Analogue oscillator circuit

The circuit includes a capacitor (C1) connected on one side to a common ground (GND) and on the other to a summing node (VO1). The npn reference transistor (Q6) has it's emitter connected to the voltage supply (Vcc) and it's collector is connected to the output of a temperature compensatio...

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Bibliographic Details
Main Author KIM, SU-GYEONG, SEOUL/SOUL, KR
Format Patent
LanguageEnglish
German
Published 02.01.1997
Edition6
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
GENERATION OF NOISE BY SUCH CIRCUITS
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER
PULSE TECHNIQUE
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Summary:The circuit includes a capacitor (C1) connected on one side to a common ground (GND) and on the other to a summing node (VO1). The npn reference transistor (Q6) has it's emitter connected to the voltage supply (Vcc) and it's collector is connected to the output of a temperature compensation unit (10). The compensation unit produces a reference current independent of the temperature. The base and the collector are connected to produce a reference node. A pnp current source transistor (I1) is connected between the voltage supply and the node, for charging the capacitor. A second similar transistor (I2) connected between the voltage supply and the node is used for discharging the capacitor.
Bibliography:Application Number: DE1996126102