Invention Grant
- Patent Title: Distributed voltage regulation system for mitigating the effects of IR-drop
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Application No.: US15263466Application Date: 2016-09-13
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Publication No.: US10069409B2Publication Date: 2018-09-04
- Inventor: John F. Bulzacchelli , Michael A. Sperling , Zeynep Toprak Deniz
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Steven F. McDaniel; Arnold B. Bangali
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/02 ; H02M3/07

Abstract:
A distributed voltage regulator includes multiple micro-regulators disposed in a corresponding set of circuit sectors of an integrated circuit. Each micro-regulator provides current to the corresponding circuit sector at a current injection point. The regulator also includes a control module configured to receive feedback signals corresponding to a one or more sense points within each circuit sector and provide a control signal to each micro-regulator. The control module limits load-sharing imbalance within the plurality of micro-regulators. A voltage regulator with multiple sense points includes a micro-regulator that provides current at a current injection point, and a control module that receives feedback signals corresponding to a plurality of sense points and provides a control signal to the micro-regulator. The micro-regulator may comprise a charge pump that provides a local reference voltage that enables the micro-regulator to suppress local voltage drooping during feedback transitions (e.g., while switching between different feedback signals).
Public/Granted literature
- US20180076708A1 DISTRIBUTED VOLTAGE REGULATION SYSTEM FOR MITIGATING THE EFFECTS OF IR-DROP Public/Granted day:2018-03-15
Information query
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