CN208316603U

CN208316603U - Driver IC circuits, intelligent power module and the air conditioner of intelligent power module

Info

Publication number: CN208316603U
Application number: CN201820918200.9U
Authority: CN
Inventors: 李叶生; 冯宇翔
Original assignee: Midea Group Co Ltd; Chongqing Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Chongqing Midea Refrigeration Equipment Co Ltd
Priority date: 2018-06-13
Filing date: 2018-06-13
Publication date: 2019-01-01
Anticipated expiration: 2028-06-13

Abstract

The utility model discloses a kind of driver IC circuits of intelligent power module, intelligent power module and air conditioner, driver IC circuits include driving voltage input terminal, first motor driving circuit, the second motor-drive circuit, PFC driving circuit and booster circuit；The work of the driving of first motor driving circuit and upper bridge arm switching tube and lower bridge arm switching tube corresponding to external first motor；The work of the driving of second motor-drive circuit and upper bridge arm switching tube and lower bridge arm switching tube corresponding to external second motor；PFC driving circuit drives the work of external PFC switching tube；Driving voltage input terminal provides driving input voltage for first motor driving circuit and provides input voltage for booster circuit；Booster circuit boosts to the voltage of input, provides driving input voltage for the second motor-drive circuit and PFC driving circuit.The utility model improves the integrated level of intelligent power module, and can drive Si base device for power switching and SiC base device for power switching simultaneously.

Description

Driver IC circuits, intelligent power module and the air conditioner of intelligent power module

Technical field

The utility model relates to intelligent power module field more particularly to a kind of driver IC circuits of intelligent power module, Intelligent power module and air conditioner.

Background technique

Intelligent power module, i.e. IPM (Intelligent Power Module) are a kind of by power electronics and integrated electricity The power drive class product that road technique combines.Device for power switching and high-voltage driving circuit are integrated in one by intelligent power module It rises, and interior keeps the fault detection circuits such as overvoltage, overcurrent and overheat.On the one hand intelligent power module receives the control of MCU Signal, driving subsequent conditioning circuit work, on the other hand sends the state detection signal of system back to MCU.Compared with traditional discrete scheme, Intelligent power module wins increasing market with advantages such as its high integration, high reliability, is particularly suitable for driving motor Frequency converter and various inverters, be one kind of frequency control, metallurgical machinery, electric propulsion, servo-drive and frequency-conversion domestic electric appliances Desired power level electronic device.

IPM is widely applied in air conditioner, and current convertible frequency air-conditioner includes blower, compressor and PFC module, existing change Frequency air-conditioning is usually all to drive its blower, compressor and PFC module by three discrete IPM, so as to cause convertible frequency air-conditioner Automatically controlled cost of manufacture is high and reliability is low, and the wiring difficulty of circuit system is also larger.It is continuous with convertible frequency air-conditioner dosage Increase, the case of convertible frequency air-conditioner failure also increases with it, and the reason of convertible frequency air-conditioner failure is usually all due to it in the prior art There is failure in drive system；In addition convertible frequency air-conditioner is higher relative to the price of fixed frequency air conditioner, the drive of convertible frequency air-conditioner how is reduced The manufacturing cost of dynamic system becomes important subject, and highly integrated, miniaturization and cost declining are the following convertible frequency air-conditioner IPM Development trend.By in the frequency conversion board of traditional frequency conversion air-conditioning control chip MCU, rectifier bridge, the active PFC in part, compressor IPM and Multiple portions integration in this 5 parts blower IPM is into a module, as highly integrated IPM.But it is existing at present Convertible frequency air-conditioner highly integrated IPM be it is merely that the driving circuit of the driving circuit of blower and compressor is so simple that be integrated in Together, internal structure is similar to and is simply superimposed the driving circuit of the driving circuit of blower and compressor, not Realize truly highly integrated and miniaturization, therefore, it is urgently to be resolved for how advanced optimizing the highly integrated IPM of air conditioner Problem.

Also, the device for power switching inside existing intelligent power module is usually Si base device for power switching, people Highly developed to the research of Si base device for power switching, the performance of Si base device for power switching will approach material properties The limit, therefore, the prior art are difficult through approach such as structure innovation and the manufacturing process improvement of Si base device for power switching come big The overall performance of amplitude raising intelligent power module.And it is (i.e. loose as the third generation semiconductor of representative using SiC base device for power switching Bandgap semiconductor power device) there is high high breakdown voltage, power density height, output power, working frequency height and suitable high temperature The advantages that lower work, for example, SiC base MOSFET pipe has very high blocking voltage, without the hangover electricity of similar Si base IGBT pipe Stream, so that the dynamic loss of SiC base MOSFET pipe is very low；And the diode of SiC material also has low-down switching loss； SiC material has the thermal conductivity for being three times in Si material again simultaneously, so that the IPM module based on SiC material has preferably work Temperature and good reliability.In high-voltage power market, SiC base device for power switching (such as SiC base MOSFET pipe) is considered as The perfect replacer of Si base IGBT pipe.

However, Si base device for power switching (such as Si base MOSFET pipe and Si base IGBT pipe) is suitble under normal conditions It works under the driving voltage of 12-15V, therefore, the driving voltage VDD of the intelligent power module in frequency-conversion domestic electric appliances (such as convertible frequency air-conditioner) It is usually arranged as 15V, i.e., the gate drive signal (high level) of the Si base device for power switching in intelligent power module is 15V. But SiC base device for power switching (such as SiC base MOSFET pipe) is more suitable for working under the driving voltage of 18~20V, to lead The driving IC (the also referred to as driving IC of intelligent power module) of Si base device for power switching in existing intelligent power module is caused to be not suitable for It is directly used in driving SiC base device for power switching.Also, in most cases, there may be SiC in intelligent power module simultaneously Base device for power switching and Si base device for power switching, for example, the PFC switching tube in intelligent power module generallys use SiC base Device for power switching substitutes original Si base device for power switching, to improve power correction factor, and then improves power utilization rate, And the inversion device (i.e. upper bridge arm switching tube and lower bridge arm switching tube) in intelligent power module still uses Si base power switch Device may cause SiC base device for power switching if the two uses the driving voltage of identical Si base device for power switching Performance cannot effectively play.

In conclusion how to optimize the highly integrated IPM of air conditioner and keep the driving circuit in the highly integrated IPM same When driving Si base device for power switching and SiC base device for power switching be a problem to be solved.

Utility model content

The main purpose of the utility model is to provide a kind of driver IC circuits of intelligent power module, it is intended to further mention The integrated level of high intelligent power module and meet while driving wanting for Si base device for power switching and SiC base device for power switching It asks.

To achieve the goals above, the utility model provides a kind of driver IC circuits of intelligent power module, the driving IC circuit includes driving voltage input terminal, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control Signal input part, first motor driving circuit, the second motor-drive circuit, PFC driving circuit and booster circuit processed；Wherein:

The first motor driving circuit, the control signal for being inputted according to the upper bridge control signal input drive The dynamic work with upper bridge arm switching tube corresponding to external first motor, and it is defeated according to the lower bridge control signal input institute The control signal entered, the work of driving and lower bridge arm switching tube corresponding to external first motor；

Second motor-drive circuit, the control signal for being inputted according to the upper bridge control signal input drive The dynamic work with upper bridge arm switching tube corresponding to external second motor, and it is defeated according to the lower bridge control signal input institute The control signal entered, the work of driving and lower bridge arm switching tube corresponding to external second motor；

The PFC driving circuit, the control signal for being inputted according to the PFC control signal input, driving are outer The work of portion's PFC switching tube；

The driving voltage input terminal, for providing driving input voltage, Yi Jiwei for the first motor driving circuit The booster circuit provides input voltage；

The booster circuit, the voltage for being inputted to the driving voltage input terminal carry out boosting processing, are described Second motor-drive circuit and the PFC driving circuit provide driving input voltage.

Preferably, the input terminal of the first motor driving circuit and the phase in multiple upper bridge control signal inputs The corresponding lower bridge control signal input that should be gone up in bridge control signal input and multiple lower bridge control signal inputs connects Connect, the output end of the first motor driving circuit and with the control terminal of upper bridge arm switching tube corresponding to external first motor and It is connect with the control terminal of lower bridge arm switching tube corresponding to external first motor；

The input terminal of second motor-drive circuit upper bridge corresponding in multiple upper bridge control signal inputs Corresponding lower bridge control signal input connection in control signal input and multiple lower bridge control signal inputs, it is described The output end of second motor-drive circuit and with the control terminal of upper bridge arm switching tube corresponding to external second motor and with outside The control terminal of lower bridge arm switching tube corresponding to second motor connects；

The input terminal of the PFC driving circuit is connect with the PFC control signal input, the PFC driving circuit Output end is connect with the control terminal of the PFC switching tube；

The input terminal of the booster circuit is connect with the driving voltage input terminal, the output end difference of the booster circuit It is connect with the driving voltage input terminal of the driving voltage input terminal of second motor-drive circuit and the PFC driving circuit.

Preferably, the driver IC circuits further include carrying out the of under-voltage protection for the output end to the booster circuit The input terminal of one under-voltage protecting circuit, first under-voltage protecting circuit is connect with the output end of the booster circuit, and described The output end of one under-voltage protecting circuit is connect with second motor-drive circuit and the PFC driving circuit respectively.

Preferably, the driver IC circuits further include enable end, error signal output end, circuit, false judgment are protected to patrol Collect circuit and driving logic circuit；Wherein:

The protection circuit, for when the driving voltage input terminal occurs under-voltage output UVP signal to described False judgment logic circuit, when overcurrent occurs for the either switch pipe in each switching tube, output overcurrent protects signal to described False judgment logic circuit and when the intelligent power module occur excess temperature when output overheat protector signal to the mistake sentence Disconnected logic circuit；

The false judgment logic circuit, for receive the UVP signal, the overcurrent protection signal or/ When with the overheat protector signal, output error signal to the error signal output end；

The driving logic circuit, for not exporting the error signal in the false judgment logic circuit and described making When the input enable signal of energy end, output open signal to the first motor driving circuit, the second motor-drive circuit and PFC is driven Dynamic circuit is started to work with controlling the first motor driving circuit, the second motor-drive circuit and the PFC driving circuit；

The input terminal electric current with the driving voltage input terminal, each lower bridge arm switching tube respectively of the protection circuit Output end and the connection of the temperature sensing circuit of outside, the output end for protecting circuit are defeated with the false judgment logic circuit Enter end connection, the output end of the false judgment logic circuit is connect with the error signal output end, the driving logic electricity The input terminal on road is connect with the enable end and the false judgment logic circuit respectively, the output end of the driving logic circuit It is connect respectively with the first motor driving circuit, the second motor-drive circuit and the PFC driving circuit.

