Power-Gated Electronic Device

A power-gated electronic device and a method of operating the same is provided. The power-gated electronic device comprises a low drop out voltage power supply (LDO), an auxiliary power supply and at least one electronic domain having a power gate. The LDO provides a supply voltage to the at least o...

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Bibliographic Details
Main Authors DORNSEIFER FRANK, GERBER JOHANNES
Format Patent
LanguageEnglish
Published 17.10.2013
Subjects
CALCULATING
COMPUTING
CONTROLLING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:A power-gated electronic device and a method of operating the same is provided. The power-gated electronic device comprises a low drop out voltage power supply (LDO), an auxiliary power supply and at least one electronic domain having a power gate. The LDO provides a supply voltage to the at least one electronic domain which is coupled to a supply rail of the LDO via a switch, acting as a power gate. The auxiliary power supply comprises at least one current source which is coupled to the electronic domain via an auxiliary switch acting as an auxiliary power gate. The auxiliary power supply is configured to control the auxiliary switch as a function of a voltage difference between a reference voltage and the auxiliary supply voltage.
Bibliography:Application Number: US201213446378