CN106877681A - A kind of supply convertor and balance of flux adjusting method for Electronically Controlled Pneumatic Brake Systems - Google Patents
A kind of supply convertor and balance of flux adjusting method for Electronically Controlled Pneumatic Brake Systems Download PDFInfo
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- CN106877681A CN106877681A CN201710086648.9A CN201710086648A CN106877681A CN 106877681 A CN106877681 A CN 106877681A CN 201710086648 A CN201710086648 A CN 201710086648A CN 106877681 A CN106877681 A CN 106877681A
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- module
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- power amplifier
- amplifier board
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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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- 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
Abstract
The invention discloses a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems and balance of flux adjusting method, the supply convertor includes the first main power amplifier board, the second main power amplifier board, drive circuit, control circuit and switching circuit；The first main power amplifier board, the input of the second main power amplifier board and output end are connected by locomotive power supply bus and PCB layout with locomotive 110V power supply sources and switching circuit respectively；Wherein, the main topology of the first main power amplifier board has used the topology of push-pull ortho-exciting, by setting up balance of flux adjuster so that the balance of flux problem in conventional push-pull circuit is resolved；The supply convertor is applied to the work of various environment, is powered for ECP brakes provides power supply, the problems such as solve push-pull circuit magnetic flux imbalance, normal work under complex environment, has a good application prospect.
Description
Technical field
The invention belongs to railway locomotive brake field, be related to a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems and
Balance of flux adjusting method.
Background technology
It is stepped up with number is opened the day of railway locomotive, ensures that locomotive safety running is one of task of the most important thing.Though
Right conventional power source converter can realize basic power conversion function, but not consider actual locomotive in its design process
High temperature environment in the supply convertor course of work, cannot guarantee that supply convertor in this strong electromagnetic interference environment of locomotive
Under still being capable of normal work.While the small size requirement during locomotive operation cannot be met to supply convertor.Traditional
Supply convertor does not consider that the protection of electrical locomotive power converter will in having part safeguard measure, but its design process yet
Ask, it is impossible to ensure that supply convertor protects supply convertor with outside in time under all kinds of emergency cases (such as short-circuit, overload)
Circuit, the also all kinds of special protections not for electrical locomotive power converter want summing target (such as quick response index) to take phase
The measure answered.This leaves hidden danger to motorcycle safety.In the conventional push-pull topological transformation device course of work, it is impossible to avoid magnetic flux uneven
The problem of weighing apparatus.Because locomotive Electronically Controlled Pneumatic Brake Systems need real-time ensuring supply convertor each several part to work surely in locomotive operation
Fixed reliable, the unbalanced problem of magnetic flux also leaves hidden danger to traffic safety.To strengthen to locomotive Electronically Controlled Pneumatic Brake Systems
Power quality is controlled, and improves system security and stability, it is necessary to develop the supply convertor of Electronically Controlled Pneumatic Brake Systems, is system
Power supply provides a good platform.
The content of the invention
In order to solve the technical problem that locomotive Electronically Controlled Pneumatic Brake Systems are powered, the present invention provides a kind of for automatically controlled air
The supply convertor and balance of flux adjusting method of brakes.
A kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, including the first main power amplifier board, the second main power amplifier board, drive
Dynamic circuit, control circuit and switching circuit；
The first main power amplifier board, the input of the second main power amplifier board and output end respectively by locomotive power supply bus and
PCB layout is connected with locomotive 110V power supply sources and switching circuit；
Locomotive 110V power supply sources, the first main power amplifier board and drive circuit respectively by PCB layout, control circuit bus and
PWM output bus is connected with the control circuit；
The output end of the drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
The first main power amplifier board includes the first input filter module, the transformer push-pull ortho-exciting Top Modules that are sequentially connected
Block, full bridge rectifier, peak absorbing mixed-media network modules mixed-media and the first output filter module；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
The second main power amplifier board includes the second input filter module, flyback topologies module, the second output that are sequentially connected
Set between filtration module and output protection module, and the input of flyback topologies module and the output end of output protection module
There is control module.