Preferably, the protection circuit includes the second under-voltage protecting circuit, current foldback circuit and thermal-shutdown circuit；Its In:

Second under-voltage protecting circuit, for the output under-voltage protection letter when the driving voltage input terminal occurs under-voltage Number to the false judgment logic circuit；

The current foldback circuit, for the output overcurrent guarantor when overcurrent occurs for the either switch pipe in each switching tube Signal is protected to the false judgment logic circuit；

The thermal-shutdown circuit, for exporting overheat protector signal when excess temperature occurs for the intelligent power module to institute State false judgment logic circuit；

The input terminal of second under-voltage protecting circuit is connect with the driving voltage input terminal, the current foldback circuit Input terminal connect respectively with the current output terminal of each lower bridge arm switching tube, the input terminal of the thermal-shutdown circuit and outer The temperature sensing circuit in portion connects, the output of the output end, the current foldback circuit of second under-voltage protecting circuit The output end of end and the thermal-shutdown circuit is connect with the input terminal of the false judgment logic circuit.

In addition, to achieve the above object, the utility model also provides a kind of driver IC circuits of intelligent power module, described Driver IC circuits include driving voltage input terminal, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control signal input, first motor driving circuit, the second motor-drive circuit, PFC driving circuit and reduction voltage circuit；Its In:

The driving voltage input terminal, for providing drive for second motor-drive circuit and the PFC driving circuit Dynamic input voltage, and input voltage is provided for the reduction voltage circuit；

The reduction voltage circuit, the voltage for being inputted to the driving voltage input terminal carry out decompression processing, are described First motor driving circuit provides driving input voltage.

The input terminal of the reduction voltage circuit is connect with the driving voltage input terminal, the output end of the reduction voltage circuit and institute State the driving voltage input terminal connection of first motor driving circuit.

Preferably, the driver IC circuits further include carrying out the of under-voltage protection for the output end to the reduction voltage circuit The input terminal of three under-voltage protecting circuits, the third under-voltage protecting circuit is connect with the output end of the reduction voltage circuit, and described The output end of three under-voltage protecting circuits is connect with the first motor driving circuit.

In addition, to achieve the above object, the utility model also provides a kind of driver IC circuits of intelligent power module, described Driver IC circuits include driving voltage input terminal, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control signal input, first motor driving circuit, the second motor-drive circuit, PFC driving circuit and booster circuit；Its In:

The driving voltage input terminal, for being mentioned for the first motor driving circuit and second motor-drive circuit Input voltage is provided for driving input voltage, and for the booster circuit；

The booster circuit, the voltage for being inputted to the driving voltage input terminal carry out boosting processing, are described PFC driving circuit provides driving input voltage.

The input terminal of the booster circuit is connect with the driving voltage input terminal, the output end of the booster circuit and institute State the driving voltage input terminal connection of PFC driving circuit.

Preferably, the driver IC circuits further include carrying out the of under-voltage protection for the output end to the booster circuit The input terminal of one under-voltage protecting circuit, first under-voltage protecting circuit is connect with the output end of the booster circuit, and described The output end of one under-voltage protecting circuit is connect with the PFC driving circuit.

In addition, to achieve the above object, the utility model also provides a kind of intelligent power module, the intelligent power module Including PFC switching tube, multiple resistance, with first corresponding to external first motor on bridge arm switching tube, bridge arm switching tube on second, Bridge arm switching tube, the first lower bridge arm switching tube, the second lower bridge arm switching tube and third lower bridge arm switching tube in third, with external the Bridge arm switching tube on the 4th corresponding to two motors, bridge arm switching tube on the 5th, bridge arm switching tube, the 4th lower bridge arm switch on the 6th The driver IC circuits of pipe, the 5th lower bridge arm switching tube and the 6th lower bridge arm switching tube and intelligent power module as described above； Wherein:

On first of first motor driving circuit in the driver IC circuits bridge output end through the resistance with it is described On first bridge arm switching tube control terminal connection, the first motor driving circuit second on bridge output end through the resistance It is connect with the control terminal of bridge arm switching tube on described second, bridge output end is through an institute in the third of the first motor driving circuit Resistance is stated to connect with the control terminal of bridge arm switching tube in the third；The lower bridge output end of the first of the first motor driving circuit It is connect through the resistance with the control terminal of the first lower bridge arm switching tube, the lower bridge of the second of the first motor driving circuit Output end is connect through the resistance with the control terminal of the second lower bridge arm switching tube, and the of the first motor driving circuit Three lower bridge output ends are connect through the resistance with the control terminal of the third lower bridge arm switching tube；

On first of the second motor-drive circuit in the driver IC circuits bridge output end through the resistance with it is described On 4th bridge arm switching tube control terminal connection, second motor-drive circuit second on bridge output end through the resistance It is connect with the control terminal of bridge arm switching tube on the described 5th, bridge output end is through an institute in the third of second motor-drive circuit Resistance is stated to connect with the control terminal of bridge arm switching tube on the described 6th；The lower bridge output end of the first of second motor-drive circuit It is connect through the resistance with the control terminal of the 4th lower bridge arm switching tube, the lower bridge of the second of second motor-drive circuit Output end is connect through the resistance with the control terminal of the 5th lower bridge arm switching tube, and the of second motor-drive circuit Three lower bridge output ends are connect through the resistance with the control terminal of the 6th lower bridge arm switching tube；

Control of the output end of PFC driving circuit in the driver IC circuits through the resistance Yu the PFC switching tube End connection processed.

Preferably, the intelligent power module further includes the first current sampling resistor, the second current sampling resistor and third Current sampling resistor；Wherein:

The first end of first current sampling resistor is connect with the current output terminal of the PFC switching tube, and described second The first end of current sampling resistor respectively with the first lower bridge arm switching tube, the second lower bridge arm switching tube and the third The current output terminal of lower bridge arm switching tube connects, the first end of the third current sampling resistor respectively with the 4th lower bridge arm The current output terminal of switching tube, the 5th lower bridge arm switching tube and the 6th lower bridge arm switching tube connects, first electricity Flow the second end of the second end of sampling resistor, the second end of second current sampling resistor and the third current sampling resistor Ground connection；The first end of first current sampling resistor also with the current foldback circuit in the driver IC circuits first Input terminal connection, the first end of second current sampling resistor also with the current foldback circuit in the driver IC circuits The second input terminal connection, the first end of the third current sampling resistor also in the driver IC circuits the overcurrent protect The third input terminal of protection circuit connects.

Preferably, the intelligent power module further includes the temperature detection for detecting the temperature of the intelligent power module Circuit, the temperature sensing circuit are connect with the input terminal of the thermal-shutdown circuit in the driver IC circuits.

Preferably, bridge arm switching tube on described first, bridge arm switching tube on described second, bridge arm switch in the third Pipe, the first lower bridge arm switching tube, the second lower bridge arm switching tube and the third lower bridge arm switching tube are Si base IGBT Pipe, bridge arm switching tube on the described 4th, bridge arm switching tube on the described 5th, on the described 6th under bridge arm switching tube, the described 4th Bridge arm switching tube, the 5th lower bridge arm switching tube, the 6th lower bridge arm switching tube and the PFC switching tube are SiC base MOSFET pipe.

Preferably, the intelligent power module further includes the first higher-pressure region power supply input terminal, the power supply of the second higher-pressure region Power input, multiple freewheeling diodes, PFC signal output end and first diode；Wherein:

The collector of bridge arm switching tube on described first, the collector of bridge arm switching tube on second, bridge arm in the third The collector of switching tube, the collector of bridge arm switching tube on the 4th, the collector of bridge arm switching tube on the 5th, bridge on the described 6th The collector of arm switch pipe is connect with the first higher-pressure region power supply input terminal, the transmitting of bridge arm switching tube on described first Pole is connect with the collector of the first lower bridge arm switching tube, on described second under the emitter of bridge arm switching tube and described second The collector of bridge arm switching tube connects, the collection of the emitter of bridge arm switching tube and the third lower bridge arm switching tube in the third Electrode connects, and the emitter of bridge arm switching tube is connect with the collector of the 4th lower bridge arm switching tube on the described 4th, described The emitter of bridge arm switching tube is connect with the collector of the 5th lower bridge arm switching tube on 5th, and bridge arm switchs on the described 6th The emitter of pipe is connect with the collector of the 6th lower bridge arm switching tube；The emitter of the first lower bridge arm switching tube, institute State the emitter of the second lower bridge arm switching tube and the emitter of the third lower bridge arm switching tube and second current sample electricity The first end of resistance connects, the emitter of the 4th lower bridge arm switching tube, the emitter of the 5th lower bridge arm switching tube and institute The emitter for stating the 6th lower bridge arm switching tube is connect with the first end of the third current sampling resistor；The PFC switching tube Collector is connect with the anode of the PFC signal output end and the first diode respectively, the cathode of the first diode It is connect with the second higher-pressure region power supply input terminal, the emitter of the PFC switching tube and first current sample electricity The first end of resistance connects；A freewheeling diode is connected between the collector and emitter of each switching tube；

The connecting node of bridge arm switching tube and the first lower bridge arm switching tube on described first, bridge arm is opened on described second Bridge arm switching tube and the third lower bridge arm in the connecting node and the third of second lower bridge arm switching tube described in Guan Guanyu The connecting node of switching tube is connect with external first motor, bridge arm switching tube and the 4th lower bridge arm switching tube on the described 4th Connecting node, on the described 5th in the connecting node and the described 6th of bridge arm switching tube and the 5th lower bridge arm switching tube Bridge arm switching tube is connect with the connecting node of the 6th lower bridge arm switching tube with external second motor.

Preferably, the intelligent power module further include the first boostrap circuit, the second boostrap circuit, third boostrap circuit, 4th boostrap circuit, the 5th boostrap circuit and the 6th boostrap circuit；Wherein:

The first end of first boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The collection of the emitter of bridge arm switching tube and the first lower bridge arm switching tube in the second end of first boostrap circuit and described first Electrode connection；

The first end of second boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The collection of the emitter of bridge arm switching tube and the second lower bridge arm switching tube in the second end of second boostrap circuit and described second Electrode connection；

The first end of the third boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The emitter of bridge arm switching tube and the collection of the third lower bridge arm switching tube in the second end of third boostrap circuit and the third Electrode connection；

The first end of 4th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The collection of the emitter of bridge arm switching tube and the 4th lower bridge arm switching tube in the second end of 4th boostrap circuit and the described 4th Electrode connection；

The first end of 5th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The collection of the emitter of bridge arm switching tube and the 5th lower bridge arm switching tube in the second end of 5th boostrap circuit and the described 5th Electrode connection；

The first end of 6th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, described The collection of the emitter of bridge arm switching tube and the 6th lower bridge arm switching tube in the second end of 6th boostrap circuit and the described 6th Electrode connection.

Preferably, bridge arm switching tube on described first, bridge arm switching tube on described second, bridge arm switch in the third Pipe, the first lower bridge arm switching tube, the second lower bridge arm switching tube, the third lower bridge arm switching tube, on the described 4th Bridge arm switching tube, bridge arm switching tube on the described 5th, bridge arm switching tube, the 4th lower bridge arm switching tube, institute on the described 6th The 5th lower bridge arm switching tube and the 6th lower bridge arm switching tube are stated as Si base IGBT pipe, the PFC switching tube is SiC base MOSFET pipe.

