Third-order quadrature oscillator with grounded capacitors using CCIIs

  • Authors:
  • Jiun-Wei Horng;Chun-Li Hou;Chun-Ming Chang;Sheng-Wen Pan;Jhen-Yu Shie;Yao-Hsin Wen

  • Affiliations:
  • Department of Electronic Engineering, Chung Yuan Christian University, Chung-Li, Taiwan;Department of Electronic Engineering, Chung Yuan Christian University, Chung-Li, Taiwan;Department of Electrical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan;Department of Electronic Engineering, Chung Yuan Christian University, Chung-Li, Taiwan;Department of Electronic Engineering, Chung Yuan Christian University, Chung-Li, Taiwan;Department of Electronic Engineering, Chung Yuan Christian University, Chung-Li, Taiwan

  • Venue:
  • IMCAS'07 Proceedings of the 6th WSEAS International Conference on Instrumentation, Measurement, Circuits and Systems
  • Year:
  • 2007

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Abstract

A new third-order quadrature oscillator is presented. Outputs of two sinusoids with 90° phase difference are available in the quadrature oscillator circuit. The oscillation condition and oscillation frequency are orthogonal controllable. The proposed circuit employs only grounded capacitors and is ideal for integration. Experimental results are included to confirm the theoretical analysis.