Techniques for measuring voltage over a power switch using zero current detection point
US11867762B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2022 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Nov 18, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method may comprise: controlling ON/OFF switching of a power switch via a driver circuit; receiving a first signal on a detection pin associated with the power switch, wherein the first signal corresponds to a first point in time when current is not passing through the power switch and wherein the first signal indicates a first voltage drop over one or more other circuit elements; receiving a second signal on the detection pin, wherein the second signal, wherein the second signal corresponds to a second point in time when current is passing through the power switch and wherein the second signal indicates a voltage drop over the power elements; and determining the voltage drop over the power switch based on a difference between the first signal and the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.