In addition, to achieve the above object, the utility model also provides a kind of air conditioner, the air conditioner includes as described above Intelligent power module.

The driver IC circuits of the utility model intelligent power module will be as that will be used for corresponding to driving and external first motor Upper bridge arm switching tube and the work of lower bridge arm switching tube first motor driving circuit, right with external second motor for driving Answer upper bridge arm switching tube and lower bridge arm switching tube work the second motor-drive circuit and for driving external PFC switching tube The PFC driving circuit of work is all integrated in the same IC chip, so that the driving IC electricity of the utility model intelligent power module Road compared with the existing technology in intelligent power module driver IC circuits, further increase the integrated of intelligent power module Degree, to reduce the cost of intelligent power module, while also improving the reliability of intelligent power module；Also, this is practical The driver IC circuits of novel intelligent power module can be to the utility model due to being additionally provided with booster circuit, the booster circuit The voltage that the driving voltage input terminal in the driver IC circuits of intelligent power module is inputted carries out boosting processing and (such as will 15V boost in voltage is 18V-20V voltage), driving input is provided for second motor-drive circuit and the PFC driving circuit Voltage, thus for the SiC base device for power switching that is connect with the output end of second motor-drive circuit and with the PFC The SiC base device for power switching of the output end connection of driving circuit provides suitable driving voltage, i.e. the utility model intelligence function The driver IC circuits of rate module can be realized while provide suitable drive for SiC base device for power switching and Si base device for power switching The purpose of dynamic voltage, to meet while drive the requirement of Si base device for power switching and SiC base device for power switching.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of the driver IC circuits first embodiment of the utility model intelligent power module；

Fig. 2 is the structural schematic diagram of the driver IC circuits second embodiment of the utility model intelligent power module；

Fig. 3 is the structural schematic diagram of the driver IC circuits 3rd embodiment of the utility model intelligent power module；

Fig. 4 is the structural schematic diagram of the utility model intelligent power module first embodiment；

Fig. 5 is the structural schematic diagram of the utility model intelligent power module second embodiment；

Fig. 6 is the structural schematic diagram of the utility model intelligent power module 3rd embodiment.

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this Utility model.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, without It can be interpreted as its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.It defines as a result, The feature of " first ", " second " can explicitly or implicitly include at least one of the features.In addition, between each embodiment Technical solution can be combined with each other, but must based on can be realized by those of ordinary skill in the art, work as technical solution Combination there is conflicting or cannot achieve when and will be understood that the combination of this technical solution is not present, it is also practical not new at this Within the protection scope that type requires.

The utility model provides a kind of driver IC circuits of intelligent power module, and Fig. 1 is the utility model intelligent power mould The structural schematic diagram of the driver IC circuits first embodiment of block, referring to Fig.1, in the present embodiment, the driving of the intelligent power module IC circuit 100 includes driving voltage input terminal VCC, bridge control signal input HIN1 on first, bridge control signal is defeated on second Enter to hold HIN2, bridge control signal input HIN3 in third, bridge control signal input HIN4 on the 4th, bridge control letter on the 5th Number input terminal HIN5, bridge control signal input HIN6, the first lower bridge control signal input LIN1, the second lower bridge control on the 6th Under signal input part LIN2 processed, third under bridge control signal input LIN3, the 4th lower bridge control signal input LIN4, the 5th Bridge control signal input LIN5, the 6th lower bridge control signal input LIN6, PFC control signal input PFCIN, the first electricity Drive circuit 101, the second motor-drive circuit 102, PFC driving circuit 103 and booster circuit 104.

Wherein, the first motor driving circuit 101, for according to bridge control signal input HIN1 on described first, The control letter that bridge control signal input HIN3 is inputted in bridge control signal input HIN2 and the third on described second Number, the work of driving and upper bridge arm switching tube (not shown) corresponding to external first motor (not shown)；And according to described Bridge control letter under first lower bridge control signal input LIN1, second lower bridge control signal input LIN2, the third The control signal that number input terminal LIN3 is inputted, driving and lower bridge arm switching tube (not shown) corresponding to external first motor Work；

Second motor-drive circuit 102, for according to bridge control signal input HIN4 on the described 4th, described the The control signal that bridge control signal input HIN6 is inputted on bridge control signal input HIN5 and the described 6th on five, driving With the work of upper bridge arm switching tube (not shown) corresponding to external second motor (not shown)；And according to the described 4th lower bridge Control signal input LIN4, the 5th lower bridge control signal input LIN5 and the 6th lower bridge control signal input The control signal that LIN6 is inputted, the work of driving and lower bridge arm switching tube (not shown) corresponding to external second motor；

The PFC driving circuit 103, the control letter for being inputted according to the PFC control signal input PFCIN Number, the work of external PFC switching tube (not shown) is driven, the output end of the PFC driving circuit 103 is PFCO；

The driving voltage input terminal VCC, for providing driving input voltage for the first motor driving circuit 101, And input voltage is provided for the booster circuit 104；

The booster circuit 104, the voltage for being inputted to the driving voltage input terminal VCC carry out boosting processing, For example, the 15V boost in voltage is by the booster circuit 104 when the voltage of the driving voltage input terminal VCC input is 15V 18V-20V voltage provides driving input voltage for second motor-drive circuit 102 and the PFC driving circuit 103, from And it is the SiC base device for power switching (such as SiC base MOSFET pipe) connecting with the output end of second motor-drive circuit 102 And the SiC base device for power switching (such as SiC base MOSFET pipe) connecting with the output end of the PFC driving circuit 103 provides Suitable driving voltage.It is understood that the 15V voltage that the driving voltage input terminal VCC is inputted can be directly used for driving The work of the dynamic Si base device for power switching (such as Si base IGBT pipe) being connect with the output end of the first motor driving circuit 101 Make.

It include 3 switching tube (not shown) with upper bridge arm switching tube corresponding to external first motor in the present embodiment, because This, the upper bridge output end of the first motor driving circuit 101 includes bridge output end HO1 on first, bridge output end HO2 on second With bridge output end HO3 in third；It also include that (figure is not for 3 switching tubes with lower bridge arm switching tube corresponding to external first motor Show), therefore, the lower bridge output end of the first motor driving circuit 101 is defeated including the first lower bridge output end LO1, the second lower bridge Bridge output end LO3 under outlet LO2 and third；

It include 3 switching tube (not shown), therefore, described second with upper bridge arm switching tube corresponding to external second motor The upper bridge output end of motor-drive circuit 102 includes bridge output end HO4 on first, bridge in bridge output end HO5 and third on second Output end HO6；It also include 3 switching tube (not shown) with lower bridge arm switching tube corresponding to external second motor, it is therefore, described The lower bridge output end of second motor-drive circuit 102 includes the first lower bridge output end LO4, the second lower bridge output end LO5 and third Lower bridge output end LO6.

In the present embodiment, the input terminal of the first motor driving circuit 101 includes bridge input terminal on first, bridge on second Bridge input terminal under bridge input terminal, the first lower bridge input terminal, the second lower bridge input terminal and third on input terminal, third.Wherein, described Bridge input terminal is connect with bridge control signal input HIN1 on described first on the first of first motor driving circuit 101, described Bridge input terminal is connect with bridge control signal input HIN2 on described second on the second of first motor driving circuit 101, described Bridge input terminal is connect with bridge control signal input HIN3 in the third in the third of first motor driving circuit 101；It is described The lower bridge input terminal of the first of first motor driving circuit 101 is connect with bridge control signal input LIN1 on described first, described The lower bridge input terminal of the second of first motor driving circuit 101 is connect with about the second bridge control signal input LIN2, institute Bridge input terminal under the third of first motor driving circuit 101 is stated to connect with bridge control signal input LIN3 under the third.

Bridge output end HO1 on the first of the first motor driving circuit 101, on second in bridge output end HO2 and third Control terminal of the bridge output end HO3 respectively with 3 corresponding to external first motor upper bridge arm switching tubes connects one to one, described Bridge output end LO3 points under the lower bridge output end LO1 of the first of first motor driving circuit 101, the second lower bridge output end LO2 and third Control terminal not with 3 lower bridge arm switching tubes corresponding to external first motor connects one to one.

In the present embodiment, the input terminal of second motor-drive circuit 102 includes bridge input terminal on the 4th, bridge on the 5th Input terminal, bridge input terminal, the 4th lower bridge input terminal, the 5th lower bridge input terminal and the 6th lower bridge input terminal on the 6th.Wherein, described Bridge input terminal is connect with bridge control signal input HIN4 on the described 4th on the 4th of second motor-drive circuit 102, described Bridge input terminal is connect with bridge control signal input HIN5 on the described 5th on the 5th of second motor-drive circuit 102, described Bridge input terminal is connect with bridge control signal input HIN6 on the described 6th on the 6th of second motor-drive circuit 102；It is described The lower bridge input terminal of the 4th of second motor-drive circuit 102 is connect with the described 4th lower bridge control signal input LIN4, described The lower bridge input terminal of the 5th of second motor-drive circuit 102 is connect with the described 5th lower bridge control signal input LIN5, described The lower bridge input terminal of the 6th of second motor-drive circuit 102 is connect with the described 6th lower bridge control signal input LIN6.

Bridge output end HO4 on the first of second motor-drive circuit 102, on second in bridge output end HO5 and third Control terminal of the bridge output end HO6 respectively with 3 upper bridge arm switching tubes corresponding to external second motor connects one to one, described Bridge output end LO6 points under the lower bridge output end LO4 of the first of second motor-drive circuit 102, the second lower bridge output end LO5 and third Control terminal not with 3 lower bridge arm switching tubes corresponding to external second motor connects one to one.

In the present embodiment, the input terminal of the PFC driving circuit 103 and the PFC control signal input PFCIN connect It connects, the output end of the PFC driving circuit 103 is connect with the control terminal of the PFC switching tube (not shown)；

In the present embodiment, the input terminal of the booster circuit 104 is connect with the driving voltage input terminal VCC, the liter The output end of volt circuit 104 is electric with the driving voltage input terminal of second motor-drive circuit 102 and PFC driving respectively The driving voltage input terminal on road 103 connects.

Further, the driver IC circuits 100 of the present embodiment intelligent power module further include the first under-voltage protecting circuit 105, first under-voltage protecting circuit 105 is used to carry out under-voltage protection to the output end of the booster circuit 104, to ensure The voltage for stating the output end of booster circuit 104 is maintained on stable voltage, the electricity of the output end of booster circuit 104 as described in making Pressure is maintained at 18V-20V.

In the present embodiment, the output end of the input terminal of first under-voltage protecting circuit 105 and the booster circuit 104 connects It connects, the output end of first under-voltage protecting circuit 105 drives with second motor-drive circuit 102 and the PFC respectively Circuit 103 connects.

