Ｎ次の任意のフェース・シフト正弦波オシレータの構造とその分析合成による製作方法

Japanese Patent JP5815925

B2

Nth-order voltage- and current-mode arbitrary phase shift oscillator structures are synthesized using n operational trans-conductance amplifiers (OTAs) or second-generation current controlled conveyors (CCCIIs) and n grounded capacitors. Linking up the I/O characteristics of the OTA and the CCCII and the reactance of grounded capacitor, the step of synthesis is first based on the algebraic analysis to oscillatory characteristic equations, resulting in a quadrature oscillator structure. Secondly, instead of the quadrature characteristic, to control each output signal with one another by a desired phase difference > or < 90°, selectively superposing any of two fundamental OTA/CCCII-C sub-circuitries benefits the transformation of quadrature to arbitrary-phase-shift characteristic for the sinusoidal oscillator structure. Furthermore, several compensation schemes are presented for reducing the output parameter deviation due to the non-ideal effects.

Toshiaki Zhang
To Yoshie

JP2010094524A

November 17, 2015

April 16, 2010

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Nakahara University

H03B27/00

JP2007282244A
JP2005505965A

Knobnob, B. ; Kunmgern, M. ; Dejhan, K.,Current-Mode Quadrature Oscillator Using Translinear Current Conveyors ,Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on ,2008年10月23日,p.196-199
Kumngern, M. ; Dejhan, K.,OTAs-based current-mode quadrature oscillator ,Intelligent Signal Processing and Communications Systems, 2008. ISPACS 2008. International Symposium on ,2009年 2月11日,p.1-4

Murai Koji
Atsushi Tadokoro

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