CN205961076U - Take NTC to gather parallelly connected driver of IGBT of function - Google Patents
Take NTC to gather parallelly connected driver of IGBT of function Download PDFInfo
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- CN205961076U CN205961076U CN201620939239.XU CN201620939239U CN205961076U CN 205961076 U CN205961076 U CN 205961076U CN 201620939239 U CN201620939239 U CN 201620939239U CN 205961076 U CN205961076 U CN 205961076U
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Abstract
The utility model discloses a take NTC to gather parallelly connected driver of IGBT of function, include: pulse treatment circuit, trouble feedback circuit, power input circuit, NTC processing circuit, the first signal keep apart unit, the 2nd signal isolation unit, keep apart transformation unit, top tube drive and protection circuit, low tube drive and protection circuit and NTC acquisition circuit, the control impuls of pulse treatment circuit keeps apart the unit through the first signal and sends into top tube drive and protection circuit and low tube drive and protection circuit for control external circuit, and receive feedback signal, feedback signal keep apart the unit through the first signal and send into trouble feedback circuit, power input circuit is top tube drive and protection circuit, low tube drive and protection circuit and NTC acquisition circuit power supply through keeping apart transformation unit, NTC acquisition circuit is used for gathering external circuit's signal. The utility model has the advantages of the many parallelly connected driving forces of IGBT, IGBT temperature signal monitoring.
Description
Technical field
The utility model is related to IGBT drive control field, and more particularly, to a kind of IGBT with NTC acquisition function is in parallel to be driven
Dynamic device.
Background technology
With the fast development of Power Electronic Technique, the power grade of electronic power conversion device is constantly lifted.
IGBT parallel connection application demand and trend are increasingly urgent.In addition the continuous improvement of the power density of converter system, current transformer works
Temperature environment very severe, IGBT excess temperature gets more and more to the failure problems that current transformer brings, and therefore the junction temperature of IGBT is carried out
Monitoring and Controlling also becomes extremely important.
In converter system, driver is considered to connect the bridge of forceful electric power side IGBT and weak-feedback side of transmission line DCU.As unsteady flow dress
Core one ring in putting, can driver possess the advantages such as IGBT multi-parallel driving force, IGBT temperature signal monitoring, to unsteady flow
The application market of device industry is expanded and system safety operation plays vital effect.
At present, there are CONCEPT, SEMIKRON, INFINEON, Bronze Swords in main both at home and abroad drive products company, fly
Bodyguard must wait, and the typical products SKYPER 32 with typical products SCALE 2 series of CONCEPT company, SEMIKRON company is
Row, INFINEON company typical products 2ED300C17-S series, Bronze Swords typical products 2QD30A17K-I serial, winged
As a example typical products STACK 4 series that bodyguard obtains, domestic outer driver mostly only possesses binary channels driving force, and its driver is not
Possess the features such as IGBT multi-parallel driving force, IGBT temperature signal monitoring.Existing product all cannot meet IGBT multi-parallel and drive
The functional requirements such as dynamic and IGBT temperature signal monitoring.
Utility model content
The technical problems to be solved in the utility model is that：The technical problem existing for prior art, this practicality is new
Type provides a kind of drive amplification not only with legacy drive, isolation, excessively stream and short-circuit protection function, also has more than IGBT simultaneously
Connection driving force, IGBT temperature signal（Or claim NTC signal）The IGBT parallel drive with NTC acquisition function of the functions such as monitoring
Device.
For solve above-mentioned technical problem, the utility model proposes technical scheme be：A kind of IGBT with NTC acquisition function
Parallel drivers, including：Pulse processing circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit, the first letter
Number isolated location, secondary signal isolated location, isolation voltage transformation unit, upper pipe drives and protection circuit, down tube drive and protection electricity
Road and NTC Acquisition Circuit；
After the control pulse of described pulse processing circuit is isolated through described first signal isolation unit, it is respectively fed to institute
State pipe to drive and protection circuit and the driving of described down tube and protection circuit, described upper pipe drives and protection circuit and described down tube
Drive and protection circuit be respectively used to control be connected external circuit, and respectively receive external circuit feedback signal, described
Feedback signal sends into described fault feedback circuit after being isolated through described first signal isolation unit；
Described power supply input circuit carries out isolating after transformation through described isolation voltage transformation unit, respectively described upper pipe drive and
Protection circuit, the driving of described down tube and protection circuit and described NTC Acquisition Circuit are powered；
Described NTC Acquisition Circuit is used for gathering the collected signal of connected external circuit, and by this signal through described
After secondary signal isolated location is isolated, send into NTC signal processing circuit.