Further, the driver IC circuits 100 of the present embodiment intelligent power module further include that enable end EN, error signal are defeated Outlet FAULT, reset terminal RS, protection circuit 106, false judgment logic circuit 107 and driving logic circuit 108.The present embodiment The driver IC circuits 100 of intelligent power module further include reset terminal RS, and the present embodiment is in reset terminal RS when inputting reset signal It is resetted.

Specifically, the protection circuit 106, it is under-voltage for being exported when the driving voltage input terminal VCC occurs under-voltage Protect signal to the false judgment logic circuit 107, when in above-mentioned each switching tube either switch pipe occur overcurrent when Output overcurrent protects signal defeated to the false judgment logic circuit 107 and when excess temperature occurs for the intelligent power module Overheat protector signal is to the false judgment logic circuit 107 out；

The false judgment logic circuit 107, for receiving the UVP signal, the overcurrent protection signal Or/and when the overheat protector signal, output error signal to the error signal output end FUALT；

The driving logic circuit 108, for the false judgment logic circuit 107 do not export the error signal and When the enable end EN input enable signal, output open signal to the first motor driving circuit 101, second motor Driving circuit 102 and the PFC driving circuit 103, to control the first motor driving circuit 101, second motor drives Dynamic circuit 102 and the PFC driving circuit 103 are started to work.

In the present embodiment, the input terminal of the protection circuit 106 respectively with the driving voltage input terminal VCC, each described The current output terminal of lower bridge arm switching tube and the temperature sensing circuit (not shown) connection of outside, it is described to protect the defeated of circuit 106 Outlet is connect with the input terminal of the false judgment logic circuit 107, the output end of the false judgment logic circuit 107 and institute State the FAULT connection of error signal output end, the input terminal of the driving logic circuit 108 respectively with the enable end EN and described False judgment logic circuit 107 connect, the output end of the driving logic circuit 108 respectively with the first motor driving circuit 101, the second motor-drive circuit 102 and the PFC driving circuit 103 connection.

Further, in this embodiment the protection circuit 106 includes the second under-voltage protecting circuit 1061, overcurrent protection Circuit 1062 and thermal-shutdown circuit 1063.

Wherein, second under-voltage protecting circuit 1061, for the driver IC circuits in the present embodiment intelligent power module UVP signal is exported when 100 driving voltage input terminal VCC occurs under-voltage to the false judgment logic circuit 107；

The current foldback circuit 1062, for defeated when overcurrent occurs for the either switch pipe in above-mentioned each switching tube Overcurrent protection signal is to the false judgment logic circuit 107 out；

The thermal-shutdown circuit 1063, for exporting overheat protector signal when excess temperature occurs for the intelligent power module To the false judgment logic circuit 107.

In the present embodiment, the input terminal of second under-voltage protecting circuit 1061 and the driving voltage input terminal VCC connect It connects, the input terminal of the current foldback circuit 1062 is connect with the current output terminal of each lower bridge arm switching tube respectively, described The input terminal of thermal-shutdown circuit 1063 is connect with the external temperature sensing circuit, second under-voltage protecting circuit 1061 Output end, the current foldback circuit 1062 output end and the thermal-shutdown circuit 1063 output end and the mistake The input terminal of decision logic circuit 107 connects.

The driver IC circuits 100 of the present embodiment intelligent power module will be as that will be used for corresponding to driving and external first motor Upper bridge arm switching tube and the work of lower bridge arm switching tube first motor driving circuit 101, for driving and external second motor Corresponding upper bridge arm switching tube and lower bridge arm switching tube work the second motor-drive circuit 102 and for driving outside The PFC driving circuit 103 of PFC switching tube work is all integrated in the same IC chip, so that the present embodiment intelligent power module Driver IC circuits 100 compared with the existing technology in intelligent power module driver IC circuits, further increase intelligent function The integrated level of rate module to reduce the cost of intelligent power module, while also improving the reliability of intelligent power module； Also, the driver IC circuits 100 of the present embodiment intelligent power module are due to being additionally provided with the booster circuit 104, the boosting Circuit 104 can driving voltage input terminal VCC institute in the driver IC circuits 100 to the present embodiment intelligent power module it is defeated The voltage entered carries out boosting processing (being such as 18V-20V voltage by 15V boost in voltage), is second motor-drive circuit 102 Driving input voltage is provided with the PFC driving circuit 103, thus for the output end with second motor-drive circuit 102 It the SiC base device for power switching (such as SiC base MOSFET pipe) of connection and is connect with the output end of the PFC driving circuit 103 SiC base device for power switching (such as SiC base MOSFET pipe) suitable driving voltage, i.e. the present embodiment intelligent power module are provided Driver IC circuits 100 can realize while for the SiC base device for power switching (such as SiC base MOSFET pipe) in intelligent power module The purpose of suitable driving voltage is provided with Si base device for power switching (such as Si base IGBT pipe), to meet while drive Si The requirement of base device for power switching and SiC base device for power switching.

Fig. 2 is the structural schematic diagram of the driver IC circuits second embodiment of the utility model intelligent power module, is joined together According to Fig. 2 and Fig. 1, the driver IC circuits 200 of the present embodiment intelligent power module and the intelligent function in above-mentioned first embodiment The difference of the driver IC circuits 100 of rate module is as follows:

The driver IC circuits 200 of the present embodiment intelligent power module are equipped with reduction voltage circuit 104 ' (in above-mentioned first embodiment The intelligent power module driver IC circuits 100 be equipped with booster circuit 104), the driving of the present embodiment intelligent power module The driving voltage input terminal VCC in IC circuit 200 is used to second motor-drive circuit 102 and the PFC drives Dynamic circuit 103 provides driving input voltage, and the driving voltage input terminal VCC is also used to provide for the reduction voltage circuit 104 ' defeated Enter voltage, the voltage that the reduction voltage circuit 104 ' in the present embodiment is used to input the driving voltage input terminal VCC into Row decompression processing, the 18V-20V voltage step-down of driving voltage input terminal VCC input is 15V voltage as will be described, to be described First motor driving circuit 101 provides driving input voltage, and then to connect with the output end of the first motor driving circuit 101 The Si base device for power switching (such as Si base IGBT pipe) connect provides suitable driving voltage.It is understood that if the driving The voltage that voltage input end VCC is inputted is 18V-20V, then the voltage of the 18V-20V can be directly used for that SiC base power is driven to open Close the work of device (such as SiC base MOSFET pipe).

In the present embodiment, the input terminal of the reduction voltage circuit 104 ' is connect with the driving voltage input terminal VCC, the drop The output end of volt circuit 104 ' is connect with the driving voltage input terminal of the first motor driving circuit 101.The present embodiment intelligence The driver IC circuits 200 of power module further include that the third of under-voltage protection is carried out for the output end to the reduction voltage circuit 104 ' Under-voltage protecting circuit 105 ', the input terminal of the third under-voltage protecting circuit 105 ' and the output end of the reduction voltage circuit 104 ' connect It connects, the output end of the third under-voltage protecting circuit 105 ' is connect with the first motor driving circuit 101.

The connection structure of other circuits in the driver IC circuits 200 of the present embodiment intelligent power module and above-mentioned first is in fact It is identical to apply example, details are not described herein again.

The driver IC circuits 200 of the present embodiment intelligent power module will be as that will be used for corresponding to driving and external first motor Upper bridge arm switching tube and the work of lower bridge arm switching tube first motor driving circuit 101, for driving and external second motor Corresponding upper bridge arm switching tube and lower bridge arm switching tube work the second motor-drive circuit 102 and for driving outside The PFC driving circuit 103 of PFC switching tube work is all integrated in the same IC chip, so that the present embodiment intelligent power module Driver IC circuits 200 compared with the existing technology in intelligent power module driver IC circuits, further increase intelligent function The integrated level of rate module to reduce the cost of intelligent power module, while also improving the reliability of intelligent power module； Similarly, the driver IC circuits 200 of the present embodiment intelligent power module can be realized while be the SiC base power in intelligent power module Switching device (such as SiC base MOSFET pipe) and Si base device for power switching (as Si base IGBT is managed) provide suitable driving voltage Purpose, to meet while drive the requirement of Si base device for power switching and SiC base device for power switching.

Fig. 3 is the structural schematic diagram of the driver IC circuits 3rd embodiment of the utility model intelligent power module, is joined together According to Fig. 3 and Fig. 1, the driver IC circuits 300 of the present embodiment intelligent power module and the intelligent function in above-mentioned first embodiment The difference of the driver IC circuits 100 of rate module is as follows:

The driving voltage input terminal VCC in the driver IC circuits 300 of the present embodiment intelligent power module is used to The first motor driving circuit 101 and second motor-drive circuit 102 provide driving input voltage, and the present embodiment In the booster circuit 104 for carrying out boosting processing to the driving voltage input terminal VCC voltage inputted, to be The PFC driving circuit 103 provides driving input voltage.In the present embodiment, the input terminal of the booster circuit 104 and the drive The driving voltage of dynamic voltage input end VCC connection, the output end of the booster circuit 104 and the PFC driving circuit 103 inputs End connection.

The input of first under-voltage protecting circuit 105 in the driver IC circuits 300 of the present embodiment intelligent power module End is connect with the output end of the booster circuit 104, and the output end and the PFC of first under-voltage protecting circuit 105 drive Circuit 103 connects.

The booster circuit 104 in the present embodiment is for boosting to the voltage of the driving voltage input terminal VCC Processing, the 15V voltage step-down of driving voltage input terminal VCC input is 18V-20V voltage as will be described, to drive for the PFC Dynamic circuit 103 provides driving input voltage, and then opens for the SiC base power connecting with the output end of the PFC driving circuit 103 It closes device (such as SiC base MOSFET pipe) and suitable driving voltage is provided.It is understood that such as the driving in the present embodiment The voltage that voltage input end VCC is inputted is 15V, then the voltage of the 15V can be directly used for driving Si base device for power switching (such as Si base IGBT pipe) work.

The connection structure of other circuits in the driver IC circuits 300 of the present embodiment intelligent power module and above-mentioned first is in fact It is identical to apply example, details are not described herein again.

The driver IC circuits 300 of the present embodiment intelligent power module will be as that will be used for corresponding to driving and external first motor Upper bridge arm switching tube and the work of lower bridge arm switching tube first motor driving circuit 101, for driving and external second motor Corresponding upper bridge arm switching tube and lower bridge arm switching tube work the second motor-drive circuit 102 and for driving outside The PFC driving circuit 103 of PFC switching tube work is all integrated in the same IC chip, so that the present embodiment intelligent power module Driver IC circuits 300 compared with the existing technology in intelligent power module driver IC circuits, further increase intelligent function The integrated level of rate module to reduce the cost of intelligent power module, while also improving the reliability of intelligent power module； Similarly, the driver IC circuits 300 of the present embodiment intelligent power module can be realized while be the SiC base power in intelligent power module Switching device (such as SiC base MOSFET pipe) and Si base device for power switching (as Si base IGBT is managed) provide suitable driving voltage Purpose, to meet while drive the requirement of Si base device for power switching and SiC base device for power switching.

