Intelligent power module and manufacturing method thereof
A technology of intelligent power module and circuit unit, which is applied in the output power conversion device, the conversion of AC power input to DC power output, instruments, etc., can solve the problems of low reliability, inaccurate temperature detection, etc. Avoid overheating damage
Pending Publication Date: 2022-06-24
广东汇芯半导体有限公司
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Problems solved by technology
[0004] In view of the above-mentioned defects, an object of the present invention is to propose an intelligent power module, which solves the problem of inaccurate temperature detection of existing intelligent power modules, resulting in low reliability
[0005] In view of the above defects, another object of the present invention is to propose a manufacturing method of an intelligent power module, which solves the problem of inaccurate temperature detection of the existing intelligent power module, resulting in low reliability
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[0045] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0046] Combine below Figure 1 to Figure 9 , describes an intelligent power module according to an embodiment of the present invention, including a PFC circuit unit 100, a rectifier bridge circuit unit 200, a three-phase inverter circuit unit 300, a temperature monitoring component 400 and a metal substrate 500, the PFC circuit unit 100, rectifier The bridge circuit unit 200, the three-phase inverter circuit unit 300 and the temperature monitoring component 400 are all disposed on the u...
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The invention discloses an intelligent power module, which is characterized in that a first temperature sensor is arranged on one side of a PFC circuit unit, and the detection end of the first temperature sensor faces the PFC circuit unit; the four rectifier diodes are evenly distributed around the second temperature sensor, and the monitoring end of the second temperature sensor faces the four rectifier diodes respectively; the three-phase inverter circuit unit comprises an upper bridge arm IGBT transistor set and a lower bridge arm IGBT transistor set, the upper bridge arm IGBT transistor set and the lower bridge arm IGBT transistor set are symmetrically distributed on the two sides of a third temperature sensor, and the monitoring end of the third temperature sensor faces the upper bridge arm IGBT transistor set and the lower bridge arm IGBT transistor set. The invention further discloses a manufacturing method of the intelligent power module. According to the intelligent power module and the manufacturing method thereof, the problem of inaccurate temperature detection of an existing intelligent power module is solved.
Description
technical field [0001] The invention relates to the technical field of semiconductors, in particular to an intelligent power module and a manufacturing method thereof. Background technique [0002] Intelligent Power Module, IPM (Intelligent Power Module), is a power drive product that combines power electronics and integrated circuit technology. The intelligent power module integrates the power switching device and the high-voltage drive circuit, and has built-in fault detection circuits such as overvoltage, overcurrent and overheating. On the one hand, the intelligent power module receives the control signal of the MCU to drive the subsequent circuits to work, and on the other hand, sends the system status detection signal back to the MCU. Compared with traditional discrete solutions, intelligent power modules have won more and more markets with their advantages of high integration and high reliability. An ideal power electronic device for machinery, electric traction, se...
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Login to View More IPC IPC(8): G01K13/00H02M7/5387
CPCG01K13/00H02M7/5387
Inventor 冯宇翔谢荣才
Owner 广东汇芯半导体有限公司