CN109525108A - A kind of aircraft passenger compartment 28V DC power supply - Google Patents
A kind of aircraft passenger compartment 28V DC power supply Download PDFInfo
- Publication number
- CN109525108A CN109525108A CN201811143172.9A CN201811143172A CN109525108A CN 109525108 A CN109525108 A CN 109525108A CN 201811143172 A CN201811143172 A CN 201811143172A CN 109525108 A CN109525108 A CN 109525108A
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- capacitor
- circuit
- power supply
- output
- inductance
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Classifications
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- 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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/125—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for rectifiers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rectifiers (AREA)
Abstract
A kind of aircraft passenger compartment 28V DC power supply, including power module, filter rectification module, circuit of power factor correction, DC transfer circuit, output filter circuit, multiple 28V power output terminals and the protection circuit being connected with DC transfer circuit output end being sequentially connected；115V/400Hz alternating current on aircraft is converted out 4 road 28V DC power supplies, single channel output power 12W, gross output 50W by the DC power supply；The power supply has the reliable safety protection function of series: output overvoltage/under-voltage protection function, output overcurrent/short-circuit protection function, overtemperature detection function etc..
Description
Technical field
The invention belongs to civil aviation airborne equipment technical field more particularly to a kind of aircraft passenger compartment 28V DC power supplies.
Background technique
Currently, what requirement of the airborne equipment to weight and volume was strict, aircraft passenger compartment 28V direct current can be provided
The airborne equipment in source is all the power supply comprising voltage in several modes.28V DC power supply can be exported, 110V/60Hz can be also exported
AC power source and 5V DC power supply etc..This kind of airborne power supply function is complex, meanwhile, weight of equipment is larger, usually more than
1.4Kg, volume is larger, usually more than 1500cm3.
With the development for the electronic equipment for consumption for having USB interface, 28V DC power supply is becoming the aircraft visitor of mainstream
Cabin power supply, and other types of power supply requirement gradually reduces.Traditional aircraft passenger compartment power supply cannot well
With this development trend.
Summary of the invention
It is an object of the present invention in view of the above-mentioned problems, propose a kind of aircraft passenger compartment 28V DC power supply.
A kind of aircraft passenger compartment 28V DC power supply, including be sequentially connected power module, filter rectification module, power because
Number correcting circuits, DC transfer circuit, output filter circuit, multiple 28V power output terminals and defeated with DC transfer circuit
The connected protection circuit of outlet.
The filter rectification module includes filter circuit and rectification circuit；The filter circuit output end and rectification circuit phase
Even；The filter circuit is for reducing external electronic device to the electromagnetic conductive and electromagnetic interference between 28V DC power supply；
The rectification circuit is for converting alternating current to Rectified alternating current.
The DC transfer circuit is the direct current for generating circuit of power factor correction for the effect of DC transfer circuit
Electricity is converted to stable 28V direct current.
Further, the protection circuit includes the temperature sensor, analog-digital converter, microprocessor being sequentially connected.
Further, the output filter circuit output end is connected with four 28V DC power supplies.
Further, the circuit of power factor correction includes L4981 chip control circuit.
Further, the protection circuit includes comparator circuit and output feed circuit；The comparator circuit includes
5V power supply, 24V power supply, first resistor, second resistance, 3rd resistor, the 4th circuit, the 5th resistance, the 6th resistance, the first electricity
It is appearance, the second capacitor, third capacitor, the 4th capacitor, operational amplifier, first diode, the second diode, light emitting diode, steady
Press diode, triode；Circuit first input end is protected to connect operational amplifier reverse input end, second resistance by first resistor
First end, first capacitor second end, the second capacitor first end；The second capacitor second end, second resistance second end ground connection；It protects
The second input terminal of protection circuit connects operational amplifier noninverting input, first capacitor first end by 3rd resistor；5V power supply passes through
First diode is connected with operational amplifier power input；Operational amplifier output terminal connects the second diode cathode；Two or two
Pole pipe anode sending and receiving optical diode cathode, transistor collector；24V power supply connects the 4th resistance first end, zener diode cathode；
4th resistance connects transistor collector by light emitting diode；Zener diode anode by the 5th resistance connect transistor base,
4th capacitor first end, the 6th resistance first end；4th capacitor second end, the 6th resistance second end, transistor emitter ground connection.
Further, the rectification circuit is rectifier bridge.
