CN108233708A - A kind of wide scope inputs airborne DCDC auxiliary power circuits - Google Patents
A kind of wide scope inputs airborne DCDC auxiliary power circuits Download PDFInfo
- Publication number
- CN108233708A CN108233708A CN201611156348.5A CN201611156348A CN108233708A CN 108233708 A CN108233708 A CN 108233708A CN 201611156348 A CN201611156348 A CN 201611156348A CN 108233708 A CN108233708 A CN 108233708A
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- China
- Prior art keywords
- power supply
- accessory power
- voltage
- low pressure
- input
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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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC 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
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of DC power input into DC power output without intermediate conversion into AC 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 with automatic control of output voltage or current, e.g. switching regulators with digital control
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
A kind of wide scope inputs airborne DCDC auxiliary power circuits, including high input voltage accessory power supply (1), low pressure input accessory power supply (2), the high input voltage accessory power supply (1) and the input terminal of low pressure input accessory power supply (2) are entire power input voltage, wherein high input voltage accessory power supply (1) output voltage is higher than low pressure input accessory power supply (2), when high input voltage accessory power supply (1) works, low pressure input accessory power supply (2) is in closing or halted state；The output of the high input voltage accessory power supply (1) and low pressure input accessory power supply (2) is connected respectively by diode common cathode, it can be achieved that electric current single-phase flow.
Description
Technical field
The invention belongs to airborne switch power technology fields.
Background technology
There are the power-supplying forms of wide scope input, the particularly power supply containing PFC in airborne equipment, this requires computers
Power supply has good adaptability.Simultaneously with the intelligent demand of power supply, monitoring, sampling, communication that power supply includes in itself etc.
Function also proposes requirements at the higher level to its internal auxiliary power supply.
In airborne computer power supply, accessory power supply needs the auxiliary circuits such as chip, driving circuit, logic circuit confession in order to control
Electricity is the necessary part of Switching Power Supply.Especially containing sampling, monitoring, communication etc. functions can only power supply, accessory power supply appoint
It is engaged in even more important.Accessory power supply need to meet the job requirement under Switching Power Supply startup and gamut input voltage, and output stabilization can
The voltage leaned on, and reduce loss as possible.Such power supply frequently with added in major loop transformer auxiliary winding or application it is more
The methods of winding circuit of reversed excitation, linear voltage-stabilizing circuit, is realized.
The methods of increasing winding in main transformer, can meet requirement of the regular tap power supply to accessory power supply, but work as machine
When carrying DCDC as wide scope input, there are problems for common design method.It is simple using linear circuit architectures, but be lost
Greatly, and input range is limited；Circuit of reversed excitation is extremely difficult by the design for making magnetic element to the bound for taking into account input voltage；
Often it is difficult to take into account the working condition of power initiation and low pressure input using the method for auxiliary winding, the problem is in common decompression
It is especially prominent in type Switching Power Supply or the structure of use multi-stage transformation.In summary, in the DCDC electricity of airborne wide scope input
In source, studying the designing technique of accessory power supply seems particularly necessary.
This motions sponsor has made intensive studies for the field prior art, and the solution of problem for the above-mentioned prior art
Propose this motion.
Invention content
It is an object of the present invention to provide a kind of design methods of airborne DCDC accessory power supplys.Accessory power supply can be solved by suggesting plans
When wide scope inputs, the larger adaptability problem of change range of input voltage provides a kind of designing scheme of high efficient and reliable.
The present invention solves above-mentioned technical problem by the following technical programs：
A kind of wide scope inputs airborne DCDC auxiliary power circuits, including high input voltage accessory power supply 1, low pressure input auxiliary
The input terminal of power supply 2, the high input voltage accessory power supply 1 and low pressure input accessory power supply 2 is entire power input electricity
Pressure, wherein 1 output voltage of high input voltage accessory power supply input accessory power supply 2 higher than low pressure, and high input voltage accessory power supply 1 works
When, low pressure input accessory power supply 2 is in closing or halted state；The high input voltage accessory power supply 1 and low pressure input auxiliary electricity
The output in source 2 is connected respectively by diode common cathode, it can be achieved that electric current single-phase flow.
