CN106059296A - Railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection - Google Patents
Railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection Download PDFInfo
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- CN106059296A CN106059296A CN201610403613.9A CN201610403613A CN106059296A CN 106059296 A CN106059296 A CN 106059296A CN 201610403613 A CN201610403613 A CN 201610403613A CN 106059296 A CN106059296 A CN 106059296A
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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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1584—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 including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/207—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage also responsive to under-voltage
Abstract
The invention relates to a railway vehicle-oriented parallelizable double-voltage power supply module with multi-protection. The power supply module comprises two paths of power supply units, wherein each path of power supply unit comprises an EMC protection and conditioning circuit, an under voltage protection circuit, a temperature protection circuit, a parallelizable double-voltage conversion circuit, a parallel output isolation circuit and a filtering and voltage stabilizing circuit; the parallelizable double-voltage conversion circuit of each path of power supply unit is provided with two groups of voltage conversion chips; the two groups of voltage conversion chips share a front-end protection circuit; both the two groups of voltage conversion chips are provided with mode switch pins; when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched off, the two paths of power supply units are output in parallel in a hot standby manner; and when the mode switch pins of the voltage conversion chips corresponding to the two paths of power supply units are switched on, the two paths of power supply units are output in parallel in a current sharing manner. The power supply module provided by the invention is convenient and suitable for different occasions, and has the effects of reducing the cost and shortening the development period.
Description
Technical field
The present invention relates to a kind of power module, specifically, relating to a kind of band multiple protective being applied to rail vehicle can
Double-voltage electric power module in parallel.
Background technology
At present, the power module of rail vehicle mostly uses single supply module or single supply Redundancy power supply, and to electricity
Source module provides basis protective measure.The shortcoming of above two power module is: 1) power failure once occurs in single supply module,
The loss of partially or completely function of supplying power can be caused, increase the driving risk of rail vehicle.2) single supply Redundancy power supply
Generally using diode to do to isolate, shortcoming is that power consumption is big, voltage loss is big and area of dissipation big, needs multiple voltage in load
Time, need to set up new power, increase power supply cost and take up room.
A kind of Width funtion as open in China Patent No. CN102064683B input, voltage stabilizing output type power module, including protecting
Protection circuit, voltage conversion circuit and voltage-stabilizing output circuit, protection circuit is connected with voltage conversion circuit by filter circuit, protection
Circuit includes current foldback circuit and EMC protection circuitry, by current foldback circuit, when making input voltage stream or short circuit occurred
In circuit, device is unlikely to damaged；Through EMC circuit protection, noise in input voltage and ripple are reduced, capacity of resisting disturbance
By force.Above-mentioned power module change-over circuit uses EMC protection and overcurrent protection, as the prime protection circuit of power module, voltage
DC110V Width funtion is converted to the narrow voltage of DC5V voltage stabilizing by change-over circuit, i.e. this power module use for single supply supplier of electricity
Formula, there is aforesaid drawbacks in single supply power supply mode.
Summary of the invention
It is an object of the invention to provide a kind of band multiple protective being applied to rail vehicle can double-voltage electric power module in parallel,
Use front-end protection circuit that power supply is carried out overvoltage/undervoltage and temperature protection, it is achieved the output of mono-/bis-voltage form or mono-/bis-voltage are also
Connection output.
The technical scheme is that a kind of band multiple protective being applied to rail vehicle can double-voltage electric power mould in parallel
Block, this power module includes that two-way power subsystem, every road power subsystem all include EMC protection modulate circuit, overvoltage/undervoltage protection electricity
Road, temperature protection circuit, can twin voltage change-over circuit in parallel, Parallel opertation isolation circuit and filter regulator circuit, EMC protects tune
Reason circuit output end connects over under-voltage protection circuit and temperature protection circuit, and three constitutes front-end protection circuit, and overvoltage/undervoltage is protected
After circuit and temperature protection circuit parallel connection successively with can twin voltage change-over circuit in parallel, Parallel opertation isolation circuit and filtering voltage regulation
Circuit connects；Described every road power subsystem can be equipped with two groups of voltage conversion chip, two groups of electricity by twin voltage change-over circuit in parallel
Pressure conversion chip compatible front-end protection circuit, two groups of voltage conversion chip are equipped with mode switch pin, disconnect two-way power supply list
The mode switch pin of the corresponding voltage conversion chip of unit, two-way power subsystem exports in the way of hot standby；Connect two-way power supply
The mode switch pin of the corresponding voltage conversion chip of unit, two-way power subsystem exports in the way of parallel current-sharing.