Further, the filter circuit is EMI filter circuit；The EMI filter circuit includes rheostat, the 5th electricity
Appearance, the first inductance, the second inductance, the 6th capacitor, the 7th capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor；The rheostat,
5th capacitor, the first inductance input terminal are in parallel with power module respectively；First inductance output end is connected with the second inductance input terminal；
The first inductance positive output terminates the 6th capacitor first end, the 8th capacitor first end；The 7th capacitor second end passes through the
Eight capacitors connect the first inductance negative output terminal；8th capacitor second terminates the first inductance negative output terminal；9th capacitor second end
The tenth capacitor first end is connect, the 9th capacitor is in parallel with the second inductance output end after connecting with the tenth capacitor；7th capacitor first end,
Tenth capacitor first end ground connection；Second inductance output end connects the rectification circuit.
The beneficial effects of the present invention are: by the 115V/400Hz alternating current on aircraft, 4 road 28V DC power supplies are exported, it is single
Road output power 12W, gross output 50W；Has signal control function；1 tunnel instruction modulating signal can be exported, machine is used to indicate
Upper passenger's portable device electricity condition；The power supply has the reliable safety protection function of series: output overvoltage/under-voltage protection function
Energy, output overcurrent/short-circuit protection, overtemperature detection function；Small in size, weight is small.
Detailed description of the invention
Fig. 1 is a kind of system diagram of aircraft passenger compartment 28V DC power supply；
Fig. 2 is protection circuit diagram of the invention；
Fig. 3 is filter circuit figure of the invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of inventive embodiments clearer, below in conjunction in the embodiment of the present invention
Attached drawing 1, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is this
Invention a part of the embodiment, instead of all the embodiments.The embodiment of the present invention described and illustrated in usual attached drawing 1 here
Component can arrange and design with a variety of different configurations.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The present embodiment provides a kind of aircraft passenger compartment 28V DC power supplies, including power module, the filter rectification being sequentially connected
Module, circuit of power factor correction, DC transfer circuit, output filter circuit, multiple 28V power output terminals and and direct current
The connected protection circuit of translation circuit output end.
Filter rectification module includes filter circuit and rectification circuit；The filter circuit output end is connected with rectification circuit；
The filter circuit is for reducing external electronic device to the electromagnetic conductive and electromagnetic interference between 28V DC power supply；Institute
Rectification circuit is stated for converting alternating current to Rectified alternating current.
DC transfer circuit is that the direct current for generating circuit of power factor correction turns for the effect of DC transfer circuit
It is changed to stable 28V direct current.Protecting circuit includes the temperature sensor, analog-digital converter, microprocessor being sequentially connected.Output
Filter circuit output end is connected with four 28V DC power supplies.Circuit of power factor correction includes L4981 chip control circuit.
Protection circuit includes comparator circuit and output feed circuit；The comparator circuit includes 5V power supply, 24V electricity
Source, first resistor, second resistance, 3rd resistor, the 4th circuit, the 5th resistance, the 6th resistance, first capacitor, the second capacitor,
Three capacitors, the 4th capacitor, operational amplifier, first diode, the second diode, light emitting diode, zener diode, three poles
Pipe；Protection circuit first input end connects operational amplifier reverse input end, second resistance first end, the first electricity by first resistor
Hold second end, the second capacitor first end；The second capacitor second end, second resistance second end ground connection；Protect circuit second defeated
Enter end and operational amplifier noninverting input, first capacitor first end are connect by 3rd resistor；5V power supply by first diode with
Operational amplifier power input is connected；Operational amplifier output terminal connects the second diode cathode；Second diode cathode sending and receiving
Optical diode cathode, transistor collector；24V power supply connects the 4th resistance first end, zener diode cathode；4th resistance passes through
Light emitting diode connects transistor collector；Zener diode anode connects transistor base, the 4th capacitor first by the 5th resistance
End, the 6th resistance first end；4th capacitor second end, the 6th resistance second end, transistor emitter ground connection.Rectification circuit is whole
Flow bridge.
Filter circuit is EMI filter circuit；The EMI filter circuit includes rheostat, the 5th capacitor, the first inductance,
Two inductance, the 6th capacitor, the 7th capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor；The rheostat, the 5th capacitor, first
Inductance input terminal is in parallel with power module respectively；First inductance output end is connected with the second inductance input terminal；First inductance
Positive output terminates the 6th capacitor first end, the 8th capacitor first end；The 7th capacitor second end connects first by the 8th capacitor
Inductance negative output terminal；8th capacitor second terminates the first inductance negative output terminal；9th capacitor second terminates the tenth capacitor the
One end, the 9th capacitor are in parallel with the second inductance output end after connecting with the tenth capacitor；7th capacitor first end, the tenth capacitor first
End ground connection；Second inductance output end connects the rectification circuit.
