CN105896955A - Driving device of power switch tube - Google Patents
Driving device of power switch tube Download PDFInfo
- Publication number
- CN105896955A CN105896955A CN201610234897.3A CN201610234897A CN105896955A CN 105896955 A CN105896955 A CN 105896955A CN 201610234897 A CN201610234897 A CN 201610234897A CN 105896955 A CN105896955 A CN 105896955A
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- China
- Prior art keywords
- power switch
- resistance
- module
- driving
- switch pipe
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention discloses a driving device of a power switch tube. The driving device comprises a signal providing module used for providing driving signals and a driving module provided with a negative voltage unit. The driving module is used to output the positive voltage to the gate pole of the power switch tube when receiving the turning-on driving signal, and then the power switch tube is driven to be turned on, and the driving module is used to output the negative voltage to the gate pole of the power switch tube by the negative voltage unit when receiving the turning-off driving signal, and then the power switch tube is driven to be turned off. The negative voltage unit is used to establish the negative voltage in the preset time period after the turning on of the driving device, and comprises a first capacitor, a second capacitor, a first resistor, and a first voltage-regulator tube. One end of the first capacitor is connected with one end of the first resistor, and one end of the second capacitor is connected with the other end of the first resistor, and the other end of the second capacitor is grounded. An anode of a first voltage-regulator tube is connected with the other end of the first capacitor, and the cathode of the first voltage-regulator tube is connected with one end of the first capacitor, and then is grounded. The through accident of the power switch tubes of the upper bridge arm and the lower bridge arm can be prevented.
Description
Technical field
The present invention relates to electric and electronic technical field, particularly to the driving means of a kind of power switch pipe.
Background technology
In the circuit synchronization rectification such as bridge circuit or Buck, Boost is applied, upper (lower) switching tube is opened shutoff and can be made
Node voltage produces bigger voltage change ratio, and then make down (on) voltage between gate pole and the source electrode of switching tube has bright
Aobvious spike.
The threshold voltage of ordinary high pressure MOSFET is higher, about 3～5V, and parasitic capacitance is bigger, switching speed ratio
Relatively slow, the problems referred to above also do not cause enough attention.But, in the related, the threshold voltage of low pressure MOSFET subtracts
Little to about 2V, and the parasitic capacitance of low pressure MOSFET is little, and switching speed is fast, and voltage change ratio is bigger, at switch
The due to voltage spikes caused between gate pole and the source electrode of pipe easily reaches its threshold voltage, thus causes upper and lower bridge arm
MOSFET leads directly to.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the one of the present invention
Purpose is to propose the driving means of a kind of power switch pipe, and it is straight-through that this device can prevent the power switch pipe of upper and lower bridge arm from occurring
Accident, improves reliability.
For reaching above-mentioned purpose, the present invention proposes the driving means of a kind of power switch pipe, including: signal provides module,
Described signal provides module to be used for providing driving signal, and wherein, described driving signal includes opening driving signal and turning off driving
Signal；
Driving module, the first input end of described driving module provides the first outfan of module to be connected with described signal, described
The second input and the described signal driving module provides the second outfan of module to be connected, the outfan of described driving module and
The gate pole of described power switch pipe is connected, and described driving module has negative pressure unit, and described driving module is for receiving
State to open and export positive voltage when driving signal to the gate pole of described power switch pipe to drive described power switch pipe open-minded, and
Described driving module for passing through described negative pressure unit output negative voltage to described power when receiving described shutoff and driving signal
The gate pole of switching tube is to drive the shutoff of described power switch pipe；Wherein, described negative pressure unit is for starting in described driving means
After Preset Time in set up negative voltage, described negative pressure unit includes that the first electric capacity, the second electric capacity, the first resistance and first are steady
Pressure pipe, one end of described first electric capacity is connected with one end of described first resistance, one end of described second electric capacity and described first
The other end of resistance is connected, the other end ground connection of described second electric capacity, the anode of described first stabilivolt and described first electric capacity
The other end be connected, the negative electrode of described first stabilivolt is connected with one end of described first electric capacity, the moon of described first stabilivolt
Pole also ground connection.