Preferably, described EMC protection modulate circuit includes modulate circuit input X1, varistor RV3, protective tube
F1, filter capacitor C3, common mode inductance L1, capacitance group C4, TVS diode, counnter attack diode D6, modulate circuit input X1 is successively
Connect varistor RV3, protective tube F1, filter capacitor C3, common mode inductance L1, capacitance group C4, TVS diode and counnter attack diode
D6, modulate circuit input X1 connect 110V DC source, varistor RV3 and filter capacitor C3 all with 110V DC source also
Connection；Protective tube F1 is series between varistor RV3 and filter capacitor C3；TVS diode includes the first TVS diode D4 and
Two TVS diode D5, the first TVS diode D4 positive pole and the second TVS diode D5 positive pole are connected, the first TVS diode D4
Negative pole connects counnter attack diode D6, and counnter attack diode D6 negative pole is output as modulate circuit 110VA unidirectional current.
Preferably, described over under-voltage protection circuit includes bleeder circuit, comparator circuit, metal-oxide-semiconductor on-off circuit and event
Barrier indicating circuit, bleeder circuit input connects+110VA unidirectional current, and bleeder circuit outfan connects comparator circuit, comparator
Circuit output end connects metal-oxide-semiconductor on-off circuit and failure indicating circuit.
Preferably, described temperature protection circuit and over under-voltage protection circuit share a set of metal-oxide-semiconductor on-off circuit, and temperature is protected
Protection circuit is provided with temperature acquisition chip U5 and temperature fault display lamp D26, temperature acquisition chip U5 be provided with temperature threshold set end,
First outfan TH and the second outfan TL, temperature threshold sets end and connects temperature setting resistor, the first outfan TH and second
Outfan TL connects MOS switch pipe Q1 grid G.
Preferably, described Parallel opertation isolation circuit includes high_voltage isolation output circuit U2 and low pressure spacing output circuit
U1, high_voltage isolation output circuit U2 support 9～80V voltage inputs, and low pressure spacing output circuit U1 supports 0～18V voltage input.
Described high_voltage isolation output circuit U2 uses metal-oxide-semiconductor to add metal-oxide-semiconductor drive circuit mode, and metal-oxide-semiconductor drive circuit outfan connects MOS
Tube grid G, metal-oxide-semiconductor source S connects+24V unidirectional current, metal-oxide-semiconductor drain D output+24VA unidirectional current.Low pressure spacing output circuit U1
Identical with the way of output of described high_voltage isolation output circuit U2.
Preferably, described filter regulator circuit includes π type filter circuit and stabilivolt, and π type filter circuit input is even
Connecing+24VA unidirectional current, π type filter circuit outfan exports 24V1+ unidirectional current for load after stabilivolt voltage stabilizing.
