CN208401757U - A kind of driving circuit - Google Patents
A kind of driving circuit Download PDFInfo
- Publication number
- CN208401757U CN208401757U CN201821102621.0U CN201821102621U CN208401757U CN 208401757 U CN208401757 U CN 208401757U CN 201821102621 U CN201821102621 U CN 201821102621U CN 208401757 U CN208401757 U CN 208401757U
- Authority
- CN
- China
- Prior art keywords
- bridge arm
- driving unit
- arm driving
- lower bridge
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims description 99
- 238000012544 monitoring process Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 239000000306 component Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a kind of driving circuit, including drive module, the first power supply module and the second power supply module；Drive module includes bridge arm driving unit, the first lower bridge arm driving unit on first, bridge arm driving unit on second, the second lower bridge arm driving unit, bridge arm driving unit and third lower bridge arm driving unit in third；First power supply module is electrically connected with bridge arm driving unit in bridge arm driving unit on bridge arm driving unit on first, second and third, for for bridge arm driving unit power supply in bridge arm driving unit on bridge arm driving unit on first, second and third；Second power supply module is electrically connected with the first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit, for powering for the first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit.The problem of the utility model embodiment can slow down suddenly to avoid automobile caused by damaging components in power supply module improves security performance.
Description
Technical field
The utility model relates to field of circuit technology more particularly to a kind of driving circuits.
Background technique
In automotive field, IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) mould
Block is the core component of electrode drive part, and the drive mode of IGBT module directly affects the performance of automobile.
With the development of new-energy automobile, the drive mode of traditional IGBT module is challenged, when in driving circuit
When device random failure, it is all off that traditional IGBT drive circuit can control 6 road IGBT, and in the process of galloping
In, all IGBT are turned off suddenly can make motor generate very big braking torque, and automobile is caused to slow down suddenly, threaten personal safety.
Utility model content
The utility model provides a kind of driving circuit, causes automobile to slow down suddenly to avoid component failure, improves safety
Performance.
The utility model embodiment provides a kind of driving circuit, including drive module, the first power supply module and second supply
Electric module；
The drive module includes bridge arm driving unit, the first lower bridge arm driving unit on first, bridge arm driving on second
Unit, the second lower bridge arm driving unit, bridge arm driving unit and third lower bridge arm driving unit in third；
Bridge arm driving unit and the first lower bridge arm driving unit are for driving the insulated gate bipolar on described first
Transistor npn npn module exports the first phase voltage, and bridge arm driving unit and the second lower bridge arm driving unit are used on described second
The IGBT module is driven to export the second phase voltage, bridge arm driving unit and the third in the third
Lower bridge arm driving unit is for driving the IGBT module output third phase voltage；
Bridge arm driving unit on first power supply module and described first, bridge arm driving unit and described on described second
Bridge arm driving unit is electrically connected in third, is used to be bridge arm driving unit on described first, bridge arm driving unit on described second
It powers with bridge arm driving unit in the third；
Second power supply module and the first lower bridge arm driving unit, the second lower bridge arm driving unit and described
Third lower bridge arm driving unit electrical connection, for being the first lower bridge arm driving unit, the second lower bridge arm driving unit
It powers with the third lower bridge arm driving unit.
Optionally, first power supply module include the first power supply, first voltage converting unit, the first direct current transducer and
Second direct current transducer；
First power supply is electrically connected with first direct current transducer and second direct current transducer, and described first is straight
Stream transformer is electrically connected with the first voltage converting unit；
The first voltage converting unit include two DC output ends, respectively with described first on bridge arm driving unit,
On described second in bridge arm driving unit and the third bridge arm driving unit vice-side winding electrical connection, for generating the first electricity
It presses to the pair of bridge arm driving unit in bridge arm driving unit on bridge arm driving unit on described first, described second and the third
Side winding power；Wherein, the voltage of described two DC output end outputs is respectively turning-on voltage and shutdown voltage；
Second direct current transducer respectively with described first on bridge arm driving unit, bridge arm driving unit on described second
With the primary side winding electrical connection of bridge arm driving unit in the third, for generating second voltage respectively to bridge arm on described first
Driving unit, on described second in bridge arm driving unit and the third bridge arm driving unit primary side winding power supply.
Optionally, the first voltage converting unit includes push-pull transformer；
The push-pull transformer include six DC output ends, six DC output ends respectively with described first on
Bridge arm driving unit, on described second in bridge arm driving unit and the third bridge arm driving unit vice-side winding electrical connection.
