公开(公告)号：US3639859A

公开(公告)日：1972-02-01

申请号：US3639859D

申请日：1969-08-28

Applicant: PHILIPS CORP

Inventor： ZWLISEN WILHELMUS ANTONIUS JOS

IPC: H03B5/00 ,  G08C19/12 ,  H03B1/00 ,  H03B5/20 ,  H03B5/24 ,  H03B27/00

CPC classification number: H03B5/24 ,  H03B27/00 ,  H03B2200/0078 ,  H03B2201/02 ,  Y10S148/103

Abstract: An oscillator having a first phase-shifting network, an inverting amplifier and a second phase-shifting network comprising two impedances; one of the impedances is externally adjustable and determines the frequency of the oscillator signal. A total phase shift of 180* is achieved by means of the first phase-shifting network which provides a phase shift of substantially 90* in a frequency independent manner and by the second phase-shifting network which provides an additional phase shift of substantially 90* in a frequency-dependent manner.

Abstract translation: 具有第一相移网络，反相放大器和包括两个阻抗的第二相移网络的振荡器; 其中一个阻抗可由外部调节，并确定振荡器信号的频率。 通过第一移相网络实现180°的总相移，该网络以频率独立的方式提供大致90°的相移，并且通过第二移相网络提供基本上90°的附加相移 以频率依赖的方式。