Intelligent power module

Abstract

The invention discloses an intelligent power module which comprises a three-channel high-side driving circuit, a three-channel low-side driving circuit, a current sampling circuit, a high-side output control circuit and a low-side output control circuit. The high-side output control circuit is electrically connected with the three-channel high-side driving circuit, and the high-side output control circuit is provided with a first three-channel high-side output end and a second three-channel high-side output end; the low-side output control circuit is electrically connected with the three-channel low-side output driving circuit, and the low-side output control circuit is provided with a first three-channel low-side output end and a second three-channel low-side output end; the current sampling circuit is electrically connected with the high-side output control circuit and the low-side output control circuit. The situation that the power consumption ratio of the intelligent power module is increased due to the fact that the insulated gate bipolar transistor is used as a switching device when the intelligent power module works under the condition of low current can be avoided, and the purpose of saving energy is achieved.

Description

technical field [0001] The present invention relates to the technical field of power modules, in particular to an intelligent power module. Background technique [0002] An intelligent power module is a power drive module that combines electronic and integrated circuit technologies. It mainly integrates power switching devices and high-voltage drive circuits to apply to variable frequency motor servo drive or home appliance variable frequency control. [0003] Traditional intelligent power modules mainly use insulated gate bipolar transistors as inverter devices (switching devices) to achieve control. During application, the operating current will change according to the change of application scenarios. If high-power insulated gate bipolar transistors are still used as inverter devices, this will increase the power consumption ratio of the intelligent power module and cause energy waste. SUMMARY OF THE INVENTION [0004] The purpose of the present invention is to provide ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of intelligent power module to solve the problem that the existing intelligent power module uses an insulated gate bipolar transistor as an inverter device, which will increase its own power consumption when working at a small current. the problem of wasting energy

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