Enhancing the power density of vehicle-grade power modules is of significance for the performance of electric vehicles. The two-dimensional layout used in conventional power modules results in large parasitic inductance, which limits the switching speed and bus voltage and further affects the increase in power density. To solve this problem, an IGBT power module with EconoDUAL packaging was taken as the research object, and a three-dimensional layout was designed using the stacked DBC method to develop a 1 200 V/1 200 A IGBT power module. The layout structure of the proposed power module was introduced in detail. Compared with those obtained using the conventional two-dimensional layout methods, the parasitic inductance decreased by 58%. Additionally, electrical performance tests including a double-pulse test with pulse current of 1 200 A under bus voltage of 800 V were conducted on the power module, thereby verifying the improved power density of the module. To maintain the heat dissipation performance while increasing the power density,
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |