CN110752788A - Drive IC circuit of intelligent power module, intelligent power module and air conditioner - Google Patents
Drive IC circuit of intelligent power module, intelligent power module and air conditioner Download PDFInfo
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- CN110752788A CN110752788A CN201810832385.6A CN201810832385A CN110752788A CN 110752788 A CN110752788 A CN 110752788A CN 201810832385 A CN201810832385 A CN 201810832385A CN 110752788 A CN110752788 A CN 110752788A
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- switching tube
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/09—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against over-voltage; against reduction of voltage; against phase interruption
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Abstract
The invention discloses a driving IC circuit of an intelligent power module, the intelligent power module and an air conditioner, wherein the driving IC circuit of the intelligent power module comprises a logic input buffer circuit, a first upper bridge driving circuit, a second upper bridge driving circuit, a first lower bridge driving circuit, a second lower bridge driving circuit and a PFC driving circuit; the first upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external first motor to work; the first lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external first motor to work; the second upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external second motor to work; the second lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external second motor to work; the PFC driving circuit is used for driving an external PFC switching tube to work. The invention improves the integration level of the intelligent power module.
Description
Technical Field
The invention relates to the field of intelligent power modules, in particular to a driving IC circuit of an intelligent power module, the intelligent power module and an air conditioner.
Background
An intelligent Power module, i.e., ipm (intelligent Power module), is a Power driving product combining Power electronics and integrated circuit technology. The intelligent power module integrates a power switch device and a high-voltage driving circuit and is internally provided with fault detection circuits such as overvoltage, overcurrent and overheat. The intelligent power module receives a control signal of the MCU to drive a subsequent circuit to work on one hand, and sends a state detection signal of the system back to the MCU on the other hand. Compared with the traditional discrete scheme, the intelligent power module wins a bigger and bigger market with the advantages of high integration degree, high reliability and the like, is particularly suitable for a frequency converter of a driving motor and various inverter power supplies, and is an ideal power electronic device for variable-frequency speed regulation, metallurgical machinery, electric traction, servo drive and variable-frequency household appliances.
The IPM is widely applied to the air conditioner, the existing inverter air conditioner comprises a fan, a compressor and a PFC module, and the fan, the compressor and the PFC module of the existing inverter air conditioner are usually driven by three separate IPMs, so that the inverter air conditioner has high electric control manufacturing cost and low reliability, and the wiring difficulty of a circuit system is also high. With the continuous increase of the using amount of the variable frequency air conditioner, the failure case of the variable frequency air conditioner is increased, and the failure reason of the variable frequency air conditioner in the prior art is usually due to the failure of a driving system of the variable frequency air conditioner; in addition, the inverter air conditioner is relatively expensive compared to the fixed frequency air conditioner, how to reduce the manufacturing cost of the driving system of the inverter air conditioner becomes an important research topic, and high integration, miniaturization and cost reduction are the development trend of the IPM of the inverter air conditioner in the future. A plurality of parts of 5 parts including a control chip MCU, a rectifier bridge, a part of active PFC, a compressor IPM and a fan IPM on a frequency conversion plate of a traditional frequency conversion air conditioner are integrated into a module, namely the high-integration IPM. However, the existing high-integration IPM of the inverter air conditioner simply integrates the driving circuit of the fan and the driving circuit of the compressor, and the internal structure of the inverter air conditioner is similar to the simple superposition of the driving circuit of the fan and the driving circuit of the compressor, and the high integration and miniaturization are not realized in the true sense, so how to further optimize the high-integration IPM of the air conditioner is a problem to be solved urgently.
Disclosure of Invention
The present invention is directed to a driving IC circuit of an intelligent power module, and aims to further improve the integration level of the intelligent power module, so as to reduce the cost of the intelligent power module and improve the reliability of the intelligent power module.
In order to achieve the above object, the present invention provides a driving IC circuit of an intelligent power module, the driving IC circuit includes an upper bridge control signal input terminal, a lower bridge control signal input terminal, a PFC control signal input terminal, a logic input buffer circuit, a first upper bridge driving circuit, a second upper bridge driving circuit, a first lower bridge driving circuit, a second lower bridge driving circuit, and a PFC driving circuit; wherein:
the logic input buffer circuit is used for performing wave shaping filtering processing on the control signals input by the upper bridge control signal input end, the lower bridge control signal input end and the PFC control signal input end, and correspondingly outputting the control signals subjected to the wave shaping filtering processing to the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit;
the first upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external first motor to work according to the control signal output by the logic input buffer circuit;
the first lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external first motor to work according to the control signal output by the logic input buffer circuit;
the second upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external second motor to work according to the control signal output by the logic input buffer circuit;
the second lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external second motor to work according to the control signal output by the logic input buffer circuit;
and the PFC driving circuit is used for driving an external PFC switching tube to work according to the control signal output by the logic input buffer circuit.
Preferably, the driving IC circuit further includes an enable terminal, an error signal output terminal, a protection circuit, an error judgment logic circuit, and a driving logic circuit; wherein:
the protection circuit is used for outputting a first undervoltage protection signal to the error judgment logic circuit when undervoltage occurs at the input end of the low-voltage side power supply of the drive IC circuit, outputting an overcurrent protection signal to the error judgment logic circuit when any one of the switching tubes is in overcurrent, and outputting an overtemperature protection signal to the error judgment logic circuit when the intelligent power module is in overtemperature;
the error judgment logic circuit is used for outputting an error signal to the error signal output end when receiving the first undervoltage protection signal, the overcurrent protection signal or/and the overtemperature protection signal;
and the driving logic circuit is used for outputting a starting signal to the logic input buffer circuit when the error judging logic circuit does not output the error signal and the enabling end inputs an enabling signal so as to control the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit to start working.
Preferably, the protection circuit comprises a low-voltage side undervoltage protection circuit, an overcurrent protection circuit and an overtemperature protection circuit; wherein:
the low-voltage side undervoltage protection circuit is used for outputting a first undervoltage protection signal to the error judgment logic circuit when the input end of the low-voltage side power supply of the drive IC circuit is undervoltage;
the overcurrent protection circuit is used for outputting an overcurrent protection signal to the error judgment logic circuit when any one of the switching tubes is in overcurrent;
and the over-temperature protection circuit is used for outputting an over-temperature protection signal to the error judgment logic circuit when the intelligent power module is over-temperature.