The utility model also provides a kind of intelligent power module, and Fig. 4 is the implementation of the utility model intelligent power module first The structural schematic diagram of example, together referring to Fig. 4 and Fig. 1, the intelligent power module 400 include PFC switching tube Q5, multiple resistance (such as Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, R6, R7 and R8 etc.), with first corresponding to external first motor M1 on Bridge arm switching tube Q1, bridge arm switching tube (not shown) on second, bridge arm switching tube (not shown), the first lower bridge arm switch in third Corresponding to pipe Q2, the second lower bridge arm switching tube (not shown) and third lower bridge arm switching tube (not shown) and external second motor Bridge arm switching tube Q3 on 4th, bridge arm switching tube (not shown) on the 5th, bridge arm switching tube (not shown), the 4th lower bridge on the 6th Arm switch pipe Q4, the 5th lower bridge arm switching tube (not shown) and the 6th lower bridge arm switching tube (not shown) and as described above The driver IC circuits 100 (driver IC circuits 100 of intelligent power module i.e. shown in FIG. 1) of intelligent power module.

Specifically, in the present embodiment, the first motor driving circuit 101 in the driver IC circuits 100 first on bridge Output end HO1 is connect through the resistance R1 with the control terminal of bridge arm switching tube Q1 on described first, the first motor driving electricity Control of the bridge output end HO2 through bridge arm switching tube (not shown) in a resistance (not shown) and described second on the second of road 101 End connects, and bridge output end HO3 is through in a resistance (not shown) and the third in the third of the first motor driving circuit 101 The control terminal of bridge arm switching tube (not shown) connects；The lower bridge output end LO1 of the first of the first motor driving circuit 101 is through electricity Resistance R2 is connect with the control terminal of the first lower bridge arm switching tube Q2, and the lower bridge of the second of the first motor driving circuit 101 is defeated Outlet LO2 is connect through a resistance (not shown) with the control terminal of the second lower bridge arm switching tube (not shown), first electricity (figure is not through a resistance (not shown) and the third lower bridge arm switching tube by bridge output end LO3 under the third of drive circuit 101 Show) control terminal connection；

On first of the second motor-drive circuit 102 in the driver IC circuits 100 bridge output end HO4 through resistance R3 with On described 4th bridge arm switching tube Q3 control terminal connection, second motor-drive circuit 102 second on bridge output end HO5 It is connect through a resistance (not shown) with the control terminal of bridge arm switching tube (not shown) on the described 5th, the second motor driven electricity Control of the bridge output end HO6 through bridge arm switching tube (not shown) in a resistance (not shown) and the described 6th in the third on road 102 End connection；The lower bridge output end LO4 of the first of second motor-drive circuit 102 is switched through resistance R4 and the 4th lower bridge arm The control terminal of pipe Q4 connects, the lower bridge output end LO5 of the second of second motor-drive circuit 102 through a resistance (not shown) with The control terminal of the 5th lower bridge arm switching tube (not shown) connects, and bridge is defeated under the third of second motor-drive circuit 102 Outlet LO6 is connect through a resistance (not shown) with the control terminal of the 6th lower bridge arm switching tube (not shown)；In the present embodiment, Control of the output end PFCO of PFC driving circuit 103 in the driver IC circuits 100 through resistance R5 Yu the PFC switching tube Q5 End connection processed.

In the present embodiment, the voltage of the driving voltage input terminal VCC in the driver IC circuits 100 is 15V, described Bridge arm switching tube Q1 on first, bridge arm switching tube (not shown) on described second, bridge arm switching tube (not shown) in the third, The first lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown) and the third lower bridge arm switching tube (figure Do not show) it is managed for Si base IGBT, bridge arm switching tube Q3 on the described 4th, bridge arm switching tube (not shown) on the described 5th, described the Bridge arm switching tube (not shown), the 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube (not shown), institute on six The 6th lower bridge arm switching tube (not shown) and the PFC switching tube Q5 are stated as SiC base MOSFET pipe.Specifically, in the present embodiment, Bridge arm switching tube Q3 on described 4th, bridge arm switching tube (not shown) on the described 5th, (figure is not for bridge arm switching tube on the described 6th Show), the 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube (not shown), the 6th lower bridge arm switching tube (not shown) and the PFC switching tube Q5 are the NMOS tube of SiC base.

Further, the present embodiment intelligent power module 400 further includes the first current sampling resistor R6, the second current sample Resistance R7 and third current sampling resistor R8.Wherein, the first end of the first current sampling resistor R6 and the PFC switching tube The current output terminal of Q5 connects, the second end ground connection of the first current sampling resistor R6；The second current sampling resistor R7 First end respectively and under the first lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown) and the third The current output terminal of bridge arm switching tube (not shown) connects, the second end ground connection of the second current sampling resistor R7；Described The first end of three current sampling resistor R8 (is schemed with the 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube respectively Do not show) and the 6th lower bridge arm switching tube (not shown) current output terminal connection, the third current sampling resistor R8's Second end ground connection.In the present embodiment, the first end of the first current sampling resistor R6 is also and in the driver IC circuits 100 The first input end of the current foldback circuit 1062 connects, the first end of the second current sampling resistor R7 also with the drive The second input terminal connection of the current foldback circuit 1062 in dynamic IC circuit 100, the third current sampling resistor R8's First end is also connect with the third input terminal of the current foldback circuit 1062 in the driver IC circuits 100.

The present embodiment intelligent power module 400 further includes the temperature for detecting the present embodiment intelligent power module 400 Temperature sensing circuit 10, the temperature sensing circuit 10 and the thermal-shutdown circuit 1063 in the driver IC circuits 100 Input terminal connection.

The present embodiment intelligent power module 400 further includes the first higher-pressure region power supply input terminal P1, the confession of the second higher-pressure region Electric power input P2, multiple freewheeling diodes (such as freewheeling diode FRD1, freewheeling diode FRD2, freewheeling diode FRD3, Freewheeling diode FRD4 and freewheeling diode FRD5), PFC signal output end PFCOUT and first diode D1.Specifically, this reality It applies in example, the collector of bridge arm switching tube Q1 on described first, the collector of bridge arm switching tube (not shown), described on second The collector of bridge arm switching tube (not shown) on three, the collector of bridge arm switching tube Q3 on the 4th, bridge arm switching tube (figure on the 5th Do not show) collector, the collector and first higher-pressure region power supply of bridge arm switching tube (not shown) are defeated on the described 6th Enter P1 is held to connect, the collector of the emitter of bridge arm switching tube Q1 and the first lower bridge arm switching tube Q2 connect on described first It connects, the collector of the emitter of bridge arm switching tube (not shown) and the second lower bridge arm switching tube (not shown) on described second It connects, the current collection of the emitter of bridge arm switching tube (not shown) and the third lower bridge arm switching tube (not shown) in the third Pole connects, and the emitter of bridge arm switching tube Q3 is connect with the collector of the 4th lower bridge arm switching tube Q4 on the described 4th, institute The emitter of bridge arm switching tube (not shown) on the 5th is stated to connect with the collector of the 5th lower bridge arm switching tube (not shown), The emitter of bridge arm switching tube (not shown) and the collector of the 6th lower bridge arm switching tube (not shown) connect on described 6th It connects；The emitter of the first lower bridge arm switching tube Q2, the emitter of the second lower bridge arm switching tube (not shown) and described The emitter of third lower bridge arm switching tube (not shown) is connect with the first end of the second current sampling resistor R7, and the described 4th The emitter of lower bridge arm switching tube Q4, the emitter of the 5th lower bridge arm switching tube (not shown) and the 6th lower bridge arm are opened The emitter for closing pipe (not shown) is connect with the first end of the third current sampling resistor R8；The collection of the PFC switching tube Q5 Electrode is connect with the anode of the PFC signal output end PFCOUT and the first diode D1 respectively, the first diode The cathode of D1 is connect with the second higher-pressure region power supply input terminal P2, the emitter of the PFC switching tube Q5 and described the The first end of one current sampling resistor R6 connects.

In the present embodiment, the cathode of freewheeling diode FRD1 is connect with the collector of bridge arm switching tube Q1 on described first, The anode of freewheeling diode FRD1 is connect with the emitter of bridge arm switching tube Q1 on described first, the cathode of freewheeling diode FRD2 It is connect with the collector of the first lower bridge arm switching tube Q2, the anode of freewheeling diode FRD2 and first lower bridge arm switch The emitter of pipe Q2 connects, and the cathode of freewheeling diode FRD3 is connect with the collector of bridge arm switching tube Q3 on the described 4th, continues Stream diode FRD3 anode connect with the emitter of bridge arm switching tube Q3 on the described 4th, the cathode of freewheeling diode FRD4 and The collector of the 4th lower bridge arm switching tube Q4 connects, the anode of freewheeling diode FRD4 and the 4th lower bridge arm switching tube The emitter of Q4 connects, and the cathode of freewheeling diode FRD5 is connect with the collector of the PFC switching tube Q5, freewheeling diode The anode of FRD5 is connect with the emitter of the PFC switching tube Q5.Similarly, between the collector and emitter of other each switching tubes It is respectively connected with a freewheeling diode (not shown), details are not described herein again.

In the present embodiment, the connecting node of bridge arm switching tube Q1 and the first lower bridge arm switching tube Q2 on described first, Bridge arm switching tube in the connecting node and the third of bridge arm switching tube and the second lower bridge arm switching tube on described second Connect with the connecting node of the third lower bridge arm switching tube with outside first motor M1, on the described 4th bridge arm switching tube Q3 with The connecting node of the 4th lower bridge arm switching tube Q4, bridge arm switching tube and the 5th lower bridge arm switching tube on the described 5th The second electricity of connecting node and outside of bridge arm switching tube and the 6th lower bridge arm switching tube in connecting node and the described 6th Machine M2 connection.When the present embodiment intelligent power module 200 is applied to air conditioner (such as transducer air conditioning), the first motor M1 It can be the blower of air conditioner, the second motor M2 can be the compressor of air conditioner.

Further, the present embodiment intelligent power module 400 further include the first boostrap circuit (by figure diode D2, Resistance R9 and capacitor C1 composition), the second boostrap circuit (not shown), third boostrap circuit (not shown), the 4th boostrap circuit (by Diode D3, resistance R10 in figure and capacitor C2 composition), (figure is not for the 5th boostrap circuit (not shown) and the 6th boostrap circuit Show).

Specifically, the anode of the diode D2 in first boostrap circuit is first in first boostrap circuit It holds, the first end in first boostrap circuit is connect with the driving voltage input terminal VCC of the driver IC circuits 100, The cathode of the diode D2 is connect through resistance R9 with the upper bridge floating power voltage end VB4 of the driver IC circuits 100, described Upper bridge floating power voltage end VB4 is connect with the first end of capacitor C1, and the second end of the capacitor C1 is the first bootstrapping electricity Second end in road, second end in first boostrap circuit respectively with described first on bridge arm switching tube Q1 emitter and The collector of the first lower bridge arm switching tube Q2 connects, the second end of the capacitor C1 also with the driver IC circuits 100 Upper bridge floating power offset voltage end VS1 connection.

The first end of the second boostrap circuit (not shown) and the driving voltage input terminal of the driver IC circuits VCC connection, the emitter of bridge arm switching tube (not shown) and described in the second end of second boostrap circuit and described second The collector of second lower bridge arm switching tube (not shown) connects；

The first end of the third boostrap circuit (not shown) and the driving voltage input terminal of the driver IC circuits VCC connection, the second end of the third boostrap circuit and the emitter of bridge arm switching tube (not shown) in the third and described The collector of third lower bridge arm switching tube (not shown) connects；

The anode of diode D3 in 4th boostrap circuit is the first end in the 4th boostrap circuit, described the First end in four boostrap circuits is connect with the driving voltage input terminal VCC of the driver IC circuits 100, the diode The cathode of D3 is connect through resistance R10 with the upper bridge floating power voltage end VB1 of the driver IC circuits 100, and the upper bridge floats Supply voltage end VB1 is connect with the first end of capacitor C2, and the second end of the capacitor C2 is the in the 4th boostrap circuit Two ends, second end in the 4th boostrap circuit respectively with the described 4th on bridge arm switching tube Q3 emitter and the described 4th The collector of lower bridge arm switching tube Q4 connects, and the second end of the capacitor C2 is also floated with the upper bridge of the driver IC circuits 100 Power supply offset voltage end VS4 connection.

The first end of the 5th boostrap circuit (not shown) and the driving voltage input terminal of the driver IC circuits VCC connection, the emitter of bridge arm switching tube (not shown) and described in the second end and the described 5th of the 5th boostrap circuit The collector of 5th lower bridge arm switching tube (not shown) connects；

The first end of the 6th boostrap circuit (not shown) and the driving voltage input terminal of the driver IC circuits VCC connection, the emitter of bridge arm switching tube (not shown) and described in the second end and the described 6th of the 6th boostrap circuit The collector of 6th lower bridge arm switching tube (not shown) connects.

The present embodiment intelligent power module 400 is driven the first motor due to its internal described driver IC circuits 100 Dynamic circuit 101, second motor-drive circuit 102 and the PFC driving circuit 103 are all integrated in the same IC chip In so that the present embodiment intelligent power module 400 compared with the existing technology in intelligent power module, further increase intelligence The integrated level of power module, to reduce the cost of intelligent power module.Also, the present embodiment intelligent power module 400 is right External first motor M1, second motor M2 and PFC switching tube Q5 of outside etc. share a set of protection circuit 106, specifically, this implementation Example when the driving voltage input terminal VCC of the driver IC circuits 100 occurs under-voltage, in the protection circuit 106 described the Two under-voltage protecting circuits 1061 will export UVP signal to the false judgment logic circuit 107, and the present embodiment is when above-mentioned The current foldback circuit 1062 when overcurrent occurs for the either switch pipe in each switching tube, in the protection circuit 106 By output overcurrent protection signal to the false judgment logic circuit 107, when the temperature mistake of the present embodiment intelligent power module 400 Gao Shi, the thermal-shutdown circuit 1063 protected in circuit 106 will export overheat protector signal to the false judgment Logic circuit 107, the false judgment logic circuit 107 are receiving the UVP signal, the overcurrent protection signal Or/and when the overheat protector signal, then output error signal to the error signal output end FUALT, the error signal Output end FUALT is connect with peripheral control unit (not shown), when peripheral control unit receives the error signal, outside control Device then exports corresponding control signal to the driver IC circuits 100, to control the first motor driving circuit 101, described Two motor-drive circuits 102 and the PFC driving circuit 103 stop working, so control first motor M1, the second motor M2 and The PFC switching tube Q5 stops working.The present embodiment can be effectively prevented a side in discrete device and go wrong and lead to other The case where module works on improves intelligent power mould so as to preferably protect the present embodiment intelligent power module 400 The reliability of block 400.

In conclusion the present embodiment intelligent power module 400 uses the highly integrated driver IC circuits 100, and The present embodiment intelligent power module 400 shares a set of protection circuit 106, simplifies highly integrated intelligent power module (also referred to as high collection At IPM) internal structure, greatly improve the integrated level and reliability of intelligent power module, while also reducing cost, subtract Small volume；The present embodiment intelligent power module 400 also reduces intelligent power module internal wiring difficulty.The present embodiment intelligence Power module 400 has simple and reasonable, flexible operation, at low cost, high integration, high reliablity and applied widely excellent Point.

Also, the driving voltage of the present embodiment intelligent power module 400 suitable for the driver IC circuits 100 is defeated The voltage for entering to hold VCC is bridge arm switching tube Q1 on 15V and described first, bridge arm switching tube (not shown) on described second, described Bridge arm switching tube (not shown), the first lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown) in third And the third lower bridge arm switching tube (not shown) is Si base IGBT pipe, bridge arm switching tube Q3 on the described 4th, on the described 5th Bridge arm switching tube (not shown), bridge arm switching tube (not shown), the 4th lower bridge arm switching tube Q4, described on the described 6th Five lower bridge arm switching tube (not shown), the 6th lower bridge arm switching tube (not shown) and the PFC switching tube Q5 are SiC base The occasion of MOSFET pipe.Specifically, when the voltage of the driving voltage input terminal VCC in the driver IC circuits 100 is 15V When, the booster circuit 104 can carry out boosting processing to the 15V voltage of the driving voltage input terminal VCC, by 15V voltage Boosting is 18V-20V voltage, so that second motor-drive circuit 102 and the PFC driving circuit 103 be made to be suitable for driving The work of SiC base MOSFET pipe.

The present embodiment intelligent power module 400 is provided with the booster circuit 104, institute due to the driver IC circuits 100 Boosting processing can be carried out to the driving voltage input terminal VCC 15V voltage inputted by stating booster circuit 104, by 15V voltage Boosting is 18V-20V voltage, provides driving input electricity for second motor-drive circuit 102 and the PFC driving circuit 103 Pressure, to be driven for the SiC base MOSFET pipe being connect with the output end of second motor-drive circuit 102 and with the PFC The SiC base MOSFET pipe of the output end connection of dynamic circuit 103 provides suitable driving voltage, also, the driving voltage inputs The 15V voltage that end VCC is inputted can be directly used for the work of driving Si base IGBT pipe, i.e. the present embodiment intelligent power module 400 It can be achieved while providing the purpose of suitable driving voltage for SiC base device for power switching and Si base device for power switching, thus Meet while driving the requirement of Si base device for power switching and SiC base device for power switching.

Fig. 5 is the structural schematic diagram of the utility model intelligent power module second embodiment, together referring to Fig. 5, Fig. 2 and figure 4, the present embodiment intelligent power module 500 and the difference of the intelligent power module 400 in above-mentioned first embodiment are as follows:

Driver IC circuits in the present embodiment intelligent power module 500 are the driving IC of intelligent power module shown in Fig. 2 Circuit 200, the voltage of the driving voltage input terminal VCC in the present embodiment are 18V-20V, described first in the present embodiment It is upper bridge arm switching tube Q1, bridge arm switching tube (not shown) on described second, bridge arm switching tube (not shown) in the third, described First lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown) and the third lower bridge arm switching tube (not shown) For Si base IGBT pipe, bridge arm switching tube Q3 on the described 4th, bridge arm switching tube (not shown) on the described 5th, bridge on the described 6th Arm switch pipe (not shown), the 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube (not shown), the described 6th Lower bridge arm switching tube (not shown) and the PFC switching tube Q5 are SiC base MOSFET pipe.That is the present embodiment intelligent power module The voltage of the 500 driving voltage input terminal VCC suitable for the driver IC circuits 100 is 18V-20V, and described first It is upper bridge arm switching tube Q1, bridge arm switching tube (not shown) on described second, bridge arm switching tube (not shown) in the third, described First lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown) and the third lower bridge arm switching tube (not shown) For Si base IGBT pipe, bridge arm switching tube Q3 on the described 4th, bridge arm switching tube (not shown) on the described 5th, bridge on the described 6th Arm switch pipe (not shown), the 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube (not shown), the described 6th Lower bridge arm switching tube (not shown) and the PFC switching tube Q5 are the occasion of SiC base MOSFET pipe.

In the circuit connection structure of other components in the present embodiment intelligent power module 500 and above-mentioned first embodiment The intelligent power module 400 it is identical, details are not described herein again.

The present embodiment intelligent power module 500 simplifies high collection due to using the highly integrated driver IC circuits 200 At the internal structure of intelligent power module (also referred to as highly integrated IPM), greatly improve intelligent power module integrated level and can By property, while cost is also reduced, reduces volume；The present embodiment intelligent power module 500 also reduces intelligent power module Internal wiring difficulty.The present embodiment intelligent power module 500 has simple and reasonable, flexible operation, at low cost, highly integrated Degree, high reliablity and advantage applied widely.Also, the present embodiment intelligent power module 500 is due to the driver IC circuits 200 are provided with the reduction voltage circuit 104 ', what the reduction voltage circuit 104 ' can input the driving voltage input terminal VCC 18V-20V voltage carries out decompression processing, is 15V voltage by 18V-20V voltage step-down, is the first motor driving circuit 101 Driving input voltage is provided, to provide for the Si base IGBT pipe connecting with the output end of the first motor driving circuit 101 Suitable driving voltage, the 18V-20V voltage that the driving voltage input terminal VCC is inputted can be directly used for driving SiC base The work of MOSFET pipe, i.e. the present embodiment intelligent power module 500 equally can be achieved while being SiC base device for power switching and Si Base device for power switching provides the purpose of suitable driving voltage, thus meet and meanwhile drive Si base device for power switching and The requirement of SiC base device for power switching.