Optionally, second power supply module includes bus power supply and second voltage converting unit；
The bus power supply is electrically connected with the second voltage converting unit；
The second voltage converting unit includes at least two DC output ends, is driven respectively with first lower bridge arm single
The vice-side winding of first, the described second lower bridge arm driving unit and third lower bridge arm driving unit electrical connection, for generating the
Three voltages give the first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving respectively
The vice-side winding of unit is powered；
The second voltage converting unit also with the first lower bridge arm driving unit, the second lower bridge arm driving unit
It is electrically connected with the primary side winding of the third lower bridge arm driving unit, gives first lower bridge arm respectively for generating the 4th voltage
The primary side winding of driving unit, the second lower bridge arm driving unit and the third lower bridge arm driving unit is powered.
Optionally, the second voltage converting unit includes flyback transformer；
The flyback transformer includes two DC output ends, and described two DC output ends descend bridge with described first
The vice-side winding of arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit is electrically connected.
Optionally, the second voltage converting unit further includes first control unit and transistor；
The flyback transformer includes primary side winding, the first vice-side winding, the second vice-side winding and third vice-side winding；
The source electrode electricity of the first end of the primary side winding and the bus power electric connection, second end and the transistor
Connection；The first end of first vice-side winding is electrically connected with the power input of the first control unit, second end with
First is electrically connected to ground；The both ends of second vice-side winding respectively with the first lower bridge arm driving unit, the second lower bridge arm
The electrical connection of the both ends of driving unit and third lower bridge arm driving unit vice-side winding；The first end of the third vice-side winding is distinguished
With one end of the first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit primary side winding
Electrical connection, second end are electrically connected to ground with second；
The output end of the first control unit is electrically connected with the grid of the transistor, the drain electrode of the transistor and institute
State the electrical connection of the first earth signal.
Optionally, the second voltage converting unit further includes protection location；
The protection location includes resistance, capacitor and diode；
The resistance and the capacitor are in parallel, and one end of the resistance is electrically connected with the first end of the primary side winding,
The other end is electrically connected with the cathode of the diode, and the anode of the diode is electrically connected with the second end of the primary side winding.
Optionally, the second voltage converting unit further includes voltage-stablizer；
The first end of the voltage-stablizer is electrically connected with the first end of the third vice-side winding, second end respectively with it is described
One end of first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit primary side winding is electrically connected
It connects.
Optionally, which further includes control module；
The output end of the control module respectively with described first on bridge arm driving unit, first lower bridge arm driving it is single
Bridge arm driving unit on first, described second, the second lower bridge arm driving unit, bridge arm driving unit and described in the third
Third lower bridge arm driving unit electrical connection, for generating bridge arm driving unit, described first in control signal control described first
Lower bridge arm driving unit, bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm drives in the third
The turn-on frequency of moving cell and the third lower bridge arm driving unit.
Optionally, which further includes safety control module；
The safety control module includes the second control unit, power supply supervision unit and torque monitoring unit；
The power supply supervision unit is electrically connected with second control unit, for monitor the driving circuit electric current and
Voltage；
The torque monitoring unit is electrically connected with second control unit, for monitoring the torque of motor；
Second control unit respectively with described first on bridge arm driving unit, the first lower bridge arm driving unit,
Bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm driving unit and described in the third
Three lower bridge arm driving units electrical connection, for generating in control signal control described first under bridge arm driving unit, described first
Bridge arm driving unit, bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm driving in the third
The on or off of unit and the third lower bridge arm driving unit.
The utility model embodiment passes through bridge arm driving unit on setting the first power supply module and first, bridge arm drives on second
Bridge arm driving unit is electrically connected on moving cell and third, is embodied as bridge arm driving unit on first, bridge arm driving unit on second
It powers with bridge arm driving unit in third；Second power supply module and the first lower bridge arm driving unit, the second lower bridge arm driving unit
It is electrically connected with third lower bridge arm driving unit, is embodied as the first lower bridge arm driving unit, the second lower bridge arm driving unit and third
The power supply of lower bridge arm driving unit, when the component failure in the device or the second power supply module in the first power supply module, only three
The upper bridge arm driving units shutdown of a lower bridge arm driving unit or three rather than it is all off, therefore drive IGBT module that can control
Motor processed slowly stops, and avoids automobile caused by the very big braking torque of motor generation and slows down suddenly, ensure that personal safety.