Preferably, the driving IC circuit further includes:
and the high-voltage side under-voltage protection circuit is used for outputting a second under-voltage protection signal to the logic input buffer circuit when the input end of the high-voltage side power supply of the drive IC circuit is under-voltage so as to control the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit to stop working.
In addition, in order to achieve the above object, the present invention further provides an intelligent power module, where the intelligent power module includes a PFC switching tube, a plurality of resistors, a first upper bridge arm switching tube, a second upper bridge arm switching tube, a third upper bridge arm switching tube, a first lower bridge arm switching tube, a second lower bridge arm switching tube, a third lower bridge arm switching tube corresponding to an external first motor, a fourth upper bridge arm switching tube, a fifth upper bridge arm switching tube, a sixth upper bridge arm switching tube, a fourth lower bridge arm switching tube, a fifth lower bridge arm switching tube, and a sixth lower bridge arm switching tube corresponding to an external second motor, and the driving IC circuit of the intelligent power module; wherein:
a first output end of a first upper bridge driving circuit in the driving IC circuit is connected with a control end of the first upper bridge arm switching tube through a resistor, a second output end of the first upper bridge driving circuit is connected with a control end of the second upper bridge arm switching tube through a resistor, and a third output end of the first upper bridge driving circuit is connected with a control end of the third upper bridge arm switching tube through a resistor; a first output end of a first lower bridge driving circuit in the driving IC circuit is connected with a control end of the first lower bridge arm switching tube through a resistor, a second output end of the first lower bridge driving circuit is connected with a control end of the second lower bridge arm switching tube through a resistor, and a third output end of the first lower bridge driving circuit is connected with a control end of the third lower bridge arm switching tube through a resistor;
a first output end of a second upper bridge driving circuit in the driving IC circuit is connected with a control end of the fourth upper bridge arm switching tube through a resistor, a second output end of the second upper bridge driving circuit is connected with a control end of the fifth upper bridge arm switching tube through a resistor, and a third output end of the second upper bridge driving circuit is connected with a control end of the sixth upper bridge arm switching tube through a resistor; a first output end of a second lower bridge driving circuit in the driving IC circuit is connected with a control end of the fourth lower bridge arm switching tube through a resistor, a second output end of the second lower bridge driving circuit is connected with a control end of the fifth lower bridge arm switching tube through a resistor, and a third output end of the second lower bridge driving circuit is connected with a control end of the sixth lower bridge arm switching tube through a resistor;
the output end of a PFC driving circuit in the driving IC circuit is connected with the control end of the PFC switching tube through the resistor.
Preferably, the intelligent power module further comprises a first current sampling resistor, a second current sampling resistor and a third current sampling resistor; wherein:
a first end of the first current sampling resistor is connected with a current output end of the PFC switch tube, a first end of the second current sampling resistor is respectively connected with current output ends of the first lower bridge arm switch tube, the second lower bridge arm switch tube and the third lower bridge arm switch tube, a first end of the third current sampling resistor is respectively connected with current output ends of the fourth lower bridge arm switch tube, the fifth lower bridge arm switch tube and the sixth lower bridge arm switch tube, and a second end of the first current sampling resistor, a second end of the second current sampling resistor and a second end of the third current sampling resistor are grounded; the first end of the first current sampling resistor is further connected with a first input end of the overcurrent protection circuit in the drive IC circuit, the first end of the second current sampling resistor is further connected with a second input end of the overcurrent protection circuit in the drive IC circuit, and the first end of the third current sampling resistor is further connected with a third input end of the overcurrent protection circuit in the drive IC circuit.
Preferably, the intelligent power module further comprises a temperature detection circuit for detecting the temperature of the intelligent power module, and the temperature detection circuit is connected with the input end of the over-temperature protection circuit in the drive IC circuit.
Preferably, the PFC switch tube, the first upper bridge arm switch tube, the second upper bridge arm switch tube, the third upper bridge arm switch tube, the first lower bridge arm switch tube, the second lower bridge arm switch tube, the third lower bridge arm switch tube, the fourth upper bridge arm switch tube, the fifth upper bridge arm switch tube, the sixth upper bridge arm switch tube, the fourth lower bridge arm switch tube, the fifth lower bridge arm switch tube, and the sixth lower bridge arm switch tube are IGBT tubes.
Preferably, the intelligent power module further comprises a first high-voltage area power supply input end, a second high-voltage area power supply input end, a plurality of freewheeling diodes, a PFC signal output end and a first diode; wherein:
a collector of the first upper bridge arm switching tube, a collector of the second upper bridge arm switching tube, a collector of the third upper bridge arm switching tube, a collector of the fourth upper bridge arm switching tube, a collector of the fifth upper bridge arm switching tube, and a collector of the sixth upper bridge arm switching tube are connected with the input end of the first high-voltage region power supply, an emitter of the first upper bridge arm switching tube is connected with the collector of the first lower bridge arm switching tube, an emitter of the second upper bridge arm switching tube is connected with the collector of the second lower bridge arm switching tube, an emitter of the third upper bridge arm switching tube is connected with the collector of the third lower bridge arm switching tube, an emitter of the fourth upper bridge arm switching tube is connected with the collector of the fourth lower bridge arm switching tube, and an emitter of the fifth upper bridge arm switching tube is connected with the collector of the fifth lower bridge arm switching tube, an emitter of the sixth upper bridge arm switching tube is connected with a collector of the sixth lower bridge arm switching tube; the emitter of the first lower bridge arm switching tube, the emitter of the second lower bridge arm switching tube and the emitter of the third lower bridge arm switching tube are connected with the first end of the second current sampling resistor, and the emitter of the fourth lower bridge arm switching tube, the emitter of the fifth lower bridge arm switching tube and the emitter of the sixth lower bridge arm switching tube are connected with the first end of the third current sampling resistor; a collector of the PFC switch tube is respectively connected with the PFC signal output end and an anode of the first diode, a cathode of the first diode is connected with an input end of the second high-voltage area power supply, and an emitter of the PFC switch tube is connected with a first end of the first current sampling resistor; a freewheeling diode is connected between the collector and the emitter of each switching tube;
the connection node of the first upper bridge arm switching tube and the first lower bridge arm switching tube, the connection node of the second upper bridge arm switching tube and the second lower bridge arm switching tube, and the connection node of the third upper bridge arm switching tube and the third lower bridge arm switching tube are connected with an external first motor, and the connection node of the fourth upper bridge arm switching tube and the fourth lower bridge arm switching tube, the connection node of the fifth upper bridge arm switching tube and the fifth lower bridge arm switching tube, and the connection node of the sixth upper bridge arm switching tube and the sixth lower bridge arm switching tube are connected with an external second motor.