The present invention having the beneficial effect that compared with prior art
1) this power module is with multiple protective circuit, including front-end protection circuit and post processing electric circuit, passes through front end
Protection circuit carries out electromagnetic compatibility protection, overvoltage/undervoltage protection and temperature protection to power module；By post processing electric circuit, to electricity
Source module carries out isolation and voltage stabilizing processes, and effectively protects power module, increases Product Safety；
2) flexible configuration, this power module by can twin voltage change-over circuit in parallel realize mono-/bis-voltage form export or
Mono-/bis-voltage parallel exports, and output mode is chosen as Hot Spare/current-sharing, and the convenient difference occasion that is suitable for, reduction cost, shortening is opened
The cycle of sending out；
3) way of output uses isolation and amplifier in parallel, can effectively reduce power consumption, heat radiation and voltage loss, and electric current transmission is smooth
Dead-beat, if power module breaks down or short circuit, can rapidly switch off, reduce reverse current impact, improve product reliability；
4) possess fault diagnosis functions, by external indication lamp display temperature, overvoltage/undervoltage fault, improve maintenance convenience；
5) can the twin voltage change-over circuit of twin voltage change-over circuit in parallel, compatible front-end protection circuit, can effectively save unit
Device, saving space and reduction cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of power module of the present invention；
Fig. 2 is the schematic diagram of front-end protection circuit；
Fig. 3 is that EMC protects modulate circuit schematic diagram；
Fig. 4 is over under-voltage protection circuit schematic diagram；
Fig. 5 is temperature protection circuit schematic diagram；
Fig. 6 is that mono-/bis-voltage form exports schematic diagram；
Fig. 7 is that mono-/bis-voltage parallel exports schematic diagram；
Fig. 8 is high_voltage isolation output circuit schematic diagram；
Fig. 9 is low pressure spacing output circuit schematic diagram；
Figure 10 is filter regulator circuit schematic diagram.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiment 1
See Fig. 1, the present invention disclose a kind of band multiple protective being applied to rail vehicle can double-voltage electric power module in parallel,
This power module include two-way power subsystem, every road power subsystem all include EMC protection modulate circuit, over under-voltage protection circuit,
Temperature protection circuit, can twin voltage change-over circuit in parallel, Parallel opertation isolation circuit and filter regulator circuit, two-way power subsystem
Can independently export, also can pass through can twin voltage change-over circuit Parallel opertation in parallel.
See Fig. 2 and Fig. 3, EMC protection modulate circuit and include modulate circuit input X1, varistor RV3, protective tube
F1, filter capacitor C3, common mode inductance L1, capacitance group C4, TVS diode, counnter attack diode D6, modulate circuit input X1 is successively
Connect varistor RV3, protective tube F1, filter capacitor C3, common mode inductance L1, capacitance group C4, TVS diode and counnter attack diode
D6.Wherein, modulate circuit input X1 connect 110V DC source, varistor RV3 and filter capacitor C3 all with 110V direct current
Power sources in parallel；Protective tube F1 is series between varistor RV3 and filter capacitor C3；Filter capacitor C3, common mode inductance L1, electric capacity
Group C4 constitutes the LC wave filter of modulate circuit；TVS diode includes the first TVS diode D4 and the second TVS diode D5, first
TVS diode D4 positive pole and the second TVS diode D5 positive pole are connected, and the first TVS diode D4 negative pole connects counnter attack diode
D6, counnter attack diode D6 can effectively prevent the damage after power line reversal connection to subsequent conditioning circuit, export through counnter attack diode D6 negative pole
For modulate circuit 110VA unidirectional current.EMC protection modulate circuit can effectively prevent surge, impulse train and space radiation interference, conditioning
After input voltage noise and ripple be effectively suppressed.
EMC protection modulate circuit outfan connects over under-voltage protection circuit, sees Fig. 2 and Fig. 4, over under-voltage protection circuit bag
Including bleeder circuit, comparator circuit, metal-oxide-semiconductor on-off circuit and failure indicating circuit, it is straight that bleeder circuit input connects+110VA
Stream electricity, bleeder circuit outfan connects comparator circuit, and comparator circuit outfan connects metal-oxide-semiconductor on-off circuit and indicating fault
Circuit, controls output-110VB unidirectional current by metal-oxide-semiconductor on-off circuit, owes overvoltage fault by failure indicating circuit instruction.
Over under-voltage protection circuit particularly as follows:
Bleeder circuit includes the first divider resistance R31 and the second divider resistance R33, and comparator circuit includes the first comparator
U4A and the second comparator U4B, metal-oxide-semiconductor on-off circuit uses MOS switch pipe Q1, and failure indicating circuit includes under-voltage display lamp D18
With overvoltage display lamp D20.First divider resistance R31 input connects+110VA unidirectional current, and the first divider resistance R31 outfan is even
Connect the first comparator U4A in-phase input end, the second divider resistance R33, the second comparator U4B inverting input, the second dividing potential drop electricity
The resistance R33 other end connects-110VA unidirectional current.First comparator U4A inverting input and the second comparator U4B in-phase input end
Connect reference voltage V1；The outfan of the first comparator U4A and the second comparator U4B connects the output of Bing Fen tri-tunnel: 1 tunnel output is even
Meet the under-voltage display lamp D18 and overvoltage display lamp D20 of failure indicating circuit；1 tunnel output connects high level through the first resistance R27
V2；1 tunnel output connects MOS switch pipe Q1 grid G.MOS switch pipe Q1 source S connects-110VA unidirectional current；MOS switch pipe Q1's
Drain D connects-110VB unidirectional current.
