Power supply switch circuit and operating method thereof
US12132476B2 · kind B2 · utility
0Cited by
5References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2022 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Mar 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/511
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power supply switch circuit includes a first transistor that switches supplying of a first power supply voltage to a power supply terminal of a power amplifier, a switch controller that controls the first transistor and to which a second power supply voltage is applied, and a voltage selector that selects a higher voltage among the first power supply voltage and the second power supply voltage. The selected higher voltage is applied to a body terminal of the first transistor or a gate terminal of the first transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.