CN106059347B - A kind of super wide range input power converting means under the conditions of strong jamming - Google Patents
A kind of super wide range input power converting means under the conditions of strong jamming Download PDFInfo
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- CN106059347B CN106059347B CN201610388921.9A CN201610388921A CN106059347B CN 106059347 B CN106059347 B CN 106059347B CN 201610388921 A CN201610388921 A CN 201610388921A CN 106059347 B CN106059347 B CN 106059347B
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
Abstract
The invention discloses the super wide range input power converting means under the conditions of a kind of strong jamming, belong to electric power conversion apparatus, it include: the AC power source that leadage circuit includes strong jamming wide input range, first decoupling inductance, graphite gaps, second decoupling inductance and multilayer pressure sensitive device, isolation end excess voltage protection includes gas-discharge tube, common mode inductance and two-way transient state inhibit pipe, pressure stabilizing/pressure limiting circuit includes voltage control circuit and lag sorter controller, DC-DC power source translation circuit includes first order DC-DC module, second level DC-DC module and output protection switch, it further include output protection circuit.The device can realize the power conversion of 20:1 wide scope input under the conditions of strong jamming, it is classified interference mitigation technology using multi-mode more, even if ensuring that power supply will not damage under the conditions of direct lightning strike electrical interference, to improve the whole anti-interference and wide scope input variation ability to bear of power-supply system.
Description
Technical field
The invention belongs to electric power conversion apparatus, and in particular to the super wide range input power transformation under the conditions of a kind of strong jamming
Device.
Background technique
With the high speed development of national economy, the various electrical equipments used in field environment are more and more such as various
Environmental monitoring, equipment monitoring equipment, the transmission line of electricity monitoring device in outfield etc..Under these outfield particular surroundings, often do not have
Supply network provides power supply for it, needs to harvest the energy of other forms from electrical equipment environment periphery by some special methods
Amount, such as take electricity, extra high voltage network lightning protection ground wire to take electricity from sunshine, wind-force, electromagnetic wave, high voltage supply line influence.
There are two main problems for this kind of power supply mode, first is that being highly susceptible to lightning stroke, forceful electric power magnetic anomaly since field uses
Often, the strong jammings such as network load fluctuation, solar windstorm influence and damage power supply device；Second is that these power supplys obtained are limited by condition
System, output voltage is extremely unstable, and output voltage dynamic range can achieve tens times or more, may lie prostrate from several to up to a hundred
Volt is likely to.For the energy for using these to obtain from field environment, electric power conversion apparatus is allowed in field environment
It is lower to bear strongly disturbing influence, and extremely unstable, wide dynamic range voltage can be improved.
Current most of outfield power supply unit inhibits power supply only with the basic anti-interference component of level-one or two-stage
Interference, this can play protective action to general space interference mode, but can meet with for being fully exposed to field, or even directly
For the certain power supply devices being struck by lightning, it cannot play a protective role.Existing overwhelming majority electric power conversion apparatus is to input
The limitation of voltage range is all narrow, and the input voltage range of general power supply is mostly ± the 20% of voltage rating, some wide scopes
Power supply also can only achieve the input range of 2:1 or 4:1, input model of certain specific use power supplys in 10:1 of report can be seen
Enclose lower work at last have very wide input adaptability, but these power supplys be not able to satisfy still in certain special applications it is dynamic
The demand of state range, it is easy to the case where power supply damage occur.
Summary of the invention
To solve above-mentioned problems of the prior art, the present invention provides the super wide ranges under the conditions of a kind of strong jamming
Input power converting means.