The work process of above-mentioned over under-voltage protection circuit is:
+ 110VA unidirectional current after the bleeder circuit dividing potential drop that the first divider resistance R31 and the second divider resistance R33 form, with
The reference voltage V 1 of comparator circuit compares, and has following three kinds of results: 1) when virtual voltage is at minimum threshold and maximum threshold
Time between value, the first comparator U4A and the second comparator U4B all exports high level, and high level V2 makes MOS switch pipe Q1 turn on,
MOS switch pipe Q1 exports-110VB unidirectional current；2) when virtual voltage is less than minimum threshold, the first comparator U4A exports low electricity
Flat, the second comparator U4B exports high level, and high level V2 power consumption turns off at the first resistance R27, MOS switch pipe Q1, under-voltage
Display lamp D18 lights；3) when virtual voltage is higher than max-thresholds, the first comparator U4A exports high level, the second comparator
U4B output low level, high level V2 power consumption turns off at the first resistance R27, MOS switch pipe Q1, overvoltage display lamp D20 point
Bright.Wherein, the max-thresholds in above-mentioned work process and minimum threshold are by reference voltage V 1 and the electricity that is connected with reference voltage V 1
Resistance resistance determines.By over under-voltage protection circuit, protection supply voltage is not subject to exceed the voltge surge of working range, exceedes electricity
Pressure scope then cuts off circuit and by external display lamp prompting fault.
EMC protection modulate circuit outfan connects temperature protection circuit, sees Fig. 2 and Fig. 5, and temperature protection circuit is with the most deficient
Voltage protection circuit shares a set of metal-oxide-semiconductor on-off circuit, i.e. temperature protection circuit outfan and connects MOS switch pipe Q1 grid G.Temperature
Protection circuit is provided with temperature acquisition chip U5 and temperature fault display lamp D26, and temperature acquisition chip U5 is provided with temperature threshold and sets
End, the first outfan TH and the second outfan TL, wherein, temperature threshold sets end and connects temperature setting resistor, and temperature sets electricity
Resistance includes the second resistance R47, the 3rd resistance R48, the 4th resistance R49 and the 5th resistance R50, sets temperature by temperature setting resistor
Degree threshold value, temperature threshold includes minimum temperature threshold and maximum temperature threshold, and detection actual temperature is carried out with temperature threshold
Relatively, comparative result is as follows:
1) when measured temperature is between minimum temperature threshold and maximum temperature threshold, the first outfan TH and
Two outfan TL all export high level, and high level V2 makes MOS switch pipe Q1 turn on, and MOS switch pipe Q1 exports-110VB unidirectional current；
2) when measured temperature is less than minimum temperature threshold, the second outfan TL output low level, the first outfan TH output height
Level, high level V2 power consumption turns off at the first resistance R27, MOS switch pipe Q1, and temperature fault display lamp D26 lights；3) when
When measured temperature is higher than maximum temperature threshold, the second outfan TL output high level, the first outfan TH output low level,
High level V2 power consumption turns off at the first resistance R27, MOS switch pipe Q1, and temperature fault display lamp D26 lights.Temperature protection
Circuit protection power module works in normal temperature range, prevents overheating from causing the irreversible damage of power supply, once sends out
Raw temperature fault, cuts off circuit and points out fault by external display lamp.
Over under-voltage protection circuit with after temperature protection circuit parallel connection with can be connected by twin voltage change-over circuit input in parallel,
EMC protection modulate circuit, over under-voltage protection circuit, temperature protection circuit collectively constitute the front-end protection circuit of this power module.
Two groups of voltage conversion chip, two groups of voltage conversion chip compatible front-end protection circuits can be provided with by twin voltage change-over circuit in parallel.Two
Group voltage conversion chip input is all connected with+110VA unidirectional current and-110VB unidirectional current ,+110VA unidirectional current and-110VB direct current
Electricity exports+24V unidirectional current and+5V unidirectional current after twin voltage change-over circuit respectively.
