Controlled bootstrap driver for high side electronic switching device
US9705423B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2016 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Feb 24, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The subject matter of this specification can be embodied in, among other things, a phase circuit having an output port, and a high side circuit having a first input port, a high side switching device configured to receive power from a high side power bus and switch power to the output port based on a first input signal received at the first input port, a voltage regulating device having a regulator input port, and a bootstrap capacitor coupled between the voltage regulating device and the output port, wherein the regulating device is configured to receive power from the high side power bus and controllably supply power to the bootstrap capacitor based on a regulator input voltage received at the regulator input port, the regulator input voltage based on a voltage difference between a voltage present on the output port and a voltage present on the high side power bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.