CN111479354A - Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof - Google Patents
Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof Download PDFInfo
- Publication number
- CN111479354A CN111479354A CN201910022620.8A CN201910022620A CN111479354A CN 111479354 A CN111479354 A CN 111479354A CN 201910022620 A CN201910022620 A CN 201910022620A CN 111479354 A CN111479354 A CN 111479354A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- rectifier
- rectifier diode
- power supply
- diode
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 50
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 14
- 230000008901 benefit Effects 0.000 description 12
- 230000006378 damage Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 10
- 230000000670 limiting effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A L ED power supply and its L ED lighting appliance are disclosed, which can directly use the no-interference low-cost long-life AC power supply and its L ED lighting appliance, the input end of AC power supply is connected with the resistance in parallel to prevent the surge voltage and surge current, the input end of AC power supply and bridge rectifier is connected with the capacitance isolation rectifier diode and L ED in series to make safety, the capacitance reactance, rectifier diode and L ED PN junction conducting resistance form the resistance-capacitance coupling circuit to filter, limit current, limit voltage and improve the power factor, which is used in AC circuit to supply various L ED power supply, its L ED lighting appliance is used as the driving power supply, L ED can adopt many combination modes such as single group, multiple group.
Description
Technical Field
The invention relates to an L ED power supply and an illumination L ED using the same as the power supply, in particular to a L ED power supply which has high power factor, no interference, no power consumption, no heat generation, energy conservation, environmental protection and long service life.
Background
L ED has high luminous efficiency, low self power consumption and heat generation, energy conservation and low carbon because the electricity-light conversion efficiency is as high as more than 80%, has the longest service life in all lighting sources, has no toxic and harmful substances, is easy to recycle and environment-friendly, has the service life of hundreds of thousands of hours, has the potential greatly improved, has the service life which is 50 times of the service life of an incandescent lamp for two thousand hours and 10 times of the service life of a halogen tungsten lamp, a xenon lamp and a fluorescent lamp for ten thousand hours, has a PN junction at a luminous part of L ED which is internally contained, is packaged by solid such as epoxy resin and is strongly fixed, has no suspended and weakly fixed filament and hot spot and is difficult to damage and scrap in advance like a filament lamp, so that the environmental pollution and the use cost are greatly reduced, has no visible infrared ray and ultraviolet ray of the incandescent lamp, the halogen tungsten lamp, the xenon lamp and the fluorescent lamp, has small volume, is easy to recycle and has no danger, has no continuous and no toxic infrared ray and no environmental pollution, and no harm, and no heavy metal pollution, and no environmental pollution, and no harm, and no pollution, so that the like all the national popularization of national high-cost of the bulb lamp is quickly realized.
However, since the single L ED, that is, the low-voltage electronic components with the operating voltage of the single PN junction only about 1.5-3 v in the region, the limit operating voltage, that is, the withstand voltage or reverse breakdown voltage, is only about 20 v, and the mains voltage is as high as 120 v and 240 v, the single self-load L ED or the self-load bridge rectifier circuit (actually, a half-wave rectifier circuit formed by connecting one L ED in series with an electrical appliance and then connecting the other L ED in series) cannot directly use the mains as the power supply, and must be specially manufactured and equipped with an energy conversion device for converting the high-voltage mains into the low-voltage power supply, commonly referred to as L ED (driving) power supply.
Because commercial power is low-frequency, such as 60 hz in the united states and 50 hz in china, and the volume, weight, consumables, power consumption (iron loss and copper loss) and heat generation of a conventional low-frequency iron core transformer are large, a frequency conversion technology is generally adopted, low-frequency high-voltage commercial power is rectified, filtered and converted into a high-voltage high-frequency power supply, then a high-frequency transformer made of a high-frequency magnetic core (small in volume, weight, power consumption and heat generation) material is used for reducing voltage and choking, and a high-frequency rectifier diode is used for rectifying low-voltage direct current to be output as a L ED power supply, so that the cost is increased inevitably to become a main obstacle for preventing L ED from being rapidly and widely used, because L ED is more expensive than a traditional light source, and is added with a quite L ED power supply, especially a high-power L ED accounting for 30-50%.
In addition, L ED power supply filter capacitor has large capacity, often exceeds hundreds of microfarads, and this must use electrolytic capacitor, but volume, weight and cost are difficult to reduce, but electrolytic capacitor is easy to dry out or/and easy to deteriorate and has short life because of electrolyte, this easily leads to L ED power failure and damage, makes L ED life-span advantage play nothing, thus make L ED leading cause-life-span advantage almost lose almost totally, even in fact still not as long as ordinary illumination light source life-span, because its life-span is short, its electricity cost of saving compares with its high cost of purchasing and changing nearly no advantage.