Seeing Fig. 1 and Fig. 6, in Fig. 1, two-way power subsystem can independently export, and a wherein road of two-way power subsystem is optional
Power subsystem, Fig. 6 be only select a road power subsystem can the structure composition of twin voltage change-over circuit in parallel, in Fig. 6, can be in parallel
Twin voltage change-over circuit configures two groups of voltage conversion chip, the respectively first voltage conversion chip PS1 and the second voltage conversion core
Sheet PS2, if only configuring one group of voltage conversion chip, then can realize the output of univoltage standard；If configuring two groups of voltage conversions
Chip, then can realize the output of twin voltage standard.During dual output, mutually isolated between two-way voltage conversion chip, anti-interference energy
Power is strong, and conversion efficiency is high, and every road voltage conversion circuit all can carry out the output regulation of ± 10%.In each voltage conversion chip all
It is provided with Adj pin, in parallel with positive voltage by Adj pin, it is possible to increase voltage conversion chip output voltage；By Adj pin with
Ground is in parallel, can reduce voltage conversion chip output voltage.Configure convenient, flexible, can effectively save components and parts, save space and fall
Low cost.
See Fig. 1 and Fig. 7, in Fig. 1 two-way power subsystem by can twin voltage change-over circuit Parallel opertation in parallel, if electric
Source unit only configures one group of voltage conversion chip, then can realize single supply Parallel opertation；If power subsystem configures two groups of voltages
Conversion chip, then can realize twin voltage Parallel opertation.In Fig. 7, as a example by the second voltage conversion chip, first via power subsystem
Second voltage conversion chip PS2 and the second voltage conversion chip PS2 of No. second power subsystem ' it is equipped with mode switch pin
ModeSwitch, by controlling two conversion chip mode switch pin Mode Switch break-makes, controls two-way power subsystem
Can the Parallel opertation of twin voltage change-over circuit in parallel.When the mode switch pin of two conversion chips is connected, first via power supply
Second voltage conversion chip PS2 of unit and the second voltage conversion chip PS2 of No. second power subsystem ' mode switch pin
ModeSwitch connects, and two-way power subsystem exports according to equal stream mode, each undertakes a half-power；When two conversion chips
When mode switch pin disconnects, the second voltage conversion chip PS2 of first via power subsystem and the second of No. second power subsystem
Voltage conversion chip PS2 ' mode switch pin Mode Switch disconnect, two-way power subsystem exports according to hot standby mode, only
No. one power subsystem undertakes whole power, i.e. realizes univoltage current-sharing/hot standby Parallel opertation.
In like manner, if the first electricity of the first voltage conversion chip PS1 of first via power subsystem and No. second power subsystem
Pressure conversion chip PS1 ' also takes identical connection mode, i.e. realizes twin voltage current-sharing/hot standby Parallel opertation.
Parallel opertation is isolated circuit input end and can be connected by twin voltage change-over circuit outfan in parallel, sees Fig. 8 and Fig. 9,
Parallel opertation isolation circuit includes high_voltage isolation output circuit U2 and low pressure spacing output circuit U1, high_voltage isolation output circuit U2
Can support 9～80V voltage inputs, low pressure spacing output circuit U1 can support 0～18V voltage input.High_voltage isolation output circuit
U2 and low pressure spacing output circuit U1 all uses metal-oxide-semiconductor to add metal-oxide-semiconductor drive circuit mode, i.e. metal-oxide-semiconductor drive circuit outfan even
Connecing metal-oxide-semiconductor grid G, metal-oxide-semiconductor source S connects+24V unidirectional current, metal-oxide-semiconductor drain D output+24VA unidirectional current.Low pressure isolation and amplifier
Circuit U 1 uses same connected mode, exports+5VA unidirectional current.
Parallel opertation isolation circuit uses metal-oxide-semiconductor to add metal-oxide-semiconductor drive circuit mode, with conventional schottky isolation electricity
Road is compared, and can effectively reduce power consumption, heat radiation and voltage loss, and the smooth dead-beat of electric current transmission, once short circuit or event occurs in power supply
Barrier, can be rapidly switched off by metal-oxide-semiconductor, reduces reverse current impact.When having no progeny in free voltage conversion chip pass of breaking down, due to
Two voltage conversion chip parallel connections, another voltage conversion chip automatically switches to total power output immediately, it is ensured that load normal work
Make.