In addition, in order to achieve the above object, the present invention further provides an air conditioner, which includes the intelligent power module as described above.
The driving IC circuit of the intelligent power module integrates a first upper bridge driving circuit for driving an upper bridge arm switching tube corresponding to an external first motor to work, a first lower bridge driving circuit for driving a lower bridge arm switching tube corresponding to an external first motor to work, a second upper bridge driving circuit for driving an upper bridge arm switching tube corresponding to an external second motor to work, a second lower bridge driving circuit for driving a lower bridge arm switching tube corresponding to an external second motor to work and a PFC driving circuit into the same IC chip, compared with the drive IC circuit of the intelligent power module in the prior art, the drive IC circuit of the intelligent power module further improves the integration level of the intelligent power module, therefore, the cost of the intelligent power module is reduced, and meanwhile, the reliability of the intelligent power module is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a driving IC circuit of an intelligent power module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of an intelligent power module according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention provides a driving IC circuit 100 of an intelligent power module, which is used to further improve the integration level of the intelligent power module, so as to reduce the cost of the intelligent power module and improve the reliability of the intelligent power module.
Fig. 1 is a schematic structural diagram of an embodiment of a driver IC circuit of an intelligent power module according to the present invention, and referring to fig. 1, in this embodiment, a driver IC circuit 100 of the intelligent power module includes a first upper bridge control signal input terminal HIN1, a second upper bridge control signal input terminal HIN2, a third upper bridge control signal input terminal HIN3, a fourth upper bridge control signal input terminal HIN4, a fifth upper bridge control signal input terminal HIN5, a sixth upper bridge control signal input terminal HIN6, a first lower bridge control signal input terminal LIN1, a second lower bridge control signal input terminal LIN2, a third lower bridge control signal input terminal LIN3, a fourth lower bridge control signal input terminal 4, a fifth lower bridge control signal input terminal LIN5, a sixth lower bridge control signal input terminal 6, a PFC control signal input terminal PFCIN, a logic input buffer circuit 101, a first upper bridge driver circuit 102, a first lower bridge driver circuit 103, a second upper bridge driver circuit 104, A second lower bridge driving circuit 105 and a PFC driving circuit 106.
The logic input buffer circuit 101 is configured to perform a wave shaping filtering process on the control signals input by the first upper bridge control signal input terminal HIN1, the second upper bridge control signal input terminal HIN2, and the third upper bridge control signal input terminal HIN3, and output the control signals after the wave shaping filtering process to the first upper bridge driving circuit 102; the logic input buffer circuit 101 performs a whole wave filtering process on the control signals input by the first lower bridge control signal input terminal LIN1, the second lower bridge control signal input terminal LIN2 and the third lower bridge control signal input terminal LIN3, and outputs the control signals after the whole wave filtering process to the first lower bridge driving circuit 103; the logic input buffer circuit 101 performs a full wave filtering process on the control signals input by the fourth upper bridge control signal input terminal HIN4, the fifth upper bridge control signal input terminal HIN5 and the sixth upper bridge control signal input terminal HIN6, and outputs the control signals after the full wave filtering process to the second upper bridge driving circuit 104; the logic input buffer circuit 101 performs a whole wave filtering process on the control signals input by the fourth lower bridge control signal input terminal LIN4, the fifth lower bridge control signal input terminal LIN5 and the sixth lower bridge control signal input terminal LIN6, and outputs the control signals after the whole wave filtering process to the second lower bridge driving circuit 105; the logic input buffer circuit 101 performs a wave shaping filtering process on the control signal input by the PFC control signal input terminal PFCIN, and outputs the control signal after the wave shaping filtering process to the PFC driving circuit 106;
the first upper bridge driving circuit 102 is configured to drive an upper bridge arm switching tube (not shown) corresponding to an external first motor (not shown) to operate according to the control signal output by the logic input buffer circuit 101. It should be noted that the upper bridge arm switching tubes corresponding to the external first motor include 3 switching tubes, and therefore, the output end of the first upper bridge driving circuit 102 includes a first output end HO1, a second output end HO2, and a third output end HO 3;
the first lower bridge driving circuit 103 is configured to drive a lower bridge arm switching tube (not shown) corresponding to an external first motor to operate according to the control signal output by the logic input buffer circuit 101. It should be noted that the lower bridge arm switching tubes corresponding to the external first motor also include 3 switching tubes, and therefore, the output end of the first lower bridge driving circuit 103 includes a first output end LO1, a second output end LO2, and a third output end LO 3;
the second upper bridge driving circuit 104 is configured to drive an upper bridge arm switching tube (not shown) corresponding to an external second motor (not shown) to work according to the control signal output by the logic input buffer circuit 101. It should be noted that the upper bridge arm switching tubes corresponding to the external second motor include 3 switching tubes, and therefore, the output end of the second upper bridge driving circuit 104 includes a first output end HO4, a second output end HO5, and a third output end HO 6;
the second lower bridge driving circuit 105 is configured to drive a lower bridge arm switching tube (not shown) corresponding to an external second motor to operate according to the control signal output by the logic input buffer circuit 101. It should be noted that the lower bridge arm switching tubes corresponding to the external second motor also include 3 switching tubes, and therefore, the output end of the second lower bridge driving circuit 105 includes a first output end LO4, a second output end LO5, and a third output end LO 6;
the PFC driving circuit 106 is configured to drive an external PFC switching tube (not shown) to operate according to the control signal output by the logic input buffer circuit 101, and an output end of the PFC driving circuit 106 is a PFCO.