As further improvement of the utility model, described isolation voltage transformation unit includes the first isolated from power unit and second
Isolated from power unit；Described first isolated from power unit is used for driving for described upper pipe and protection circuit and described down tube drive and
Protection circuit is powered；Described second source isolated location is used for powering for described NTC Acquisition Circuit.
As further improvement of the utility model, also include the first input/output interface, the second input/output interface and
3rd input/output interface；Described upper pipe drives and protection circuit passes through described first input/output interface with external equipment even
Connect, described second input/output interface and external equipment are passed through in described down tube driving and protection circuit and described NTC Acquisition Circuit
Connect, it is defeated that described pulse processing circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit pass through the described 3rd
Enter output interface to be connected with external equipment.
As further improvement of the utility model, described pulse processing circuit, fault feedback circuit, power input electricity
Road, NTC signal processing circuit, the first signal isolation unit, secondary signal isolated location, isolation voltage transformation unit, upper pipe drive and
Protection circuit, down tube drive and protection circuit, NTC Acquisition Circuit, the first input/output interface, the second input/output interface and the
Three input/output interfaces are arranged on same circuit board.
As further improvement of the utility model, described circuit board is divided into primary circuit area and time side electricity by fluting
Road area, described pulse processing circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit and the 3rd input and output
Interface is arranged on primary circuit area；Described upper pipe drives and protection circuit, down tube drive and protection circuit, NTC Acquisition Circuit, the
One input/output port and the second input/output port are arranged on time side circuit region.
As further improvement of the utility model, described time side circuit region is divided into upper area under control, laydown area by fluting
And acquisition zone；Described upper pipe drives and protection circuit is arranged on area under control；Described down tube drives and protection circuit is arranged on down tube
Area；Described NTC Acquisition Circuit is arranged on acquisition zone.
As further improvement of the utility model, described first input/output interface, the second input/output interface and
Three input/output interfaces are electric-connected socket.
As further improvement of the utility model, the pulse input signal of described pulse processing circuit is that differential pulse is defeated
Enter signal.
As further improvement of the utility model, described pulse processing circuit also includes pulse input signal is filtered
Ripple and anti-straight-through process.
As further improvement of the utility model, described first signal isolation unit is light-coupled isolation unit or transformer
Isolated location；Described secondary signal isolated location is light-coupled isolation unit or transformer isolation unit.
Compared with prior art, the utility model has the advantage of：
1st, the IGBT parallel drivers with NTC acquisition function of the present utility model, not only have the driving of legacy drive
Amplification, isolation, excessively stream and short-circuit protection function, also have IGBT multi-parallel driving force, IGBT temperature signal（Or claim NTC letter
Number）The functions such as monitoring.
2nd, the IGBT parallel drivers with NTC acquisition function of the present utility model, using the fluting design of circuit board, enter one
Step improves the protective capability of electrical isolation it is adaptable to temperature environment is relatively severe, the converter system of IGBT multi-parallel application.
3rd, the IGBT parallel drivers with NTC acquisition function of the present utility model, using afterwards, can make converter system
Reduce and develop single pulse processing system or device, be that converter system saves space and cost, improve current transformer
Power density.
4th, the IGBT parallel drivers with NTC acquisition function of the present utility model, using afterwards, due to having IGBT temperature
Temperature signal is fed back to the DCU being connected with the 3rd input/output port, leads in system exception by signal monitoring function in real time
When IGBT temperature is higher, DCU will carry out the effective control to current transformer operating mode, realize temperature control and the protection of IGBT.
Brief description
Fig. 1 is the utility model specific embodiment structural representation.
Fig. 2 is the utility model specific embodiment circuit board fluting schematic layout pattern.
Fig. 3 is the utility model specific embodiment use state acquisition principle schematic diagram.
Fig. 4 is the utility model specific embodiment use state connection diagram.
Specific embodiment
Below in conjunction with Figure of description and concrete preferred embodiment, the utility model is further described, but not because
This and limit protection domain of the present utility model.