According to the driving means of the power switch pipe that the present embodiment proposes, i.e. can open for the first time in the machine that the opens stage of driving means
The Central Shanxi Plain, when power switch pipe just can be made to turn off, between gate pole and the source electrode of power switch pipe, voltage is negative value, prevents upper and lower bridge
There is straight-through accident in the power switch pipe of arm, improves reliability.
According to one embodiment of present invention, described Preset Time and described first electric capacity and the capacitance phase of described second electric capacity
Close, and the capacitance of described first electric capacity is more than the capacitance of described second electric capacity.
According to one embodiment of present invention, described driving module includes: the second resistance, one end of described second resistance and institute
Stating signal provides the first outfan of module to be connected；First diode, the anode of described first diode provides with described signal
First outfan of module is connected；Controlled tr tube, the first end of described controlled tr tube respectively with described first diode
Negative electrode is connected with the other end of described second resistance, the other end phase of the second end of described controlled tr tube and described first electric capacity
Even, the end that controls of described controlled tr tube provides the second outfan of module to be connected with described signal；Second diode, described
The anode of the second diode is connected with the first end of described controlled tr tube, the negative electrode of described second diode and described second electricity
The one end held is connected；3rd diode, the described anode of the 3rd diode is connected with the second end of described controlled tr tube, institute
The control end of the negative electrode and described controlled tr tube of stating the 3rd diode is connected.
Further, described driving module also includes: the 3rd resistance, one end of described 3rd resistance and described controlled tr tube
The first end be connected, the described other end of the 3rd resistance is connected with the control end of controlled tr tube.
Further, described driving module also includes: the 4th resistance, and one end of described 4th resistance is respectively with the described 2nd 2
The anode of pole pipe is connected with the first end of described controlled tr tube, and the other end of described 4th resistance is another with described second electric capacity
One end is connected, the other end also ground connection of described 4th resistance.
Further, described driving module also includes: the 5th resistance, one end of described 5th resistance and described 4th resistance
One end is connected, and the described other end of the 5th resistance is connected with the gate pole of described power switch pipe.
Further, described driving module also includes: the second stabilivolt, the negative electrode of described second stabilivolt and described 4th electricity
One end of resistance is connected；3rd stabilivolt, the anode of described 3rd stabilivolt is connected with the anode of described second stabilivolt, described
The negative electrode of the 3rd stabilivolt is connected with the other end of described 4th resistance.
According to one embodiment of present invention, when described driving module is two, described signal provides module to carry for correspondence
Driving signal for two-way, wherein, described signal provides module to include: transformator, and described transformator is defeated for controlling device
The control signal gone out is transformed to described driving signal, and described transformator has primary coil, the first secondary coil and second subprime
Coil, the Same Name of Ends of described primary coil is connected with the first outfan of described control device, the different name end of described primary coil
It is connected with the second outfan of described control device, the Same Name of Ends of described first secondary coil and the first of first driving module
Input is connected, and the different name end of described first secondary coil is connected with described first the second input driving module, described
The Same Name of Ends of second subprime coil and second the second input driving module are connected, the different name end of described second subprime coil
It is connected with described second first input end driving module.
According to one embodiment of present invention, described power switch pipe can be silicon carbide MOSFET or gallium nitride MOSFET.
Accompanying drawing explanation
Fig. 1 is the block diagram of the driving means of power switch pipe according to embodiments of the present invention；
Fig. 2 is the circuit theory diagrams of the driving means of power switch pipe according to an embodiment of the invention；
Fig. 3 is the circuit theory diagrams of the driving means of power switch pipe in accordance with another embodiment of the present invention；
Fig. 4 is the waveform diagram of the three tunnels driving signals of full-bridge LLC according to an embodiment of the invention；
Fig. 5 is the expanded view of Fig. 4；
Fig. 6 is the waveform diagram of the three tunnels driving signals of the full-bridge LLC in correlation technique；And
Fig. 7 is the expanded view of Fig. 6.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
First simply introduce the driving means of power switch pipe in correlation technique below.