Filter rectifier is divided into filtering and rectification two parts.The effect of filter circuit is to reduce external electronic device pair
The electromagnetic conductive and electromagnetic interference of 28V DC power supply, while also reducing the electromagnetism of 28V DC power supply external electronic equipments
Conduction and electromagnetic interference, can be improved the Electro Magnetic Compatibility of 28V DC power supply.The effect of rectification circuit will input
Alternating current is converted to Rectified alternating current.
The effect of circuit of power factor correction is to improve 28V DC power supply to the power consumption efficiency of aircraft input power, is reduced
The reactive power of input power, and the Rectified alternating current of input is converted to stable 215V high voltage direct current.
The effect of DC transfer circuit is that the 215V high voltage direct current for generating circuit of power factor correction is converted to stabilization
28V direct current.
The effect of output filter circuit is to filter out switching harmonics on 28V DC power supply, High-frequency Interference, prevents from externally generating
Electromagnetic conductive transmitting and radiation-emitting.Meanwhile it can also filter the electromagnetic interference of subsequent equipment generation.It is straight that raising 28V can be integrated
The Electro Magnetic Compatibility in galvanic electricity source.
The effect for protecting circuit is the various electrical parameters and temperature for continuing to monitor 28V DC power supply, when relevant parameter is exceeded
When, external 28V power supply output is cut off in time.Play output overvoltage/under-voltage protection, output overcurrent/short-circuit protection, overtemperature prote
Function.
A kind of aircraft passenger compartment 28V DC power supply proposed by the present invention, by the 115V/400Hz alternating current on aircraft, conversion
4 road 28V DC power supply out, single channel output power 12W, gross output 50W；The power supply has serial reliable safeguard protection function
Can: output overvoltage/under-voltage protection function, output overcurrent/short-circuit protection function, overtemperature detection function etc..The power supply mainly includes
Following functions:
(1) the 115V/400Hz alternating current of input is handled and is converted, export 4 road 28V DC power supplies；
(2) 1 tunnel of output indicates modulating signal, is used to indicate Passenger On Board portable device electricity condition；
(3) signal control function；
(4) output overvoltage/under-voltage protection function；
(5) output overcurrent/short-circuit protection function；
(6) overtemperature detection function.
Requirement of the airborne equipment to weight and volume is strict, and aircraft passenger compartment proposed by the present invention is straight with 28V
Galvanic electricity source has a clear superiority on weight and volume: weight is no more than 0.35Kg, is equivalent to the 1/ of conventional airplane main cabin power supply
4；Volume is no more than 650cm3, is equivalent to the 2/5 of conventional airplane main cabin power supply.
115V/400Hz alternating current on aircraft is exported 4 road 28V DC power supplies, single channel output power by the DC power supply
12W, gross output 50W；Has signal control function；1 tunnel instruction modulating signal can be exported, it is portable to be used to indicate Passenger On Board
Formula equipment electricity condition；The power supply has the reliable safety protection function of series: output overvoltage/under-voltage protection function exported
Stream/short-circuit protection, overtemperature detection function；Small in size, weight is small.
In the description of the present invention, it should be noted that term " first ", " second ", " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected.
Claims (7)
1. a kind of aircraft passenger compartment 28V DC power supply, which is characterized in that including power module, the filter rectification mould being sequentially connected
Block, circuit of power factor correction, DC transfer circuit, output filter circuit, multiple 28V power output terminals and with direct current become
Change the connected protection circuit of circuit output end；
The filter rectification module includes filter circuit and rectification circuit；The filter circuit output end is connected with rectification circuit；
The filter circuit is for reducing external electronic device to the electromagnetic conductive and electromagnetic interference between 28V DC power supply；Institute
Rectification circuit is stated for converting alternating current to Rectified alternating current；
The DC transfer circuit is that the direct current for generating circuit of power factor correction turns for the effect of DC transfer circuit
It is changed to stable 28V direct current.
2. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the protection circuit includes
Temperature sensor, analog-digital converter, the microprocessor being sequentially connected.
3. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the output filter circuit
Output end is connected with four 28V DC power supplies.
4. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the PFC
Circuit includes L4981 chip control circuit.
5. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the protection circuit includes
Comparator circuit and output feed circuit；The comparator circuit include 5V power supply, 24V power supply, first resistor, second resistance,
3rd resistor, the 4th circuit, the 5th resistance, the 6th resistance, first capacitor, the second capacitor, third capacitor, the 4th capacitor, operation
Amplifier, first diode, the second diode, light emitting diode, zener diode, triode；Protect circuit first input end
Operational amplifier reverse input end, second resistance first end, first capacitor second end, the second capacitor first are connect by first resistor
End；The second capacitor second end, second resistance second end ground connection；The second input terminal of circuit is protected to connect fortune by 3rd resistor
Calculate amplifier noninverting input, first capacitor first end；5V power supply passes through first diode and operational amplifier power input
It is connected；Operational amplifier output terminal connects the second diode cathode；Second diode cathode sending and receiving optical diode cathode, triode collection
Electrode；24V power supply connects the 4th resistance first end, zener diode cathode；4th resistance connects triode collection by light emitting diode
Electrode；Zener diode anode connects transistor base, the 4th capacitor first end, the 6th resistance first end by the 5th resistance；The
Four capacitor second ends, the 6th resistance second end, transistor emitter ground connection.
6. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the rectification circuit is whole
Flow bridge.
7. a kind of aircraft passenger compartment 28V DC power supply according to claim 1, which is characterized in that the filter circuit is EMI
Filter circuit；The EMI filter circuit includes rheostat, the 5th capacitor, the first inductance, the second inductance, the 6th capacitor, the 7th electricity
Hold, the 8th capacitor, the 9th capacitor, the tenth capacitor；The rheostat, the 5th capacitor, the first inductance input terminal respectively with power supply mould
Block is in parallel；First inductance output end is connected with the second inductance input terminal；The first inductance positive output terminates the 6th capacitor first
End, the 8th capacitor first end；The 7th capacitor second end connects the first inductance negative output terminal by the 8th capacitor；8th electricity
Hold second the first inductance negative output terminal of termination；9th capacitor second terminates the tenth capacitor first end, the 9th capacitor and the tenth capacitor
It is in parallel with the second inductance output end after series connection；7th capacitor first end, the tenth capacitor first end ground connection；Second inductance output end connects
The rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811143172.9A CN109525108A (en) | 2018-09-28 | 2018-09-28 | A kind of aircraft passenger compartment 28V DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811143172.9A CN109525108A (en) | 2018-09-28 | 2018-09-28 | A kind of aircraft passenger compartment 28V DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109525108A true CN109525108A (en) | 2019-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811143172.9A Pending CN109525108A (en) | 2018-09-28 | 2018-09-28 | A kind of aircraft passenger compartment 28V DC power supply |
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| CN (1) | CN109525108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829359A (en) * | 2019-10-25 | 2020-02-21 | 天津航空机电有限公司 | Power driving circuit with overload protection function |
Citations (3)
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|---|---|---|---|---|
| CN102437752A (en) * | 2010-09-29 | 2012-05-02 | 航天科工惯性技术有限公司 | Grading limiting circuit for aerospace alternative-current/direct-current (AC/DC) converter |
| CN202978733U (en) * | 2012-12-28 | 2013-06-05 | 中国电子科技集团公司第五十四研究所 | Power distribution network device |
| CN105305797A (en) * | 2015-10-15 | 2016-02-03 | 中国兵器工业集团第二一四研究所苏州研发中心 | Overvoltage and undervoltage protection circuit for output of DC/DC power supply |
-
2018
- 2018-09-28 CN CN201811143172.9A patent/CN109525108A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437752A (en) * | 2010-09-29 | 2012-05-02 | 航天科工惯性技术有限公司 | Grading limiting circuit for aerospace alternative-current/direct-current (AC/DC) converter |
| CN202978733U (en) * | 2012-12-28 | 2013-06-05 | 中国电子科技集团公司第五十四研究所 | Power distribution network device |
| CN105305797A (en) * | 2015-10-15 | 2016-02-03 | 中国兵器工业集团第二一四研究所苏州研发中心 | Overvoltage and undervoltage protection circuit for output of DC/DC power supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110829359A (en) * | 2019-10-25 | 2020-02-21 | 天津航空机电有限公司 | Power driving circuit with overload protection function |
| CN110829359B (en) * | 2019-10-25 | 2021-10-15 | 天津航空机电有限公司 | Power driving circuit with overload protection function |
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Application publication date: 20190326 |