Further, the control circuit includes that control power supply, current sample module, PWM circuit, balance of flux are adjusted
Section device, output protection module, voltage sample module and main circuit regulating error device；The control power supply and locomotive power supply power supply
It is connected, and for control circuit is powered；
Two winding currents on the current sample module collection transformer push-pull ortho-exciting topography module；
The voltage sample module gathers the voltage in the output end of the first main power amplifier board；
The current sample module, balance of flux adjuster and PWM circuit are sequentially connected；
The voltage sample module, main circuit regulating error device and PWM circuit are sequentially connected；
The output end of the first main power amplifier board is connected by output protection module with PWM circuit；
The control circuit is connected with switching circuit.
Further, the balance of flux adjuster include difference block, type Ⅱerror adjustment module, inversed module and
Resistance pressure-dividing network module；
The difference block is connected with the current sample module in control circuit；
The difference block, type Ⅱerror adjustment module, inversed module and resistance pressure-dividing network module are sequentially connected；
The output end of the phase inverter and the output end of main circuit regulating error device with resistance pressure-dividing network module
Input is connected；
The output end of the resistance pressure-dividing network is connected with PWM circuit.
Further, the drive circuit includes light-coupled isolation module and recommending output mode module, the light-coupled isolation module
Connect connection control circuit, recommending output mode connects the first main power amplifier board.
The balance adjusting method of a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, first, using two pieces of main work(
Rate plate is connected by locomotive power supply bus and PCB layout with locomotive 110V power supply sources and switching circuit respectively；
Secondly, by locomotive 110V power supply sources, the first main power amplifier board and drive circuit respectively by PCB layout, control circuit
Bus and PWM output bus are connected with the control circuit, and the output end of drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
Balance of flux adjuster is set in circuit is controlled, using balance of flux adjuster to the change in the first main power amplifier board
Two winding currents on depressor carry out difference processing, and the signal data after difference processing is input into type Ⅱerror adjuster
Obtain current error regulated value；
Then, anti-phase treatment is carried out to the voltage of regulating error device using phase inverter；
Finally, the signal after anti-phase treatment, current error regulated value and main circuit electricity will be carried out using resistance pressure-dividing network
The output signal for holding up dropout regulator is interconnected, so as to reduce or raise pulsewidth, realizes the balance adjustment of supply convertor.
When the upper pipe of magnetic flux deflection, upper tube current can increase, and sampling is by after differential comparison, partial pressure electricity being given by signal
Resistance, raises down tube main circuit regulating error device voltage, while reducing upper pipe main circuit regulating error device voltage, pipe arteries and veins in reduction
Width, improves down tube pulsewidth；Same principle, when magnetic flux is partial to down tube, signal is given divider resistance by lower tube current increase,
Pipe main circuit regulating error device voltage in rising, while down tube main circuit regulating error device voltage is reduced, pipe pulsewidth in raising, drop
Low pipe pulsewidth.
Further, the described first main power amplifier board includes that the first input filter module being sequentially connected, transformer are recommended just
Swash topography module, full bridge rectifier, peak absorbing mixed-media network modules mixed-media and the first output filter module；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
The second main power amplifier board includes the second input filter module, flyback topologies module, the second output that are sequentially connected
Set between filtration module and output protection module, and the input of flyback topologies module and the output end of output protection module
There is control module.
Beneficial effect
The invention provides a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems and balance of flux adjusting method, should
Supply convertor includes the first main power amplifier board, the second main power amplifier board, drive circuit, control circuit and switching circuit；Described
One main power amplifier board, the input of the second main power amplifier board and output end pass through locomotive power supply bus and PCB layout and locomotive respectively
110V power supply sources are connected with switching circuit；Wherein, the main topology of the first main power amplifier board has used the topology of push-pull ortho-exciting, by increasing
If balance of flux adjuster so that the balance of flux problem in conventional push-pull circuit is resolved；The supply convertor is applied to
The work of various environment, powers for ECP brakes provides power supply, solves under push-pull circuit magnetic flux imbalance, complex environment
Normal work the problems such as, have a good application prospect.