Detailed description of the invention
Fig. 1 is a kind of block diagram of driving circuit provided by the embodiment of the utility model；
Fig. 2 is the block diagram of another driving circuit provided by the embodiment of the utility model；
Fig. 3 is a kind of circuit block diagram of second voltage converting unit provided by the embodiment of the utility model；
Fig. 4 is the block diagram of another driving circuit provided by the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is a kind of block diagram of driving circuit provided by the embodiment of the utility model, and referring to Fig. 1, which includes
Drive module 110, the first power supply module 120 and the second power supply module 130；
Drive module 110 includes bridge arm driving unit 111 on first, bridge arm on the first lower bridge arm driving unit 112, second
Driving unit 113, the second lower bridge arm driving unit 114, bridge arm driving unit 115 and third lower bridge arm driving unit in third
116；Bridge arm driving unit 111 and the first lower bridge arm driving unit 112 are for driving insulated gate bipolar transistor mould on first
Block 001 (i.e. IGBT module 001) exports the first phase voltage, bridge arm driving unit 113 and the second lower bridge arm driving unit on second
114 for driving IGBT module 001 to export the second phase voltage, and bridge arm driving unit 115 and the driving of third lower bridge arm are single in third
Member 116 is for driving IGBT module 001 to export third phase voltage.
Wherein, drive module 110 is for driving IGBT module 001 to export three-phase alternating current, IGBT module 001 and motor
002 electrical connection, motor 002 convert electrical energy into kinetic energy under the action of three-phase alternating current.
On first power supply module 120 and first on bridge arm driving unit 111, second on bridge arm driving unit 113 and third
Bridge arm driving unit 115 is electrically connected, for for bridge arm driving unit 113 and third on bridge arm driving unit 111, second on first
Upper bridge arm driving unit 115 is powered；Second power supply module 130 and the first lower bridge arm driving unit 112, the second lower bridge arm driving list
Member 114 and third lower bridge arm driving unit 116 are electrically connected, for driving for the first lower bridge arm driving unit 112, the second lower bridge arm
Unit 114 and third lower bridge arm driving unit 116 are powered.
In the present embodiment, it is powered by the first power supply module 120 for three upper bridge arm driving unit (111,113 and 115),
Three lower bridge arm driving units (112,114 and 116) are powered by the second power supply module 130, when in the first power supply module 120
When component failure, only there are three upper bridge arm driving unit (111,113 and 115) to turn off, and three lower bridge arm driving units (112,
It 114 and 116) is still connected, therefore IGBT module 001 can be made by three lower bridge arm driving units (112,114 and 116)
Output voltage is the cathode voltage of DC power supply, and the voltage of the three-phase input end input of motor 002 is equal, and motor 002 enters
Short-circuit condition, motor 002 will slowly stop under short-circuit condition；When the component failure in the second power supply module 130, there are three
Lower bridge arm driving unit (112,114 and 116) shutdown, and three upper bridge arm driving unit (111,113 and 115) are still connected,
Therefore the output voltage of IGBT module 001 can be made to be direct current by three upper bridge arm driving unit (111,113 and 115)
The voltage of the cathode voltage in source, the three-phase input end input of motor 002 is equal, and motor 002 enters short-circuit condition, under short-circuit condition
Motor 002 will slowly stop.
I.e. when the component failure in the device or the second power supply module 130 in the first power supply module 120, only there are three under
The upper bridge arm driving units shutdown of bridge arm driving unit or three rather than it is all off, therefore drive IGBT module 001 that can control
Motor 002 processed slowly stops, and avoids automobile caused by the very big braking torque of motor generation and slows down suddenly, ensure that personal peace
Entirely.
Fig. 2 is the block diagram of another driving circuit provided by the embodiment of the utility model, referring to fig. 2, in above scheme
On the basis of, optionally, the first power supply module 120 includes the first power supply 121, first voltage converting unit 122, the conversion of the first direct current
Device 123 and the second direct current transducer 124.
First power supply 121 is electrically connected with the first direct current transducer 123 and the second direct current transducer 124, the conversion of the first direct current
Device 123 is electrically connected with first voltage converting unit 122.
Wherein, the first power supply 121 is chosen as battery group, the first direct current transducer 123 and the second direct current transducer 124 with
First power supply 121 connection, for the voltage of the first power supply 121 to be converted to another variable or fixed value DC voltage.
First voltage converting unit 122 includes two DC output ends, respectively with first on bridge arm driving unit 111, the
On two in bridge arm driving unit 113 and third bridge arm driving unit 115 vice-side winding electrical connection, for generate first voltage to
On first on bridge arm driving unit 111, second in bridge arm driving unit 113 and third bridge arm driving unit 115 vice-side winding
Power supply, wherein the voltage of described two DC output end outputs is respectively turning-on voltage and shutdown voltage.