In order to solve upper and lower bridge arm MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor,
Metal semiconductor field effect transis) straight-through problem, correlation technique proposes a kind of scheme adding negative pressure on driver circuit,
I.e. when MOSFET turns off, output drives negative pressure value.The waveform diagram of the driving voltage of correlation technique as shown in Figures 6 and 7,
From the oscillogram shown in Fig. 6 and Fig. 7 it can be seen that correlation technique there is problems in that startup stage, need to through about 400uS,
When just making MOSFET close, between gate pole and the source electrode of MOS FET, voltage is a certain fixing negative value, it follows that opening
Still there is the hidden danger that MOS FET is straight-through in the dynamic stage.
Based on this, the present invention proposes the driving means of a kind of new power switch pipe, this driving means be applicable to phase-shifting full-bridge,
The bridge circuit topologys such as LLC half (entirely) bridge controlled resonant converter, and, driving means can be used for driving inapplicable common symmetric
The power switch pipe that positive/negative-pressure drives.
Fig. 1 is the block diagram of the driving means of power switch pipe according to embodiments of the present invention.As it is shown in figure 1, power
The driving means of switching tube includes: signal provides module 10 and drives module 20.According to one embodiment of present invention, merit
Rate switching tube can be the MOSFET of the low threshold voltage such as silicon carbide MOSFET or gallium nitride MOSFET.
Wherein, signal provides module 10 to be used for providing driving signal, drives signal to include opening driving signal and shutoff drives letter
Number；The first input end driving module 20 provides the first outfan of module 10 to be connected with signal, drives the second of module 20
Input provides the second outfan of module 10 to be connected with signal, drives the outfan of module 20 and the door of power switch pipe 30
The most connected, drive module 20 for according to driving signal to drive power switch pipe 30 to be switched on or off.
Drive module 20 to have negative pressure unit 21, drive module 20 for exporting positive voltage when receiving and opening driving signal
To the gate pole of power switch pipe 30 to drive power switch pipe 30 open-minded, and drive module 20 for driving receiving shutoff
Negative voltage is exported to the gate pole of power switch pipe 30 to drive power switch pipe 30 to turn off by negative pressure unit 21 during dynamic signal.
I.e. say, drive module 20 power switch pipe 30 can be driven open-minded by positive voltage, and by negative voltage driving power switch pipe
30 turn off.
Wherein, negative pressure unit 21 sets up negative voltage in the Preset Time after starting in driving means, and negative pressure unit 21 wraps
Include the first electric capacity C1, the second electric capacity C2, the first resistance R1 and the first stabilivolt ZD1, one end of the first electric capacity C1 and the
One end of one resistance R1 is connected, and one end of the second electric capacity C2 is connected with the other end of the first resistance R1, the second electric capacity C2
Other end ground connection, the anode of the first stabilivolt ZD1 and the other end of the first electric capacity C1 be connected, the first stabilivolt ZD1's
One end of negative electrode and the first electric capacity C1 is connected, the negative electrode also ground connection of the first stabilivolt ZD1.
Wherein, according to one embodiment of present invention, Preset Time and the first electric capacity C1 and the capacitance phase of the second electric capacity C2
Close, and the capacitance that the capacitance of the first electric capacity C1 is more than the second electric capacity C2.Specifically, Preset Time can be power switch
One switch periods of pipe 30.
