CN201878364U - Improved output non-electrolytic capacitance circuit - Google Patents
Improved output non-electrolytic capacitance circuit Download PDFInfo
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- CN201878364U CN201878364U CN2010206027823U CN201020602782U CN201878364U CN 201878364 U CN201878364 U CN 201878364U CN 2010206027823 U CN2010206027823 U CN 2010206027823U CN 201020602782 U CN201020602782 U CN 201020602782U CN 201878364 U CN201878364 U CN 201878364U
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- electrolytic capacitor
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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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Abstract
The utility model relates to an improved output non-electrolytic capacitance circuit, which comprises a voltage transformer coil, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, an inductor, an non-electrolytic capacitor and a resistor. Secondary-side current of the voltage transformer coil passes through a loop which is formed by sequentially connecting the first diode and the inductor in series, one end of the inductor is connected to two ends of the resistor respectively by the second diode and the third diode, the other end of the inductor is connected with the two ends of the resistor respectively by the fifth diode and the fourth diode, the two ends of the resistor are respectively used as a '+' output electrode and a '-' output electrode of the circuit, and the non-electrolytic capacitor is connected with the resistor in parallel. The improved output non-electrolytic capacitance circuit is realized by the aid of the non-electrolytic capacitor and the diodes, can realize miniaturization and low cost due to omission of an electrolytic capacitor, and realizes long service life and high efficiency of an LED lamp. In addition, the service life of the improved output non-electrolytic capacitance circuit is as long as 80000 hours averagely, and the industrial difficult problem that the service life of an LED light source and the service life of a driving power source do not match with each other is effectively solved.
Description
Technical field
The utility model relates to LED driving power field, relates in particular to the output no electrolytic capacitor circuit that is applicable to the LED driving power.
Background technology
Under the background that the worry of current global energy shortage raises once again, energy savings is the major issue that will face future.At lighting field, the application of LED luminous product is just attracting common people's sight, LED is as a kind of novel green light source product, having high energy-conservation (the equal illumination effect is more energy-conservation more than 80% than conventional light source), a long-life (can reach 60,000 to 100,000 hours useful life, longer more than 10 times than the conventional light source life-span) etc. good characteristic, must be developing tendency in future.So the driving power of LED as the core of LED illuminator, has also just had higher requirement to aspects such as its conversion efficiency, the adjusting of output current intelligence, cost, reliabilities.
The working life of the driving power of common LED illumination at present depends on the electrochemical capacitor that smoothing circuit must adopt when changeing DC.This is because LED is the direct current driven element, when AC power supplies is connected, generally be to use the DC stabilization power supply in rectifier cell and level and smooth loop, electrochemical capacitor necessary in this level and smooth loop can rise 10 ℃ because of temperature and the heating of self on every side, and cause the life-span to reduce by half, so electrochemical capacitor has hindered the life-span of LED ligthing paraphernalia.The working life of LED is up to more than 50,000 hours, and the life-span of electrochemical capacitor has only several thousand hours, analyzes according to " Law of Barrel ", and the reliability of LED lamp power supply adaptor depends on the wherein the poorest part of reliability, i.e. electrochemical capacitor.Because the life-span of system is to be decided by the life-span of the electrochemical capacitor that uses in the power supply module, if idea is not taken away electrochemical capacitor, the life-span of the life-span of LED illumination driving power and LED does not just match very much so, just is difficult to give play to the long service live advantage of LED illumination yet.
So only take circuit without electrochemical capacitor, just might fundamentally solve existing short problem of LED lamp power supply adaptor life-span, could actual production go out and can mate with the LED long-life, also can reach tens thousand of hours LED lamp power supply adaptor useful life.This also be why recently industry always in the main cause of the LED of active development no electrolytic capacitor illumination driving power.
The utility model content
The purpose of this utility model is to overcome the weak point of above-mentioned existing LED illumination driving power, thereby a kind of modified model output no electrolytic capacitor circuit is provided, and solves the problem that life-span of electrochemical capacitor can't must join with the LED life-span.
