Compensation of level-shift capacitance
US10333408B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2018 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Apr 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/037
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A half bridge circuit and a method for its operation are presented. The half bridge circuit contains a high-side switch, a latch for providing a drive signal for the high-side switch, a first transistor device acting as a level shifter for shifting a voltage level at an input of the latch. The first transistor device is coupled between a supply voltage level and ground, and the voltage level at the input of the latch is shifted in accordance with a current that flows through the first transistor device. A second transistor device is coupled between the supply voltage level and ground, in parallel to the first transistor device. There is a current mirror for mirroring a current that flows through the second transistor device. There is a circuit path for feeding the mirrored current to an intermediate node between the supply voltage level and the first transistor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.