Specifically, as it is shown in figure 1, a second electric capacity C2 in parallel at the two ends of the first resistance R1, lead in driving means
The moment of electricity, owing to the voltage at the second electric capacity C2 two ends is 0, therefore the voltage on the first electric capacity C1 can quickly be set up, logical
Cross capacitance and the capacitance of the second electric capacity C2 suitably choosing the first electric capacity C1, negative pressure unit 21 can be made to open at one
Negative pressure is set up in the cycle in pass.Thus, can startup stage i.e. in for the first time switch, export negative electricity and be depressed into power switch pipe 30
Gate pole, so that voltage is a certain fixing negative value between the gate pole of power switch pipe 30 and source electrode so that power switch pipe 30 closes
Disconnected, thus prevent the power switch pipe of upper and lower bridge arm in bridge circuit from straight-through accident occurring,
Thus, the driving means of power switch pipe proposed according to the present embodiment, can be in the machine that the opens stage of driving means i.e. the
Once in switch, when power switch pipe just can be made to turn off, between gate pole and the source electrode of power switch pipe, voltage is negative value, prevents
There is straight-through accident in the power switch pipe of upper and lower bridge arm, improves reliability.
The circuit structure of the driving means of the power switch pipe of the embodiment of the present invention is described below in conjunction with Fig. 2.
According to one embodiment of present invention, as in figure 2 it is shown, drive module 20 to include: the second resistance R2, the one or two pole
Pipe D1, controlled tr tube Q1, the second diode D2, the 3rd diode D3.
Wherein, one end of the second resistance R2 provides the first outfan of module 10 to be connected with signal；First diode D1's
Anode provides the first outfan of module 10 to be connected with signal, the anode of the i.e. first diode D1 and the one of the second resistance R2
End is connected using as the first input end driving module 20；First end of controlled tr tube Q1 i.e. drain respectively with the one or two pole
The negative electrode of pipe D1 and the other end of the second resistance R2 are connected, the second end i.e. source electrode of controlled tr tube Q1 and the first electric capacity C1
The other end be connected, control end i.e. gate pole and the signal of controlled tr tube Q1 provide the second outfan of module 20 to be connected, i.e.
Speech controlled tr tube Q1 controls end as the second input driving module 20；The anode of the second diode D2 is with controlled
First end of switching tube Q1 is connected, and the negative electrode of the second diode D2 and one end of the second electric capacity C2 are connected；3rd diode
The anode of D3 is connected with second end of controlled tr tube Q1, the negative electrode of the 3rd diode D3 and the control of controlled tr tube Q1
End is connected.
Further, module 20 is driven also to include: the 3rd resistance R3, one end of the 3rd resistance R3 and controlled tr tube Q1
The first end be connected, the other end of the 3rd resistance R3 is connected with the control end of controlled tr tube Q1.
Further, drive module 20 also include: the 4th resistance R4, one end of the 4th resistance R4 respectively with the second diode
The anode of D2 is connected with first end of controlled tr tube Q1, the other end of the 4th resistance R4 and the other end of the second electric capacity C2
It is connected, the other end also ground connection of the 4th resistance R4.
Further, driving module 20 also to include: the 5th resistance R5, one end of the 5th resistance R5 is with the 4th resistance R4's
One end is connected, and the other end of the 5th resistance R5 is connected with the gate pole of power switch pipe 30 as the outfan driving module 20,
Wherein, the source ground of power switch pipe 30.
Further, module 20 is driven also to include: the second stabilivolt ZD2 and the 3rd stabilivolt ZD3, the second stabilivolt ZD2
Negative electrode and the 4th resistance R4 one end be connected；The anode of the 3rd stabilivolt ZD3 and the anode of the second stabilivolt ZD2 are connected,
The negative electrode of the 3rd stabilivolt ZD3 and the other end of the 4th resistance R4 are connected.
In an example of the present invention, controlled tr tube Q1 is MOSFET pipe.