The present invention is to solve above-mentioned technical problem by following technical proposals:
The present invention provides the super wide range input power converting means under the conditions of a kind of strong jamming, including leadage circuit and
It is the saturation type isolating transformer that is sequentially connected electrically with the leadage circuit, isolation end excess voltage protection, bridge rectifier, steady
Pressure/pressure limiting circuit, DC-DC power source translation circuit and output protection circuit；
The leadage circuit include AC power source and with the AC power source successively graphite gaps and multilayer pressure sensitive in parallel
Device is in series with the first decoupling inductance, the graphite gaps and the multilayer between the AC power source and the graphite gaps
The second decoupling inductance, the input terminal of the multilayer pressure sensitive device and the saturation type isolating transformer are in series between pressure-sensitive device
Mouth connection；
The isolation end excess voltage protection includes gas-discharge tube successively in parallel, common mode inductance and the suppression of two-way transient state
Tubulation, the gas-discharge tube are connect with the output port of the saturation type isolating transformer, and the two-way transient state inhibits pipe
First end is connect with the first input end of the bridge rectifier, and the two-way transient state inhibits the second end of pipe and the bridge-type whole
Flow the second input terminal connection of device；
Pressure stabilizing/the pressure limiting circuit includes that can set limited-voltage control circuit and lag sorter controller, the DC-DC power source
Translation circuit includes first order DC-DC module, second level DC-DC module and output protection switch；
First output end of the bridge rectifier passes through first switch and the second switch and the first order DC-DC module
Input terminal connection, the first output end of the bridge rectifier also passes through the first switch and third switch with described second
The input terminal connection of grade DC-DC module, the control terminal for setting limited-voltage control circuit control the disconnection of the first switch
Or closure, the output end for setting limited-voltage control circuit are connect with the input terminal for lagging sorter controller, described the
The output end of level-one DC-DC module is connect by the 4th switch with the input terminal of the output protection circuit, the second level DC-
The output end of DC module is connect by the 5th switch with the input terminal of the output protection circuit, the lag sorter controller
First control terminal control the second switch and it is described 4th switch be opened or closed, it is described lag sorter controller second
Control terminal controls being opened or closed for third switch and the 5th switch, the output end of the first order DC-DC module
It is connect by the 4th input terminal that is switched with the output protection of switch, the output end of the second level DC-DC module passes through the
The input terminal that five switches are switched with the output protection is connect, the control terminal and output protection electricity of the output protection switch
The output end on road connects, and the output protection circuit is exported DC power supply by the output end that the output protection switchs；
The second output terminal of the bridge rectifier, the ground terminal for setting limited-voltage control circuit, the lag point
Ground terminal, the ground terminal of the first order DC-DC module and the ground terminal of the second level DC-DC module of grade controller connect
To isolation ground terminal.
Preferably, it connects between the first output end of the saturation type isolating transformer and the gas-discharge tube first end
There is the insurance of the first self- recoverage, between the second output terminal of the saturation type isolating transformer and the second end of the gas-discharge tube
It is in series with the insurance of the second self- recoverage.
Preferably, it is also in series with third inductance between the first output end and the second switch of the bridge rectifier,
Pressure stabilizing/the pressure limiting circuit further includes energy-storage capacitor, the first end of the energy-storage capacitor be connected to the third inductance and
Between second switch, the second end of the energy-storage capacitor is connected to isolation ground terminal.
Preferably, the DC-DC power source translation circuit further includes the first isolating diode and the second isolating diode, described
First isolating diode is connected between the 4th switch and the output protection circuit, and first isolating diode
Cathode is connect with the input terminal that the input terminal of the output protection circuit and the output protection switch, second isolation, two poles
Pipe be connected to it is described 5th switch the output protection circuit between, and the cathode of second isolating diode with it is described defeated
The input terminal connection of the input terminal and output protection switch of circuit is protected out.
Super wide range input power converting means under the conditions of strong jamming provided by the invention has the advantages that
1, the possibility that field AC power source is damaged by strong jamming is reduced；
2, the power supply of field Larger Dynamic range can be converted to stable output to use for monitoring device；
3, strong jamming protection and Larger Dynamic range pressure stabilizing are subjected to integrated design, simplify the volume of airfield equipment；
4, the device can realize the power conversion of 20:1 wide scope input under the conditions of strong jamming, be classified using multi-mode more
Interference mitigation technology, it is ensured that even if power supply will not damage under the conditions of direct lightning strike electrical interference；
5, using multistage string and power converter topology, it is ensured that when input voltage reaches the Larger Dynamic range of 20:1, power supply
Stable voltage can be normally exported, to improve the whole anti-interference and wide scope input variation ability to bear of power-supply system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the super wide range input power converting means circuit module under the conditions of strong jamming provided in an embodiment of the present invention
Connection figure；
Fig. 2 is the super wide range input power converting means 100/200/ under the conditions of strong jamming provided in an embodiment of the present invention
300 and 400 circuit structure diagram；
Fig. 3 is the super wide range input power converting means 400/500/ under the conditions of strong jamming provided in an embodiment of the present invention
600 and 700 circuit structure diagram.
