3rd diode D3 negative pole is connected between the first building-out capacitor E1 and the second diode D2.Utilize capacitances in series charging and the parallel discharge of the first building-out capacitor E1, the second building-out capacitor E2 to improve power factor.
A kind of improved embodiment, as shown in Figure 3, current rectifying and wave filtering circuit 3 inputs are provided with thermistor.Play superheat protecting function.
A kind of improved embodiment as shown in Figure 3, is parallel with pressure-sensitive protective device between 3 liang of inputs of current rectifying and wave filtering circuit.The overvoltage protection voltage of pressure-sensitive protective device is set to 470V.
Claims (7)
1. high efficiency High Power Factor LED lamp, it is characterized in that comprising input power supply (1), LED lamp source (2), current rectifying and wave filtering circuit (3), passive circuit of power factor correction (4), constant-current circuit (5), described current rectifying and wave filtering circuit (3), passive circuit of power factor correction (4) and constant-current circuit (5) are connected in turn between input power supply (1) and the LED lamp source (2).
2. high efficiency High Power Factor LED lamp according to claim 1, it is characterized in that described passive circuit of power factor correction (4) includes first diode (D1), second diode (D2), the 3rd diode (D3), first building-out capacitor (E1), second building-out capacitor (E2), described first building-out capacitor (E1), second diode (D2) and second building-out capacitor (E2) are connected in turn between first output (3a) and second output (3b) of current rectifying and wave filtering circuit (3), described first diode (D1) positive pole is connected between second diode (D2) and second building-out capacitor (E2), described first diode (D1) negative pole connects first output (3a), anodal second output (3b) that connects of described the 3rd diode (D3), described the 3rd diode (D3) negative pole is connected between first building-out capacitor (E1) and second diode (D2).
3. high efficiency High Power Factor LED lamp according to claim 1 and 2 is characterized in that described current rectifying and wave filtering circuit (3) input is provided with thermistor.
4. high efficiency High Power Factor LED lamp according to claim 1 and 2 is characterized in that being parallel with pressure-sensitive protective device between described current rectifying and wave filtering circuit (3) two inputs.
5. high efficiency High Power Factor LED lamp according to claim 3 is characterized in that being parallel with pressure-sensitive protective device between described current rectifying and wave filtering circuit (3) two inputs.
6. high efficiency High Power Factor LED lamp according to claim 4 is characterized in that the overvoltage protection voltage of described pressure-sensitive protective device is set to 470V.
7. high efficiency High Power Factor LED lamp according to claim 5 is characterized in that the overvoltage protection voltage of described pressure-sensitive protective device is set to 470V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201467357U CN201919225U (en) | 2011-05-10 | 2011-05-10 | High-efficiency high-power-factor LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201467357U CN201919225U (en) | 2011-05-10 | 2011-05-10 | High-efficiency high-power-factor LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201919225U true CN201919225U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201467357U Expired - Fee Related CN201919225U (en) | 2011-05-10 | 2011-05-10 | High-efficiency high-power-factor LED lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN201919225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633827A (en) * | 2012-08-27 | 2014-03-12 | 财团法人工业技术研究院 | Passive power factor correction circuit, electronic device using same and operation method |
| WO2021253243A1 (en) * | 2020-06-16 | 2021-12-23 | Redisem Ltd. | Power converter, controller, and methods |
-
2011
- 2011-05-10 CN CN2011201467357U patent/CN201919225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633827A (en) * | 2012-08-27 | 2014-03-12 | 财团法人工业技术研究院 | Passive power factor correction circuit, electronic device using same and operation method |
| US9343956B2 (en) | 2012-08-27 | 2016-05-17 | Industrial Technology Research Institute | Passive power factor correction circuit, electronic device applying the same and operation methods thereof |
| WO2021253243A1 (en) * | 2020-06-16 | 2021-12-23 | Redisem Ltd. | Power converter, controller, and methods |
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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: 20110803 Termination date: 20130510 |