CN105657906A - Urban road illuminating system based on vehicle noise energy collection - Google Patents
Urban road illuminating system based on vehicle noise energy collection Download PDFInfo
- Publication number
- CN105657906A CN105657906A CN201610160013.4A CN201610160013A CN105657906A CN 105657906 A CN105657906 A CN 105657906A CN 201610160013 A CN201610160013 A CN 201610160013A CN 105657906 A CN105657906 A CN 105657906A
- Authority
- CN
- China
- Prior art keywords
- diode
- acoustic
- electric
- port
- circuit
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses an urban road illuminating system based on vehicle noise energy collection, and belongs to the technical field of clean energy. The urban road illuminating system structurally comprises an acoustic-electric conversion circuit (1), a rectifying circuit (2), an energy storage circuit (3) and a voltage stabilizing and illuminating circuit (4). Noise produced by vehicles on a road is directly converted into electric energy for driving streetlamp illumination without adding a power supply; a light-emitting diode serves as an illumination light source, and the system has the advantages of saving energy, being environmentally friendly and the like; serial-connection and parallel-connection structural design is adopted among a plurality of piezoelectric films used in the system, and drive currents and drive voltages can be effectively improved.
Description
Technical field
The invention belongs to clean energy technology field, relate to a kind of utilizing piezoelectric membrane that the noise and vibration energy reaching some strength on road is converted to electric energy and stored, lighting street lamp in night is the device that urban road is illuminated.
Background technology
The light of urban road both sides has long history culture, it is shown that the civilization in a city is with prosperous. Bed rearrangement city not only lighted by street lamp, more moulds the art in a city. City illumination is that people live an indispensable part, for improving city function and improving people's living standard and be all significant.
Along with the modernization construction that city makes rapid progress, city street lamp illumination construction seems more and more very important. Nowadays, in the development of street lamp, not only to realize the maximization of illumination, also require to accomplish energy-saving and environmental protection and high efficiency.
The continuous progress of science and technology, also makes the variation of highway lighting kind, including the variation in illumination energy source, such as solar energy, wind energy, tide energy etc. But every kind of form of energy has again respective limitation, when energy source reduces, it is impossible to ensure the normal use of city illumination. The present invention, from the angle of energy-conserving and environment-protective, collects the noise energy that city automobile sends, and is translated into electric energy, and the LED for urban road both sides provides electric energy.
Summary of the invention
It is an object of the invention to, in order to overcome Problems existing in background technology, it is provided that a kind of novel street lamp illumination system, piezoelectric membrane is used to obtain the noise resource in air, utilize the characteristic to vibration sensing of piezoelectric membrane, convert faint noise energy to electric flux. After collecting the noise voltage of instability, by rectification, noise alternating voltage being become DC voltage, voltage is adjusted under a threshold value by recycling voltage stabilizing chip, charges to ultracapacitor. These noise energy powering loads of collection finally arrived with ultracapacitor.