Second direct current transducer 124 respectively with first on bridge arm driving unit 111, second bridge arm driving unit 113 and
The primary side winding electrical connection of bridge arm driving unit 115 in third, for generate second voltage driven respectively to bridge arm on first it is single
In member 111, second in bridge arm driving unit 113 and third bridge arm driving unit 115 primary side winding power supply.
In the present embodiment, optionally, the voltage of the first power supply 121 by the first direct current transducer 123 generate 15V or
30V voltage, then three upper bridge arm driving units are given respectively by the voltage that first voltage converting unit 122 generates 15V/-8V
The vice-side winding of (111,113 and 115) is powered；The voltage of first power supply 121 generates 5V voltage by the second direct current transducer 124
Respectively to the primary side winding power supply of three upper bridge arm driving unit (111,113 and 115).
Optionally, first voltage converting unit 122 includes push-pull transformer 1221；Push-pull transformer 1221 includes six
A DC output end, six DC output ends respectively with first on bridge arm driving unit 113 on bridge arm driving unit 111, second
With the vice-side winding electrical connection of bridge arm driving unit 115 in third.
In the present embodiment, the voltage of three upper bridge arm driving unit (111,113 and 115) vice-side windings can not share phase
Same output end, push-pull transformer 1221 can make the electricity of the generation of the first voltage converting unit 122 independent 15V/-8V in three tunnels
Pressure, respectively to the vice-side winding power supply of three upper bridge arm driving unit (111,113 and 115), setting in this way can letter
Change the complexity of 122 circuit of first voltage converting unit, save the cost.
Continuing with referring to fig. 2, optionally, the second power supply module 130 includes bus power supply 131 and second voltage converting unit
132, bus power supply 131 is electrically connected with second voltage converting unit 132.
Second voltage converting unit 132 include at least two DC output ends, respectively with the first lower bridge arm driving unit
112, the vice-side winding of the second lower bridge arm driving unit 114 and third lower bridge arm driving unit 116 is electrically connected, for generating third
Voltage gives the first lower bridge arm driving unit 112, the second lower bridge arm driving unit 114 and third lower bridge arm driving unit 116 respectively
Vice-side winding power supply.
Second voltage converting unit 132 also with the first lower bridge arm driving unit 112, the second lower bridge arm driving unit 114 and
The primary side winding of third lower bridge arm driving unit 116 is electrically connected, and gives the driving of the first lower bridge arm single respectively for generating the 4th voltage
The primary side winding power supply of first 112, second lower bridge arm driving unit 114 and third lower bridge arm driving unit 116.
In the present embodiment, optionally, the voltage of bus power supply 131 generates 15V/- by second voltage converting unit 132
The voltage of 8V gives the vice-side winding of three lower bridge arm driving units (112,114 and 116) to power respectively；The electricity of bus power supply 131
Pressure also generates 5V voltage by second voltage converting unit 132 and gives three lower bridge arm driving units (112,114 and 116) respectively
Primary side winding power supply.
It should be noted that the voltage of three lower bridge arm driving unit (112,114 and 116) vice-side windings can share it is identical
Output end can not also common output, i.e. second voltage converting unit 132 may include six DC output ends output three
The voltage of the independent 15V/-8V in road gives the vice-side winding of three lower bridge arm driving units (112,114 and 116) to power respectively,
It may include that two DC output ends export 15V/-8V voltage all the way while giving three lower bridge arm driving units (112,114 and
116) vice-side winding power supply.
Optionally, second voltage converting unit 132 includes flyback transformer 1321；Flyback transformer 1321 includes two
A DC output end, two DC output ends with the first lower bridge arm driving unit 112, the second lower bridge arm driving unit 114 and
The vice-side winding of third lower bridge arm driving unit 116 is electrically connected, and setting in this way can simplify second voltage converting unit
The complexity of 132 circuits, save the cost.
In Fig. 2, optionally, bus power supply 131 is the DC power supply of IGBT module 001.
Fig. 3 is that a kind of circuit block diagram of second voltage converting unit provided by the embodiment of the utility model can referring to Fig. 3
Choosing, it further includes first control unit 310 and transistor that second voltage converting unit 132, which includes flyback transformer 1321,
320；
Flyback transformer 1321 includes primary side winding T1, the first vice-side winding T2, the second vice-side winding T3 and third pair
Side winding T4.