Specifically, when signal provides module 10 output to open driving signal, the first input end driving module 20 is just
Voltage, the second input driving module 20 is negative voltage, and controlled tr tube Q1 turns off, and drives the outfan of module 20
Output positive voltage to power switch pipe 30 with drive power switch pipe 30 open-minded, drive the first input end of module 20, first
Diode D1, the second diode D2, the first electric capacity C1, the second electric capacity C2, the 3rd diode D3 and driving module 20
Second input formed one be the first electric capacity C1 and the second electric capacity C2 charging current loop, driving means be energized wink
Between, owing to the voltage of the second electric capacity C2 is 0, therefore, the voltage on the first electric capacity C1 can quickly be set up.Wherein, logical
Cross the capacitance of capacitance and the C3 suitably choosing C1, driving means can be made to open of a power switch pipe 30
Negative pressure is set up in the cycle in pass, and wherein, C1 is more than C3.
When signal provides module 10 output to turn off driving signal, the first input end driving module 20 is negative voltage, drives
Second input of module 20 is positive voltage, and controlled tr tube Q1 is open-minded, drives the outfan of module 20 at the first electric capacity
The lower output negative voltage of common effect of C1 and the first stabilivolt ZD1 is to power switch pipe 30, to drive power switch pipe 30 to close
Disconnected, wherein, the first stabilivolt ZD1 determines the voltage magnitude on the first electric capacity C1, i.e. needs the electricity of the negative voltage of output
Pressure value.
It addition, according to one embodiment of present invention, as a example by a pair upper and lower bridge arm in bridge circuit, when driving module 20
When being two, signal provides module 20 to provide two-way to drive signal for correspondence, and wherein, signal provides module 10 to include:
Transformator T1, transformator T1 are for being transformed to drive signal, at the beginning of transformator T1 has by the control signal controlling device output
Level coil T1-A, the first secondary coil T1-B and second subprime coil T1-C, the Same Name of Ends of primary coil T1-A and control
First outfan of device is connected, and the different name end of primary coil T1-A is connected with the second outfan controlling device, first level
The Same Name of Ends of coil T1-B and first first input end driving module 20-A are connected, and the first secondary coil T1-B's is different
Name end and first the second input driving module 20-A are connected, and the Same Name of Ends of second subprime coil T1-C and second drive
Second input of dynamic model block 20-B is connected, the different name end of second subprime coil T1-C and the of second driving module 20-B
One input is connected.
It should be understood that control device for controlling the driving means of power switch pipe, to drive power by driving means
Being switched on or off of switching tube.
Specifically, when the voltage of the Same Name of Ends of primary coil T1-A is timing, the first secondary coil T1-B and second subprime
The voltage of the Same Name of Ends of coil T1-C is just the most also, now controlled tr tube Q1 turns off, and drives the output of module 20
End output positive voltage is open-minded with driving power switch pipe 30 to power switch pipe 30, and, the first secondary coil T1-B's is same
Name end, the first diode D1, the second diode D2, the first electric capacity C1, the second electric capacity C2, the 3rd diode D3 and and
It is the first electric capacity C1 and the current loop of the second electric capacity C2 charging that the different name end of the first secondary coil T1-B forms one,
Driving means energising moment, owing to the voltage of the second electric capacity C2 is 0, therefore, the voltage on the first electric capacity C1 can be quickly
Set up.
When the voltage of the Same Name of Ends of primary coil T1-A is negative, the first secondary coil T1-B and second subprime coil T1-C
The voltage of Same Name of Ends be the most also negative, the voltage of the different name end of the first secondary coil T1-B and second subprime coil T1-C
The most also being that just now controlled tr tube Q1 is open-minded, the outfan driving module 20 is steady at the first electric capacity C1 and first
The lower output negative voltage of common effect of pressure pipe ZD1 is to power switch pipe 30, to drive power switch pipe 30 to turn off.
In one embodiment of the invention, above-mentioned driving means is applied on full-bridge LLC, Fig. 5 and Fig. 6 be
In the case of 650VDC, 8KW/360Vo, three tunnels of full-bridge LLC drive the waveform diagram of signal.From the ripple of Fig. 5 and Fig. 6
In shape figure it can be seen that startup stage after i.e. power switch pipe 30 is closed for the first time, the gate pole of power switch pipe 30 and source
Between pole, voltage is negative voltage, it was demonstrated that the applicability of this driving means.