Above-mentioned purpose is realized by following technical scheme:
A kind of city illumination system based on automobile noise collection of energy, the sound power conversion circuit 1 of its structure, rectification circuit 2, accumulator 3, voltage stabilizing and lighting circuit 4;
The structure of described acoustic-electric change-over circuit 1 is: terminate the mode of the input of the basic acoustic-electric converting unit of later according to the output of previous basic acoustic-electric converting unit, N number of basic acoustic-electric converting unit is sequentially connected in series, wherein the input of first basic acoustic-electric converting unit is as an outfan of acoustic-electric change-over circuit 1, it is designated as port M1_OUT1, the outfan of last basic acoustic-electric converting unit is as another outfan of acoustic-electric change-over circuit 1, it is designated as port M1_OUT2, described N number of basic acoustic-electric converting unit structure is identical, each basic acoustic-electric converting unit is made up of with M identical resistance M identical piezoelectric membrane, one end of the positive pole of each piezoelectric membrane and a resistance is connected, the negative pole of M piezoelectric membrane is connected together the input as described basic acoustic-electric converting unit, the other end of M resistance is connected together the outfan as described basic acoustic-electric converting unit,Described N and M is the positive integer be more than or equal to 15 and less than or equal to 30;
The structure of described rectification circuit 2 is: the anode of diode D1 is connected with the negative electrode of diode D2, an input as rectification circuit 2, it is designated as port M2_IN1, the anode of diode D3 is connected with the negative electrode of diode D4, another input as rectification circuit 2, it is designated as port M2_IN2, its middle port M2_IN1, port M2_IN2 respectively with the port M1_OUT1 of acoustic-electric change-over circuit 1, port M1_OUT2 is connected, the negative electrode of diode D1 is connected with the negative electrode of diode D3, outfan as rectification circuit 2, it is designated as port M2_OUT, it is connected with 1 foot of the switch K1 in accumulator 3, the anode of diode D2 is connected with the anode of diode D4, and be connected with one end of inductance L1, the other end of inductance L1 is connected with the negative pole of the super capacitor C1 in accumulator 3, and ground connection,
The structure of described accumulator 3 is: the minus earth of super capacitor C1, positive pole is connected with 3 feet of switch K1,2 feet of switch K1 and the input of voltage stabilizing and lighting circuit 4, namely port M4_IN is connected, described switch K1 is a light-operated single-pole double-throw switch (SPDT), and the relation of its 3 pins is: when intensity of illumination exceedes the threshold value of switch K1,3 feet and 1 foot are connected, when the intensity of illumination threshold value less than switch K1, the connection of 3 feet and 2 feet;
The structure of voltage stabilizing and lighting circuit 4 is: 3 feet of chip LM317 are connected with the negative electrode of diode D5, input as voltage stabilizing and lighting circuit 4, it is designated as port M4_IN, connect 2 feet switching K1 in accumulator 3, 2 feet of chip LM317 are connected with the anode of diode D5, also with one end of inductance L2, the negative electrode of diode D6, one end of resistance R5M is connected, 1 foot of chip LM317 and the anode of diode D6, the other end of resistance R5M and one end of slide rheostat R4M are connected, the other end ground connection of slide rheostat R4M, end of slide wire is connected with one end of electric capacity C2 and the negative electrode of LED 1, the other end of electric capacity C2 is connected with the anode of LED 1, and be connected with the other end of inductance L2.
A kind of based in the city illumination system of automobile noise collection of energy in the present invention, the value of described N and the M in acoustic-electric change-over circuit 1 preferably 20.
A kind of based in the city illumination system of automobile noise collection of energy in the present invention, the model of each element or parameter are preferably: all resistance in acoustic-electric change-over circuit 1 are 10k ��, piezoelectric membrane is the PVDF piezoelectric membrane that MEAS company produces, diode D1��D4 in rectification circuit 2 is IN5391, inductance L1 is 15uH, super capacitor C1 in accumulator 3 is the combined ultracapacitor of the 0.22F/5.5V that Camry company produces, diode D5 and diode D6 in voltage stabilizing and lighting circuit 4 are IN4001, resistance R5M is 10k ��, slide rheostat R4M is W103, electric capacity C2 is 10pF, inductance L2 is 10uH, LED 1 is JTL-Y40-2.
The present invention has following beneficial effect:
1, the present invention does not need additional power source, directly vehicle on road is produced noise and converts electrical energy drive street lighting, energy-conserving and environment-protective to.
2, take series parallel structure to design between multiple piezoelectric membranes used in the present invention, when charging for rear class accumulator, not only improve driving electric current but also improve driving voltage.
3, the present invention adopts light emitting diode as lighting source, and light emitting diode power consumption is minimum and luminosity is high, effectively reduces energy consumption, extends the lighting hours of street lamp.
4, the present invention adopts super capacitor storage energy.Ultracapacitor charging is fast, and charge and discharge control that need not be extra, overcharges or crosses and puts all without the performance affecting ultracapacitor, and has the advantages such as big, big, the stable in properties of discharge and recharge life-span length, energy density of capacitance.