Wherein, primary side winding T1 is main coil, for generating alternating current, the first vice-side winding T2, the second vice-side winding T3
It is isolated two-by-two between third vice-side winding T4, isolation pressure resistance is 2500V.
The first end of primary side winding T1 is electrically connected with bus power supply 131, and second end and the source electrode of transistor 320 are electrically connected
It connects；The first end of first vice-side winding T2 is electrically connected with the power input V of first control unit 310, second end and first
It is electrically connected to ground；The both ends of second vice-side winding T3 respectively with the first lower bridge arm driving unit 112, the second lower bridge arm driving unit
114 and 116 vice-side winding of third lower bridge arm driving unit both ends electrical connection；The first end of third vice-side winding T4 is respectively with
The one of 116 primary side winding of one lower bridge arm driving unit 112, the second lower bridge arm driving unit 114 and third lower bridge arm driving unit
End electrical connection, second end are electrically connected to ground with second；The output end Out of first control unit 310 and the grid of transistor 320
Electrical connection, the drain electrode of transistor 320 are electrically connected to ground with first.
Wherein, the output end Out output pwm signal of first control unit 310, it is brilliant for controlling the on-off of transistor 320
The size of the adjustable second vice-side winding T3 output voltage of the on-off of body pipe 320.
Primary side winding T1 generates alternating current, and the energy of primary side winding T1 is by magnetic field coupling to three vice-side windings, and first
Vice-side winding T2 rectification generates 6V voltage and powers to first control unit 310, and the second vice-side winding T3 generates 15V/-8V voltage and gives
The vice-side winding power supply of three lower bridge arm driving units (112,114 and 116), third vice-side winding T4 generate 5V voltage to three
The primary side winding of lower bridge arm driving unit (112,114 and 116) is powered.
In Fig. 3, optionally, the output end of the second vice-side winding T3 is connected with first resistor R1 and second resistance R2, the
The partial pressure output end of one resistance R1 and second resistance R2 is electrically connected with the feedback input end FB of first control unit 310, according to anti-
The voltage value for presenting input terminal FB input adjusts the on-off of transistor 320, to adjust the big of the second vice-side winding T3 output voltage
It is small.
Continuing with referring to Fig. 3, optionally, second voltage converting unit 132 further includes protection location 330；Protection location 330
Including resistance R3, capacitor C1 and diode D1；Resistance R3 and capacitor C1 are in parallel, one end of resistance R1 and the first of primary side winding T1
End electrical connection, the other end are electrically connected with the cathode of diode D1, the second end electricity of the anode and primary side winding T1 of diode D1
Connection.
Since there are leakage inductances for flyback transformer 1321, when transistor 320 turns off, transistor 320 will appear electricity
Pointing peak, protection location 330 can reduce the amplitude and the rate of climb of due to voltage spikes, and the amplitude of due to voltage spikes is controlled in crystal
In the maximum voltage range that pipe 320 can be born, transistor 320 is avoided to be damaged.
It should be noted that since supply voltage required precision of the drive module 110 to primary side winding is higher, it can
Choosing, second voltage converting unit 132 further includes voltage-stablizer 340, and voltage-stablizer 340 is chosen as low pressure difference linear voltage regulator.Pressure stabilizing
The first end of device 340 is electrically connected with the first end of third vice-side winding T4, second end respectively with the first lower bridge arm driving unit
112, one end electrical connection of 116 primary side winding of the second lower bridge arm driving unit 114 and third lower bridge arm driving unit.In this implementation
In example, third vice-side winding T4 first generates 6V voltage, and 6V voltage is then converted into high-precision 5V voltage by voltage-stablizer 340
Again to the primary side winding power supply of three lower bridge arm driving units (112,114 and 116), setting in this way can guarantee to drive
The power supply precision of unit primary side winding.
Fig. 4 is the block diagram of another driving circuit provided by the embodiment of the utility model, referring to fig. 4, in above scheme
On the basis of, optionally, which further includes control module 210.The output end of control module 210 respectively with first on bridge arm
Bridge arm driving unit 113, the second lower bridge arm driving unit on driving unit 111, the first lower bridge arm driving unit 112, second
114, bridge arm driving unit 115 and third lower bridge arm driving unit 116 are electrically connected in third, for generating control signal control the
Bridge arm driving unit 111 on one, bridge arm driving unit 113, the second lower bridge arm are driven on the first lower bridge arm driving unit 112, second
The turn-on frequency of bridge arm driving unit 115 and third lower bridge arm driving unit 116 on moving cell 114, third.
Wherein, the control signal of generation is PWM (Pulse Width Modulation, pulse width modulation) signal.