The technical solution of the utility model is as follows:
A kind of modified model output no electrolytic capacitor circuit comprises transformation coil, first diode, second diode, the 3rd diode, the 4th diode, the 5th diode, inductance, polarity free capacitor and resistance; The loop that the secondary side current of described transformation coil is connected in series successively and constitutes through first diode and inductance; One end of described inductance connects the two ends of resistance respectively through second diode and the 3rd diode, the other end of inductance connects the two ends of resistance respectively through the 5th diode and the 4th diode; The two ends of described resistance are as "+" output stage and "-" output stage of circuit; Described polarity free capacitor is in parallel with resistance; "+" output stage of the negative pole connecting circuit of described second diode, the 5th diode, "-" output stage of the anodal connecting circuit of described the 3rd diode, the 4th diode.
Useful technique effect of the present utility model is:
The utility model adopts polarity free capacitor and diode to realize, can realize miniaturization because of removing electrochemical capacitor, low cost, and realized long-life of LED lamp and high-effect.The working life of product all reaches 80,000 hours, has effectively overcome a unmatched industry difficult problem of led light source and driving power life-span.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises transformation coil T, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, inductance L, polarity free capacitor C and resistance R.The loop that the secondary side current of transformation coil T is connected in series successively and constitutes through the first diode D1 and inductance L.One end of inductance L connects the two ends of resistance R respectively through the second diode D2 and the 3rd diode D3, the other end of inductance L connects the two ends of resistance R respectively through the 5th diode D5 and the 4th diode D4.The two ends of resistance R are as "+" output stage and "-" output stage of circuit.Polarity free capacitor C is in parallel with resistance R."+" output stage of the negative pole connecting circuit of the second diode D2, the 5th diode D5, "-" output stage of the anodal connecting circuit of the 3rd diode D3, the 4th diode D4.
Above-described components and parts are the commercial goods.The first diode D1 in the present embodiment can replace with field effect transistor, the second diode D2, the 3rd diode D3, the also all available field effect transistor of the 4th diode D4, the 5th diode D5 replace forming synchronous rectification or an available rectifier bridge replaces, and the function that is realized is identical.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (1)
1. a modified model output no electrolytic capacitor circuit is characterized in that: comprise transformation coil (T), first diode (D1), second diode (D2), the 3rd diode (D3), the 4th diode (D4), the 5th diode (D5), inductance (L), polarity free capacitor (C) and resistance (R); The loop that the secondary side current of described transformation coil (T) is connected in series successively and constitutes through first diode (D1) and inductance (L); One end of described inductance (L) connects the two ends of resistance (R) respectively through second diode (D2) and the 3rd diode (D3), the other end of inductance (L) connects the two ends of resistance (R) respectively through the 5th diode (D5) and the 4th diode (D4); The two ends of described resistance (R) are as "+" output stage and "-" output stage of circuit; Described polarity free capacitor (C) is in parallel with resistance (R); "+" output stage of the negative pole connecting circuit of described second diode (D2), the 5th diode (D5), "-" output stage of the anodal connecting circuit of described the 3rd diode (D3), the 4th diode (D4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206027823U CN201878364U (en) | 2010-11-09 | 2010-11-09 | Improved output non-electrolytic capacitance circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206027823U CN201878364U (en) | 2010-11-09 | 2010-11-09 | Improved output non-electrolytic capacitance circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878364U true CN201878364U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206027823U Expired - Fee Related CN201878364U (en) | 2010-11-09 | 2010-11-09 | Improved output non-electrolytic capacitance circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201878364U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438379A (en) * | 2012-01-06 | 2012-05-02 | 昆山市华英精密模具工业有限公司 | LED (Light Emitting Diode) driving power supply |
| CN104006311A (en) * | 2013-02-27 | 2014-08-27 | 北京艾久瓦光电科技有限公司 | Oil cooling light emitting diode (LED) candle lamp |
-
2010
- 2010-11-09 CN CN2010206027823U patent/CN201878364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438379A (en) * | 2012-01-06 | 2012-05-02 | 昆山市华英精密模具工业有限公司 | LED (Light Emitting Diode) driving power supply |
| CN104006311A (en) * | 2013-02-27 | 2014-08-27 | 北京艾久瓦光电科技有限公司 | Oil cooling light emitting diode (LED) candle lamp |
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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: 20110622 Termination date: 20131109 |