As shown in figure 1, the IGBT parallel drivers with NTC acquisition function of the utility model specific embodiment, including：Arteries and veins
Rush process circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit, the first signal isolation unit, the second letter
Number isolated location, isolation voltage transformation unit, upper pipe drives and protection circuit, down tube drive and protection circuit and NTC Acquisition Circuit；Arteries and veins
Rush process circuit control pulse isolated through the first signal isolation unit after, be respectively fed to pipe drive and protection circuit and
Down tube drives and protection circuit, and upper pipe driving and protection circuit and down tube drive and protection circuit is respectively used to what control was connected
External circuit, and receive the feedback signal of external circuit respectively, feedback signal send after being isolated through the first signal isolation unit
Enter fault feedback circuit；Power supply input circuit carries out isolating after transformation through isolation voltage transformation unit, respectively goes up pipe and drives and protect
Circuit, down tube driving and protection circuit and NTC Acquisition Circuit are powered；NTC Acquisition Circuit is used for gathering connected external circuit
Collected signal, and after this signal is isolated through secondary signal isolated location, send into NTC signal processing circuit.
In the present embodiment, isolation voltage transformation unit includes the first isolated from power unit and second source isolated location；First
Isolated from power unit is used for as the driving of upper pipe and protection circuit and down tube drives and protection circuit is powered；Second source isolated location
For powering for NTC Acquisition Circuit.Also include the first input/output interface, the second input/output interface and the 3rd input and output to connect
Mouthful；Upper pipe drives and protection circuit is connected with external equipment by the first input/output interface, down tube driving and protection circuit with
NTC Acquisition Circuit is connected with external equipment by the second input/output interface, pulse processing circuit, fault feedback circuit, power supply
Input circuit, NTC signal processing circuit are connected with external equipment by the 3rd input/output interface.Pulse processing circuit, fault
Feedback circuit, power supply input circuit, NTC signal processing circuit, the first signal isolation unit, secondary signal isolated location, isolation
Voltage transformation unit, upper pipe drive and protection circuit, down tube drive and protection circuit, NTC Acquisition Circuit, the first input/output interface,
Second input/output interface and the 3rd input/output interface are arranged on same circuit board.First signal isolation unit is light
Coupling isolated location or transformer isolation unit；Secondary signal isolated location is light-coupled isolation unit or transformer isolation unit.
In the present embodiment, as shown in figure 1, the IGBT parallel drivers with NTC acquisition function of the present utility model pass through
3rd input/output interface X3 and external equipment DCU（Numerical control processing unit）Connect, by the first input/output interface X1 and the
Two input/output interface X2 are connected with external equipment IGBT circuit.In the present embodiment, IGBT circuit is half-bridge structure
PrimePACK package module.IGBT parallel drivers with NTC acquisition function of the present utility model are connect by the 3rd input and output
Mouth X3 receives the pulse signal that DCU is sent, and including upper pipe pulse signal and down tube pulse signal, carries out through pulse processing circuit
After filtering, anti-straight-through protection etc. are processed, carried out after isolation conversion by the first signal isolation unit, be respectively sent to pipe drive and
Protection circuit and down tube drive and protection circuit, and upper pipe pulse signal is driven by upper pipe and protection circuit passes through the first input and output
Interface X1 exports to external IGBT circuit, for controlling opening and turning off of pipe on IGBT circuit, down tube pulse signal by under
Pipe drives and protection circuit is exported to external IGBT circuit by the second input/output interface X2, for controlling under IGBT circuit
The opening and turning off of pipe.Control the opening and turning off of IGBT circuit, including opening and turning off under normal circumstances, be additionally included in different
In the case of often, such as the shutoff when IGBT excessively stream, short circuit, line under-voltage, thus protect the safety of IGBT and system.Upper pipe
Drive and protection circuit receives the status feedback signal of pipe on IGBT circuit also by the first input/output interface X1, and by the
One signal isolation unit sends to fault feedback circuit after being isolated.Down tube drives and protection circuit is defeated also by the second input
Outgoing interface X2 receives the status feedback signal of IGBT circuit down tube, and send after being isolated by the first signal isolation unit to
Fault feedback circuit.Status feedback signal is fed back to DCU by the 3rd input/output interface X3 by fault feedback circuit.Meanwhile,
IGBT parallel drivers with NTC acquisition function of the present utility model pass through power supply input circuit by the 3rd input/output interface X3
Obtain electric energy, and after the first isolated from power unit carries out isolating transformation, stand alone as pipe and drive and protection circuit and down tube
Drive and protection circuit, thus reducing the electrical Interference between each circuit module.Power supply input circuit is isolated by second source
Unit is powered for NTC Acquisition Circuit, and NTC Acquisition Circuit is passed through the second input/output interface X2 and gathered the temperature letter in IGBT circuit
Number VNTC, obtain the corresponding voltage signal of maximum temperature value through NTC Acquisition Circuit, and voltage-frequency conversion is carried out to this voltage signal, by
Secondary signal isolated location generates corresponding frequency signal after being isolated, frequency signal carries out letter in NTC signal processing circuit
Number process after, DCU is fed back to by the 3rd input/output interface X3, DCU parses corresponding temperature.As shown in figure 3, IGBT module
In NTC resistance RNTCOne end ground connection, the other end and resistance R0Series connection, resistance R0Another termination constant pressure source VREF, carry out partial pressure.With
The difference of temperature, corresponding NTC resistance value RNTCTo be in almost negative change, thus obtaining NTC resistance RNTCTwo is linear
The voltage V of changeNTC.This voltage VNTCCarry out voltage-frequency conversion through NTC Acquisition Circuit and voltage signal is converted to one-to-one frequency
Rate signal, exports after frequency signal isolation, feeds back to DCU by the 3rd input/output interface X3 again after NTC signal transacting.Thus
Realize conversion collecting electric signal of IGBT interior temperature signal etc. to process.