Optionally, which further includes safety control module 220, and safety control module 220 includes that the second control is single
Member 221, power supply supervision unit 222 and torque monitoring unit 223；Power supply supervision unit 222 is electrically connected with the second control unit 221
It connects, for monitoring the electric current and voltage of driving circuit；Torque monitoring unit 223 is electrically connected with the second control unit 221, for supervising
Control the torque of motor；Second control unit 221 respectively with first on bridge arm driving unit 111, the first lower bridge arm driving unit
112, bridge arm driving unit 113 on second, the second lower bridge arm driving unit 114, in third under bridge arm driving unit 115 and third
Bridge arm driving unit 116 is electrically connected, and is driven for generating bridge arm driving unit 111, the first lower bridge arm in control signal control first
Bridge arm driving unit 113 on moving cell 112, second, the second lower bridge arm driving unit 114,115 and of bridge arm driving unit in third
The on or off of third lower bridge arm driving unit 116.
Wherein, power supply supervision unit 222 is used to monitor the electric current and voltage of driving circuit, when monitoring to occur in circuit
When stream or over-voltage, the second control unit 221, which will generate control signal, makes three upper bridge arm driving unit (111,113 and 115)
Or the shutdown of three lower bridge arm driving units (112,114 and 116), to make motor enter short-circuit condition, under short-circuit condition
Motor can slowly stop, and avoid damage of the faults such as overcurrent or over-voltage to motor and circuit devcie.
Torque monitoring unit 223 is used to monitor the torque of motor, and when monitoring that Motor torque is abnormal, the second control is single
Member 221, which will generate control signal, makes three upper bridge arm driving unit (111,113 and 115) or three lower bridge arm driving units
(112,114 and 116) it turns off, so that motor be made to enter short-circuit condition, the motor under short-circuit condition can slowly stop, so as to phase
Pass personnel check motor, guarantee the safety of vehicle under steam.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of driving circuit, which is characterized in that including drive module, the first power supply module and the second power supply module；
The drive module include bridge arm driving unit, the first lower bridge arm driving unit on first, bridge arm driving unit on second,
Bridge arm driving unit and third lower bridge arm driving unit on second lower bridge arm driving unit, third；
Bridge arm driving unit and the first lower bridge arm driving unit are for driving insulated gate bipolar transistor on described first
Module exports the first phase voltage, and bridge arm driving unit and the second lower bridge arm driving unit are described for driving on described second
IGBT module exports the second phase voltage, and bridge arm driving unit and the third lower bridge arm are driven in the third
Moving cell is for driving the IGBT module output third phase voltage；
Bridge arm driving unit on first power supply module and described first, bridge arm driving unit and the third on described second
Upper bridge arm driving unit electrical connection, for for bridge arm driving unit and institute on bridge arm driving unit on described first, described second
Bridge arm driving unit in third is stated to power；
Second power supply module and the first lower bridge arm driving unit, the second lower bridge arm driving unit and the third
The electrical connection of lower bridge arm driving unit, is used for as the first lower bridge arm driving unit, the second lower bridge arm driving unit and institute
State the power supply of third lower bridge arm driving unit.
2. driving circuit according to claim 1, which is characterized in that first power supply module includes the first power supply, the
One voltage conversion unit, the first direct current transducer and the second direct current transducer；
First power supply is electrically connected with first direct current transducer and second direct current transducer, and first direct current turns
Parallel operation is electrically connected with the first voltage converting unit；
The first voltage converting unit includes two DC output ends, respectively with described first on bridge arm driving unit, described
On second in bridge arm driving unit and the third bridge arm driving unit vice-side winding electrical connection, for generate first voltage to
Bridge arm driving unit on described first, on described second in bridge arm driving unit and the third bridge arm driving unit secondary side around
Group power supply；Wherein, the voltage of described two DC output end outputs is respectively turning-on voltage and shutdown voltage；
Second direct current transducer respectively with described first on bridge arm driving unit, bridge arm driving unit and institute on described second
The primary side winding electrical connection for stating bridge arm driving unit in third, drives to bridge arm on described first respectively for generating second voltage
Unit, on described second in bridge arm driving unit and the third bridge arm driving unit primary side winding power supply.
3. driving circuit according to claim 2, which is characterized in that the first voltage converting unit includes that push-pull type becomes
Depressor；
The push-pull transformer include six DC output ends, six DC output ends respectively with described first on bridge arm
Driving unit, on described second in bridge arm driving unit and the third bridge arm driving unit vice-side winding electrical connection.
