Intelligent power module and air conditioner

Abstract

The invention provides an intelligent power module and an air conditioner. The intelligent power module comprises a three-phase upper bridge arm signal input end, a three-phase lower bridge arm signal input end, a control end and a high voltage integrated circuit (HVIC) tube, wherein wiring ends are arranged on the HVIC tube and are in respective correspondence to the three-phase upper bridge arm signal input end and the three-phase lower bridge arm signal input end, each signal input end of the three-phase upper bridge arm signal input end and each signal input end of the three-phase lower bridge arm signal input end are connected with a first input end of one corresponding logic control circuit, an output end of each logic control circuit is connected to the corresponding wiring end on the HVIC tube, a second input end of each logic control circuit is connected to the control end, and the logic control circuit is used for controlling an input signal of the control end and outputting a signal having same phase or reverse phase with the first input end. With the technical scheme provided by the invention, the intelligent power module can be controlled to automatically convert positive and negative logics according to different application scenes on the condition of ensuring no change on the HVIC tube.

Description

technical field [0001] The present invention relates to the technical field of intelligent power modules, in particular to an intelligent power module and an air conditioner. Background technique [0002] Intelligent Power Module (Intelligent Power Module, referred to as IPM) is a power driver that integrates power electronic discrete devices and integrated circuit technology. and other fault detection circuits. The logic input terminal of the intelligent power module receives the control signal of the main controller, and the output terminal drives the compressor or subsequent circuits to work, and at the same time sends the detected system status signal back to the main controller. Compared with traditional discrete solutions, intelligent power modules have the advantages of high integration, high reliability, self-test and protection circuits, etc., and are especially suitable for inverters and various inverter power supplies for driving motors. Ideal power electronic d...

AI Technical Summary

Problems solved by technology

[0005] However, the current intelligent power module has only one logical choice. When the application situation changes, the model of the intelligent power module needs to be replaced to adapt, which greatly reduces the universality of the intelligent power module and increases the development cost of the intelligent power module. In addition, the change of positive and negative logic is generally carried out on the HVIC tube of the smart module. The change of the HVIC tube weakens the stability of the smart power module, which is detrimental to the long-term reliability of the smart power module.

Images