Managing on-chip power rail between internal power supply and external power supply
US11300987B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/562
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system may include an integrated circuit comprising an on-chip power supply and an internal power rail, a gate-controlled supply switch configured to be coupled between the on-chip power supply and an external power supply such that the internal power rail is regulated by the on-chip power supply when the gate-controlled supply switch is open and the internal power rail is regulated by the external power supply when the gate-controlled supply switch is closed, and a control circuit configured to monitor conditions associated with the on-chip power supply when the gate-controlled supply switch is transitioning between switch states and based on the conditions, control a rate of charging or discharging of a capacitance coupled to a gate of the gate-controlled supply switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.