Rc-oscillator circuit

Rc-oscillator circuit

An RC oscillator circuit is described in which a charge current (IPOSC 1 ) is integrated in an integrator ( 1 ). In a comparator ( 7 ), an output voltage (VCAP) of the integrator is compared to a reference threshold (VTH). Depending on the comparison, a periodic signal is generated in a clock pulse...

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Hauptverfasser: D'ABRAMO PAOLO, SERVENTI RICCARDO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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creator D'ABRAMO PAOLO
SERVENTI RICCARDO
description An RC oscillator circuit is described in which a charge current (IPOSC 1 ) is integrated in an integrator ( 1 ). In a comparator ( 7 ), an output voltage (VCAP) of the integrator is compared to a reference threshold (VTH). Depending on the comparison, a periodic signal is generated in a clock pulse generator ( 9 ). Furthermore, a reference generator ( 8 ) is provided, which generates the reference threshold (VTH) depending on the temperature and on the supply voltage of the entire circuit. In this way, the frequency dependence of the oscillator is largely compensated for as far as fluctuations in the supply voltage are concerned.
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Depending on the comparison, a periodic signal is generated in a clock pulse generator ( 9 ). Furthermore, a reference generator ( 8 ) is provided, which generates the reference threshold (VTH) depending on the temperature and on the supply voltage of the entire circuit. 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In a comparator ( 7 ), an output voltage (VCAP) of the integrator is compared to a reference threshold (VTH). Depending on the comparison, a periodic signal is generated in a clock pulse generator ( 9 ). Furthermore, a reference generator ( 8 ) is provided, which generates the reference threshold (VTH) depending on the temperature and on the supply voltage of the entire circuit. In this way, the frequency dependence of the oscillator is largely compensated for as far as fluctuations in the supply voltage are concerned.</abstract><oa>free_for_read</oa></addata></record>
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subjects BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
title Rc-oscillator circuit
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