The conventional L ED power supply is forced to adopt a so-called automatic voltage limiting or/and current limiting, namely constant voltage/constant current power supply, and has a plurality of varieties and hundreds of types without perfect connection, but the conventional L ED power supply is not separated from the conventional L ED power supply, namely complicated links such as sampling, comparison, action and protection are required, however, the obvious common electrical engineering knowledge is that the conventional load, namely an electric appliance-L ED temperature rise is required to cause the resistance reduction and the current increase to be adopted, the sampling and other circuits and the protection functions thereof are activated to work, more importantly, the theory and the fact that after the L ED is damaged, the action of the protection circuit is caused, even if the protection is realized, the L ED temperature rise cannot be guaranteed, the complexity of various factors can not cause the heat dissipation and L ED temperature rise, the heat dissipation and PN junction temperature rise can be reduced, and the heat dissipation and PN junction temperature rise are reduced, and the heat dissipation and PN break down caused by the conventional heat dissipation and PN temperature limiting parameters are increased.
Furthermore, the variable frequency power supply has complex circuits and numerous components, the problems are more complicated and easier to occur according to probability theory common knowledge, the safety and stability are not only difficult to effectively increase but also easy to decrease, and the energy consumption per se not only increases the purchase and use cost, but also generates heat due to the energy consumption, and the L ED is also heated and damaged by the heat, so a heat dissipation device is required to be additionally added, thereby the cost, the volume and the weight are increased, particularly the high-power L ED power supply has the production and sale cost which is 30-50% of the total cost of L ED lamps, obviously, if the L ED power supply can be eliminated, the L ED can directly use the commercial power, the cost is greatly reduced naturally, the selling price is reduced greatly, the establishment can be successfully implemented, all the defects of the L ED power supply are synchronously and thoroughly overcome, and the whole L ED huge global market can be rapidly monopolized by the method, and the social, such as low carbon, energy conservation, environmental protection, science and economic benefits of the whole market can not be estimated.
Finally, the frequency conversion circuit generally converts the low-frequency commercial power which has almost no radiation capability and no interference into high-frequency power which has strong feedback and radiation capability and great interference, so that the high-frequency feedback enters the commercial power circuit and the radiation enters the surrounding space environment, both of which interfere the commercial power circuit and other electric appliances, the L ED power supply is no exception, the high-frequency power supply has great influence on a plurality of electric appliances, especially precision electric appliances, and even can cause the latter to malfunction to cause accidents or dangers, similar cases are not precedent and reported, and the frequency conversion circuit is not worth and attracts high attention without disease groaning or small-scale problem and is solved properly and reliably.
The brief introduction of the reference and the series of significant advantages thereof and the series of major problems to be solved urgently is as follows:
because the patent of the invention is the contrast document with the highest legal level, the invention particularly selects the patent of the invention which is most closely related to the patent of the invention to prove that the invention not only well realizes the series advantages of the background technology and the contrast document, but also solves the series problems of the background technology and the contrast document, and innovates the three properties, creativity, novelty and practicability required by the series patent law, namely the significant science and technology and the practical application advantages of the series which are obvious and outstanding.
The invention discloses a Chinese granted patent number Z L200410022763.2 invented by applicant and inventor teams of the application, which is named as an AC/DC power supply dual-purpose bridge type lighting light-emitting diode and a manufacturing method thereof, and is characterized in that a composite chip with 4 independent light-emitting PN junctions or a unit bridge type chip consisting of 4 single PN junction chips is used, 4 wiring pins are led out from each chip to realize the following AC/DC universal and combined application, wiring and connection requirements, the light-emitting dual-purpose bridge type lighting light-emitting diode and the manufacturing method thereof are used as a self-luminous self-load power supply and an electric appliance as well as a full-wave rectification DC power supply of L ED connected behind the self-luminous self-load power supply and the electric appliance, so that the problems that the L ED is low in voltage resistance and cannot directly use the mains supply and an L ED power supply is necessary to be used, and naturally not available, and equivalently to overcome and solve all disadvantages of the L ED power supply in the background art, and the AC/DC universal and various combined applications (see the following detailed application of AC/DC universal and parallel combination application) can be used as various lighting lamps and other light-emitting diodes or each unit bridge type light-emitting diode or each unit integrated circuit is independently applied or multiple series, parallel connection, series connection, parallel connection, serial connection.
Although the above mentioned references better solve the major scientific and application problems of the prior art, there are also the following major scientific and application problems.
First, although not a defect of the technical scheme of the reference, because the current single L ED and its PN junction are low voltage, and there is no high voltage L ED and its high voltage PN junction and new material, it has to be connected in series with numerous L EDs after its bridge rectifier circuit to directly bear and use the high voltage commercial power, which greatly limits its application range and market, for example, it is widely applied to the small power L ED light source with very large and lasting market, such as table lamp, traffic light, etc. with less L ED quantity.
Secondly, although the 4L EDs and PN junctions thereof used to form the bridge rectifier circuit can only use half-wave dc, the "persistence of vision-frequency of 24 hz and above, i.e. the movie and the principle thereof will not generate stroboflash, and the ac frequency of the commercial power is 50 or 60 hz" and is more than 24 hz, so that not only the stroboflash will not be felt and the vision will not be harmed, but also the electricity will be saved, i.e. the energy will be saved by 50%, but also the 4L ED luminous intensities, i.e. the brightness will be reduced, which will obviously affect the reduction of the illumination intensity when the brightness of the 4L ED beads or PN junctions is reduced in the L ED light source with a small number of L ED beads or PN junctions, such as the lamp, and the application field, the application and the market of the L ED are huge and durable, so that the problem of the present invention is needed to be solved.
