Multi-core oscillator with transient supply voltage assisted mode switching

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United States of America Patent

PATENT NO 11909355
APP PUB NO 20230091463A1
SERIAL NO

17942850

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Abstract

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To prevent an undesired operating mode of voltage-controlled oscillation (VCO) circuitry from dominating a desired operating mode (e.g., an in-phase operating mode or an out-of-phase operating mode), a supply reset and ramp pulse may be provided to the VCO circuitry when switching to a new mode, such that supply voltage to the VCO circuitry is reset (e.g., set to 0 V or another reference voltage), and gradually increased or ramped up back to a steady-state voltage (e.g., used to maintain a mode) within a time duration. Additionally or alternatively, a switch control bootstrap pulse may be provided to the VCO circuitry that is bootstrapped to (e.g., applied instantaneously or concurrently with) switching the VCO circuitry to the new mode. After a time duration, the VCO circuitry may switch back to a steady-state voltage (e.g., used to maintain the new mode).

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Patent Owner(s)

Patent OwnerAddress
APPLE INCCALIFORNIA USA CALIFORNIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Komijani, Abbas Mountain View, US 65 752
Wang, Hongrui San Jose, US 42 50

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