Specific embodiment
With reference to the accompanying drawing, further description of the specific embodiments of the present invention.Following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
The present invention provides the super wide range input power converting means under the conditions of a kind of strong jamming, such as Fig. 1 to Fig. 3 institute
Show, including leadage circuit 100 and the saturation type isolating transformer 200 being sequentially connected electrically with leadage circuit 100, isolation end overvoltage
Protect circuit 300, bridge rectifier 400, pressure stabilizing/pressure limiting circuit 500, DC-DC power source translation circuit 600 and output protection circuit
700。
The AC power source 101 of leadage circuit 100 including strong jamming wide input range and successively in parallel with AC power source 101
Graphite gaps 102 and multilayer pressure sensitive device 103 are in series with the first decoupling inductance between AC power source 101 and graphite gaps 102
104, it is in series with the second decoupling inductance 105 between graphite gaps 102 and multilayer pressure sensitive device 103, multilayer pressure sensitive device 103 and full
It is connected with the input port of formula isolating transformer 200.
In the present embodiment, strong jamming refers to that lightning stroke, forceful electric power magnetic anomaly, network load fluctuation, solar windstorm etc. fill power supply
The interference damage set, ultra-wide periphery refers to that voltage reaches the Larger Dynamic input range of 20:1.
Isolation end excess voltage protection 300 includes gas-discharge tube 301 successively in parallel, common mode inductance 302 and two-way
Transient state inhibits pipe 303, and gas-discharge tube 301 is connect with the output port of saturation type isolating transformer 200, and two-way transient state inhibits pipe
303 first end is connect with the first input end of bridge rectifier 400, and two-way transient state inhibits the second end of pipe 303 and bridge-type whole
Flow the second input terminal connection of device 400.Pressure stabilizing/pressure limiting circuit 500 includes that can set limited-voltage control circuit 501 and lag classification control
Device 502 processed, DC-DC power source translation circuit 600 include that first order DC-DC module 601, second level DC-DC module 602 and output are protected
Protect switch 609.
First output end of bridge rectifier 400 passes through first switch 503 and second switch 603 and first order DC-DC mould
The input terminal of block 601 connects, and the first output end of bridge rectifier 400 also passes through first switch 503 and third switch 604 and the
The input terminal of second level DC-DC module 602 connects, and can set the disconnected of the control terminal control first switch 503 of limited-voltage control circuit 501
It opens or is closed, the output end that can set limited-voltage control circuit 501 is connect with the input terminal of lag sorter controller 502, the first order
The output end of DC-DC module 601 is connect by the 4th switch 605 with the input terminal of output protection circuit 700, second level DC-DC
The output end of module 602 is connect by the 5th switch 606 with the input terminal of output protection circuit 700, and sorter controller 502 is lagged
The first control terminal control second switch 603 and the 4th switch 605 be opened or closed, lag the second of sorter controller 502
Control terminal control third switch 604 and the 5th switch 606 are opened or closed.The output end of first order DC-DC module 601 passes through
4th switch 605 is connect with the input terminal of output protection switch 609, and the output end of second level DC-DC module 602 is opened by the 5th
It closes 606 to connect with the input terminal of output protection switch 609, the control terminal of output protection switch 609 and the output protection circuit
700 output end connection, output protection circuit 700 is exported DC power supply by the output end of output protection switch 609, when defeated
Protection circuit 700, which detects, out can limit output power by output protection switch 609 when overload.
The second output terminal of bridge rectifier 400, the ground terminal that limited-voltage control circuit 501 can be set, lag grading control
The ground terminal of the ground terminal of device 502, the ground terminal of first order DC-DC module 601 and second level DC-DC module 602 be connected to every
From ground terminal.
In order to improve the safety coefficient of whole device, the first output end and gas discharge of saturation type isolating transformer 200
The first self- recoverage insurance 304, the second output terminal and gas of saturation type isolating transformer 200 are in series between 301 first end of pipe
The second self- recoverage insurance 305 is in series between the second end of discharge tube 301.
