Integrated circuit wake-up control system
US9252774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | May 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3287
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An integrated circuit (IC) that operates in high and low power modes includes high and low power regulators, first and second sets of circuits, a switch connecting the high power regulator and the second set of circuits, and a wake-up control system. The wake-up control system includes a state machine that enables the high power regulator when the IC is in the high power mode, and enables the low power regulator when the IC is in the low power mode. The switch is closed when the high power regulator reaches a first threshold voltage. The state machine operates on a low frequency clock signal when the IC is in the low power mode and during wake-up, and on a high frequency clock signal in the high power mode after the switch is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.