专利名称：Power supply detection circuitry and
method
发明人：Hemangi Umakant Gajjewar,Gus Yeung申请号：US12801606申请日：20100616公开号：US08479033B2公开日：20130702
专利附图：
摘要：When switching a power supply rail for a processing circuit from a first voltagelevel to a second voltage level, power level detection circuitry detects when the supplyvoltage level reaches a predetermined voltage level. The power level detection circuitry
comprises a first transistor and a second transistor which compete with one another suchthat the first transistor pulls a signal node voltage level at a signal node towards thesupply voltage level while the second transistor pulls the signal node voltage leveltowards an external power supply voltage level. When the supply voltage level on thepower supply rail reaches the predetermined voltage level, the first transistorovercomes the second transistor to trigger a ready signal indicating that the supplyvoltage level has reached the predetermined voltage level.
申请人：Hemangi Umakant Gajjewar,Gus Yeung
地址：Sunnyvale CA US,Austin TX US
国籍：US,US
代理机构：Nixon & Vanderhye P.C.
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