Controller for on-vehicle inverter
US11418115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2021 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Feb 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0081
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller for an on-vehicle inverter includes an arm circuit and a driver. The driver includes a high-side drive circuit, a low-side drive circuit, and a bootstrap capacitor. The on-vehicle inverter includes a smoothing capacitor. The smoothing capacitor is supplied with leak current by an internal power supply via the bootstrap capacitor and a high-side semiconductor device. The controller further includes a voltage detector and an insertion-removal determination unit. The insertion-removal determination unit is configured to determine whether a connector has been inserted or removed from a change in voltage at ends of a smoothing capacitor detected by a voltage detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.