A Sinusoidal Nonlinear Oscillator with Adjustable Frequency

ผู้แต่ง

  • Nithima Hanmeng Department of Control Engineering, Faculty of Engineer, King’s Mongkut Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
  • Poramate Pranayanuntana Department of Control Engineering, Faculty of Engineer, King’s Mongkut Institute of Technology Ladkrabang, Bangkok 10520, Thailand.

คำสำคัญ:

OTA, describing function, nonlinear oscillator, frequency adjustment

บทคัดย่อ

A sinusoidal nonlinear oscillator with adjustable frequency was studied. The frequency of oscillation was adjusted via the change of the center frequency of the second order band-pass filter, while keeping the quality factor constant. The describing function method was used to predict the limit cycles and to analyze the stability of oscillation. The proposed circuit consisted of two important parts in the feedback connection configuration: an operational transconductance amplifier (OTA) as a nonlinear element in feedback path; and a bandpass filter in the feedforward path. The experimental results were simulated by the ORCAD CAPTURE and MATLAB computer programs.

ดาวน์โหลด

เผยแพร่แล้ว

2009-12-31

รูปแบบการอ้างอิง

Nithima Hanmeng, และ Poramate Pranayanuntana. 2009. “A Sinusoidal Nonlinear Oscillator with Adjustable Frequency”. Agriculture and Natural Resources 43 (5). Bangkok, Thailand:372-78. https://li01.tci-thaijo.org/index.php/anres/article/view/244845.

ฉบับ

ปีที่ 43 ฉบับที่ 5 (2009): January-December

ประเภทบทความ

Research Article

สัญญาอนุญาต

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