Invention Grant
- Patent Title: Fast bleed of power rails
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Application No.: US17973943Application Date: 2022-10-26
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Publication No.: US12135596B2Publication Date: 2024-11-05
- Inventor: James L. Petivan, III , Yun Guo , Isaac Q. Wang , Hang Li , Ronald Paul Rudiak , Justin Whittenberg
- Applicant: Dell Products L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Larson Newman, LLP
- Main IPC: G06F1/30
- IPC: G06F1/30 ; H02M1/00 ; H02M1/088 ; H02M3/155 ; H02M3/156 ; H03K3/017

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.
Public/Granted literature
- US20240143057A1 FAST BLEED OF POWER RAILS Public/Granted day:2024-05-02
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