Circuit for selecting a power supply voltage having a controlled transition
US10127953B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Nov 13, 2018 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage selection circuit, including: first and second nodes of application of first and second input voltages; a third output voltage supply node; first and second MOS transistors respectively coupling the first and third nodes and the second and third nodes; and a control circuit capable of keeping the first and second transistors either respectively on and off or respectively off and on, the control circuit including a feedback loop from the third node to the gate of the first transistor and being capable, during a transition phase, of controlling the first transistor in linear operating region to apply a DC voltage ramp to the third node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.