In addition, as the mains supply is directly used without self-limiting voltage and self-limiting current functions, the circuit can not automatically limit the vicious circle caused by the natural and automatic following increase of voltage and current when the internal resistance of a PN junction is reduced due to the rising of the luminous PN junction temperature: temperature rise-resistance drop-current rise-temperature rise, and therefore, it is necessary to provide a heat dissipating material having excellent heat dissipating performance and a heat dissipating device having a heat dissipating volume and area large enough to ensure that the amount of heat generated per unit time is smaller than the amount of heat dissipated, thereby ensuring that the above-described vicious cycle is not generated and/or blocked immediately and safety is ensured, but obviously, this necessarily increases the volume, weight, and cost thereof.
Furthermore, it is vulnerable to transient strong impacts such as over-voltage-surge voltage and over-current-surge current, which are frequently generated, such as power grid fluctuations, lightning strikes, etc., as many current L ED power sources do not have the function and ability to withstand.
Disclosure of Invention
The purpose of the invention is as follows:
the invention provides an L ED power supply which directly uses commercial power, has no interference, low cost and long service life and a L ED lighting appliance thereof, aiming at solving a series of problems which cannot be solved but are urgently needed in the prior art.
The technical scheme is as follows:
a resistor is connected in parallel with the head end of a mains supply input circuit to serve as a voltage clamp resistor, voltage is clamped for the first time, a capacitor is connected in series with a power supply to cut off the connection between the power supply and a diode and L ED, current is limited, power factors are improved, voltage is clamped again, the capacitor and the power supply are connected in series to form a L ED power supply product together with a bridge rectifier formed by the rectifier diode, the capacitor and the diode and a diode form a L ED lighting product with various purposes, compared with the traditional L ED power supply, the L ED power supply improves L ED heat dissipation conditions due to the fact that no energy is consumed, no heat is generated, no heat dissipation device is needed, and a heat dissipation space is left out to improve the heat dissipation capacity of the L ED power supply, so that temperature rise is prevented, service life is prolonged, and the.
The resistor can select the type and specification of the piezoresistor according to the commercial power voltage and the protection trigger voltage threshold of the piezoresistor in different countries or regions, for example, the 471K zinc oxide piezoresistor can be selected in the region with the commercial power voltage of 220V in China or the region with the commercial power voltage of 220V.
Considering that most countries and regions implement normal fluctuation range of the grid voltage within the legal allowable range of plus and minus 5-10%, the withstand voltage of the capacitor is selected to be equal to or slightly higher (such as 10%) than the upper limit of the local legal voltage value, and not lower than, but not higher than, the upper limit of the local legal voltage value, thereby ensuring safety, and reducing manufacturing cost and product volume and weight, the main basis of the selection and the standards and necessities is that the legal grid voltage is lower than or exceeds the legal allowable range and any damage and loss due to the legal allowable range, the power supplier is responsible for and fully compensates, so that the power supplier has self-control plans and measures to prevent the occurrence thereof, i.e. the power supply safety factor and margin are reserved higher and more reliably, the probability of occurrence of a major power supply accident and damage is extremely low, so that no worry about the safety is generally taken.
The selection of the rectifier diodes is based on the above-mentioned series selection principle, for example, the 220V power grid area can be selected in the range of 1N4001-1N4007, because each RMB only has a few cents of money, only 4 RMB are needed in total, and the price difference and the cost are completely negligible.
L the number and power of the EDs and the way of connecting them to each other and to the bridge stack are various alternatives, and it is suggested that FIGS. 1-5 and their description and implementation and description are all relevant, and although it is limited to space only to 2 and 2 groups L EDs, the disclosed working principle, circuit and implementation are explicitly disclosed and include but not limited to 2, for example, L EDs can be used alone, in series, parallel or both in series and parallel, in groups, in single group, in series, parallel or both, in parallel, in combination with DC power supply, in series, parallel or both, in parallel, etc., and the specific matching selection decision and the selection can be made by referring to design power and L ED withstand voltage and normal operating current, and selecting the capacitor matching with it.
The technical scheme of the invention is implemented and completed by the components according to the circuit schematic diagrams of figures 1-5 and the connection mode and the connection sequence which are described in detail one by one in figures 1-5 in the specification of the invention.
Has the advantages that:
1. the piezoresistor is not conducted under the normal working condition, is in a cut-off and closed state and does not consume energy or generate heat, the voltage is synchronously conducted once exceeding a trigger threshold value and is divided into partial voltage and shunt, and is synchronously cut off once being lower than the trigger threshold value voltage and is recovered to the normal working condition so as to synchronously reduce all source surge (over) voltage and surge (over) current with the strongest destructive and destructive power, such as power grid fluctuation, self opening and closing, lightning stroke and the like, before and at the upstream, effectively prevent harm and damage, and at the downstream, the rectifier diode and L ED which are semiconductor components with characteristics of being easily damaged by strong impact of instantaneous voltage and current are protected L ED to normally work in a safe voltage range.
