Power switch with current limitation and zero direct current (DC) power consumption
US9092043B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Oct 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/468
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Power switches with current limitation and zero Direct Current (DC) power consumption. In an embodiment, an integrated circuit includes switching circuitry coupled between a voltage supply node and a given one of a plurality of power domains, the switching circuitry configured to limit an amount of current drawn by the given power domain from the voltage supply node during a transition period, the switching circuitry further configured to consume zero DC power outside of the transition period. In another embodiment, a method includes controlling, via a switching circuit coupled between a voltage supply and an integrated circuit, an amount of current drawn by the integrated circuit from the voltage supply during a transition period; and causing the switching circuit to consume no static power during periods of time other than the transition period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.