High voltage device built from modular low voltage devices and operation methods thereof
US12261464B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Feb 1, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6871
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a high voltage device built from modular low voltage cells. Each low voltage cell includes a plurality of low voltage semiconductor devices and one or more low voltage passive components. Each cell can be a current-bidirectional two-quadrant switch or a four-quadrant switch. All the cells may be identical and controlled with a delay time in between. Therefore, the total on and off time of the high voltage device can be controlled to reduce the output equivalent dv/dt. The cell's voltage balancing can be achieved through a control algorithm disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.