Dynamic Voltage Margin Recovery

An integrated circuit may include multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to mon...

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Bibliographic Details
Main Authors Murray, Daniel C, Mylius, John H, Lee, Jong-Suk, Ziesler, Conrad H, Kumar, Rohit
Format Patent
LanguageEnglish
Published 20.04.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:An integrated circuit may include multiple instances of a component (e.g. a processor) and a control circuit. The instances may be configured to operate in various modes. Some of the modes are incapable of presenting a worst-case load on the power supply. The control circuit may be configured to monitor the instances and detect the modes in which the instances are operating. Based on the monitoring, the control circuit may request to recover a portion of the voltage margin established for worst-case conditions in the instances. If the instances are to change modes, they may be configured to request mode change from the control circuit. If the mode change causes an increase in the current supply voltage magnitude (e.g., to restore some of the recovered voltage margin), the control circuit may cause the restore and permit it to complete prior to granting the mode change.
Bibliography:Application Number: US202217821394