5, preferred version of the present invention have employed a PVDF piezoelectric membrane that MEAS company produces, this thin film wide dynamic range, reach 0 to 280dB, frequency range is from 0.1Hz to 100MHz, pliability is good, bend 2mm in theory, the maximum voltage that can produce 7V of single thin film, and sensitivity can reach 15mV/ �� ��.
Accompanying drawing illustrates:
Fig. 1 is the overall structure block diagram of the present invention.
Fig. 2 is the structure composition of the acoustic-electric change-over circuit of the present invention.
Fig. 3 be the present invention acoustic-electric change-over circuit in the schematic diagram of each basic acoustic-electric converting unit.
Fig. 4 is the schematic diagram of the rectification circuit of the present invention.
The schematic diagram of the accumulator of Fig. 5 present invention.
Fig. 6 is the schematic diagram of the voltage stabilizing of the present invention and lighting circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate the concrete structure of each several part circuit of the present invention. In each embodiment, the preferred parameter of component marks explanation after each embodiment.
The population structure of embodiment 1 present invention
Overall structure of the present invention is made up of acoustic-electric change-over circuit 1, rectification circuit 2, accumulator 3, voltage stabilizing and 4 four parts of lighting circuit. structured flowchart is as shown in Figure 1. wherein acoustic energy is converted into alternating current by acoustic-electric change-over circuit 1, it is connected on rectification circuit 2, alternating current is converted to DC voltage by rectification circuit 2, it is connected to accumulator 3, energy storage is got up by the super capacitor in accumulator 3, switch K1 in accumulator 3 is a light-operated single-pole double-throw switch (SPDT), the relation of its 3 pins is: when intensity of illumination exceedes the threshold value of switch K1, 3 feet and 1 foot are connected, when intensity of illumination less than switch K1 threshold value time, 3 feet and 2 feet are connected, therefore time by day, super capacitor connects with rectification circuit 2 by switching K1, super capacitor is charged by rectification circuit 2, time at night, super capacitor connects by switching K1 discharge with voltage stabilizing and lighting circuit 4, driven for emitting lights diode is illuminated.
Embodiment 2 acoustic-electric change-over circuit
As shown in Figure 2, the structure of described acoustic-electric change-over circuit 1 is: terminate the mode of the input of the basic acoustic-electric converting unit of later according to the output of previous basic acoustic-electric converting unit, N number of basic acoustic-electric converting unit is sequentially connected in series, wherein the input of first basic acoustic-electric converting unit is as an outfan of acoustic-electric change-over circuit 1, it is designated as port M1_OUT1, the outfan of last basic acoustic-electric converting unit, as another outfan of acoustic-electric change-over circuit 1, is designated as port M1_OUT2. Described N number of basic acoustic-electric converting unit structure is identical. As shown in Figure 3, each basic acoustic-electric converting unit is made up of with M identical resistance M identical piezoelectric membrane, one end of the positive pole of each piezoelectric membrane and a resistance is connected, the negative pole of M piezoelectric membrane is connected together the input as described basic acoustic-electric converting unit, and the other end of M resistance is connected together the outfan as described basic acoustic-electric converting unit. M piezoelectric membrane is connected in parallel, and can be effectively improved the charging current to rear class accumulator, and N number of basic acoustic-electric converting unit is cascaded, then can be effectively improved charging voltage, and in the present embodiment, N and M all takes 20.
In the present embodiment, adoptable device model can be chosen respectively: all of piezoelectric membrane all adopts the PVDF piezoelectric membrane that MEAS company produces, and the value of all of resistance is 10 kilo-ohms.
Embodiment 3 rectification circuit
As shown in Figure 4, the structure of described rectification circuit 2 is: the anode of diode D1 is connected with the negative electrode of diode D2, an input as rectification circuit 2, it is designated as port M2_IN1, the anode of diode D3 is connected with the negative electrode of diode D4, another input as rectification circuit 2, it is designated as port M2_IN2, its middle port M2_IN1, port M2_IN2 respectively with the port M1_OUT1 of acoustic-electric change-over circuit 1, port M1_OUT2 is connected, the negative electrode of diode D1 is connected with the negative electrode of diode D3, outfan as rectification circuit 2, it is designated as port M2_OUT, it is connected with 1 foot of the switch K1 in accumulator 3, the anode of diode D2 is connected with the anode of diode D4, and be connected with one end of inductance L1, the other end of inductance L1 is connected with the negative pole of the super capacitor C1 in accumulator 3, and ground connection.
