Voltage droop reduction with a secondary power supply
US11640834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2020 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Mar 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/01
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A droop reduction circuit on a die includes a voltage detector circuit to detect voltage droop in a supply voltage received by a first load. The droop reduction circuit further includes a driver controller circuit to drive power switch (PSH) banks in response to detection of the voltage droop. Each of the PSH banks includes at least one power switch having an input terminal, a gate terminal, and an output terminal. The input terminal is to receive a secondary voltage, which is higher than the supply voltage and is also received by a second load on the die. The gate terminal is to receive a drive signal from the driver controller, and the output terminal is to pull up the voltage droop in the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.