Brief description of the drawings
Fig. 1 is the structural representation of supply convertor of the present invention；
Fig. 2 is balance of flux adjuster operating diagram；
Fig. 3 is the output performance test job schematic diagram of supply convertor of the present invention；
Fig. 4 is to carry out double power supply parallel test job schematic diagram using the present invention.
Specific embodiment
Below in conjunction with accompanying drawing and example, the present invention is described further.
As shown in figure 1, a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, including the first main power amplifier board, second
Main power amplifier board, drive circuit, control circuit and switching circuit；
The first main power amplifier board, the input of the second main power amplifier board and output end respectively by locomotive power supply bus and
PCB layout is connected with locomotive 110V power supply sources and switching circuit；
Locomotive 110V power supply sources, the first main power amplifier board and drive circuit respectively by PCB layout, control circuit bus and
PWM output bus is connected with the control circuit；
The output end of the drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
The first main power amplifier board includes the first input EMI filtration modules, the transformer push-pull ortho-exciting topology that are sequentially connected
Module, full bridge rectifier, peak absorbing mixed-media network modules mixed-media and the first output EMI filtration modules；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
It is the second input EMI filtration modules that the second main power amplifier board includes being sequentially connected, flyback topologies module, second defeated
Go out EMI filtration modules and output protection module, and flyback topologies module input and output protection module output end it
Between be provided with control module.
The control circuit includes control power supply, current sample module, PWM circuit, balance of flux adjuster, output
Protection module, voltage sample module and main circuit regulating error device；The control power supply is connected with locomotive power supply power supply, and is
Control circuit is powered；
Two winding currents on the current sample module collection transformer push-pull ortho-exciting topography module；
The voltage sample module gathers the voltage in the output end of the first main power amplifier board；
The current sample module, balance of flux adjuster and PWM circuit are sequentially connected；
The voltage sample module, main circuit regulating error device and PWM circuit are sequentially connected；
The output end of the first main power amplifier board is connected by output protection module with PWM circuit；
The control circuit is connected with switching circuit.
The balance of flux adjuster includes difference block, type Ⅱerror adjustment module, inversed module and electric resistance partial pressure
Mixed-media network modules mixed-media；
The difference block is connected with the current sample module in control circuit；
The difference block, type Ⅱerror adjustment module, inversed module and resistance pressure-dividing network module are sequentially connected；
The output end of the phase inverter and the output end of main circuit regulating error device with resistance pressure-dividing network module
Input is connected；
The output end of the resistance pressure-dividing network is connected with PWM circuit.
The drive circuit includes light-coupled isolation module and recommending output mode module, the light-coupled isolation module connection control electricity
Road, recommending output mode connects the first main power amplifier board.
The balance of flux adjusting method of a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, first, using two pieces
Main power amplifier board is connected by locomotive power supply bus and PCB layout with locomotive 110V power supply sources and switching circuit respectively；
Secondly, by locomotive 110V power supply sources, the first main power amplifier board and drive circuit respectively by PCB layout, control circuit
Bus and PWM output bus are connected with the control circuit, and the output end of drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
Balance of flux adjuster is set in circuit is controlled, as shown in Fig. 2 using balance of flux adjuster to the first main work(
Two winding currents on transformer in rate plate carry out difference processing, and the signal data after difference processing is input into two types
Regulating error device obtains current error regulated value；
Then, anti-phase treatment is carried out to the voltage of regulating error device using phase inverter；
Finally, the signal after anti-phase treatment, current error regulated value and main circuit electricity will be carried out using resistance pressure-dividing network
The output signal for holding up dropout regulator is interconnected, so as to reduce or raise pulsewidth, realizes the balance adjustment of supply convertor.