As shown in Fig. 2 in the present embodiment, circuit board is divided into primary circuit area and time side circuit region, arteries and veins by fluting
Rush process circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit and the 3rd input/output interface to be arranged on
Primary circuit area；Upper pipe drives and protection circuit, down tube drive and protection circuit, NTC Acquisition Circuit, the first input/output port
It is arranged on time side circuit region with the second input/output port.Secondary side circuit region is divided into upper area under control, laydown area by fluting and adopts
Ji Qu；Upper pipe drives and protection circuit is arranged on area under control；Down tube drives and protection circuit is arranged on laydown area；NTC collection electricity
Road is arranged on acquisition zone.By slot treatment, further each circuit module can be carried out with electrical isolation, eliminate interference, improve
The stability of circuit and adaptability.
In the present embodiment, the first input/output interface, the second input/output interface and the 3rd input/output interface are electricity
Connect socket.The pulse input signal of pulse processing circuit is differential pulse input signal.Pulse processing circuit is also included to arteries and veins
Rush input signal to be filtered and prevent straight-through process.
The IGBT parallel drivers with NTC acquisition function of the present embodiment can pass through the first input/output interface X1 and second
Input/output interface X2 realizes band NTC acquisition function of the present utility model in parallel with multiple IGBT circuit, as shown in Figure 4
IGBT parallel drivers parallel connection application drive scheme, n IGBT module（N=1,2,3 or 4）Drive scheme during application in parallel, the
One input/output interface X1 draws n road gate pole control signal GSn, control an IGBT module in n parallel IGBT module respectively
Upper pipe；Second input/output interface X2 draws n road gate pole control signal GXn, control respectively one in n parallel IGBT module
The down tube of IGBT module；The NTC signal that second input/output interface X2 receives n IGBT module carries out signal to internal drive
Process.
Above-mentioned simply preferred embodiment of the present utility model, not makees any pro forma restriction to the utility model.Though
So the utility model is disclosed above with preferred embodiment, but is not limited to the utility model.Therefore, every without departing from
The content of technical solutions of the utility model, any simply repaiies to made for any of the above embodiments according to the utility model technical spirit
Change, equivalent variations and modification, all should fall in the range of technical solutions of the utility model protection.
Claims (10)
1. a kind of IGBT parallel drivers with NTC acquisition function are it is characterised in that include：Pulse processing circuit, fault feedback
Circuit, power supply input circuit, NTC signal processing circuit, the first signal isolation unit, secondary signal isolated location, isolation transformation
Unit, upper pipe drive and protection circuit, down tube drive and protection circuit and NTC Acquisition Circuit；
After the control pulse of described pulse processing circuit is isolated through described first signal isolation unit, it is respectively fed on described
Pipe drives and protection circuit and the driving of described down tube and protection circuit, and described upper pipe drives and protection circuit and the driving of described down tube
And protection circuit be respectively used to control be connected external circuit, and respectively receive external circuit feedback signal, described feedback
Signal sends into described fault feedback circuit after being isolated through described first signal isolation unit；
Described power supply input circuit carries out isolating after transformation through described isolation voltage transformation unit, and respectively described upper pipe drives and protects
Circuit, the driving of described down tube and protection circuit and described NTC Acquisition Circuit are powered；
Described NTC Acquisition Circuit is used for gathering the collected signal of connected external circuit, and by this signal through described second
After signal isolation unit is isolated, send into NTC signal processing circuit.