2. The capacitor does not consume energy and generate heat, only passes through alternating current and has capacitive reactance, has double effects of voltage reduction and current limitation on the alternating current to protect L ED, improve the safety and the service life of the alternating current, and generates a cheap and good low-voltage L ED power supply to replace a traditional expensive L ED low-voltage power supply.
3. The capacitor has four characteristics of voltage reduction, current limiting, peak clipping and valley filling, secondary omnibearing interception and overvoltage and overcurrent clamping, and the safety and the service life of L ED are further improved.
4. The polar plates of the capacitor are mutually isolated, and are equivalent to and equal to a traditional high-quality L ED power supply isolation commercial power circuit, so that the L ED can lead the current required by the sudden increase of the internal resistance reduction current due to the two-rise temperature to become the passive water and the inexhaustible cooking, thereby improving the L ED safety and the service life.
5. The ideal PN junction is free of resistance after forward conduction, but in practice, the PN junction is influenced by materials and processes, and actually, an on-resistance between a few ohms and a few dozens of ohms exists between the two ends of the PN junction when the PN junction is conducted and after the PN junction is conducted, and the PN junction is equivalent to an internal resistance, so that the potential beneficial resource is used as a virtual resistance equivalent to L ED current limiting resistance and forms an equivalent and equivalent series resistance-capacitance coupling filter circuit together with the capacitance reactance of a capacitor, and the peak clipping and the valley filling are carried out to balance and smooth L ED electricity consumption, luminous intensity and working temperature, L ED temperature rise and the caused current rise.
6. The diode PN junction has a capacitor, the capacitor can pass through alternating current, the junction capacitor is usually very small, when the frequency of the alternating current applied between the diode PN junctions is low, the current passing through the PN junction is determined by the characteristics of the PN junction, only one-way current is allowed to pass, when the frequency of the alternating current applied on the PN junction is high, the alternating current can form a path through the capacitor of the PN junction, the PN junction partially or completely loses the characteristic of one-way conduction (the latter is equivalent to breakdown damage), L ED has the junction capacitor as the diode PN junction, but because the junction capacitor is very small and the commercial power frequency is very low, the L ED power supply of the invention can not damage L ED, while the traditional L ED power supply is a high-frequency power supply with strong radiation, feedback and coupling effects and capacities, has great adverse effects on fragile L ED, is difficult to effectively and powerfully prevent and control, is easy to cause L ED safety reduction, and is easy to interfere with other electrical appliances, especially precise electronic and electrical equipment, and even directly influence.
7. The capacitive L ED power supply and the L ED lighting lamp thereof not only have extremely high power factors, but also directly and uncompensably transmit electric capacity to a power grid to improve the power factors of the mains supply, although each lamp capacitor and the contribution to the improvement of the power factors of the power grid are small, the capacitive L ED power supply and the L ED lighting lamp thereof accumulate into a tower and an armpit, particularly, a global continuous method uses L ED and gradually replaces and forbids the traditional lighting lamps with large quantity and total power, obviously, the capacitive L ED lighting lamp contributes to the society, science and technology, particularly, the large and durable power factors of the power generation and power supply system, energy conservation, environmental protection, comprehensive and low-carbon sum effects and low-carbon sum benefits.
8. The fact proves that the self-heat-dissipation technical scheme adopted by the invention is safe enough, the volume is small, the weight is light, the circuit is simple, the failure rate is extremely low, a heat-dissipation device and a space which are necessary for a traditional L ED power supply are not needed, the vacated heat-dissipation space greatly improves the L ED heat-dissipation condition, the heat-dissipation capacity is obviously improved, the vicious circle of current rise caused by temperature rise is further effectively and powerfully prevented, the L ED service life is greatly prolonged, and the volume, the weight, the energy consumption and the manufacturing and using cost of a L ED lamp are greatly reduced.
9. The voltage dependent resistor generally uses zinc oxide as a main material, and the voltage dependent resistor and a semiconductor diode-containing rectifier and light emitting diode, namely L ED, belong to mineral properties with infinite theoretical life, and have extremely long service life with a non-polar capacitor, solid or liquid electrolyte in the traditional L ED power supply electrolytic capacitor is easy to deteriorate and dry up, so that the capacitance is quickly shrunk and the service life is short, so that the power supply fails and L ED is synchronously scrapped.
10. The protection effect of the invention is more reliable, because the piezoresistor protection principle is different from the traditional detection type protection principle, the former only needs to set the trigger voltage to be lower in advance, the voltage is synchronous and even leads to the protection in advance once reaching the trigger voltage, the latter only needs to detect the destructive signal sent by L ED and needs to respond to the signal to start the protection, and the time is needed, namely the traditional protection cannot start the protection in advance and is delayed, so the protection is always late, because L ED probably approaches to the damage edge or limit and even can send the detection signal necessary for the traditional protection in advance.