Further, the driving IC circuit 100 of the intelligent power module of the present embodiment further includes an enable terminal EN, an error signal output terminal FAULT, a reset terminal RS, a protection circuit 107, an error determination logic circuit 108, and a driving logic circuit 109. The drive IC circuit 100 is reset when a reset signal is input to the reset terminal RS.
Specifically, the protection circuit 107 is configured to output a first under-voltage protection signal to the error determination logic circuit 108 when an under-voltage occurs at a low-voltage-side power supply input terminal VDD (i.e., a driving voltage input terminal) of the driving IC circuit 100 of the intelligent power module of this embodiment, output an over-current protection signal to the error determination logic circuit 108 when any one of the switching tubes is over-current, and output an over-temperature protection signal to the error determination logic circuit 108 when the intelligent power module is over-temperature;
the error determination logic 108 is configured to output an error signal to the error signal output terminal futal when receiving the first under-voltage protection signal, the over-current protection signal, or/and the over-temperature protection signal;
the driving logic circuit 109 is configured to output a start signal to the logic input buffer circuit 101 when the error determining logic circuit 108 does not output the error signal and the enable terminal EN inputs an enable signal, so as to control the first upper bridge driving circuit 102, the first lower bridge driving circuit 103, the second upper bridge driving circuit 104, the second lower bridge driving circuit 105, and the PFC driving circuit 106 to start operating.
Further, in this embodiment, the protection circuit 107 includes a low-voltage side under-voltage protection circuit 1071, an over-current protection circuit 1072, and an over-temperature protection circuit 1073.
The low-voltage-side undervoltage protection circuit 1071 is configured to output a first undervoltage protection signal to the error determination logic circuit 108 when the low-voltage-side power supply input VDD of the driving IC circuit 100 of the intelligent power module of this embodiment is undervoltage;
the overcurrent protection circuit 1072 is configured to output an overcurrent protection signal to the error determination logic circuit 108 when any one of the switching tubes is subjected to overcurrent;
the over-temperature protection circuit 1073 is configured to output an over-temperature protection signal to the error determination logic circuit 108 when the intelligent power module is over-temperature.
Further, the driving IC circuit 100 of the intelligent power module of this embodiment further includes a high-side under-voltage protection circuit 110, where the high-side under-voltage protection circuit 110 is configured to output a second under-voltage protection signal to the logic input buffer circuit 101 when a high-side power supply input terminal (not shown) of the driving IC circuit 100 of the intelligent power module of this embodiment is under-voltage, so as to control the first upper bridge driving circuit 102, the first lower bridge driving circuit 103, the second upper bridge driving circuit 104, the second lower bridge driving circuit 105, and the PFC driving circuit 106 to stop working.
The first upper bridge driving circuit 102 for driving the upper bridge arm switching tubes corresponding to the external first motor to operate, the first lower bridge driving circuit 103 for driving the lower bridge arm switching tubes corresponding to the external first motor to operate, the second upper bridge driving circuit 104 for driving the upper bridge arm switching tubes corresponding to the external second motor to operate, the second lower bridge driving circuit 105 for driving the lower bridge arm switching tubes corresponding to the external second motor to operate, and the PFC driving circuit 106 are integrated in the same IC chip, so that the driving IC circuit 100 of the intelligent power module of this embodiment further improves the integration level of the intelligent power module compared with the driving IC circuit of the intelligent power module in the prior art, thereby reducing the cost of the intelligent power module, meanwhile, the reliability of the intelligent power module is improved.
The invention further provides an intelligent power module, fig. 2 is a schematic structural diagram of an embodiment of the intelligent power module of the invention, and referring to fig. 1 and fig. 2 together, the intelligent power module 200 includes a PFC switching tube Q5, a plurality of resistors (such as a resistor R1, a resistor R2, a resistor R3, a resistor R4, and a resistor R5), a first upper arm switching tube Q1, a second upper arm switching tube (not shown), a third upper arm switching tube (not shown), a first lower arm switching tube Q2, a second lower arm switching tube (not shown), and a third lower arm switching tube (not shown) corresponding to an external first motor M1, a fourth upper arm switching tube Q3, a fifth upper arm switching tube (not shown), a sixth upper arm switching tube (not shown), a fourth lower arm switching tube Q4, a fifth lower arm switching tube (not shown), and a sixth lower arm switching tube (not shown), And the driving IC circuit 100 of the smart power module as described above (i.e., the driving IC circuit 100 of the smart power module shown in fig. 1).