Owing to acoustic-electric change-over circuit 1 is after the noise received on highway produces vibration, the noise signal of telecommunication of alternation can be produced, during voltage, timing is born, and then the signal of telecommunication of positive and negative alternation can convert the equidirectional signal of telecommunication for charging to accumulator 3 to by rectification circuit 2.
The device model adopted in the present embodiment can be chosen respectively: commutation diode D1, D2, D3, D4 all adopt IN5391, and inductance L1 value is 15uH.
Embodiment 4 accumulator
As shown in Figure 5, the structure of described accumulator 3 is: the minus earth of super capacitor C1, positive pole is connected with 3 feet of switch K1, 2 feet of switch K1 and the input of voltage stabilizing and lighting circuit 4, namely port M4_IN is connected, switch K1 is a light-operated single-pole double-throw switch (SPDT), the relation of its 3 pins is: when intensity of illumination exceedes the threshold value of switch K1, 3 feet and 1 foot are connected, when intensity of illumination less than switch K1 threshold value time, 3 feet and 2 feet are connected, therefore time by day, super capacitor connects with rectification circuit 2 by switching K1, super capacitor is charged by rectification circuit 2, time at night, super capacitor connects by switching K1 discharge with voltage stabilizing and lighting circuit 4, driven for emitting lights diode is illuminated.
In above-described embodiment, adoptable device model can be chosen respectively: super capacitor C1 is the combined ultracapacitor of the 0.22F/5.5V that Camry company produces, its 30min electric leakage (�� A)/24h self discharge is 100 �� A/V, series equivalent resistance is 1.2 ��, size is 7 �� 13 �� 13W �� L �� H (mm) �� 2, and diameter wire is 0.5mm �� 0.05mm.
Embodiment 5 voltage stabilizing and lighting circuit
As shown in Figure 6, the structure of voltage stabilizing and lighting circuit 4 is: 3 feet of chip LM317 are connected with the negative electrode of diode D5, input as voltage stabilizing and lighting circuit 4, it is designated as port M4_IN, connect 2 feet switching K1 in accumulator 3, 2 feet of chip LM317 are connected with the anode of diode D5, also with one end of inductance L2, the negative electrode of diode D6, one end of resistance R5M is connected, 1 foot of chip LM317 and the anode of diode D6, the other end of resistance R5M and one end of slide rheostat R4M are connected, the other end ground connection of slide rheostat R4M, end of slide wire is connected with one end of electric capacity C2 and the negative electrode of LED 1, the other end of electric capacity C2 is connected with the anode of LED 1, and be connected with the other end of inductance L2.
Owing to super capacitor is along with the carrying out of charge or discharge, its voltage is to change always, it is thus desirable to a mu balanced circuit is by the voltage stabilization of super capacitor, the chip LM317 adopted in the present embodiment is an adjustable three-terminal voltage-stabilizing chip, its output voltage range 1.2 volts to 37 volts, electric current more than 1.5 peaces can be provided, carry out with it that voltage stabilizing rear drive is emitting led to be illuminated.
The device model adopted in the present embodiment can be chosen respectively: the model of the slide rheostat R4M of employing is W103, the value of resistance R5M is 10 kilo-ohms, and the model of diode D5, D6 is IN4001, and inductance L2 value is 10uH, the value of electric capacity C2 is the model of 10pF, LED1 is JTL-Y40-2.