A kind of wide scope inputs airborne DCDC auxiliary power circuits, the low pressure input accessory power supply 2 include by
Switching tube V1, diode D, inductance L and capacitance C composition conventional buck circuit structures；Wherein the first current-limiting resistance R1, the second current limliting
One end of resistance R2 and zener diode VD cathodes are connected with the output terminal of driving circuit 3, the other end of the first current-limiting resistance R1
The drain electrode of connecting valve pipe V1, the grid of other end connecting valve pipe V1 of the second current-limiting resistance R2, zener diode VD sun
The source electrode of pole connecting valve pipe V1；Divider resistance Rd1 and divider resistance Rd2 the connection output voltage of series connection and ground, it is defeated to acquire
Go out voltage, divider resistance Rd1 is connected with the tie point of divider resistance Rd2 with comparator anode；Voltage reference output connection is compared
Device negative terminal；Voltage reference is inputted is all connected with output voltage with comparator feeder ear, to obtain operating voltage；Comparator output connection
The input terminal of driving circuit 3；It is automatically begun to after collecting entire power input voltage and reaching its switching tube V1 driving cut-in voltages
Work.
The present invention design the advantages of be：1 disclosure satisfy that requirement of the wide scope input system to accessory power supply, solve flyback
Circuit is when conventional power sources device parameters difficult design when wide scope inputs the problem of；2 reduction voltage circuits use switching circuit, efficiency
Better than linear power supply；3 reduction voltage circuits realize control, driving and logic function without using PWM integrated controls chip, simply may be used
It leans on.
Description of the drawings
Attached drawing 1 is this motion overall plan schematic diagram；
Attached drawing 2 inputs the circuit of accessory power supply for 1 mesolow of attached drawing.
Specific embodiment
As shown in Figure 1, wherein 1 output voltage outline of high input voltage accessory power supply is higher than low pressure to embodiment of the present invention
When inputting the output voltage of accessory power supply 2, while making the work of high input voltage accessory power supply 1, low pressure input accessory power supply 2 should be located
In closing or halted state, i.e. U1 is more than U2.The output voltage instruction of the two is set as different value, and prevented respectively with diode
Only electric current is reversed.
The reduction voltage circuit of low pressure input accessory power supply 2 is as shown in Figure 2.The control circuit of the reduction voltage circuit has defeated simultaneously
Go out the function of closed-loop control, driving and overvoltage locking.It can be seen that output electricity of the instruction of output voltage U2 by voltage reference
Pressure and the value of divider resistance Rd1 and divider resistance Rd2 determine.And driving circuit 3 can realize the closed-loop control and field-effect of output
The switch drive of pipe V1.When input voltage is higher so that when U1 is more than U2, the output of 4 comparator of control circuit is high, switching tube V1
Shutdown, the circuit will be stopped.It in addition, can be by setting resistance, capacitance in main circuit diode, voltage such as compare at the circuits
Filter circuits are waited to inhibit spike and shake, keep output steady.
Design is applied in certain type airborne computer intelligent power of 30~200V inputs in attached drawing 1 and attached drawing 2, achieves
Good result, power supply are working properly in gamut.
Claims (2)
1. a kind of wide scope inputs airborne DCDC auxiliary power circuits, which is characterized in that including high input voltage accessory power supply (1),
Low pressure input accessory power supply (2), the high input voltage accessory power supply (1) and the input terminal of low pressure input accessory power supply (2)
It is entire power input voltage, wherein high input voltage accessory power supply (1) output voltage inputs accessory power supply (2) higher than low pressure,
When high input voltage accessory power supply (1) works, low pressure input accessory power supply (2) is in closing or halted state；The high input voltage
The output of accessory power supply (1) and low pressure input accessory power supply (2) is connected respectively by diode common cathode, it can be achieved that electric current is single-phase
Flowing.
