Digital clamp for state retention
US9722606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/0008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Described is an apparatus which comprises: a clamp coupled between a first power supply and a second power supply, the clamp including a plurality of transistors, a circuit to operate with the second power supply; and a control unit to turn on and off the plurality of transistors to adjust the second power supply when the apparatus enters a low power mode. The control unit includes a first comparator to compare the second power supply with a first reference, a second comparator to compare the second power supply with a second reference, and a counter. The counter counts up when the second power supply is higher than the first reference and counts down when the second power supply is lower than the second reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.