Energy storage capacitor device and state monitoring circuit
US11624784B2 · kind B2 · utility
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8Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 8, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A state monitoring circuit is disclosed for monitoring health states of N energy storage capacitors in an energy-storage capacitor device, the energy-storage capacitor device including N channels, and each channel comprising one energy storage capacitor, where the state monitoring circuit is configured to: disconnect first terminals of the N energy storage capacitors from the energy-storage capacitor device one by one; and determine whether each of the N energy storage capacitors is abnormal in accordance with a voltage at the first terminal of a corresponding one of the energy storage capacitors, where N is a positive integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.