Claims (3)
1. based on a city illumination system for automobile noise collection of energy, the sound power conversion circuit of its structure (1), rectification circuit (2), accumulator (3), voltage stabilizing and lighting circuit (4);
The structure of described acoustic-electric change-over circuit (1) is: terminate the mode of the input of the basic acoustic-electric converting unit of later according to the output of previous basic acoustic-electric converting unit, N number of basic acoustic-electric converting unit is sequentially connected in series, wherein the input of first basic acoustic-electric converting unit is as an outfan of acoustic-electric change-over circuit (1), it is designated as port M1_OUT1, the outfan of last basic acoustic-electric converting unit is as another outfan of acoustic-electric change-over circuit (1), it is designated as port M1_OUT2, described N number of basic acoustic-electric converting unit structure is identical, each basic acoustic-electric converting unit is made up of with M identical resistance M identical piezoelectric membrane, one end of the positive pole of each piezoelectric membrane and a resistance is connected, the negative pole of M piezoelectric membrane is connected together the input as described basic acoustic-electric converting unit, the other end of M resistance is connected together the outfan as described basic acoustic-electric converting unit, described N and M is the positive integer be more than or equal to 15 and less than or equal to 30,
The structure of described rectification circuit (2) is: the anode of diode D1 is connected with the negative electrode of diode D2, an input as rectification circuit (2), it is designated as port M2_IN1, the anode of diode D3 is connected with the negative electrode of diode D4, another input as rectification circuit (2), it is designated as port M2_IN2, its middle port M2_IN1, port M2_IN2 respectively with the port M1_OUT1 of acoustic-electric change-over circuit (1), port M1_OUT2 is connected, the negative electrode of diode D1 is connected with the negative electrode of diode D3, outfan as rectification circuit (2), it is designated as port M2_OUT, it is connected with 1 foot of the switch K1 in accumulator (3), the anode of diode D2 is connected with the anode of diode D4, and be connected with one end of inductance L1, the other end of inductance L1 is connected with the negative pole of the super capacitor C1 in accumulator (3), and ground connection,
The structure of described accumulator (3) is: the minus earth of super capacitor C1, positive pole is connected with 3 feet of switch K1,2 feet of switch K1 and the input of voltage stabilizing and lighting circuit (4), namely port M4_IN is connected, described switch K1 is a light-operated single-pole double-throw switch (SPDT), and the relation of its 3 pins is: when intensity of illumination exceedes the threshold value of switch K1,3 feet and 1 foot are connected, when the intensity of illumination threshold value less than switch K1, the connection of 3 feet and 2 feet;
The structure of voltage stabilizing and lighting circuit (4) is: 3 feet of chip LM317 are connected with the negative electrode of diode D5, input as voltage stabilizing and lighting circuit (4), it is designated as port M4_IN, connect 2 feet switching K1 in accumulator (3), 2 feet of chip LM317 are connected with the anode of diode D5, also with one end of inductance L2, the negative electrode of diode D6, one end of resistance R5M is connected, 1 foot of chip LM317 and the anode of diode D6, the other end of resistance R5M and one end of slide rheostat R4M are connected, the other end ground connection of slide rheostat R4M, end of slide wire is connected with one end of electric capacity C2 and the negative electrode of LED 1, the other end of electric capacity C2 is connected with the anode of LED 1, and be connected with the other end of inductance L2.
2. a kind of city illumination system based on automobile noise collection of energy according to claim 1, it is characterised in that the value of described N and the M in acoustic-electric change-over circuit (1) is 20.