Fig. 6 is the structural schematic diagram of the utility model intelligent power module 3rd embodiment, together referring to Fig. 6, Fig. 3 and figure 4, being distinguished as the intelligent power module 400 in the present embodiment intelligent power module 600 and above-mentioned first embodiment is as follows:

Driver IC circuits in the present embodiment intelligent power module 600 are the driving IC of intelligent power module shown in Fig. 3 Circuit 300, the voltage of the driving voltage input terminal VCC in the present embodiment are 15V, bridge on described first in the present embodiment Arm switch pipe Q1, bridge arm switching tube (not shown) on described second, bridge arm switching tube (not shown), described first in the third It is lower bridge arm switching tube Q2, the second lower bridge arm switching tube (not shown), the third lower bridge arm switching tube (not shown), described Bridge arm switching tube Q3 on 4th, bridge arm switching tube (not shown) on the described 5th, bridge arm switching tube (not shown) on the described 6th, The 4th lower bridge arm switching tube Q4, the 5th lower bridge arm switching tube (not shown) and the 6th lower bridge arm switching tube (figure Do not show) it is managed for Si base IGBT, the PFC switching tube Q5 is SiC base MOSFET pipe.I.e. the present embodiment intelligent power module 600 is suitable Voltage for the driving voltage input terminal VCC is 15V, and bridge arm switching tube Q1 on described first, bridge arm on described second In switching tube (not shown), the third under bridge arm switching tube (not shown), the first lower bridge arm switching tube Q2, described second Bridge arm switching tube (not shown), the third lower bridge arm switching tube (not shown), bridge arm switching tube Q3, described on the described 4th Bridge arm switching tube (not shown) on five, bridge arm switching tube (not shown), the 4th lower bridge arm switching tube Q4, institute on the described 6th The 5th lower bridge arm switching tube (not shown) and the 6th lower bridge arm switching tube (not shown) are stated as Si base IGBT pipe, the PFC Switching tube Q5 is the occasion of SiC base MOSFET pipe.

The present embodiment intelligent power module 600 simplifies high collection due to using the highly integrated driver IC circuits 300 At the internal structure of intelligent power module (also referred to as highly integrated IPM), greatly improve intelligent power module integrated level and can By property, while cost is also reduced, reduces volume；The present embodiment intelligent power module 600 also reduces intelligent power module Internal wiring difficulty.The present embodiment intelligent power module 600 has simple and reasonable, flexible operation, at low cost, highly integrated Degree, high reliablity and advantage applied widely.Also, the present embodiment intelligent power module 600 is due to the driver IC circuits 300 are provided with the booster circuit 104, what the booster circuit 104 can input the driving voltage input terminal VCC 15V voltage carries out boosting processing, is 18V-20V voltage by 15V boost in voltage, and it is defeated to provide driving for the PFC driving circuit 103 Enter voltage, so that the SiC base MOSFET pipe to connect with the output end of the PFC driving circuit 103 provides suitable driving electricity Pressure, the 15V voltage that the driving voltage input terminal VCC is inputted can be directly used for the work of driving Si base IGBT pipe, i.e. this reality Applying an intelligent power module 600 equally can be achieved while providing conjunction for SiC base device for power switching and Si base device for power switching The purpose of suitable driving voltage, to meet while drive wanting for Si base device for power switching and SiC base device for power switching It asks.

The utility model also provides a kind of air conditioner, which includes intelligent power module, the intelligent power module Structure can refer to above-described embodiment, and details are not described herein.Naturally, since the air conditioner of the present embodiment uses above-mentioned intelligence The technical solution of energy power module, therefore the beneficial effect that the air conditioner has above-mentioned intelligent power module all.

The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims

1. a kind of driver IC circuits of intelligent power module, which is characterized in that the driver IC circuits include driving voltage input End, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control signal input, first motor are driven Dynamic circuit, the second motor-drive circuit, PFC driving circuit and booster circuit；Wherein:

The first motor driving circuit, for being inputted according to the upper bridge control signal input control signal driving with The work of upper bridge arm switching tube corresponding to external first motor, and inputted according to the lower bridge control signal input Control signal, the work of driving and lower bridge arm switching tube corresponding to external first motor；

Second motor-drive circuit, for being inputted according to the upper bridge control signal input control signal driving with The work of upper bridge arm switching tube corresponding to external second motor, and inputted according to the lower bridge control signal input Control signal, the work of driving and lower bridge arm switching tube corresponding to external second motor；

The PFC driving circuit, the control signal for being inputted according to the PFC control signal input drive external PFC The work of switching tube；

The driving voltage input terminal for providing driving input voltage for the first motor driving circuit, and is described Booster circuit provides input voltage；

The booster circuit, the voltage for being inputted to the driving voltage input terminal carry out boosting processing, are described second Motor-drive circuit and the PFC driving circuit provide driving input voltage；

The upper bridge control corresponding in multiple upper bridge control signal inputs of the input terminal of the first motor driving circuit Corresponding lower bridge control signal input connection in signal input part and multiple lower bridge control signal inputs, described first The output end of motor-drive circuit and with the control terminal of upper bridge arm switching tube corresponding to external first motor and with outside first The control terminal of lower bridge arm switching tube corresponding to motor connects；

The upper bridge control corresponding in multiple upper bridge control signal inputs of the input terminal of second motor-drive circuit Corresponding lower bridge control signal input connection in signal input part and multiple lower bridge control signal inputs, described second The output end of motor-drive circuit and with the control terminal of upper bridge arm switching tube corresponding to external second motor and with outside second The control terminal of lower bridge arm switching tube corresponding to motor connects；

The input terminal of the PFC driving circuit is connect with the PFC control signal input, the output of the PFC driving circuit End is connect with the control terminal of the PFC switching tube；

The input terminal of the booster circuit is connect with the driving voltage input terminal, the output end of the booster circuit respectively with institute State the driving voltage input terminal connection of the driving voltage input terminal and the PFC driving circuit of the second motor-drive circuit.

2. the driver IC circuits of intelligent power module as described in claim 1, which is characterized in that the driver IC circuits are also wrapped Include the first under-voltage protecting circuit that under-voltage protection is carried out for the output end to the booster circuit, the first under-voltage protection electricity The input terminal on road is connect with the output end of the booster circuit, and the output end of first under-voltage protecting circuit is respectively with described Two motor-drive circuits and PFC driving circuit connection.

3. the driver IC circuits of intelligent power module as claimed in claim 1 or 2, which is characterized in that the driver IC circuits It further include enable end, error signal output end, protection circuit, false judgment logic circuit and driving logic circuit；Wherein:

The protection circuit, for exporting UVP signal when the driving voltage input terminal occurs under-voltage to the mistake Decision logic circuit, when overcurrent occurs for the either switch pipe in each switching tube, output overcurrent protects signal to the mistake Decision logic circuit and when the intelligent power module occur excess temperature when output overheat protector signal to the false judgment patrol Collect circuit；

The false judgment logic circuit, for receiving the UVP signal, the overcurrent protection signal or/and institute When stating overheat protector signal, output error signal to the error signal output end；

The driving logic circuit, for not exporting the error signal and the enable end in the false judgment logic circuit When inputting enable signal, output open signal to the first motor driving circuit, the second motor-drive circuit and PFC drives electricity Road is started to work with controlling the first motor driving circuit, the second motor-drive circuit and the PFC driving circuit；

The input terminal of the protection circuit is exported with the electric current of the driving voltage input terminal, each lower bridge arm switching tube respectively The connection of the temperature sensing circuit of end and outside, the output end of the protection circuit and the input terminal of the false judgment logic circuit Connection, the output end of the false judgment logic circuit are connect with the error signal output end, the driving logic circuit Input terminal is connect with the enable end and the false judgment logic circuit respectively, the output end difference of the driving logic circuit It is connect with the first motor driving circuit, the second motor-drive circuit and the PFC driving circuit.

4. the driver IC circuits of intelligent power module as claimed in claim 3, which is characterized in that the protection circuit includes the Two under-voltage protecting circuits, current foldback circuit and thermal-shutdown circuit；Wherein:

Second under-voltage protecting circuit, for exporting UVP signal extremely when the driving voltage input terminal occurs under-voltage The false judgment logic circuit；

The current foldback circuit, for the output overcurrent protection letter when overcurrent occurs for the either switch pipe in each switching tube Number to the false judgment logic circuit；

The thermal-shutdown circuit, for exporting overheat protector signal when excess temperature occurs for the intelligent power module to the mistake Erroneous judgement logic circuit；

The input terminal of second under-voltage protecting circuit is connect with the driving voltage input terminal, the current foldback circuit it is defeated Enter end to connect with the current output terminal of each lower bridge arm switching tube respectively, input terminal and the outside of the thermal-shutdown circuit Temperature sensing circuit connection, the output end of second under-voltage protecting circuit, the output end of the current foldback circuit and The output end of the thermal-shutdown circuit is connect with the input terminal of the false judgment logic circuit.

5. a kind of driver IC circuits of intelligent power module, which is characterized in that the driver IC circuits include driving voltage input End, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control signal input, first motor are driven Dynamic circuit, the second motor-drive circuit, PFC driving circuit and reduction voltage circuit；Wherein:

The driving voltage input terminal, it is defeated for providing driving for second motor-drive circuit and the PFC driving circuit Enter voltage, and provides input voltage for the reduction voltage circuit；

The reduction voltage circuit, the voltage for being inputted to the driving voltage input terminal carry out decompression processing, are described first Motor-drive circuit provides driving input voltage.

6. the driver IC circuits of intelligent power module as claimed in claim 5, which is characterized in that the first motor driving electricity The input terminal on road upper bridge control signal input corresponding in multiple upper bridge control signal inputs and it is multiple it is described under Corresponding lower bridge control signal input connection in bridge control signal input, the output end of the first motor driving circuit and It is switched with the control terminal of upper bridge arm switching tube corresponding to external first motor and with lower bridge arm corresponding to external first motor The control terminal of pipe connects；

The input terminal of the reduction voltage circuit is connect with the driving voltage input terminal, the output end of the reduction voltage circuit and described the The driving voltage input terminal of one motor-drive circuit connects.

7. the driver IC circuits of intelligent power module as claimed in claim 6, which is characterized in that the driver IC circuits are also wrapped Include the third under-voltage protecting circuit that under-voltage protection is carried out for the output end to the reduction voltage circuit, the third under-voltage protection electricity The input terminal on road is connect with the output end of the reduction voltage circuit, the output end of the third under-voltage protecting circuit and first electricity Drive circuit connection.

8. a kind of driver IC circuits of intelligent power module, which is characterized in that the driver IC circuits include driving voltage input End, multiple upper bridge control signal inputs, multiple lower bridge control signal inputs, PFC control signal input, first motor are driven Dynamic circuit, the second motor-drive circuit, PFC driving circuit and booster circuit；Wherein:

The driving voltage input terminal, for providing drive for the first motor driving circuit and second motor-drive circuit Dynamic input voltage, and input voltage is provided for the booster circuit；

The booster circuit, the voltage for being inputted to the driving voltage input terminal carry out boosting processing, drive for the PFC Dynamic circuit provides driving input voltage.

9. the driver IC circuits of intelligent power module as claimed in claim 8, which is characterized in that the first motor driving electricity The input terminal on road upper bridge control signal input corresponding in multiple upper bridge control signal inputs and it is multiple it is described under Corresponding lower bridge control signal input connection in bridge control signal input, the output end of the first motor driving circuit and It is switched with the control terminal of upper bridge arm switching tube corresponding to external first motor and with lower bridge arm corresponding to external first motor The control terminal of pipe connects；

The input terminal of the booster circuit is connect with the driving voltage input terminal, the output end of the booster circuit with it is described The driving voltage input terminal of PFC driving circuit connects.