11. The invention has the advantages of few components, simple circuit, low manufacturing cost, low use failure and maintenance rate, low price, high quality, strong competitiveness and remarkable and lasting return of production and marketing merchants and users.
Description of the drawings:
fig. 1 is a schematic diagram of interference-free, low-cost and long-life L ED power supply and electricity directly using commercial power.
Fig. 2 is an electrical schematic diagram of a single-group L ED L ED lighting appliance directly using a mains supply interference-free low-cost long-life L ED power supply.
Fig. 3 is an electrical schematic diagram of L ED lighting appliances directly using mains supply non-interference low-cost long-life L ED power supplies, which are connected in parallel and comprise, but are not limited to, 2 groups of single L EDs.
Fig. 4 is an electrical schematic diagram of L ED lighting appliance connected in series with no-interference, low-cost and long-life L ED power supplies including but not limited to 2L ED directly using commercial power.
Fig. 5 is an electrical principle diagram of a L ED lighting appliance connected in parallel, including but not limited to 2 groups of serial connections, including but not limited to 2L EDs, and directly using mains supply interference-free low-cost long-life L ED power supplies.
In the figure, the ac mains supply is represented by R1 as a resistor, R2 as an equivalent virtual current limiting resistor virtually formed by a diode PN junction on-resistance, C as a capacitor functioning as isolation, current limiting and filtering, D as a bridge rectifier, D1-D4 as a rectifying diode, + as a bridge rectifier output positive pole, -as a bridge rectifier output negative pole, L ED1 as a first group of single L ED, <tttranslation = L "&tttl &/ttt >tt0 ED2 as a second group of single L ED, <tttttranslation = L" &tttl &/t >tt 3 as a first of a third group of 2L ED, and ED 3' as a third group of 2 ttt 6329 series, R633 is a fourth group of 2 ED 638, and R638 is a fourth group of ttt 638 ED 638 and tfd 3 is a fourth group of L ED 638.
Detailed Description
In fig. 1, the rectifier diodes D1-D4 are electrically connected in a bridge manner to form a bridge rectifier D, one end of a resistor R1 and a capacitor C are electrically connected to one end of an ac commercial power source-, the other end of the resistor R1 is electrically connected to the other end of the ac commercial power source-, the other end of the capacitor C is electrically connected to the positive terminal of the rectifier diode D1 and the negative terminal of the rectifier diode D2, the negative terminal of the rectifier diode D1 is electrically connected to the negative terminal of the rectifier diode D3 and the negative terminal of the bridge rectifier output terminal-, the positive terminal of the rectifier diode D2 is electrically connected to the positive terminal of the rectifier diode D4 and the positive terminal + of the bridge rectifier output terminal, and the positive terminal of the rectifier diode D3 and the negative terminal of the rectifier diode D4 are electrically connected to the.
In fig. 2, the rectifier diodes D1-D4 are electrically connected in a bridge manner to form a bridge rectifier D, one end of the resistor R1 and one end of the capacitor C are electrically connected to one end of the ac mains supply —, the other end of the resistor R1 is electrically connected to the other end of the ac mains supply —, the other end of the capacitor C is electrically connected to the positive terminal of the rectifier diode D1 and the negative terminal of the rectifier diode D2, the negative terminal of the rectifier diode D1 is electrically connected to the negative terminal of the rectifier diode D3 and the negative terminal of the output terminal of the bridge rectifier, the positive terminal of the light emitting diode L ED1 is electrically connected to the negative terminal of the output terminal of the bridge rectifier, the positive terminal of the rectifier diode D2 is electrically connected to the positive terminal of the rectifier diode D4 and the positive terminal + of the output terminal of the bridge rectifier, the negative terminal of the light emitting diode L ED1 is electrically connected to the positive terminal + of the bridge rectifier, and the.
In fig. 3, the rectifier diodes D1-D4 are electrically connected in bridge form to form a bridge rectifier D, one end of the resistor R1 and the capacitor C are electrically connected to the live wire end of the ac mains supply, the other end of the resistor R1 is electrically connected to the neutral wire end of the ac mains supply, the other end of the capacitor C is electrically connected to the positive electrode end of the rectifier diode D1 and the negative electrode end of the rectifier diode D2, the negative electrode end of the rectifier diode D1 is electrically connected to the negative electrode end of the rectifier diode D3 and the negative electrode end of the bridge rectifier, the positive electrode ends of the light emitting diodes L ED1 to L ED2 are electrically connected to the negative electrode end of the bridge rectifier one by one, the positive electrode end of the rectifier diode D2 is electrically connected to the positive electrode end of the rectifier diode D4 and the positive electrode end of the output of the bridge rectifier, the negative electrode ends of the light emitting diodes L ED 8 and L ED2 are electrically connected to the positive electrode + of the output terminal of the bridge rectifier one by one.
