OSCILLATION DETECTION CIRCUIT

An oscillation detection circuit according to the present invention has a differential circuit by a bipolar transistor where oscillation output of an oscillation circuit is inputted; a capacitance element that is connected to an output terminal of this differential circuit and charges or discharges...

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Bibliographic Details
Main Authors FUKUSHIMA KOICHI, HASEGAWA EIICHI
Format Patent
LanguageEnglish
Published 28.01.2010
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PULSE TECHNIQUE
TESTING
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Summary:An oscillation detection circuit according to the present invention has a differential circuit by a bipolar transistor where oscillation output of an oscillation circuit is inputted; a capacitance element that is connected to an output terminal of this differential circuit and charges or discharges in response to potential of the output terminal; and a detection circuit that detects a desired oscillation state of an oscillation signal terminal based on potential of this capacitance element.
Bibliography:Application Number: US20090502417