High-voltage driver switch system and switching method
US11909242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention discloses a high-voltage driver switch system and switching method. The system includes a main control chip module and an energy storage capacitor connected with a battery pack, a drive circuit module, a pre-charge circuit and a charge circuit for charging the energy storage capacitor. The pre-charge circuit is connected with the main control chip module and has a current limit resistor, so as to pre-charge the energy storage capacitor under the control of the main control chip module. The charge circuit is connected with the main control chip module and has an electronic switch module which includes two ends connected respectively with the battery pack and the energy storage capacitor, the battery pack charges the energy storage capacitor when switched-on. The invention reduces the instantaneous start-up current and avoids a high current impact caused by charging the energy storage capacitor by the battery pack directly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.