In fig. 4, the rectifier diodes D1-D4 are electrically connected in bridge form to form a bridge rectifier D, one end of the resistor R1 and the capacitor C are electrically connected to one end of the ac mains supply, the other end of the resistor R1 is electrically connected to the other end of the ac mains supply, the other end of the capacitor C is electrically connected to the positive terminal of the rectifier diode D1 and the negative terminal of the rectifier diode D2, the negative terminal of the rectifier diode D1 is electrically connected to the negative terminal of the rectifier diode D3 and the negative terminal of the bridge rectifier, the light emitting diodes L ED3 to the light emitting diodes L ED3 'are connected in series one by one, the positive terminal of the light emitting diode L ED3 is electrically connected to the negative terminal of the bridge rectifier, the positive terminal of the rectifier diode D2 is electrically connected to the positive terminal of the rectifier diode D8 and the positive terminal + of the bridge rectifier, the negative terminal of the light emitting diode L ED 3' is electrically connected to the positive terminal of the bridge rectifier, and the positive terminal of the rectifier diode D3 and the negative terminal of.
In fig. 5, the rectifier diodes D1-D4 are electrically connected in a bridge manner to form a bridge rectifier D, one ends of the resistor R1 and the capacitor C are electrically connected to one end of the ac mains supply-, the other end of the resistor R1 is electrically connected to the other end of the ac mains supply-, the other end of the capacitor C is electrically connected to the positive terminal of the rectifier diode D1 and the negative terminal of the rectifier diode D2, the negative terminal of the rectifier diode D1 is electrically connected to the negative terminal of the rectifier diode D3 and the negative terminal of the output of the bridge rectifier, the light emitting diodes L ED3 to L ED3 ' are connected in series one by one, the light emitting diodes L ED4 to L ED4 ' are connected in series one by one, the positive terminal of the light emitting diodes 4 to the positive terminal of the light emitting diodes 4 ED4 are electrically connected to the negative terminal of the output of the bridge rectifier, the positive terminal of the rectifier diode D4 is electrically connected to the positive terminal of the rectifier diode D4 and the negative terminal of the rectifier diode D4 to the positive terminal of the rectifier 4 and the rectifier diode D4 ' are electrically connected to the positive terminal of the rectifier.
Examples and supplementary advantages illustrate:
the embodiments and the descriptions of the invention are the same as the accompanying drawings 1-5 and the descriptions and the specific implementation modes and the descriptions, so the embodiments and the descriptions are directly replaced by the low-frequency capacitors except for the supplementary descriptions, the low-frequency capacitors can be selected as the capacitors, and various low-frequency alternating current capacitors specially used for a power grid are preferably directly adopted, and the low-frequency alternating current capacitors have the advantages of large production and sales volume, long production and sales time, natural low cost, good quality, multiple capacity specifications, wide selection range and easy matching with L ED power supplies with different powers and L ED loads matched with the power supplies with the different powers and the driving powers, so that the safety and the reliability of the product are fully guaranteed according to the requirements of commercial power working conditions, the cost is reduced, the competitiveness and the market share are improved, a huge and durable market and a heavy return are brought to the production and sales traders of the product.
Claims (11)
1. A L ED power supply able to be used directly as electric supply is composed of an AC power supply with resistor R1 at its input end and a bridge rectifier with capacitor at its input end.
2. A resistor R1 for a power supply of L ED with no interference, low cost and long service life of commercial power as claimed in claim 1 is a voltage dependent resistor.
3. A capacitor C of L ED power supply able to be used directly as power supply of no interference, low cost and long service life as claimed in claim 1 is a non-polar capacitor.
4. A current-limiting resistor R2 of L ED power supply with no interference, low cost and long service life directly using commercial power is characterized by the on-resistance of the PN junction of L ED.
5. The use of the interference-free low-cost long-life L ED power supply of claim 1 in AC circuit as power supply of L ED.
6. A L ED power supply which directly uses mains supply and has no interference, low cost and long service life is provided, rectifier diodes D1-D4 are in bridge type electric connection to form a bridge type rectifier D, one end of a resistor R1 and a capacitor C is electrically connected with one end of an alternating mains supply, the other end of the resistor R1 is electrically connected with the other end of the alternating mains supply, the other end of the capacitor C is electrically connected with the positive electrode end of a rectifier diode D1 and the negative electrode end of a rectifier diode D2, the negative electrode end of a rectifier diode D1 is electrically connected with the negative electrode end of a rectifier diode D3 and the negative electrode end of the bridge type rectifier, the positive electrode end of a rectifier diode D2 is electrically connected with the positive electrode end of a rectifier diode D4 and the positive electrode + of the output end of the bridge type rectifier, and the positive electrode end of a rectifier diode D.
7. A L ED lighting appliance directly using a mains supply interference-free low-cost long-life L ED power supply is characterized in that a driving power supply is the power supply of claim 1 which directly uses the mains supply long-life L ED power supply.