2. the IGBT parallel drivers with NTC acquisition function according to claim 1 it is characterised in that：Described isolation becomes
Pressure unit includes the first isolated from power unit and second source isolated location；Described first isolated from power unit is used for as described
Pipe driving and protection circuit and described down tube drive and protection circuit is powered；Described second source isolated location is used for as described
NTC Acquisition Circuit is powered.
3. the IGBT parallel drivers with NTC acquisition function according to claim 2 it is characterised in that：Also include first
Input/output interface, the second input/output interface and the 3rd input/output interface；Described upper pipe drives and protection circuit passes through institute
State the first input/output interface to be connected with external equipment, described down tube driving and protection circuit and described NTC Acquisition Circuit are passed through
Described second input/output interface is connected with external equipment, described pulse processing circuit, fault feedback circuit, power input electricity
Road, NTC signal processing circuit are connected with external equipment by described 3rd input/output interface.
4. the IGBT parallel drivers with NTC acquisition function according to claim 3 it is characterised in that：At described pulse
Reason circuit, fault feedback circuit, power supply input circuit, NTC signal processing circuit, the first signal isolation unit, secondary signal every
From unit, isolation voltage transformation unit, upper pipe drives and protection circuit, down tube drive and protection circuit, NTC Acquisition Circuit, first defeated
Enter output interface, the second input/output interface and the 3rd input/output interface to be arranged on same circuit board.
5. the IGBT parallel drivers with NTC acquisition function according to claim 4 it is characterised in that：Described circuit board
Primary circuit area and time side circuit region, described pulse processing circuit, fault feedback circuit, power input electricity are divided into by fluting
Road, NTC signal processing circuit and the 3rd input/output interface are arranged on primary circuit area；Described upper pipe drives and protection circuit,
Down tube drives and protection circuit, NTC Acquisition Circuit, the first input/output port and the second input/output port are arranged on time side electricity
Road area.
6. the IGBT parallel drivers with NTC acquisition function according to claim 5 it is characterised in that：Described side electricity
Road area is divided into upper area under control, laydown area and acquisition zone by fluting；Described upper pipe drives and protection circuit is arranged on area under control；Institute
State down tube driving and protection circuit is arranged on laydown area；Described NTC Acquisition Circuit is arranged on acquisition zone.
7. the IGBT parallel drivers with NTC acquisition function according to claim 6 it is characterised in that：Described first is defeated
Entering output interface, the second input/output interface and the 3rd input/output interface is electric-connected socket.
8. the IGBT parallel drivers with NTC acquisition function according to any one of claim 1 to 7 it is characterised in that：Institute
The pulse input signal stating pulse processing circuit is differential pulse input signal.
9. the IGBT parallel drivers with NTC acquisition function according to any one of claim 1 to 7 it is characterised in that：Institute
State pulse processing circuit also to include pulse input signal is filtered and prevents with straight-through process.
10. the IGBT parallel drivers with NTC acquisition function according to any one of claim 1 to 7 it is characterised in that：
Described first signal isolation unit is light-coupled isolation unit or transformer isolation unit；Described secondary signal isolated location is optocoupler
Isolated location or transformer isolation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620939239.XU CN205961076U (en) | 2016-08-25 | 2016-08-25 | Take NTC to gather parallelly connected driver of IGBT of function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620939239.XU CN205961076U (en) | 2016-08-25 | 2016-08-25 | Take NTC to gather parallelly connected driver of IGBT of function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205961076U true CN205961076U (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620939239.XU Active CN205961076U (en) | 2016-08-25 | 2016-08-25 | Take NTC to gather parallelly connected driver of IGBT of function |
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| CN (1) | CN205961076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230409A (en) * | 2016-08-25 | 2016-12-14 | 中车株洲电力机车研究所有限公司 | A kind of IGBT parallel drivers of band NTC acquisition function |
-
2016
- 2016-08-25 CN CN201620939239.XU patent/CN205961076U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230409A (en) * | 2016-08-25 | 2016-12-14 | 中车株洲电力机车研究所有限公司 | A kind of IGBT parallel drivers of band NTC acquisition function |
| CN106230409B (en) * | 2016-08-25 | 2023-05-26 | 中车株洲电力机车研究所有限公司 | IGBT parallel driver with NTC acquisition function |
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