Power switch having cascoded transistors of a same condictivity type, each of the cascoded transistors having its source tied to its body
US12308831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2022 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Oct 4, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018521
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power switch includes a first transistor having a first current electrode corresponding to an output of the switch, a second transistor having a first current electrode coupled to a second current electrode of the first transistor, and a third transistor having a first current electrode coupled to a second current electrode of the second transistor and a second current electrode coupled to a first power supply voltage terminal which provides a first power supply voltage. The second current electrodes of each of the first, second, and third transistors are body-tied. An analog switch is either couples the second current electrode of the second transistor or a first reference voltage to a control electrode of the second transistor based on a control signal. A voltage selector circuit either couples the second current electrode of the first transistor or the first reference voltage to a control electrode of the first transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.