8. A single-tube single-group L ED lighting appliance directly using a mains supply with no interference, low cost and long service life is characterized in that rectifier diodes D1-D4 are electrically connected in a bridge mode to form a bridge rectifier D, one ends of a resistor R1 and a capacitor C are electrically connected with one end of an alternating mains supply, the other end of a resistor R1 is electrically connected with the other end of the alternating mains supply, the other end of the capacitor C is electrically connected with the positive electrode end of a rectifier diode D1 and the negative electrode end of a rectifier diode D2, the negative electrode end of a rectifier diode D1 is electrically connected with the negative electrode end of a rectifier diode D3 and the negative electrode of the output end of the bridge rectifier, the positive electrode end of a light emitting diode L ED1 is electrically connected with the negative electrode of the output end of the bridge rectifier, the positive electrode end of a rectifier diode D2 is electrically connected with the positive electrode end of a rectifier diode D4 and the positive electrode + of the output end of the bridge rectifier, the negative electrode end of a light emitting diode L ED1 is electrically connected with the.
9. A single-tube double-group L ED lighting appliance using a mains supply with no interference, low cost and long service life directly is characterized in that rectifier diodes D1-D4 are electrically connected in a bridge mode to form a bridge rectifier D, one ends of a resistor R1 and a capacitor C are electrically connected with one end of an alternating mains supply, the other end of a resistor R1 is electrically connected with the other end of the alternating mains supply, the other end of the capacitor C is electrically connected with the positive end of a rectifier diode D1 and the negative end of a rectifier diode D2, the negative end of the rectifier diode D1 is electrically connected with the negative end of a rectifier diode D3 and the negative end of the output end of the bridge rectifier, the positive ends of light emitting diodes L ED 1-L ED2 are electrically connected with the negative end of the output end of the bridge rectifier one by one, the positive end of a rectifier diode D2 is electrically connected with the positive end of a rectifier diode D4 and the positive end of the output end of the bridge rectifier, the negative ends of light emitting diodes L ED1 and L ED2 are electrically connected with the positive ends of the output ends of the bridge.
10. A single-group serial L ED lighting appliance directly using a mains supply with no interference, low cost and long service life is characterized in that rectifier diodes D1-D4 are electrically connected in a bridge mode to form a bridge rectifier D, one ends of a resistor R1 and a capacitor C are electrically connected with one end of an alternating mains supply, the other end of a resistor R1 is electrically connected with the other end of the alternating mains supply, the other end of the capacitor C is electrically connected with the positive end of a rectifier diode D1 and the negative end of a rectifier diode D2, the negative end of the rectifier diode D1 is electrically connected with the negative end of a rectifier diode D3 and the negative end of the output end of the bridge rectifier, light emitting diodes L ED3 to L ED3 'are connected in series one by one, the positive end of a light emitting diode L ED3 is electrically connected with the negative end of the output end of the bridge rectifier, the positive end of the rectifier diode D2 is electrically connected with the positive end of the rectifier diode D4 and the positive end of the output end of the bridge rectifier diode, the negative end of the rectifier diode L ED 3' is electrically connected with the positive end of the alternating current supply.
11. A series L ED lighting appliance with parallel double groups directly using a mains supply with no interference and low cost and long service life is characterized in that a rectifier diode D1-D4 is electrically connected in a bridge mode to form a bridge rectifier D, one end of a resistor R1 and a capacitor C is electrically connected with one end of an AC mains supply, the other end of a resistor R1 is electrically connected with the other end of the AC mains supply, the other end of the capacitor C is electrically connected with the positive electrode end of a rectifier diode D1 and the negative electrode end of a rectifier diode D2, the negative electrode end of a rectifier diode D1 is electrically connected with the negative electrode end of a rectifier diode D3 and the negative electrode end of the output end of the bridge rectifier, a light emitting diode L ED3 to a light emitting diode L ED3 'are connected in series one by one, the light emitting diodes 3 ED3 to the light emitting diode 3 ED 3' are connected in series one by one, the positive electrode end of the light emitting diode 3 ED3 to the positive electrode end of the light emitting diode 3 are electrically connected with the output end of the bridge rectifier D3, and the negative electrode end of the rectifier diode D3 are electrically connected with the positive electrode end of the rectifier D3 and the anode end of the rectifier diode 3 to the rectifier diode 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022620.8A CN111479354A (en) | 2019-01-04 | 2019-01-04 | Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022620.8A CN111479354A (en) | 2019-01-04 | 2019-01-04 | Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111479354A true CN111479354A (en) | 2020-07-31 |