Specifically, in this embodiment, the first output terminal HO1 of the first upper bridge driving circuit 102 in the driving IC circuit 100 is connected to the control terminal of the first upper bridge arm switch Q1 through the resistor R1, the second output terminal HO2 of the first upper bridge driving circuit 102 is connected to the control terminal of the second upper bridge arm switch tube (not shown) through a resistor (not shown) (i.e. the connection structure of the second upper bridge arm switch tube is not shown in fig. 2, and the connection structure is the same as that of the first upper bridge arm switch tube Q1), a third output terminal HO3 of the first upper bridge driving circuit 102 is connected to a control terminal of the third upper bridge arm switch tube (not shown) through a resistor (not shown) (i.e., a connection structure of the third upper bridge arm switch tube, not shown in fig. 2, is the same as that of the first upper bridge arm switch tube Q1); a first output terminal LO1 of a first lower bridge driving circuit 103 in the driving IC circuit 100 is connected to a control terminal of the first lower bridge arm switching tube Q2 through a resistor R2, a second output terminal LO2 of the first lower bridge driving circuit 103 is connected to a control terminal of the second lower bridge arm switching tube (not shown) through a resistor (not shown) (i.e., a connection structure of the second lower bridge arm switching tube (not shown in fig. 2) is the same as that of the first lower bridge arm switching tube Q2), and a third output terminal LO3 of the first lower bridge driving circuit 103 is connected to a control terminal of the third lower bridge arm switching tube (not shown in fig. 2) through a resistor (not shown in fig. 2) (i.e., a connection structure of the third lower bridge arm switching tube (not shown in fig. 2) is the same as that of the first lower bridge arm switching tube Q2);
a first output end HO4 of a second upper bridge driving circuit 104 in the driving IC circuit 100 is connected to a control end of the fourth upper bridge arm switching tube Q3 through a resistor R3, a second output end HO5 of the second upper bridge driving circuit 104 is connected to a control end of a fifth upper bridge arm switching tube (not shown) through a resistor (not shown) (that is, a connection structure of the fifth upper bridge arm switching tube is not shown in fig. 2 and is the same as the connection structure of the fourth upper bridge arm switching tube Q3), and a third output end HO6 of the second upper bridge driving circuit 104 is connected to a control end of a sixth upper bridge arm switching tube (not shown in fig. 2) through a resistor (not shown) (that is, the connection structure of the sixth upper bridge arm switching tube is not shown in fig. 2 and is the same as the connection structure of the fourth upper bridge arm switching tube Q3); a first output end LO4 of a second lower bridge driving circuit 105 in the driving IC circuit 100 is connected to a control end of the fourth lower bridge arm switching tube Q4 through a resistor R4, a second output end LO5 of the second lower bridge driving circuit 105 is connected to a control end of a fifth lower bridge arm switching tube (not shown) through a resistor (not shown) (that is, a connection structure of the fifth lower bridge arm switching tube is not shown in fig. 2 and is the same as the connection structure of the fourth lower bridge arm switching tube Q4), and a third output end LO6 of the second lower bridge driving circuit 105 is connected to a control end of a sixth lower bridge arm switching tube (not shown in fig. 2) through a resistor (not shown) (that is, the connection structure of the sixth lower bridge arm switching tube is not shown in fig. 2 and is the same as the connection structure of the fourth lower bridge arm switching tube Q4); in this embodiment, the output end PFCO of the PFC driving circuit 106 in the driving IC circuit 100 is connected to the control end of the PFC switching tube Q5 through a resistor R5. In this embodiment, the low-voltage power supply input terminal VDD of the driving IC circuit 100 provides driving voltages for the external first motor M1, the external second motor M2, and the PFC driving circuit 106.
The smart power module 200 of this embodiment further includes a first current sampling resistor R6, a second current sampling resistor R7, and a third current sampling resistor R8. A first end of the first current sampling resistor R6 is connected with a current output end of the PFC switching tube Q5, and a second end of the first current sampling resistor R6 is grounded; a first end of the second current sampling resistor R7 is connected to current output ends of the first lower arm switching tube Q2, the second lower arm switching tube (not shown), and the third lower arm switching tube (not shown), respectively, and a second end of the second current sampling resistor R7 is grounded; a first end of the third current sampling resistor R8 is connected to current output ends of the fourth lower arm switching tube Q4, the fifth lower arm switching tube (not shown), and the sixth lower arm switching tube (not shown), respectively, and a second end of the third current sampling resistor R8 is grounded. In this embodiment, the first end of the first current sampling resistor R6 is further connected to the first input end of the over-current protection circuit 1072 in the driver IC circuit 100, the first end of the second current sampling resistor R7 is further connected to the second input end of the over-current protection circuit 1072 in the driver IC circuit 100, and the first end of the third current sampling resistor R8 is further connected to the third input end of the over-current protection circuit 1072 in the driver IC circuit 100.
The smart power module 200 of this embodiment further includes a temperature detection circuit 201 for detecting the temperature of the smart power module 200 of this embodiment, and the temperature detection circuit 201 is connected to the input terminal of the over-temperature protection circuit 1073 in the driving IC circuit 100.
In this embodiment, the PFC switching tube Q5, the first upper arm switching tube Q1, the second upper arm switching tube (not shown), the third upper arm switching tube (not shown), the first lower arm switching tube Q2, the second lower arm switching tube (not shown), the third lower arm switching tube (not shown), the fourth upper arm switching tube Q3, the fifth upper arm switching tube (not shown), the sixth upper arm switching tube (not shown), the fourth lower arm switching tube Q4, the fifth lower arm switching tube (not shown), and the sixth lower arm switching tube (not shown) are IGBT tubes.
The intelligent power module 200 of this embodiment further includes a first high-voltage region power supply input terminal P1, a second high-voltage region power supply input terminal P2, a plurality of freewheeling diodes (such as freewheeling diode FRD1, freewheeling diode FRD2, freewheeling diode FRD3, freewheeling diode FRD4 and freewheeling diode FRD5), a PFC signal output terminal PFCOUT and a first diode D1. Specifically, in this embodiment, the collector of the first upper arm switching tube Q1, the collector of the second upper arm switching tube (not shown), the collector of the third upper arm switching tube (not shown), the collector of the fourth upper arm switching tube Q3, the collector of the fifth upper arm switching tube (not shown), and the collector of the sixth upper arm switching tube (not shown) are connected to the first high-voltage-region power supply input terminal P1, the emitter of the first upper arm switching tube Q1 is connected to the collector of the first lower arm switching tube Q2, the emitter of the second upper arm switching tube (not shown) is connected to the collector of the second lower arm switching tube (not shown), the emitter of the third upper arm switching tube (not shown) is connected to the collector of the third lower arm switching tube (not shown), the emitter of the fourth upper arm switching tube Q3 is connected to the collector of the fourth lower arm switching tube Q4, an emitter of the fifth upper bridge arm switching tube (not shown) is connected with a collector of the fifth lower bridge arm switching tube (not shown), and an emitter of the sixth upper bridge arm switching tube (not shown) is connected with a collector of the sixth lower bridge arm switching tube (not shown); an emitter of the first lower arm switching tube Q2, an emitter of the second lower arm switching tube (not shown), and an emitter of the third lower arm switching tube (not shown) are connected to a first end of the second current sampling resistor R7, and an emitter of the fourth lower arm switching tube Q4, an emitter of the fifth lower arm switching tube (not shown), and an emitter of the sixth lower arm switching tube (not shown) are connected to a first end of the third current sampling resistor R8; the collector of the PFC switch tube Q5 is connected to the PFC signal output terminal PFCOUT and the anode of the first diode D1, respectively, the cathode of the first diode D1 is connected to the second high-voltage-region power supply input terminal P2, and the emitter of the PFC switch tube Q5 is connected to the first end of the first current sampling resistor R6.