4. driving circuit according to claim 1, which is characterized in that second power supply module includes bus power supply and
Two voltage conversion units；
The bus power supply is electrically connected with the second voltage converting unit；
The second voltage converting unit include at least two DC output ends, respectively with the first lower bridge arm driving unit,
The vice-side winding of the second lower bridge arm driving unit and third lower bridge arm driving unit electrical connection, for generating third electricity
Pressure gives the first lower bridge arm driving unit, the second lower bridge arm driving unit and the third lower bridge arm driving unit respectively
Vice-side winding power supply；
The second voltage converting unit also with the first lower bridge arm driving unit, the second lower bridge arm driving unit and institute
The primary side winding electrical connection for stating third lower bridge arm driving unit gives first lower bridge arm to drive respectively for generating the 4th voltage
The primary side winding of unit, the second lower bridge arm driving unit and the third lower bridge arm driving unit is powered.
5. driving circuit according to claim 4, which is characterized in that the second voltage converting unit includes that inverse-excitation type becomes
Depressor；
The flyback transformer includes two DC output ends, and described two DC output ends drive with first lower bridge arm
The vice-side winding of moving cell, the second lower bridge arm driving unit and third lower bridge arm driving unit is electrically connected.
6. driving circuit according to claim 5, which is characterized in that the second voltage converting unit further includes the first control
Unit and transistor processed；
The flyback transformer includes primary side winding, the first vice-side winding, the second vice-side winding and third vice-side winding；
The first end of the primary side winding and the bus power electric connection, second end and the source electrode of the transistor are electrically connected
It connects；The first end of first vice-side winding is electrically connected with the power input of the first control unit, second end and the
One is electrically connected to ground；It is driven respectively with the first lower bridge arm driving unit, the second lower bridge arm at the both ends of second vice-side winding
The electrical connection of the both ends of moving cell and third lower bridge arm driving unit vice-side winding；The first end of the third vice-side winding respectively with
One end electricity of the first lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit primary side winding
Connection, second end are electrically connected to ground with second；
The output end of the first control unit is electrically connected with the grid of the transistor, the drain electrode of the transistor and described the
One is electrically connected to ground.
7. driving circuit according to claim 6, which is characterized in that the second voltage converting unit further includes that protection is single
Member；
The protection location includes resistance, capacitor and diode；
The resistance and the capacitor are in parallel, and one end of the resistance is electrically connected with the first end of the primary side winding, another
End is electrically connected with the cathode of the diode, and the anode of the diode is electrically connected with the second end of the primary side winding.
8. driving circuit according to claim 6, which is characterized in that the second voltage converting unit further includes pressure stabilizing
Device；
The first end of the voltage-stablizer is electrically connected with the first end of the third vice-side winding, and second end is respectively with described first
One end of lower bridge arm driving unit, the second lower bridge arm driving unit and third lower bridge arm driving unit primary side winding is electrically connected.
9. driving circuit according to claim 1, which is characterized in that further include control module；
The output end of the control module respectively with described first on bridge arm driving unit, the first lower bridge arm driving unit,
Bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm driving unit and described in the third
Three lower bridge arm driving units electrical connection, for generating in control signal control described first under bridge arm driving unit, described first
Bridge arm driving unit, bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm driving in the third
The turn-on frequency of unit and the third lower bridge arm driving unit.