As the above analysis, the driving means of the power switch pipe of the embodiment of the present invention, startup stage i.e. at power switch
In pipe switch for the first time, when power switch pipe just can be made to close, between gate pole and the source electrode of power switch pipe, voltage is negative value,
There is straight-through accident in the power switch pipe preventing upper and lower bridge arm, improves reliability.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of describe the present invention and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or hidden
At least one this feature is included containing ground.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", the art such as " fixing "
Language should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part or the interaction relationship of two elements, unless otherwise clear and definite restriction.Ordinary skill for this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
First and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below "
Can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second
Feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (9)
1. the driving means of a power switch pipe, it is characterised in that including:
Signal provides module, and described signal provides module to be used for providing driving signal, and wherein, described driving signal includes open-minded
Drive signal and turn off driving signal；
Driving module, the first input end of described driving module provides the first outfan of module to be connected with described signal, described
The second input and the described signal driving module provides the second outfan of module to be connected, the outfan of described driving module and
The gate pole of described power switch pipe is connected, and described driving module has negative pressure unit, and described driving module is for receiving
State to open and export positive voltage when driving signal to the gate pole of described power switch pipe to drive described power switch pipe open-minded, and
Described driving module for passing through described negative pressure unit output negative voltage to described power when receiving described shutoff and driving signal
The gate pole of switching tube is to drive the shutoff of described power switch pipe；
Wherein, negative voltage, described negative pressure are set up in described negative pressure unit Preset Time after starting in described driving means
Unit includes the first electric capacity, the second electric capacity, the first resistance and the first stabilivolt, one end of described first electric capacity and described first
One end of resistance is connected, and one end of described second electric capacity is connected with the other end of described first resistance, described second electric capacity another
One end ground connection, the anode of described first stabilivolt is connected with the other end of described first electric capacity, the negative electrode of described first stabilivolt
It is connected with one end of described first electric capacity, the negative electrode also ground connection of described first stabilivolt.
The driving means of power switch pipe the most according to claim 1, it is characterised in that wherein, described Preset Time
Relevant to the capacitance of described first electric capacity and described second electric capacity, and the capacitance of described first electric capacity is more than described second electricity
The capacitance held.
The driving means of power switch pipe the most according to claim 1, it is characterised in that described driving module includes:
Second resistance, one end of described second resistance provides the first outfan of module to be connected with described signal；
First diode, the anode of described first diode provides the first outfan of module to be connected with described signal；
Controlled tr tube, the first end of described controlled tr tube respectively with the negative electrode of described first diode and described second resistance
The other end be connected, the second end of described controlled tr tube is connected with the other end of described first electric capacity, described controlled tr tube
Control end and described signal provide the second outfan of module to be connected；
Second diode, the anode of described second diode is connected with the first end of described controlled tr tube, described two or two pole
The negative electrode of pipe is connected with one end of described second electric capacity；
3rd diode, the described anode of the 3rd diode is connected with the second end of described controlled tr tube, described three or two pole
The negative electrode of pipe is connected with the control end of described controlled tr tube.
The driving means of power switch pipe the most according to claim 3, it is characterised in that described driving module also includes:
3rd resistance, described one end of 3rd resistance is connected with the first end of described controlled tr tube, described 3rd resistance another
One end is connected with the control end of controlled tr tube.
The driving means of power switch pipe the most according to claim 4, it is characterised in that described driving module also includes:
4th resistance, one end of described 4th resistance respectively with the anode and the of described controlled tr tube of described second diode
One end is connected, and the other end of described 4th resistance is connected with the other end of described second electric capacity, the other end of described 4th resistance
Also ground connection.
The driving means of power switch pipe the most according to claim 5, it is characterised in that described driving module also includes:
5th resistance, one end of described 5th resistance is connected with one end of described 4th resistance, the other end of described 5th resistance
It is connected with the gate pole of described power switch pipe.