In this embodiment, the cathode of the freewheeling diode FRD1 is connected to the collector of the first upper arm switch Q1, the anode of the freewheeling diode FRD1 is connected to the emitter of the first upper arm switch Q1, the cathode of the freewheeling diode FRD2 is connected to the collector of the first lower arm switch Q2, the anode of the freewheeling diode FRD2 is connected to the emitter of the first lower arm switch Q2, the cathode of the freewheeling diode FRD3 is connected to the collector of the fourth upper arm switch Q3, the anode of the freewheeling diode FRD3 is connected to the emitter of the fourth upper arm switch Q3, the cathode of the freewheeling diode FRD4 is connected to the collector of the fourth lower arm switch Q4, the anode of the freewheeling diode FRD4 is connected to the emitter of the fourth lower arm switch Q4, and similarly, a freewheeling diode (not shown) is connected between the collectors and the emitters of the other switches, and will not be described in detail herein.
In this embodiment, a connection node between the first upper arm switching tube Q1 and the first lower arm switching tube Q2, a connection node between the second upper arm switching tube and the second lower arm switching tube, and a connection node between the third upper arm switching tube and the third lower arm switching tube are connected to an external first motor M1, and a connection node between the fourth upper arm switching tube Q3 and the fourth lower arm switching tube Q4, a connection node between the fifth upper arm switching tube and the fifth lower arm switching tube, and a connection node between the sixth upper arm switching tube and the sixth lower arm switching tube are connected to an external second motor M2. When the intelligent power module 200 of this embodiment is applied to an air conditioner (e.g., an inverter air conditioner), the first motor M1 may be a blower of the air conditioner, and the second motor M2 may be a compressor of the air conditioner.
In the intelligent power module 200 of this embodiment, the driving IC circuit 100 in the intelligent power module integrates the first upper bridge driving circuit 102, the first lower bridge driving circuit 103, the second upper bridge driving circuit 104, the second lower bridge driving circuit 105, and the PFC driving circuit 106 in the same IC chip, so that the intelligent power module 200 of this embodiment further improves the integration level of the intelligent power module compared with the intelligent power module in the prior art, thereby reducing the cost of the intelligent power module. In addition, the intelligent power module 200 of this embodiment shares a set of protection circuit 107 with the external first motor M1, the external second motor M2 and the PFC switch tube Q5, specifically, in this embodiment, when the low-voltage side power supply input terminal VDD of the driving IC circuit 100 is under-voltage, the low-voltage side under-voltage protection circuit 1071 in the protection circuit 107 outputs a first under-voltage protection signal to the error determination logic circuit 108, in this embodiment, when any one of the switch tubes is over-current, the over-current protection circuit 1072 in the protection circuit 107 outputs an over-current protection signal to the error determination logic circuit 108, and when the temperature of the intelligent power module 200 of this embodiment is too high, the over-temperature protection circuit 1073 in the protection circuit 107 outputs an over-temperature protection signal to the error determination logic circuit 108, and the error determination logic circuit 108 receives the first under-voltage protection signal, When the overcurrent protection signal or/and the overtemperature protection signal is/are detected, an error signal is output to the error signal output terminal FUALT, the error signal output terminal FUALT is connected to an external controller (not shown), and when the external controller receives the error signal, the external controller outputs a corresponding control signal to the driving IC circuit 100 to control the first upper bridge driving circuit 102, the first lower bridge driving circuit 103, the second upper bridge driving circuit 104, the second lower bridge driving circuit 105, and the PFC driving circuit 106 to stop working, so as to control the first motor M1, the second motor M2, and the PFC switching tube Q5 to stop working. Similarly, in this embodiment, when the input terminal (not shown) of the high-voltage side power supply of the driving IC circuit 100 is under-voltage, the high-voltage side under-voltage protection circuit 110 outputs a second under-voltage protection signal to the logic input buffer circuit 101 to control the first upper bridge driving circuit 102, the first lower bridge driving circuit 103, the second upper bridge driving circuit 104, the second lower bridge driving circuit 105 and the PFC driving circuit 106 to stop working. That is, the present embodiment can effectively prevent one of the separate devices from causing a problem and causing the other modules to continue to operate, so as to better protect the intelligent power module 200 of the present embodiment and improve the reliability of the intelligent power module 200.
To sum up, the intelligent power module 200 of this embodiment adopts the highly integrated driver IC circuit 100, and the intelligent power module 200 of this embodiment shares one set of protection circuit 107, so as to simplify the internal structure of the highly integrated intelligent power module (also called highly integrated IPM), greatly improve the integration level and reliability of the intelligent power module, and reduce the cost and volume; the intelligent power module 200 of the present embodiment also reduces the difficulty of internal wiring of the intelligent power module. The intelligent power module 200 of the embodiment has the advantages of simple and reasonable structure, flexible operation, low cost, high integration level, high reliability and wide application range.
The present invention further provides an air conditioner, which includes an intelligent power module, and the structure of the intelligent power module can refer to the above embodiments, and is not described herein again. It should be understood that, since the air conditioner of the present embodiment adopts the technical solution of the intelligent power module, the air conditioner has all the beneficial effects of the intelligent power module.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A drive IC circuit of an intelligent power module is characterized in that the drive IC circuit comprises an upper bridge control signal input end, a lower bridge control signal input end, a PFC control signal input end, a logic input buffer circuit, a first upper bridge drive circuit, a second upper bridge drive circuit, a first lower bridge drive circuit, a second lower bridge drive circuit and a PFC drive circuit; wherein:
the logic input buffer circuit is used for performing wave shaping filtering processing on the control signals input by the upper bridge control signal input end, the lower bridge control signal input end and the PFC control signal input end, and correspondingly outputting the control signals subjected to the wave shaping filtering processing to the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit;
the first upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external first motor to work according to the control signal output by the logic input buffer circuit;
the first lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external first motor to work according to the control signal output by the logic input buffer circuit;
the second upper bridge driving circuit is used for driving an upper bridge arm switching tube corresponding to an external second motor to work according to the control signal output by the logic input buffer circuit;
the second lower bridge driving circuit is used for driving a lower bridge arm switching tube corresponding to an external second motor to work according to the control signal output by the logic input buffer circuit;
and the PFC driving circuit is used for driving an external PFC switching tube to work according to the control signal output by the logic input buffer circuit.