10. driving circuit according to claim 1, which is characterized in that further include safety control module；
The safety control module includes the second control unit, power supply supervision unit and torque monitoring unit；
The power supply supervision unit is electrically connected with second control unit, for monitoring the electric current and electricity of the driving circuit
Pressure；
The torque monitoring unit is electrically connected with second control unit, for monitoring the torque of motor；
Second control unit respectively with described first on bridge arm driving unit, the first lower bridge arm driving unit, described
Bridge arm driving unit on second, the second lower bridge arm driving unit, in the third under bridge arm driving unit and the third
Bridge arm driving unit electrical connection, for generating bridge arm driving unit, first lower bridge arm in control signal control described first
Driving unit, bridge arm driving unit on described second, the second lower bridge arm driving unit, bridge arm driving unit in the third
With the on or off of the third lower bridge arm driving unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102621.0U CN208401757U (en) | 2018-07-12 | 2018-07-12 | A kind of driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821102621.0U CN208401757U (en) | 2018-07-12 | 2018-07-12 | A kind of driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208401757U true CN208401757U (en) | 2019-01-18 |
Family
ID=65131588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821102621.0U Active CN208401757U (en) | 2018-07-12 | 2018-07-12 | A kind of driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208401757U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135738A1 (en) * | 2019-12-31 | 2021-07-08 | 比亚迪股份有限公司 | Motor control system and motor control apparatus |
| CN113131440A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Motor control system and motor control device |
| CN113131439A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Motor control system and motor control device |
| CN114128119A (en) * | 2021-03-11 | 2022-03-01 | 华为数字能源技术有限公司 | Power supply topology, motor drive controller and vehicle |
| CN114312343A (en) * | 2021-01-14 | 2022-04-12 | 华为数字能源技术有限公司 | Motor control system and automobile |
-
2018
- 2018-07-12 CN CN201821102621.0U patent/CN208401757U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135738A1 (en) * | 2019-12-31 | 2021-07-08 | 比亚迪股份有限公司 | Motor control system and motor control apparatus |
| CN113131440A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Motor control system and motor control device |
| CN113131439A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Motor control system and motor control device |
| CN113131440B (en) * | 2019-12-31 | 2022-09-06 | 比亚迪股份有限公司 | Motor control system and motor control device |
| US11811350B2 (en) | 2019-12-31 | 2023-11-07 | Byd Company Limited | Motor control system and motor control apparatus |
| US12009654B2 (en) | 2019-12-31 | 2024-06-11 | Byd Company Limited | Motor control system and motor control device |
| CN114312343A (en) * | 2021-01-14 | 2022-04-12 | 华为数字能源技术有限公司 | Motor control system and automobile |
| US11813942B2 (en) | 2021-01-14 | 2023-11-14 | Huawei Digital Power Technologies Co., Ltd. | Motor control system and vehicle |
| CN114128119A (en) * | 2021-03-11 | 2022-03-01 | 华为数字能源技术有限公司 | Power supply topology, motor drive controller and vehicle |
| WO2022188098A1 (en) * | 2021-03-11 | 2022-09-15 | 华为数字能源技术有限公司 | Power supply topology, motor drive controller, and vehicle |
| CN114128119B (en) * | 2021-03-11 | 2023-08-22 | 华为数字能源技术有限公司 | Power supply topology, motor drive controller and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208401757U (en) | A kind of driving circuit | |
| US20110103117A1 (en) | Grid interconnection inverter and grid interconnection device | |
| US20130242617A1 (en) | H-bridge micro inverter grid-connected device | |
| CN204947890U (en) | Gate drive power system | |
| CN105009436A (en) | Switching power supply apparatus | |
| US20140347767A1 (en) | Power converter with switching element | |
| CN104980028A (en) | Power Converters | |
| CN105517650A (en) | Fly-back dc/ac conversion circuit with plurality of windings | |
| CN105871218A (en) | IGBT driving method and device with push-pull type isolation power supply | |
| CN201440636U (en) | Limiting circuit with largest conduction duty ratio for power switch tube of switch power supply | |
| CN103281002A (en) | Solid switch type high-voltage pulse power supply based on insulated gate bipolar transistor (IGBT) series connection | |
| MX2011004632A (en) | Low voltage power supply. | |
| CN103001313B (en) | Off-line uninterrupted power system | |
| JP3478338B2 (en) | Power transmission equipment | |
| CN215949169U (en) | Electromagnetic lock driving device adopting forward transformation principle | |
| CN203691365U (en) | Self-powered circuit of power semiconductor switch driving circuit | |
| CN101212182B (en) | Power circuit | |
| CN103618530B (en) | The self-powered circuit of power semiconductor switch drive circuit and method | |
| CN107390139B (en) | Portable grid-connected converter testing device | |
| CN103248212B (en) | Output voltage turning-off control method and circuit of vehicle-mounted sine wave inverter | |
| CN109600058A (en) | A kind of novel auxiliary electric power supply topological structure | |
| CN107612368A (en) | Failure safe power supply | |
| CN105490548A (en) | Switching power device | |
| CN201122906Y (en) | Synchronous commutation control circuit | |
| CN114961434A (en) | Electromagnetic lock driving circuit adopting forward transformation principle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A driving circuit Effective date of registration: 20210126 Granted publication date: 20190118 Pledgee: Bank of Shanghai Limited by Share Ltd. Pudong branch Pledgor: SHANGHAI YINGHENG ELECTRONIC Co.,Ltd. Registration number: Y2021310000004 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231010 Granted publication date: 20190118 Pledgee: Bank of Shanghai Limited by Share Ltd. Pudong branch Pledgor: SHANGHAI YINGHENG ELECTRONIC Co.,Ltd. Registration number: Y2021310000004 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |