Fast bleed of power rails
US12135596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2022 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Feb 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage regulator system of an information handling system includes a Smart Power Stage (SPS) and a voltage regulator controller. The SPS includes a high-side transistor and a low-side transistor. The voltage regulator controller detects a normal power down of the information handling system and sets bleed state for the SPS to a first state. Based on the bleed state being set to the first state, the voltage regulator controller provides a first control voltage to the low-side transistor and a second control voltage to the high-side transistor. The first control voltage causes the low-side transistor to be fully turned on, and the second control voltage causes the high-side transistor to be in a linear region. In response to a predetermined amount of time expiring, the voltage regulator controller enters the SPS in an idle mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.