| 摘要 |
PURPOSE: A bulk storage inverter for a vehicle is provided to improve the durability of an IGBT module and the capacity of the inverter by minimizing current imbalance accompanied by the parallel connection of the IGBT module. CONSTITUTION: A first IGBT module(10) connects a first capacitor(Cu) between the collector of an upper side IGBT element(12) and the emitter of a lower side IGBT element(14). A second IGBT module connects a second capacitor between the collector of the upper side IGBT element and the emitter of the lower side IGBT element. A third IGBT module connects a third capacitor between the collector of the upper side IGBT element and the emitter of the lower side IGBT element. A short circuit between the collectors and the emitters is formed with a PCB pattern. The IGBT modules are respectively manufactured with multilayer PCB substrates formed at separate layers The first capacitor and the second capacitor are prepared with a laminated ceramic condenser. [Reference numerals] (AA) Driving motor
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