When the upper pipe of magnetic flux deflection, upper tube current can increase, and sampling is by after differential comparison, partial pressure electricity being given by signal
Resistance, raises down tube main circuit regulating error device voltage, while reducing upper pipe main circuit regulating error device voltage, pipe arteries and veins in reduction
Width, improves down tube pulsewidth；Same principle, when magnetic flux is partial to down tube, signal is given divider resistance by lower tube current increase,
Pipe main circuit regulating error device voltage in rising, while down tube main circuit regulating error device voltage is reduced, pipe pulsewidth in raising, drop
Low pipe pulsewidth.
The first main power amplifier board includes the first input filter module, the transformer push-pull ortho-exciting Top Modules that are sequentially connected
Block, full bridge rectifier, peak absorbing mixed-media network modules mixed-media and the first output filter module；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
The second main power amplifier board includes the second input filter module, flyback topologies module, the second output that are sequentially connected
Set between filtration module and output protection module, and the input of flyback topologies module and the output end of output protection module
There is control module.
First input EMI is filtered for realizing the filtering to locomotive 110V, for rear class transformer push-pull ortho-exciting topology is provided
Frequency signal during normal work, it is ensured that system working stability.
Transformer push-pull ortho-exciting topography module is used to realize two functions, on the one hand realizes being input into 110V's and output 230V
Electrical isolation；On the other hand, using the pulse width modulated wave obtained from drive circuit, will be through the filtered locomotive 110V direct currents of EMI
Electricity is converted to alternating-current pulse ripple, and delivers to rear class full bridge rectifier.
Full bridge rectifier is used to realize for the impulse wave that transformer push-pull ortho-exciting topology is obtained being converted into DC pulse ripple.
On the one hand DC pulse ripple is smoothed to the 230V of small ripple for realizing two functions for peak absorbing mixed-media network modules mixed-media
Direct current output；On the other hand, the spike in full bridge rectifier and the flat ripple of output is absorbed.
First output EMI filtration modules are used to realize filtering the EMI for exporting 230V, reduce power supply electronic equipment to external world
Electromagnetic interference.
Second input EMI filtration modules are used to realize the filtering to locomotive 110V, for rear class flyback topologies provide normal work
Frequency signal when making, it is ensured that system working stability.
Flyback topologies module is used to realize two functions that on the one hand realization to be input into the electrical isolation of 110V and output 230V；
On the other hand, using the pulse width modulated wave obtained from control circuit, will be converted to through the filtered locomotive 110V direct currents of EMI small
The direct current 24V outputs of ripple.
Second output EMI filtration modules are used to realize filtering the EMI for exporting 24V, reduce power supply electronic equipment to external world
Electromagnetic interference.
Output protection module is used for the electic protection for realizing main power amplifier board 2 and extraneous electronic equipment, when output overcurrent,
Produce protection signal to send to control circuit, complete defencive function.
As shown in figure 3, carrying out output characteristics test job schematic diagram using supply convertor of the present invention.Wherein lead to
Letter module provides power supply and is reliably communicated with during external testing, sends power work state；It is outside to control communication module
Control signal provides transmission channel；All kinds of loads in load blocks simulation locomotive actual moving process；Output acquisition module is born
Duty exports quality analysis to power supply, judges whether to meet design requirement.
As shown in figure 4, carrying out double power supply parallel test job schematic diagram using supply convertor of the present invention.Wherein
Two tested power supplys use direct parallel-connection structure, and communication module provides the communication during tested power supply and external testing, sends
Power work state；Communication module is controlled to provide transmission channel for external control signal；Load blocks simulate locomotive actual motion
During all kinds of loads；Output acquisition module is responsible for exporting quality analysis to power supply, judges whether to meet design requirement.
The test carries out performance detection, predominantly power source performance parameter testing to the module of power supply.
All primary demands by studying locomotive Electronically Controlled Pneumatic Brake Systems supply convertor of the invention, the extraneous work(of analysis
The demands such as rate demand, power volume, temperature, realize while meeting the power source change device of the demands such as power, volume, temperature；
For all kinds of situations that the train Electronically Controlled Pneumatic Brake Systems power supply external world is likely to occur, take to output voltage electricity
Stream, input voltage and input current sampling, and judge whether power supply has input respectively using hardware and software in circuit is controlled, exported
The phenomenon of stream is pressed through, pwm signal is turned off in time, reach corresponding protection purpose；
For all kinds of interference produced in locomotive braking system power work environment, addition input and output are internally taken
The method of EMI filtering, reaches the purpose of suppression electromagnetic interference；
For the magnetic flux imbalance situation that locomotive braking system supply convertor inside occurs, adjusted by setting up balance of flux
Section device is overcome.In summary, the present invention realizes the power conversion for meeting train Electronically Controlled Pneumatic Brake Systems safety requirements
Device.
Claims (6)
1. a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, it is characterised in that including the first main power amplifier board, the second master
Power amplifier board, drive circuit, control circuit and switching circuit；
The first main power amplifier board, the input of the second main power amplifier board and output end pass through locomotive power supply bus and PCB cloth respectively
Line is connected with locomotive 110V power supply sources and switching circuit；
Locomotive 110V power supply sources, the first main power amplifier board and drive circuit are defeated by PCB layout, control circuit bus and PWM respectively
Go out bus to be connected with the control circuit；
The output end of the drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
It is the first input filter module that the first main power amplifier board includes being sequentially connected, transformer push-pull ortho-exciting topography module, complete
Bridge rectification circuit, peak absorbing mixed-media network modules mixed-media and the first output filter module；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
The second main power amplifier board includes the second input filter module, flyback topologies module, the second output filtering that are sequentially connected
Control is provided between module and output protection module, and the input of flyback topologies module and the output end of output protection module
Molding block.
2. the supply convertor for Electronically Controlled Pneumatic Brake Systems according to claim 1, it is characterised in that the control
Circuit includes that control power supply, current sample module, PWM circuit, balance of flux adjuster, output protection module, voltage are adopted
Egf block and main circuit regulating error device；The control power supply is connected with locomotive power supply power supply, and for control circuit is powered；
Two winding currents on the current sample module collection transformer push-pull ortho-exciting topography module；
The voltage sample module gathers the voltage in the output end of the first main power amplifier board；
The current sample module, balance of flux adjuster and PWM circuit are sequentially connected；
The voltage sample module, main circuit regulating error device and PWM circuit are sequentially connected；
The output end of the first main power amplifier board is connected by output protection module with PWM circuit；
The control circuit is connected with switching circuit.
3. the supply convertor for Electronically Controlled Pneumatic Brake Systems according to claim 2, it is characterised in that the magnetic flux
Balance regulator includes difference block, type Ⅱerror adjustment module, inversed module and resistance pressure-dividing network module；
The difference block is connected with the current sample module in control circuit；
The difference block, type Ⅱerror adjustment module, inversed module and resistance pressure-dividing network module are sequentially connected；
The output end of the phase inverter and the output end of main circuit regulating error device with the input of resistance pressure-dividing network module
End is connected；
The output end of the resistance pressure-dividing network is connected with PWM circuit.
4. the supply convertor for Electronically Controlled Pneumatic Brake Systems according to claim any one of 1-3, it is characterised in that
The drive circuit includes light-coupled isolation module and recommending output mode module, and the light-coupled isolation module connects connection control circuit, recommends
Output the first main power amplifier board of connection.
