Oscillator circuit, device and method for generating an oscillator signal

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United States of America Patent

PATENT NO 12047078
APP PUB NO 20230246634A1
SERIAL NO

18011021

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Abstract

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An oscillator circuit includes a current controller, a first capacitor and a second capacitor. A current generator is coupled to the current controller, the first and the second capacitor, and is operable, under control of a control signal of the current controller, provide charging currents. A comparator stage comprises a first input coupled to the first capacitor, a second input coupled to the second capacitor and a reference input to be supplied with the reference voltage. The comparator stage further includes an oscillator output to provide a clock signal based on a comparison of the capacitor voltages and the reference voltage, respectively. A modulation circuit comprises an oscillator input to input the clock signal, a reference output is connected to the current generator, and is operable to alternate between the charging currents, such that a charging current is provided as reference current at the reference output and at least one charging current is provided to alternately charge/discharge the first capacitor and the second capacitor to respective capacitor voltages.

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Patent Owner(s)

Patent OwnerAddress
AMS INTERNATIONAL AGEICHWIESSTRASSE 18B JONA 8645

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zhang, Cheng Graz, AT 365 3456

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