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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Active-filter tuned oscillator ： ウィキペディア英語版 Active-filter tuned oscillator An active-filter tuned oscillator is an active electronic circuit designed to produce a periodic signal. It consists of a bandpass filter and an active amplifier such as an OP-AMP or a BJT. The oscillator is commonly tuned to a specific frequency by varying the reactant of the feedback path within the circuit. An example is the Colpitts oscillator. == Properties == An oscillator is any device or system that produces a periodic output. In a tuned oscillator, the period of the output may be controlled by altering the system's resonant frequency. In the case of a tunable electronic oscillator, this is most commonly achieved by altering the circuit's capacitance. As with all oscillators, active-filter tuned oscillators adhere to the Barkhausen stability criterion, which states that to maintain oscillation the loop gain must be unity and the phase shift must be 0 or a multiple of 2π. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Active-filter tuned oscillator」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.