Family
ID=71743174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910022620.8A Pending CN111479354A (en) | 2019-01-04 | 2019-01-04 | Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111479354A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086325A (en) * | 2006-11-21 | 2007-12-12 | 孙小安 | LED lamp bulb |
| CN201382385Y (en) * | 2009-04-18 | 2010-01-13 | 邱赛昂 | Capacitive constant current source LED lamp |
| CN201499346U (en) * | 2009-07-21 | 2010-06-02 | 福建大晶光电有限公司 | Lower-power LED stabilized current driving circuit |
| CN102159012A (en) * | 2011-04-15 | 2011-08-17 | 周必忠 | Semiconductor illuminating lamp |
| CN102330893A (en) * | 2010-07-14 | 2012-01-25 | 王知康 | Transformer-free LED (Light Emitting Diode) illumination lamp device directly using alternating current commercial power |
| CN102625543A (en) * | 2012-04-13 | 2012-08-01 | 汕头市南帆电器有限公司 | Light-emitting diode (LED) power supply |
| US20120256551A1 (en) * | 2011-04-05 | 2012-10-11 | Kim Seong-Yoon | Ballast circuit for LED lamp |
| CN104039043A (en) * | 2014-05-30 | 2014-09-10 | 李香龙 | Non-polar capacitor voltage reducing and dividing rectification linear light-emitting diode (LED) driving circuit |
| CN104822203A (en) * | 2015-04-30 | 2015-08-05 | 成都锐奕信息技术有限公司 | LED surge protection circuit based on voltage dependent resistors |
| CN204652709U (en) * | 2014-05-30 | 2015-09-16 | 李香龙 | The linear LED drive power of dividing potential drop rectification falls in non-polar condenser |
| CN204697354U (en) * | 2015-06-23 | 2015-10-07 | 成都亿信标准认证集团有限公司 | Antisurge LED power circuit |
-
2019
- 2019-01-04 CN CN201910022620.8A patent/CN111479354A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101086325A (en) * | 2006-11-21 | 2007-12-12 | 孙小安 | LED lamp bulb |
| CN201382385Y (en) * | 2009-04-18 | 2010-01-13 | 邱赛昂 | Capacitive constant current source LED lamp |
| CN201499346U (en) * | 2009-07-21 | 2010-06-02 | 福建大晶光电有限公司 | Lower-power LED stabilized current driving circuit |
| CN102330893A (en) * | 2010-07-14 | 2012-01-25 | 王知康 | Transformer-free LED (Light Emitting Diode) illumination lamp device directly using alternating current commercial power |
| US20120256551A1 (en) * | 2011-04-05 | 2012-10-11 | Kim Seong-Yoon | Ballast circuit for LED lamp |
| CN102159012A (en) * | 2011-04-15 | 2011-08-17 | 周必忠 | Semiconductor illuminating lamp |
| CN102625543A (en) * | 2012-04-13 | 2012-08-01 | 汕头市南帆电器有限公司 | Light-emitting diode (LED) power supply |
| CN104039043A (en) * | 2014-05-30 | 2014-09-10 | 李香龙 | Non-polar capacitor voltage reducing and dividing rectification linear light-emitting diode (LED) driving circuit |
| CN204652709U (en) * | 2014-05-30 | 2015-09-16 | 李香龙 | The linear LED drive power of dividing potential drop rectification falls in non-polar condenser |
| CN104822203A (en) * | 2015-04-30 | 2015-08-05 | 成都锐奕信息技术有限公司 | LED surge protection circuit based on voltage dependent resistors |
| CN204697354U (en) * | 2015-06-23 | 2015-10-07 | 成都亿信标准认证集团有限公司 | Antisurge LED power circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205648122U (en) | Linear constant current LED drive circuit based on triac dimmer | |
| CN104918387B (en) | A kind of LED light device of exchange driving | |
| CN102781145A (en) | LED (light emitting diode) drive power circuit | |
| CN206498563U (en) | A kind of multi-layer ceramic capacitance constant current driver circuit for LED | |
| CN103763815A (en) | Double-high constant current type LED driving power source with multiple protection functions | |
| CN203608412U (en) | An LED lamp driving power supply employing optical coupler feedback control | |
| CN204578876U (en) | A kind of power driving circuit of AC/DC | |
| CN201039531Y (en) | LED transformation drive circuit | |
| CN111479354A (en) | Interference-free low-cost long-life L ED power supply directly using mains supply and L ED lighting appliance thereof | |
| CN106376136B (en) | A kind of LED power circuit and LED lamp | |
| CN203523124U (en) | Anti-light strobe circuit for high-PF alternating-current direct-drive LED circuit | |
| CN205828277U (en) | A kind of relay | |
| CN108040400A (en) | LED drive circuit and LED lamp | |
| CN203813997U (en) | Double-highness constant current type LED drive power supply with multiple protecting functions | |
| CN212115179U (en) | Switching power supply circuit | |
| CN210807727U (en) | Power supply circuit for lamp strip | |
| CN202696988U (en) | LED (Light-Emitting Diode) driving device | |
| CN201674689U (en) | Power circuit | |
| CN108463022B (en) | Multilayer ceramic capacitor LED constant current driving circuit | |
| CN206118125U (en) | LED power supply circuit and LED lamps and lanterns | |
| CN101854765B (en) | Ballast with automatic regulation of over-current protection point and lighting fixture thereof | |
| CN206341455U (en) | LED drive chip and drive circuit | |
| CN203840607U (en) | Circuit for solving problem of LED back flashing of miniwatt BUCK circuit | |
| CN211406387U (en) | Anti-lightning-surge DOB light source and LED lamp | |
| KR102607461B1 (en) | LED indoor/outdoor electric plate capable of controlling surge and abnormal voltage and method for controlling surge and abnormal voltage using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200731 |