Power conversion device
US10438874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/06
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
To obtain a compact and high output power conversion device by achieving high heat dispersion performance and a reduction in heat generation, and enabling an efficient arrangement of power modules of three-phase circuits, four switchable power semiconductor chips of each of the power modules are arranged so that two pairs of circuits for one phase connected in series are connected in parallel to form a circuit for two phases, the lead frame includes two positive potential leads, two AC potential leads, and one negative potential lead that are separated from each other, the four switchable power semiconductor chips are individually arranged on four leads of the two positive potential leads and the two AC potential leads, the two positive potential leads each have an end portion connected to a bus bar via a welding point individually provided for each phase, and the bus bar is provided in common.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.