Seeing Figure 10, filter regulator circuit includes π type filter circuit and stabilivolt, π type filter circuit input connects+
24VA unidirectional current, π type filter circuit outfan export after stabilivolt voltage stabilizing 24V1+ unidirectional current for load, by filter
Mu balanced circuit can be that load provides running voltage the most reliably.
The power module of the present embodiment, protects modulate circuit, over under-voltage protection circuit, temperature protection circuit structure by EMC
Become the front-end protection circuit of power module, power module is carried out electromagnetic compatibility protection, overvoltage/undervoltage protection and temperature protection；Pass through
Parallel opertation isolation circuit and filter regulator circuit constitute power module post processing electric circuit, power module is carried out isolation and
Voltage stabilizing processes.Twin voltage change-over circuit can be passed through by twin voltage change-over circuit in parallel, can be when load needs multiple voltage, it is provided that many
Plant magnitude of voltage, it is achieved the output of mono-/bis-voltage form or the output of mono-/bis-voltage parallel.
Claims (8)
1. be applied to rail vehicle band multiple protective can a double-voltage electric power module in parallel, this power module includes two-way electricity
Source unit, every road power subsystem all include EMC protection modulate circuit, over under-voltage protection circuit, temperature protection circuit, can be in parallel double
Voltage conversion circuit, Parallel opertation isolation circuit and filter regulator circuit, EMC protection modulate circuit outfan connects overvoltage/undervoltage to be protected
Protection circuit and temperature protection circuit, after three constitutes front-end protection circuit, over under-voltage protection circuit and temperature protection circuit parallel connection
Successively with can twin voltage change-over circuit in parallel, Parallel opertation isolation circuit and filter regulator circuit be connected；It is characterized in that:
Described every road power subsystem can be equipped with two groups of voltage conversion chip, two groups of voltages conversions by twin voltage change-over circuit in parallel
Chip compatible front-end protection circuit, two groups of voltage conversion chip are equipped with mode switch pin, disconnect two-way power subsystem corresponding
The mode switch pin of voltage conversion chip, two-way power subsystem exports in the way of hot standby；Connect two-way power subsystem phase
The mode switch pin of the voltage conversion chip answered, two-way power subsystem exports in the way of parallel current-sharing.
Power module the most according to claim 1, it is characterised in that: described over under-voltage protection circuit include bleeder circuit,
Comparator circuit, metal-oxide-semiconductor on-off circuit and failure indicating circuit, bleeder circuit input connects+110VA unidirectional current, dividing potential drop electricity
Road outfan connects comparator circuit, and comparator circuit outfan connects metal-oxide-semiconductor on-off circuit and failure indicating circuit.
3. the power module stated according to claim 2, it is characterised in that: described temperature protection circuit is with over under-voltage protection circuit altogether
With a set of metal-oxide-semiconductor on-off circuit, temperature protection circuit is provided with temperature acquisition chip U5 and temperature fault display lamp D26, and temperature is adopted
Collection chip U5 is provided with temperature threshold and sets end, the first outfan TH and the second outfan TL, and temperature threshold sets end and connects temperature
Set resistance, the first outfan TH and the second outfan TL and connect MOS switch pipe Q1 grid G.
Power module the most according to claim 1, it is characterised in that: described Parallel opertation isolation circuit includes high_voltage isolation
Output circuit U2 and low pressure spacing output circuit U1, high_voltage isolation output circuit U2 support 9～80V voltage inputs, and low pressure is isolated
Output circuit U1 supports 0～18V voltage input.
Power module the most according to claim 4, it is characterised in that: described high_voltage isolation output circuit U2 uses metal-oxide-semiconductor
Adding metal-oxide-semiconductor drive circuit mode, metal-oxide-semiconductor drive circuit outfan connects metal-oxide-semiconductor grid G, and metal-oxide-semiconductor source S connects+24V direct current
Electricity, metal-oxide-semiconductor drain D output+24VA unidirectional current.
