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Intelligent power module, power electronic device and air conditioner

A technology of intelligent power modules and power devices, applied in high-efficiency power electronics conversion, output power conversion devices, AC power input conversion to DC power output, etc., can solve problems such as misoperation circuits, large interference and failure of circuit systems, Achieve the effect of reducing current noise, low power consumption, and low power consumption

Inactive Publication Date: 2017-02-01
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related art, the current / voltage-time curve of the intelligent power module is as follows figure 2 As shown, the curve 201 represents the logic signal input voltage of the intelligent power module, the curve 202 represents the operating current of the power device, and the curve 203 represents the operating voltage of the power device, wherein it can be clearly seen from the curve 202 that when the intelligent power module is turned on, Generate an overshoot current Irr1, and the shorter the turn-on time Δt1 of the intelligent power module (the greater the rising slope of the curve 202), the greater the overshoot current, the greater the interference to the circuit system, and even cause misoperation and circuit failure

Method used

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  • Intelligent power module, power electronic device and air conditioner
  • Intelligent power module, power electronic device and air conditioner
  • Intelligent power module, power electronic device and air conditioner

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Experimental program
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Effect test

Embodiment 1

[0060] According to an embodiment of the present invention, the resistance values ​​of the first resistor R1 , the second resistor R2 , the third resistor R3 , the fourth resistor R4 , the fifth resistor R5 , the sixth resistor R6 and the seventh resistor R7 are all 0 ohms.

[0061] According to the intelligent power module of the embodiment of the present invention, by setting the resistance values ​​of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6 and the seventh resistor R7 Both are 0 ohms, which can reduce the power consumption of the intelligent power module by 60%.

Embodiment 2

[0063]According to an embodiment of the present invention, the resistance values ​​of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 are all 7.5 ohms, and the resistance value of the seventh resistor R7 is The resistance is 20 ohms.

[0064] According to the intelligent power module of the embodiment of the present invention, by setting the resistance values ​​of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5 and the sixth resistor R6 to be 7.5 ohms, The resistance value of the seventh resistor R7 is 20 ohms, which can reduce the power consumption of the intelligent power module by 40%.

Embodiment 3

[0066] According to an embodiment of the present invention, the resistance values ​​of the first resistor R1 , the second resistor R2 , the third resistor R3 , the fourth resistor R4 , the fifth resistor R5 , the sixth resistor R6 and the seventh resistor R7 are all 56 ohms.

[0067] According to the intelligent power module of the embodiment of the present invention, by setting the resistance values ​​of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6 and the seventh resistor R7 Both are 56 ohms, which can reduce the power consumption of the intelligent power module by 30%.

[0068] Additionally, if figure 1 The drive integrated unit Drive IC shown also has interfaces including: power supply interface VSS interface and VDD interface, positive terminal VB1 of the power supply in the U-phase high-voltage area, positive terminal VB2 of the power supply in the V-phase high-voltage area, an...

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PUM

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Abstract

The invention provides an intelligent power module, a power electronic device and an air conditioner. The intelligent power module comprises a drive integrated unit, a power factor correction unit and an inverter switch unit, wherein the inverter switch unit comprises three upper bridge arm power devices and three lower bridge arm power devices; a first gallium nitride diode is connected between a source and a drain of each upper bridge arm power device; a second gallium nitride diode is connected between the source and the drain of each lower bridge arm power device; and grids of the three upper bridge arm power devices and the grids of the three lower bridge arm power devices are connected to corresponding gate drive interfaces in the drive integrated unit respectively. Through the technical scheme provided by the invention, current noise Irr generated in a drive circuit is reduced while the condition that the intelligent power module has low power consumption and short turn-on time is ensured, and the applicability of the intelligent power module is improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an intelligent power module, a power electronic device and an air conditioner. Background technique [0002] The Intelligent Power Module (IPM) is widely used in power electronic equipment. The Intelligent Power Module combines the power switching device (IGBT, Insulated Gate Bipolar Translator, that is, insulated gate transistor or insulated gate bipolar transistor) and The high-voltage drive circuit is integrated. Compared with the traditional discrete solution, the intelligent power module wins more and more markets due to its advantages of high integration and high reliability. It is especially suitable for inverters and various inverter power supplies for driving motors. , is an ideal power electronic device for frequency conversion speed regulation, metallurgical machinery, electric traction, servo drive, and frequency conversion home appliances. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/42H02M7/5387
CPCH02M1/42H02M7/5387Y02B70/10
Inventor 魏调兴冯宇翔
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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