AN OSCILLATOR HAVING SINGLE PARAMETER TUNING MEANS

专利名称：AN OSCILLATOR HAVING SINGLE

PARAMETER TUNING MEANS

发明人：WILHELMUS ANTONIUS JOSEPH MARIE

ZWLISEN

申请号：US3639859D申请日：19690828公开号：US3639859A公开日：19720201

摘要：An oscillator having a first phase-shifting network, an inverting amplifier and asecond phase-shifting network comprising two impedances; one of the impedances isexternally adjustable and determines the frequency of the oscillator signal. A total phaseshift of 180 DEG is achieved by means of the first phase-shifting network which provides aphase shift of substantially 90 DEG in a frequency independent manner and by the secondphase-shifting network which provides an additional phase shift of substantially 90 DEG ina frequency-dependent manner.

申请人：U.S. PHILIPS CORP.

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