Power electrical circuit
The integration of thyristors and SiC-based MOSFETs in parallel configuration addresses the high cost and thermal instability of MOSFETs, offering efficient and reliable power distribution in electric vehicles.
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- STMICROELECTRONICS INT NV
- Filing Date
- 2024-11-28
- Publication Date
- 2026-05-29
AI Technical Summary
Existing power electrical circuits in electric vehicles using semiconductor power switches like MOSFETs face high costs and thermal instability due to positive temperature coefficients, leading to thermal runaway and increased losses with temperature.
A power electrical circuit design incorporating thyristors and field-effect transistors in parallel, with SiC-based MOSFETs, allows for series or parallel coupling of power sources, and includes electromechanical contactors for reliable operation, controlled by a control circuit to manage thermal stability and reduce losses.
The solution provides efficient, cost-effective, and thermally stable power distribution with reduced losses, comparable to electromechanical contactors, while maintaining reliability and safety in high-current applications.