2. The driver IC circuit of an intelligent power module according to claim 1, wherein the driver IC circuit further comprises an enable terminal, an error signal output terminal, a protection circuit, an error judgment logic circuit, and a driver logic circuit; wherein:
the protection circuit is used for outputting a first undervoltage protection signal to the error judgment logic circuit when undervoltage occurs at the input end of the low-voltage side power supply of the drive IC circuit, outputting an overcurrent protection signal to the error judgment logic circuit when any one of the switching tubes is in overcurrent, and outputting an overtemperature protection signal to the error judgment logic circuit when the intelligent power module is in overtemperature;
the error judgment logic circuit is used for outputting an error signal to the error signal output end when receiving the first undervoltage protection signal, the overcurrent protection signal or/and the overtemperature protection signal;
and the driving logic circuit is used for outputting a starting signal to the logic input buffer circuit when the error judging logic circuit does not output the error signal and the enabling end inputs an enabling signal so as to control the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit to start working.
3. The driving IC circuit of an intelligent power module according to claim 2, wherein the protection circuit includes a low-voltage side under-voltage protection circuit, an over-current protection circuit, and an over-temperature protection circuit; wherein:
the low-voltage side undervoltage protection circuit is used for outputting a first undervoltage protection signal to the error judgment logic circuit when the input end of the low-voltage side power supply of the drive IC circuit is undervoltage;
the overcurrent protection circuit is used for outputting an overcurrent protection signal to the error judgment logic circuit when any one of the switching tubes is in overcurrent;
and the over-temperature protection circuit is used for outputting an over-temperature protection signal to the error judgment logic circuit when the intelligent power module is over-temperature.
4. The driver IC circuit of a smart power module as recited in claim 3, wherein said driver IC circuit further comprises:
and the high-voltage side under-voltage protection circuit is used for outputting a second under-voltage protection signal to the logic input buffer circuit when the input end of the high-voltage side power supply of the drive IC circuit is under-voltage so as to control the first upper bridge driving circuit, the second upper bridge driving circuit, the first lower bridge driving circuit, the second lower bridge driving circuit and the PFC driving circuit to stop working.
5. An intelligent power module is characterized by comprising a PFC (power factor correction) switching tube, a plurality of resistors, a first upper bridge arm switching tube, a second upper bridge arm switching tube, a third upper bridge arm switching tube, a first lower bridge arm switching tube, a second lower bridge arm switching tube and a third lower bridge arm switching tube which correspond to an external first motor, a fourth upper bridge arm switching tube, a fifth upper bridge arm switching tube, a sixth upper bridge arm switching tube, a fourth lower bridge arm switching tube, a fifth lower bridge arm switching tube and a sixth lower bridge arm switching tube which correspond to an external second motor, and a driving IC (integrated circuit) circuit of the intelligent power module, wherein the driving IC circuit comprises a first upper bridge arm switching tube, a second upper bridge arm switching tube, a third upper bridge arm switching tube, a first lower bridge arm switching tube, a second lower bridge; wherein:
a first output end of a first upper bridge driving circuit in the driving IC circuit is connected with a control end of the first upper bridge arm switching tube through a resistor, a second output end of the first upper bridge driving circuit is connected with a control end of the second upper bridge arm switching tube through a resistor, and a third output end of the first upper bridge driving circuit is connected with a control end of the third upper bridge arm switching tube through a resistor; a first output end of a first lower bridge driving circuit in the driving IC circuit is connected with a control end of the first lower bridge arm switching tube through a resistor, a second output end of the first lower bridge driving circuit is connected with a control end of the second lower bridge arm switching tube through a resistor, and a third output end of the first lower bridge driving circuit is connected with a control end of the third lower bridge arm switching tube through a resistor;
a first output end of a second upper bridge driving circuit in the driving IC circuit is connected with a control end of the fourth upper bridge arm switching tube through a resistor, a second output end of the second upper bridge driving circuit is connected with a control end of the fifth upper bridge arm switching tube through a resistor, and a third output end of the second upper bridge driving circuit is connected with a control end of the sixth upper bridge arm switching tube through a resistor; a first output end of a second lower bridge driving circuit in the driving IC circuit is connected with a control end of the fourth lower bridge arm switching tube through a resistor, a second output end of the second lower bridge driving circuit is connected with a control end of the fifth lower bridge arm switching tube through a resistor, and a third output end of the second lower bridge driving circuit is connected with a control end of the sixth lower bridge arm switching tube through a resistor;
the output end of a PFC driving circuit in the driving IC circuit is connected with the control end of the PFC switching tube through the resistor.
6. The smart power module of claim 5 further comprising a first current sampling resistor, a second current sampling resistor, and a third current sampling resistor; wherein:
a first end of the first current sampling resistor is connected with a current output end of the PFC switch tube, a first end of the second current sampling resistor is respectively connected with current output ends of the first lower bridge arm switch tube, the second lower bridge arm switch tube and the third lower bridge arm switch tube, a first end of the third current sampling resistor is respectively connected with current output ends of the fourth lower bridge arm switch tube, the fifth lower bridge arm switch tube and the sixth lower bridge arm switch tube, and a second end of the first current sampling resistor, a second end of the second current sampling resistor and a second end of the third current sampling resistor are grounded; the first end of the first current sampling resistor is further connected with a first input end of the overcurrent protection circuit in the drive IC circuit, the first end of the second current sampling resistor is further connected with a second input end of the overcurrent protection circuit in the drive IC circuit, and the first end of the third current sampling resistor is further connected with a third input end of the overcurrent protection circuit in the drive IC circuit.