10. the driver IC circuits of intelligent power module as claimed in claim 9, which is characterized in that the driver IC circuits are also The first under-voltage protecting circuit including carrying out under-voltage protection for the output end to the booster circuit, first under-voltage protection The input terminal of circuit is connect with the output end of the booster circuit, the output end and the PFC of first under-voltage protecting circuit Driving circuit connection.

11. a kind of intelligent power module, which is characterized in that the intelligent power module include PFC switching tube, multiple resistance, with Bridge arm switching tube on first corresponding to external first motor, bridge arm switching tube on second, bridge arm switching tube, the first lower bridge in third Arm switch pipe, the second lower bridge arm switching tube and third lower bridge arm switching tube, with the 4th corresponding to external second motor on bridge arm open Guan Guan, bridge arm switching tube on the 5th, bridge arm switching tube, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube and on the 6th The driver IC circuits of six lower bridge arm switching tubes and intelligent power module described in any one of Claims 1-4；Wherein:

Bridge output end is through the resistance and described first on first of first motor driving circuit in the driver IC circuits The control terminal of upper bridge arm switching tube connects, the first motor driving circuit second on bridge output end through the resistance and institute The control terminal connection of bridge arm switching tube on second is stated, bridge output end is through an electricity in the third of the first motor driving circuit Resistance is connect with the control terminal of bridge arm switching tube in the third；The lower bridge output end of the first of the first motor driving circuit is through one The resistance is connect with the control terminal of the first lower bridge arm switching tube, the lower bridge output of the second of the first motor driving circuit End is connect through the resistance with the control terminal of the second lower bridge arm switching tube, under the third of the first motor driving circuit Bridge output end is connect through the resistance with the control terminal of the third lower bridge arm switching tube；

Bridge output end is through the resistance and the described 4th on first of the second motor-drive circuit in the driver IC circuits The control terminal of upper bridge arm switching tube connects, second motor-drive circuit second on bridge output end through the resistance and institute The control terminal connection of bridge arm switching tube on the 5th is stated, bridge output end is through an electricity in the third of second motor-drive circuit Resistance is connect with the control terminal of bridge arm switching tube on the described 6th；The lower bridge output end of the first of second motor-drive circuit is through one The resistance is connect with the control terminal of the 4th lower bridge arm switching tube, the lower bridge output of the second of second motor-drive circuit End is connect through the resistance with the control terminal of the 5th lower bridge arm switching tube, under the third of second motor-drive circuit Bridge output end is connect through the resistance with the control terminal of the 6th lower bridge arm switching tube；

Control terminal of the output end of PFC driving circuit in the driver IC circuits through the resistance Yu the PFC switching tube Connection.

12. intelligent power module as claimed in claim 11, which is characterized in that the intelligent power module further includes the first electricity Flow sampling resistor, the second current sampling resistor and third current sampling resistor；Wherein:

The first end of first current sampling resistor is connect with the current output terminal of the PFC switching tube, second electric current The first end of sampling resistor respectively with bridge under the first lower bridge arm switching tube, the second lower bridge arm switching tube and the third The current output terminal of arm switch pipe connects, and the first end of the third current sampling resistor is switched with the 4th lower bridge arm respectively The current output terminal connection of pipe, the 5th lower bridge arm switching tube and the 6th lower bridge arm switching tube, first electric current are adopted Second termination of the second end of sample resistance, the second end of second current sampling resistor and the third current sampling resistor Ground；First input end of the first end of first current sampling resistor also with the current foldback circuit in the driver IC circuits Connection, the first end of second current sampling resistor are also inputted with second of the current foldback circuit in the driver IC circuits End connection, the first end of the third current sampling resistor are also defeated with the third of the current foldback circuit in the driver IC circuits Enter end connection.

13. intelligent power module as claimed in claim 12, which is characterized in that the intelligent power module further includes for examining Survey the temperature sensing circuit of the temperature of the intelligent power module, the mistake in the temperature sensing circuit and the driver IC circuits The input terminal connection of temperature protection circuit.

14. intelligent power module described in any one of claim 12 to 13, which is characterized in that bridge arm is opened on described first Guan Guan, bridge arm switching tube on described second, bridge arm switching tube, the first lower bridge arm switching tube, described second in the third Lower bridge arm switching tube and the third lower bridge arm switching tube are Si base IGBT pipe, bridge arm switching tube, the described 5th on the described 4th Upper bridge arm switching tube, bridge arm switching tube on the described 6th, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube, The 6th lower bridge arm switching tube and the PFC switching tube are SiC base MOSFET pipe.

15. intelligent power module as claimed in claim 14, which is characterized in that the intelligent power module further includes first high Pressure area power supply input terminal, the second higher-pressure region power supply input terminal, multiple freewheeling diodes, PFC signal output end and One diode；Wherein:

The collector of bridge arm switching tube on described first, the collector of bridge arm switching tube on second, bridge arm switch in the third The collector of pipe, the collector of bridge arm switching tube on the 4th, the collector of bridge arm switching tube on the 5th, bridge arm is opened on the described 6th Close pipe collector connect with the first higher-pressure region power supply input terminal, on described first the emitter of bridge arm switching tube and The collector of the first lower bridge arm switching tube connects, the emitter of bridge arm switching tube and second lower bridge arm on described second The collector of switching tube connects, the collector of the emitter of bridge arm switching tube and the third lower bridge arm switching tube in the third It connecting, the emitter of bridge arm switching tube is connect with the collector of the 4th lower bridge arm switching tube on the described 4th, and the described 5th The emitter of upper bridge arm switching tube is connect with the collector of the 5th lower bridge arm switching tube, bridge arm switching tube on the described 6th Emitter is connect with the collector of the 6th lower bridge arm switching tube；The emitter of the first lower bridge arm switching tube, described The emitter of the emitter of two lower bridge arm switching tubes and the third lower bridge arm switching tube and second current sampling resistor First end connection, the emitter of the 4th lower bridge arm switching tube, the emitter of the 5th lower bridge arm switching tube and described the The emitter of six lower bridge arm switching tubes is connect with the first end of the third current sampling resistor；The current collection of the PFC switching tube Pole is connect with the anode of the PFC signal output end and the first diode respectively, the cathode of the first diode and institute State the connection of the second higher-pressure region power supply input terminal, the emitter of the PFC switching tube and first current sampling resistor First end connection；A freewheeling diode is connected between the collector and emitter of each switching tube；

The connecting node of bridge arm switching tube and the first lower bridge arm switching tube on described first, bridge arm switching tube on described second It is switched with bridge arm switching tube in the connecting node and the third of the second lower bridge arm switching tube and the third lower bridge arm The connecting node of pipe is connect with external first motor, the company of bridge arm switching tube and the 4th lower bridge arm switching tube on the described 4th Connect node, bridge arm in the connecting node and the described 6th of bridge arm switching tube and the 5th lower bridge arm switching tube on the described 5th Switching tube is connect with the connecting node of the 6th lower bridge arm switching tube with external second motor.

16. intelligent power module as claimed in claim 15, which is characterized in that the intelligent power module further include first from Lift circuit, the second boostrap circuit, third boostrap circuit, the 4th boostrap circuit, the 5th boostrap circuit and the 6th boostrap circuit；Its In:

The first end of first boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, and described first The collector of the emitter of bridge arm switching tube and the first lower bridge arm switching tube in the second end of boostrap circuit and described first Connection；

The first end of second boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, and described second The collector of the emitter of bridge arm switching tube and the second lower bridge arm switching tube in the second end of boostrap circuit and described second Connection；

The first end of the third boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, the third The emitter of bridge arm switching tube and the collector of the third lower bridge arm switching tube in the second end of boostrap circuit and the third Connection；

The first end of 4th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, and the described 4th The collector of the emitter of bridge arm switching tube and the 4th lower bridge arm switching tube in the second end of boostrap circuit and the described 4th Connection；

The first end of 5th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, and the described 5th The collector of the emitter of bridge arm switching tube and the 5th lower bridge arm switching tube in the second end of boostrap circuit and the described 5th Connection；

The first end of 6th boostrap circuit is connect with the driving voltage input terminal of the driver IC circuits, and the described 6th The collector of the emitter of bridge arm switching tube and the 6th lower bridge arm switching tube in the second end of boostrap circuit and the described 6th Connection.

17. a kind of intelligent power module, which is characterized in that the intelligent power module include PFC switching tube, multiple resistance, with Bridge arm switching tube on first corresponding to external first motor, bridge arm switching tube on second, bridge arm switching tube, the first lower bridge in third Arm switch pipe, the second lower bridge arm switching tube and third lower bridge arm switching tube, with the 4th corresponding to external second motor on bridge arm open Guan Guan, bridge arm switching tube on the 5th, bridge arm switching tube, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube and on the 6th The driver IC circuits of intelligent power module described in any one of six lower bridge arm switching tubes and claim 5 to 7；Wherein:

18. intelligent power module as claimed in claim 17, which is characterized in that bridge arm switching tube, described on described first Bridge arm switching tube on two, bridge arm switching tube, the first lower bridge arm switching tube, the second lower bridge arm switching tube in the third And the third lower bridge arm switching tube is Si base IGBT pipe, bridge arm switching tube on the described 4th, bridge arm switching tube on the described 5th, Bridge arm switching tube, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube, the 6th lower bridge arm on described 6th Switching tube and the PFC switching tube are SiC base MOSFET pipe.

19. a kind of intelligent power module, which is characterized in that the intelligent power module include PFC switching tube, multiple resistance, with Bridge arm switching tube on first corresponding to external first motor, bridge arm switching tube on second, bridge arm switching tube, the first lower bridge in third Arm switch pipe, the second lower bridge arm switching tube and third lower bridge arm switching tube, with the 4th corresponding to external second motor on bridge arm open Guan Guan, bridge arm switching tube on the 5th, bridge arm switching tube, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube and on the 6th The driver IC circuits of intelligent power module described in any one of six lower bridge arm switching tubes and claim 8 to 10；Wherein:

20. intelligent power module as claimed in claim 19, which is characterized in that bridge arm switching tube, described on described first Bridge arm switching tube on two, bridge arm switching tube, the first lower bridge arm switching tube, second lower bridge arm switch in the third Pipe, the third lower bridge arm switching tube, bridge arm switching tube on the described 4th, bridge arm switching tube on the described 5th, on the described 6th Bridge arm switching tube, the 4th lower bridge arm switching tube, the 5th lower bridge arm switching tube and the 6th lower bridge arm switching tube are Si base IGBT pipe, the PFC switching tube are SiC base MOSFET pipe.

21. a kind of air conditioner, which is characterized in that the air conditioner includes intelligent power module, and the intelligent power module is power Benefit require any one of 11 to 16 described in intelligent power mould described in any one of intelligent power module, claim 17 to 18 Intelligent power module described in any one of block or claim 19 to 20.