2. a kind of wide scope according to claim 1 inputs airborne DCDC auxiliary power circuits, which is characterized in that described low
Pressure input accessory power supply (2) by switching tube (V1), diode (D), inductance (L) and capacitance (C) including forming conventional buck circuit
Structure；Wherein the first current-limiting resistance (R1), one end of the second current-limiting resistance (R2) and zener diode (VD) cathode and driving electricity
The output terminal on road (3) is connected, the drain electrode of the other end connecting valve pipe V1 of the first current-limiting resistance (R1), the second current-limiting resistance (R2)
The grid of other end connecting valve pipe (V1), zener diode (VD) anode connecting valve pipe (V1) source electrode；Series connection
Divider resistance (Rd1) and divider resistance (Rd2) connection output voltage and ground, to acquire output voltage, divider resistance (Rd1) is with dividing
The tie point of piezoresistance (Rd2) is connected with comparator anode；Voltage reference output connection comparator negative terminal；Voltage reference input with
Comparator feeder ear is all connected with output voltage, to obtain operating voltage；The input terminal of comparator output connection driving circuit (3)；
Work is automatically begun to after collecting entire power input voltage and reaching its switching tube (V1) driving cut-in voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156348.5A CN108233708B (en) | 2016-12-14 | 2016-12-14 | Wide-range input airborne DCDC auxiliary power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156348.5A CN108233708B (en) | 2016-12-14 | 2016-12-14 | Wide-range input airborne DCDC auxiliary power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108233708A true CN108233708A (en) | 2018-06-29 |
| CN108233708B CN108233708B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611156348.5A Active CN108233708B (en) | 2016-12-14 | 2016-12-14 | Wide-range input airborne DCDC auxiliary power supply circuit |
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| Country | Link |
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| CN (1) | CN108233708B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039028A (en) * | 2018-07-09 | 2018-12-18 | 华为技术有限公司 | Control circuit and power supply adaptor applied to power supply adaptor |
| CN109343628A (en) * | 2018-11-08 | 2019-02-15 | 深圳航天科技创新研究院 | A high-voltage linear regulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038154A (en) * | 1995-05-04 | 2000-03-14 | Lucent Technologies Inc. | Circuit and method for controlling a synchronous rectifier converter |
| US20030234635A1 (en) * | 2002-06-25 | 2003-12-25 | Alcatel Canada Inc. | Quick-start dc-dc converter circuit and method |
| CN1477775A (en) * | 2002-07-25 | 2004-02-25 | 株式会社理光 | Power supply method and electric source equipment capable of fast responsing input and output voltage change |
| CN102868311A (en) * | 2012-09-19 | 2013-01-09 | 华为技术有限公司 | Inverter input-stage circuit with wide voltage input range and inverter |
| CN205178873U (en) * | 2015-09-06 | 2016-04-20 | 洛阳隆盛科技有限责任公司 | High efficiency wide region direct current input circuit |
| CN105634263A (en) * | 2016-04-12 | 2016-06-01 | 上海斐讯数据通信技术有限公司 | Protection circuit self-adaptive to input voltage |
-
2016
- 2016-12-14 CN CN201611156348.5A patent/CN108233708B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038154A (en) * | 1995-05-04 | 2000-03-14 | Lucent Technologies Inc. | Circuit and method for controlling a synchronous rectifier converter |
| US20030234635A1 (en) * | 2002-06-25 | 2003-12-25 | Alcatel Canada Inc. | Quick-start dc-dc converter circuit and method |
| CN1477775A (en) * | 2002-07-25 | 2004-02-25 | 株式会社理光 | Power supply method and electric source equipment capable of fast responsing input and output voltage change |
| CN102868311A (en) * | 2012-09-19 | 2013-01-09 | 华为技术有限公司 | Inverter input-stage circuit with wide voltage input range and inverter |
| CN205178873U (en) * | 2015-09-06 | 2016-04-20 | 洛阳隆盛科技有限责任公司 | High efficiency wide region direct current input circuit |
| CN105634263A (en) * | 2016-04-12 | 2016-06-01 | 上海斐讯数据通信技术有限公司 | Protection circuit self-adaptive to input voltage |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039028A (en) * | 2018-07-09 | 2018-12-18 | 华为技术有限公司 | Control circuit and power supply adaptor applied to power supply adaptor |
| WO2020011095A1 (en) * | 2018-07-09 | 2020-01-16 | 华为技术有限公司 | Control circuit applied to power adapter, and power adapter |
| US11837957B2 (en) | 2018-07-09 | 2023-12-05 | Huawei Digital Power Technologies Co., Ltd. | Auxiliary voltage conversion unit for supplying power to a power adapter control circuit |
| CN109343628A (en) * | 2018-11-08 | 2019-02-15 | 深圳航天科技创新研究院 | A high-voltage linear regulator |
Also Published As
| Publication number | Publication date |
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| CN108233708B (en) | 2020-12-29 |
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