7. The smart power module of claim 6 further comprising a temperature detection circuit for detecting a temperature of the smart power module, the temperature detection circuit being connected to an input of the over-temperature protection circuit in the driver IC circuit.
8. The intelligent power module according to any one of claims 5 to 7, wherein the PFC switching tubes, the first upper bridge arm switching tube, the second upper bridge arm switching tube, the third upper bridge arm switching tube, the first lower bridge arm switching tube, the second lower bridge arm switching tube, the third lower bridge arm switching tube, the fourth upper bridge arm switching tube, the fifth upper bridge arm switching tube, the sixth upper bridge arm switching tube, the fourth lower bridge arm switching tube, the fifth lower bridge arm switching tube, and the sixth lower bridge arm switching tube are IGBT tubes.
9. The smart power module of claim 8 further comprising a first high-voltage area supply input, a second high-voltage area supply input, a plurality of freewheeling diodes, a PFC signal output, and a first diode; wherein:
a collector of the first upper bridge arm switching tube, a collector of the second upper bridge arm switching tube, a collector of the third upper bridge arm switching tube, a collector of the fourth upper bridge arm switching tube, a collector of the fifth upper bridge arm switching tube, and a collector of the sixth upper bridge arm switching tube are connected with the input end of the first high-voltage region power supply, an emitter of the first upper bridge arm switching tube is connected with the collector of the first lower bridge arm switching tube, an emitter of the second upper bridge arm switching tube is connected with the collector of the second lower bridge arm switching tube, an emitter of the third upper bridge arm switching tube is connected with the collector of the third lower bridge arm switching tube, an emitter of the fourth upper bridge arm switching tube is connected with the collector of the fourth lower bridge arm switching tube, and an emitter of the fifth upper bridge arm switching tube is connected with the collector of the fifth lower bridge arm switching tube, an emitter of the sixth upper bridge arm switching tube is connected with a collector of the sixth lower bridge arm switching tube; the emitter of the first lower bridge arm switching tube, the emitter of the second lower bridge arm switching tube and the emitter of the third lower bridge arm switching tube are connected with the first end of the second current sampling resistor, and the emitter of the fourth lower bridge arm switching tube, the emitter of the fifth lower bridge arm switching tube and the emitter of the sixth lower bridge arm switching tube are connected with the first end of the third current sampling resistor; a collector of the PFC switch tube is respectively connected with the PFC signal output end and an anode of the first diode, a cathode of the first diode is connected with an input end of the second high-voltage area power supply, and an emitter of the PFC switch tube is connected with a first end of the first current sampling resistor; a freewheeling diode is connected between the collector and the emitter of each switching tube;
the connection node of the first upper bridge arm switching tube and the first lower bridge arm switching tube, the connection node of the second upper bridge arm switching tube and the second lower bridge arm switching tube, and the connection node of the third upper bridge arm switching tube and the third lower bridge arm switching tube are connected with an external first motor, and the connection node of the fourth upper bridge arm switching tube and the fourth lower bridge arm switching tube, the connection node of the fifth upper bridge arm switching tube and the fifth lower bridge arm switching tube, and the connection node of the sixth upper bridge arm switching tube and the sixth lower bridge arm switching tube are connected with an external second motor.
10. An air conditioner characterized in that it comprises the smart power module of any one of claims 5 to 9.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832385.6A CN110752788A (en) | 2018-07-24 | 2018-07-24 | Drive IC circuit of intelligent power module, intelligent power module and air conditioner |
| JP2019544911A JP6889781B2 (en) | 2018-07-24 | 2019-04-25 | Intelligent power module drive IC circuit, intelligent power module and air conditioner |
| PCT/CN2019/084289 WO2020019788A1 (en) | 2018-07-24 | 2019-04-25 | Driver ic circuit of intelligent power module, intelligent power module and air conditioner |
| US16/582,464 US11121617B2 (en) | 2018-07-24 | 2019-09-25 | Driver IC circuit of intelligent power module, intelligent power module, and air conditioner |
| JP2020213758A JP7042324B2 (en) | 2018-07-24 | 2020-12-23 | Intelligent power modules and air conditioners |
| US17/398,563 US11456658B2 (en) | 2018-07-24 | 2021-08-10 | Driver IC circuit of intelligent power module, intelligent power module, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832385.6A CN110752788A (en) | 2018-07-24 | 2018-07-24 | Drive IC circuit of intelligent power module, intelligent power module and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN110752788A true CN110752788A (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832385.6A Pending CN110752788A (en) | 2018-07-24 | 2018-07-24 | Drive IC circuit of intelligent power module, intelligent power module and air conditioner |
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| Country | Link |
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| CN (1) | CN110752788A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707918A (en) * | 2020-06-22 | 2020-09-25 | 卧龙电气驱动集团股份有限公司 | Self-integration driving detection method and device of motor control system for air-conditioning fan |
| CN112994424A (en) * | 2021-03-29 | 2021-06-18 | 广东汇芯半导体有限公司 | Intelligent dual-drive IPM variable frequency controller and air conditioner |
| CN116093888A (en) * | 2023-04-08 | 2023-05-09 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
-
2018
- 2018-07-24 CN CN201810832385.6A patent/CN110752788A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707918A (en) * | 2020-06-22 | 2020-09-25 | 卧龙电气驱动集团股份有限公司 | Self-integration driving detection method and device of motor control system for air-conditioning fan |
| CN111707918B (en) * | 2020-06-22 | 2023-09-08 | 卧龙电气驱动集团股份有限公司 | Self-integrated driving detection method and device for motor control system for air conditioner fan |
| CN112994424A (en) * | 2021-03-29 | 2021-06-18 | 广东汇芯半导体有限公司 | Intelligent dual-drive IPM variable frequency controller and air conditioner |
| CN112994424B (en) * | 2021-03-29 | 2024-04-09 | 广东汇芯半导体有限公司 | Intelligent dual-drive IPM variable frequency controller and air conditioner |
| CN116093888A (en) * | 2023-04-08 | 2023-05-09 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
| CN116093888B (en) * | 2023-04-08 | 2023-08-18 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
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