Further, third inductance is also in series between the first output end and second switch 603 of bridge rectifier 400
504, pressure stabilizing/pressure limiting circuit 500 further includes energy-storage capacitor 505, and the first end of energy-storage capacitor 505 is connected to third inductance
Between 504 and second switch 603, the second end of energy-storage capacitor 505 is connected to isolation ground terminal.
Further, DC-DC power source translation circuit 600 further includes the first isolating diode 607 and the second isolating diode
608, the first isolating diode 607 is connected between the 4th switch 605 and output protection circuit 700, and the first isolating diode
607 cathode is connect with the input terminal of the input terminal of output protection circuit 700 and output protection switch 609, the second two poles of isolation
Pipe 608 is connected between the 5th switch 606 and output protection circuit 700, and the cathode of the second isolating diode 608 and output are protected
The input terminal connection of the input terminal and output protection switch 609 of protection circuit 700.
The AC power source 101 of strong jamming wide input range enter the present apparatus after first pass through the first decoupling inductance 104 every
From protection, start the protection system of AC power source 101 itself, certain interfering energy of releasing.Pass through the second decoupling inductance 105
Strong jamming through large capacity Multi-layer graphite gap 102 carry out the first order to protection of greatly releasing, after the second decoupling inductance 105 by
Multilayer pressure sensitive device 103 carries out the second level to protection of greatly releasing.Transformation is isolated through saturation type in power supply after premenstrual two class protection
Device 200 is isolated after carrying out third level pressure limiting insulation blocking with the earth, and 200 output end of saturation type isolating transformer of floating is through first
Self- recoverage insurance 304 and the second self- recoverage insurance 305 carry out current-limiting protection.Then by gas-discharge tube 301, common mode inductance 302
The isolation end excess voltage protection 300 for inhibiting pipe 303 to constitute with two-way transient state, carries out the 4th He to possible strong jamming again
After level V over-voltage suppression, direct current is rectified into through bridge rectifier 400.
It is up to the DC power supply of 20:1 dynamic range after rectification, by first switch 503 and pressure limiting can be set by the first order
The pressure stabilizing of the composition of control circuit 501, pressure limiting circuit carry out preliminary limit pressure stabilizing, make DC voltage control in the dynamic model of about 8:1
In enclosing.According to the requirement of output voltage, sorter controller 502 is lagged by the 8:1 dynamic range voltage of input and is divided into multistage, and same
Step control second switch 603 and 605 pairs of the 4th switch multiple first order DC-DC modules 601 and second level DC-DC module in parallel
602 are automatically switched, and generate required output voltage to select the DC-DC power source translation circuit 600 of suitable parameters to work, more
The DC-DC power source translation circuit 600 of a parallel connection exports the output guarantor that output stage is sent into after the isolation of the first isolating diode 607
Protection circuit 700 is exported.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. the super wide range input power converting means under the conditions of a kind of strong jamming, which is characterized in that including leadage circuit (100)
And saturation type isolating transformer (200), the isolation end excess voltage protection being sequentially connected electrically with the leadage circuit (100)
(300), bridge rectifier (400), pressure stabilizing/pressure limiting circuit (500), DC-DC power source translation circuit (600) and output protection circuit
(700)；
The leadage circuit (100) include AC power source (101) and with the AC power source (101) successively graphite gaps in parallel
(102) and multilayer pressure sensitive device (103), first is in series between the AC power source (101) and the graphite gaps (102) and is moved back
Coupling inductance (104) is in series with the second decoupling inductance between the graphite gaps (102) and the multilayer pressure sensitive device (103)
(105), the multilayer pressure sensitive device (103) connect with the input port of the saturation type isolating transformer (200)；
The isolation end excess voltage protection (300) includes gas-discharge tube (301) successively in parallel, common mode inductance (302)
Inhibit pipe (303), the output end of the gas-discharge tube (301) and the saturation type isolating transformer (200) with two-way transient state
Mouth connection, the two-way transient state inhibit the first end of pipe (303) to connect with the first input end of the bridge rectifier (400),
The two-way transient state inhibits the second end of pipe (303) to connect with the second input terminal of the bridge rectifier (400)；
Pressure stabilizing/the pressure limiting circuit (500) includes that can set limited-voltage control circuit (501) and lag sorter controller (502), institute