Power module the most according to claim 4, it is characterised in that: described low pressure spacing output circuit U1 uses metal-oxide-semiconductor
Adding metal-oxide-semiconductor drive circuit mode, metal-oxide-semiconductor drive circuit outfan connects metal-oxide-semiconductor grid G, and metal-oxide-semiconductor source S connects+5V direct current
Electricity, metal-oxide-semiconductor drain D output+5VA unidirectional current.
Power module the most according to claim 1, it is characterised in that: described filter regulator circuit includes π type filter circuit
And stabilivolt, π type filter circuit input connects+24VA unidirectional current, and π type filter circuit outfan exports after stabilivolt voltage stabilizing
24V1+ unidirectional current is for load.
Power module the most according to claim 1, it is characterised in that: described EMC protection modulate circuit includes modulate circuit
Input X1, varistor RV3, protective tube F1, filter capacitor C3, common mode inductance L1, capacitance group C4, TVS diode, counnter attack two
Pole pipe D6, modulate circuit input X1 are sequentially connected with varistor RV3, protective tube F1, filter capacitor C3, common mode inductance L1, electricity
Appearance group C4, TVS diode and counnter attack diode D6, modulate circuit input X1 connects 110V DC source, varistor RV3 and
Filter capacitor C3 is all in parallel with 110V DC source；Protective tube F1 is series between varistor RV3 and filter capacitor C3；TVS
Diode includes the first TVS diode D4 and the second TVS diode D5, the first TVS diode D4 positive pole and the second TVS diode
D5 positive pole is connected, and the first TVS diode D4 negative pole connects counnter attack diode D6, and counnter attack diode D6 negative pole is output as conditioning electricity
Road 110VA unidirectional current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610403613.9A CN106059296B (en) | 2016-06-08 | 2016-06-08 | Band multiple protective applied to rail vehicle can double-voltage electric power module in parallel |
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|---|---|---|---|
| CN201610403613.9A CN106059296B (en) | 2016-06-08 | 2016-06-08 | Band multiple protective applied to rail vehicle can double-voltage electric power module in parallel |
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| CN106059296B CN106059296B (en) | 2018-11-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849828A (en) * | 2017-03-27 | 2017-06-13 | 北京精密机电控制设备研究所 | A kind of MOSFET parallel current-equalizing circuits based on fault diagnosis |
| CN109561031A (en) * | 2018-10-12 | 2019-04-02 | 苏州科可瑞尔航空技术有限公司 | A kind of vehicle-mounted Layer 2 switch of high reliability |
| CN111049101A (en) * | 2020-01-02 | 2020-04-21 | 中车青岛四方车辆研究所有限公司 | Overvoltage protection circuit |
| RU2812647C1 (en) * | 2022-11-10 | 2024-01-31 | Общество с ограниченной ответственностью "Ледел" | Power supply for electronic equipment |
| ES2959225A1 (en) * | 2022-07-25 | 2024-02-21 | Premium S A | Surge protection module and procedure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064683A (en) * | 2010-12-29 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Wide voltage input and invariable voltage output power supply module |
| CN201937469U (en) * | 2011-02-15 | 2011-08-17 | 青岛四方车辆研究所有限公司 | DC 110V to DC 24V power supply module |
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2016
- 2016-06-08 CN CN201610403613.9A patent/CN106059296B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064683A (en) * | 2010-12-29 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Wide voltage input and invariable voltage output power supply module |
| CN201937469U (en) * | 2011-02-15 | 2011-08-17 | 青岛四方车辆研究所有限公司 | DC 110V to DC 24V power supply module |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849828A (en) * | 2017-03-27 | 2017-06-13 | 北京精密机电控制设备研究所 | A kind of MOSFET parallel current-equalizing circuits based on fault diagnosis |
| CN109561031A (en) * | 2018-10-12 | 2019-04-02 | 苏州科可瑞尔航空技术有限公司 | A kind of vehicle-mounted Layer 2 switch of high reliability |
| CN111049101A (en) * | 2020-01-02 | 2020-04-21 | 中车青岛四方车辆研究所有限公司 | Overvoltage protection circuit |
| ES2959225A1 (en) * | 2022-07-25 | 2024-02-21 | Premium S A | Surge protection module and procedure |
| RU2812647C1 (en) * | 2022-11-10 | 2024-01-31 | Общество с ограниченной ответственностью "Ледел" | Power supply for electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106059296B (en) | 2018-11-23 |
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