Redundant energy acquisition circuit of power module, and control method thereof
US11264891B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 21, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 13, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A redundant energy acquisition circuit of a power module includes at least one power semiconductor device, a first capacitor, and a first bypass switch. The redundant energy acquisition circuit of the power module includes: a power supply board acquiring energy from the first capacitor, supplying power to a control board, and charging a discharge circuit. A first charging circuit has one end connected to a positive electrode of the first capacitor and another end connected to the discharge circuit, and charges the discharge circuit when the power supply board is not operating normally. The control board controls the discharge circuit to close. The discharge circuit discharges and triggers the first bypass switch to close after the discharge circuit is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.