Stating DC-DC power source translation circuit (600) includes that first order DC-DC module (601), second level DC-DC module (602) and output are protected
Shield switch (609)；
First output end of the bridge rectifier (400) passes through first switch (503) and second switch (603) and described first
The input terminal connection of grade DC-DC module (601), the first output end of the bridge rectifier (400) also pass through described first and open
It closes (503) and third switch (604) is connect with the input terminal of the second level DC-DC module (602), it is described to set pressure limiting control
The control terminal of circuit (501) processed controls being opened or closed for first switch (503), described to set limited-voltage control circuit
(501) output end is connect with the input terminal of lag sorter controller (502), the first order DC-DC module (601)
Output end is connect by the 4th switch (605) with the input terminal of the output protection circuit (700), the second level DC-DC mould
The output end of block (602) is connect by the 5th switch (606) with the input terminal of the output protection circuit (700), the lag
First control terminal of sorter controller (502) controls the disconnection of the second switch (603) and the 4th switch (605) or closes
It closes, the second control terminal of lag sorter controller (502) controls the third switch (604) and the 5th switch
(606) output end of be opened or closed, the first order DC-DC module (601) passes through the 4th switch (605) and the output
The input terminal of protective switch (609) connects, the output end of the second level DC-DC module (602) by the 5th switch (606) with
The input terminal connection of the output protection switch (609), the control terminal of the output protection switch (609) and the output protection
The output end of circuit (700) connects, the output end that the output protection circuit (700) passes through output protection switch (609)
DC power supply is exported；
It is the second output terminal of the bridge rectifier (400), the ground terminal for setting limited-voltage control circuit (501), described
Lag the ground terminal of sorter controller (502), the ground terminal and the second level DC-DC of the first order DC-DC module (601)
The ground terminal of module (602) is connected to isolation ground terminal.
2. the super wide range input power converting means under the conditions of strong jamming according to claim 1, which is characterized in that institute
It states and is in series with first between the first output end of saturation type isolating transformer (200) and the gas-discharge tube (301) first end
Self- recoverage insures (304), the second output terminal of the saturation type isolating transformer (200) and the gas-discharge tube (301)
The second self- recoverage insurance (305) is in series between second end.
3. the super wide range input power converting means under the conditions of strong jamming according to claim 1, which is characterized in that institute
It states and is also in series with third inductance (504), institute between the first output end of bridge rectifier (400) and the second switch (603)
Stating pressure stabilizing/pressure limiting circuit (500) further includes energy-storage capacitor (505), and the first end of the energy-storage capacitor (505) is connected to institute
It states between third inductance (504) and second switch (603), the second end of the energy-storage capacitor (505) is connected to isolation ground terminal.
4. the super wide range input power converting means under the conditions of strong jamming according to claim 1, which is characterized in that institute
Stating DC-DC power source translation circuit (600) further includes the first isolating diode (607) and the second isolating diode (608), and described
One isolating diode (607) is connected between the 4th switch (605) and the output protection circuit (700), and described the
The cathode of one isolating diode (607) and the input terminal of the output protection circuit (700) and the output protection switch (609)
Input terminal connection, second isolating diode (608) is connected to the 5th switch (606) and the output protection circuit
(700) between, and the input terminal and institute of the cathode of second isolating diode (608) and the output protection circuit (700)
State the input terminal connection of output protection switch (609).
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| US6208086B1 (en) * | 1999-12-16 | 2001-03-27 | General Electric Company | Halogen power converter with complementary switches |
| CN201830274U (en) * | 2010-03-03 | 2011-05-11 | 武汉迈威光电技术有限公司 | Ethernet interface circuit integrated module with surge protection function |
| CN101860084B (en) * | 2010-05-31 | 2012-09-05 | 北京交通大学 | Power supply source of high-voltage side measuring system |
| CN202550509U (en) * | 2012-03-20 | 2012-11-21 | 成都福兰特电子技术有限公司 | Lightning protection device for power supply |
| CN203934029U (en) * | 2013-12-31 | 2014-11-05 | 北京交通大学长三角研究院 | Full voltage input LED illuminating lamp driving power |
| CN105006968A (en) * | 2015-08-12 | 2015-10-28 | 何官超 | Voltage stabilizing output circuit topology capable of adapting to wide range input |
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Granted publication date: 20190510 Termination date: 20210602 |