CR OSCILLATION CIRCUIT

In a CR oscillation circuit, resistance elements forming a series circuit include a first resistance element having a large temperature coefficient of resistance and a second resistance element having a smaller temperature coefficient of resistance than the first resistance element. At least one of...

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Bibliographic Details
Main Author MATSUO KAZUSHI
Format Patent
LanguageEnglish
Published 20.11.2014
Subjects
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:In a CR oscillation circuit, resistance elements forming a series circuit include a first resistance element having a large temperature coefficient of resistance and a second resistance element having a smaller temperature coefficient of resistance than the first resistance element. At least one of a capacitor and an oscillation resistance element is trimmable. A first switching circuit connected between the series circuit and a non-inverting input terminal of a comparator is turned on when an output signal of the comparator is at a high level, and a second switching circuit is turned on when the output signal is at a low level.
Bibliography:Application Number: US201214361411