The driving means of power switch pipe the most according to claim 6, it is characterised in that described driving module also includes:
Second stabilivolt, the negative electrode of described second stabilivolt is connected with one end of described 4th resistance；
3rd stabilivolt, the anode of described 3rd stabilivolt is connected with the anode of described second stabilivolt, described 3rd stabilivolt
Negative electrode be connected with the other end of described 4th resistance.
8. according to the driving means of the power switch pipe according to any one of claim 1-7, it is characterised in that drive when described
When dynamic model block is two, described signal provides module to provide two-way to drive signal for correspondence, and wherein, described signal provides mould
Block includes:
Transformator, described transformator is for being transformed to described driving signal, described transformation by the control signal controlling device output
Utensil has primary coil, the first secondary coil and second subprime coil, the Same Name of Ends of described primary coil and described control device
The first outfan be connected, the different name end of described primary coil is connected with the second outfan of described control device, described first
The Same Name of Ends of secondary coil and first first input end driving module are connected, the different name end of described first secondary coil and institute
State first the second input driving module to be connected, the Same Name of Ends of described second subprime coil and the of second driving module
Two inputs are connected, and the different name end of described second subprime coil is connected with described second first input end driving module.
The driving means of power switch pipe the most according to claim 1, it is characterised in that described power switch pipe is carbon
SiClx MOSFET or gallium nitride MOSFET.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610234897.3A CN105896955B (en) | 2016-04-15 | 2016-04-15 | The driving device of power switch tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610234897.3A CN105896955B (en) | 2016-04-15 | 2016-04-15 | The driving device of power switch tube |
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| CN105896955A true CN105896955A (en) | 2016-08-24 |
| CN105896955B CN105896955B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610234897.3A Active CN105896955B (en) | 2016-04-15 | 2016-04-15 | The driving device of power switch tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579649A (en) * | 2017-09-13 | 2018-01-12 | 深圳市鹏源电子有限公司 | Drive device for power switch pipe |
| CN108233684A (en) * | 2018-01-22 | 2018-06-29 | 深圳青铜剑科技股份有限公司 | The grid clutter reduction circuit and driving circuit of a kind of SiC MOSFET |
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| US5079608A (en) * | 1990-11-06 | 1992-01-07 | Harris Corporation | Power MOSFET transistor circuit with active clamp |
| CN201018405Y (en) * | 2007-03-09 | 2008-02-06 | 珠海泰坦科技股份有限公司 | Whole bridge phase-shift drive circuit |
| CN101771335A (en) * | 2010-01-20 | 2010-07-07 | 北京新雷能科技股份有限公司 | Isolated drive circuit of DC converter |
| CN103532356A (en) * | 2013-10-25 | 2014-01-22 | 山东大学 | Bootstrap-supply MOSFET (metal oxide semiconductor field effect transistor)/IGBT (insulated gate bipolar translator) driver circuit having negative voltage |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079608A (en) * | 1990-11-06 | 1992-01-07 | Harris Corporation | Power MOSFET transistor circuit with active clamp |
| CN201018405Y (en) * | 2007-03-09 | 2008-02-06 | 珠海泰坦科技股份有限公司 | Whole bridge phase-shift drive circuit |
| CN101771335A (en) * | 2010-01-20 | 2010-07-07 | 北京新雷能科技股份有限公司 | Isolated drive circuit of DC converter |
| CN103532356A (en) * | 2013-10-25 | 2014-01-22 | 山东大学 | Bootstrap-supply MOSFET (metal oxide semiconductor field effect transistor)/IGBT (insulated gate bipolar translator) driver circuit having negative voltage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579649A (en) * | 2017-09-13 | 2018-01-12 | 深圳市鹏源电子有限公司 | Drive device for power switch pipe |
| CN108233684A (en) * | 2018-01-22 | 2018-06-29 | 深圳青铜剑科技股份有限公司 | The grid clutter reduction circuit and driving circuit of a kind of SiC MOSFET |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105896955B (en) | 2019-02-05 |
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