5. the balance of flux adjusting method of a kind of supply convertor for Electronically Controlled Pneumatic Brake Systems, it is characterised in that first,
It is connected with locomotive 110V power supply sources and switching circuit by locomotive power supply bus and PCB layout respectively using two pieces of main power amplifier boards；
Secondly, by locomotive 110V power supply sources, the first main power amplifier board and drive circuit respectively by PCB layout, control circuit bus
And PWM output bus is connected with the control circuit, and the output end of drive circuit is connected with the first main power amplifier board；
The switching circuit is connected by power supply output bus with external power load；
Balance of flux adjuster is set in circuit is controlled, using balance of flux adjuster to the transformer in the first main power amplifier board
On two winding currents carry out difference processing, and the signal data after difference processing is input into type Ⅱerror adjuster obtain
Current error regulated value；
Then, anti-phase treatment is carried out to the voltage of regulating error device using phase inverter；
Finally, the signal after anti-phase treatment, current error regulated value and main circuit voltage will be carried out using resistance pressure-dividing network to miss
The output signal of dropout regulator is interconnected, so as to reduce or raise pulsewidth, realizes the balance adjustment of supply convertor.
6. method according to claim 5, it is characterised in that the first main power amplifier board includes that be sequentially connected first is defeated
Enter filtration module, transformer push-pull ortho-exciting topography module, full bridge rectifier, peak absorbing mixed-media network modules mixed-media and the first output filter
Ripple module；
PWM circuit in control circuit is connected by drive circuit with transformer push-pull ortho-exciting topography module；
The second main power amplifier board includes the second input filter module, flyback topologies module, the second output filtering that are sequentially connected
Control is provided between module and output protection module, and the input of flyback topologies module and the output end of output protection module
Molding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086648.9A CN106877681B (en) | 2017-02-17 | 2017-02-17 | It is a kind of for the supply convertor of Electronically Controlled Pneumatic Brake Systems and balance of flux adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086648.9A CN106877681B (en) | 2017-02-17 | 2017-02-17 | It is a kind of for the supply convertor of Electronically Controlled Pneumatic Brake Systems and balance of flux adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106877681A true CN106877681A (en) | 2017-06-20 |
| CN106877681B CN106877681B (en) | 2018-06-22 |
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| CN201710086648.9A Active CN106877681B (en) | 2017-02-17 | 2017-02-17 | It is a kind of for the supply convertor of Electronically Controlled Pneumatic Brake Systems and balance of flux adjusting method |
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|---|---|---|---|---|
| CN1127952A (en) * | 1995-10-26 | 1996-07-31 | 刘海先 | Low voltage DC frequency changer for vehicle |
| CN2590267Y (en) * | 2002-12-02 | 2003-12-03 | 南昌智圣电力电子设备厂 | DC-DC converter |
| US20050024901A1 (en) * | 2003-07-30 | 2005-02-03 | Delta Electronics Inc. | Primary side ZVS push-pull converter having relatively less losses |
| CN103280979A (en) * | 2013-06-27 | 2013-09-04 | 电子科技大学 | Push-pull output switch power supply |
| CN103546022A (en) * | 2013-10-31 | 2014-01-29 | 赵敏 | Industry and mining direct-current electric locomotive general power source |
| CN205070588U (en) * | 2015-07-20 | 2016-03-02 | 株洲中车电力机车配件有限公司 | Electric locomotive stand -by power supply system |
-
2017
- 2017-02-17 CN CN201710086648.9A patent/CN106877681B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127952A (en) * | 1995-10-26 | 1996-07-31 | 刘海先 | Low voltage DC frequency changer for vehicle |
| CN2590267Y (en) * | 2002-12-02 | 2003-12-03 | 南昌智圣电力电子设备厂 | DC-DC converter |
| US20050024901A1 (en) * | 2003-07-30 | 2005-02-03 | Delta Electronics Inc. | Primary side ZVS push-pull converter having relatively less losses |
| CN103280979A (en) * | 2013-06-27 | 2013-09-04 | 电子科技大学 | Push-pull output switch power supply |
| CN103546022A (en) * | 2013-10-31 | 2014-01-29 | 赵敏 | Industry and mining direct-current electric locomotive general power source |
| CN205070588U (en) * | 2015-07-20 | 2016-03-02 | 株洲中车电力机车配件有限公司 | Electric locomotive stand -by power supply system |
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| Publication number | Publication date |
|---|---|
| CN106877681B (en) | 2018-06-22 |
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