Power supply for integrated circuit
US8890495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2013 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/46
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A power supply that provides a supply voltage to an integrated circuit (IC) includes high and low power regulators and a power management circuit. The high power regulator regulates the supply voltage at a first voltage level and the low power regulator is set to an inactive mode when the IC is in a RUN mode. When the IC transitions from the RUN mode to a STOP mode, the high power regulator stops regulating and the supply voltage is maintained at a second voltage level, while the lower power regulator is set to an active mode for regulating the supply voltage at a third voltage level. A fallback signal is generated when the supply voltage drops below a first threshold value after which the low power regulator is set in the inactive mode and the high power regulator is configured to regulate the supply voltage at a fourth voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.