3. a kind of city illumination system based on automobile noise collection of energy according to claim 1 and 2, it is characterized in that, the model of each element or parameter be: all resistance in acoustic-electric change-over circuit (1) are 10k ��, piezoelectric membrane is the PVDF piezoelectric membrane that MEAS company produces, diode D1��D4 in rectification circuit (2) is IN5391, inductance L1 is 15uH, super capacitor C1 in accumulator (3) is the combined ultracapacitor of the 0.22F/5.5V that Camry company produces, diode D5 and diode D6 in voltage stabilizing and lighting circuit (4) are IN4001, resistance R5M is 10k ��, slide rheostat R4M is W103, electric capacity C2 is 10pF, inductance L2 is 10uH, LED 1 is JTL-Y40-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160013.4A CN105657906A (en) | 2016-03-21 | 2016-03-21 | Urban road illuminating system based on vehicle noise energy collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160013.4A CN105657906A (en) | 2016-03-21 | 2016-03-21 | Urban road illuminating system based on vehicle noise energy collection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105657906A true CN105657906A (en) | 2016-06-08 |
Family
ID=56494125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160013.4A Pending CN105657906A (en) | 2016-03-21 | 2016-03-21 | Urban road illuminating system based on vehicle noise energy collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105657906A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982488A (en) * | 2019-04-24 | 2019-07-05 | 江南大学 | A kind of noise power generation intelligent road-lamp |
| CN112994201A (en) * | 2019-12-17 | 2021-06-18 | 苏州东奇信息科技股份有限公司 | Modular combined noise power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201557292U (en) * | 2009-10-01 | 2010-08-18 | 英飞特电子（杭州）有限公司 | High efficiency constant current LED driver |
| CN201797452U (en) * | 2010-01-26 | 2011-04-13 | 陈建明 | Power generating device using broadband noise |
| CN102882389A (en) * | 2012-10-16 | 2013-01-16 | 周建文 | Constant current source |
| CN202744990U (en) * | 2012-09-03 | 2013-02-20 | 史庆华 | Full automatic highway central guardrail |
-
2016
- 2016-03-21 CN CN201610160013.4A patent/CN105657906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201557292U (en) * | 2009-10-01 | 2010-08-18 | 英飞特电子（杭州）有限公司 | High efficiency constant current LED driver |
| CN201797452U (en) * | 2010-01-26 | 2011-04-13 | 陈建明 | Power generating device using broadband noise |
| CN202744990U (en) * | 2012-09-03 | 2013-02-20 | 史庆华 | Full automatic highway central guardrail |
| CN102882389A (en) * | 2012-10-16 | 2013-01-16 | 周建文 | Constant current source |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982488A (en) * | 2019-04-24 | 2019-07-05 | 江南大学 | A kind of noise power generation intelligent road-lamp |
| CN112994201A (en) * | 2019-12-17 | 2021-06-18 | 苏州东奇信息科技股份有限公司 | Modular combined noise power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101562929B (en) | Isolated driving power for high-power light emitting diode | |
| CN107493638B (en) | Based on BOOST-BUCK Converter Interleaving Parallel no electrolytic capacitor LED drive power and switching method | |
| CN102857128B (en) | AC/DC change-over circuit | |
| CN101562398B (en) | Input series connection push-pull forward converter | |
| CN2924996Y (en) | Low-cost high-performance LED lighting circuit | |
| CN101711066B (en) | LED alternating current (AC) directly-powered circuit and power supply method | |
| CN201590932U (en) | LED alternating-current direct driving circuit | |
| CN105657906A (en) | Urban road illuminating system based on vehicle noise energy collection | |
| CN203761633U (en) | Energy-saving LED traffic light with long service life | |
| CN201805579U (en) | Dimming control circuit suitable for leading edge dimmer and/or trailing edge dimmer of LED | |
| CN102611304A (en) | Novel dual-input Buck-Boost DC converter | |
| CN103648223A (en) | Multi-channel light-emitting diode (LED) linear driver | |
| CN100388867C (en) | Light source circuit of white light diode solar pole light | |
| CN103068096A (en) | Light-emitting diode (LED) lamp, current sampling circuit and drive circuit of LED lamp | |
| CN201585165U (en) | LED alternating-current direct power supply circuit | |
| CN201994862U (en) | Electroless long-lived soft-switching driving power | |
| CN103313461B (en) | Replaceable electronic ballast lamp tube | |
| CN104983279A (en) | Power generation blanket | |
| CN109936895B (en) | Intelligent control circuit of solar street lamp | |
| CN107401720A (en) | One kind carries stand-by power supply solar LED street lamp | |
| CN203398819U (en) | Electric vehicle-used photovoltaic system | |
| CN207854227U (en) | Low-voltage LED linear drive circuit | |
| CN201467514U (en) | Solar LED drive control circuit for multiplexing DC/DC converter | |
| CN206851088U (en) | A kind of LED linear double voltage driving circuit and driving power | |
| CN205883647U (en) | There is not linear constant -current drive circuit of stroboscopic LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |
|
| WD01 | Invention patent application deemed withdrawn after publication |