用感性開關(guān)電容的正弦波振蕩器
AN INDUCTIVE SWITCHED-CAPACITOR OSCILLATOR
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摘要: 正 (一)引言 開關(guān)電容(SC)濾波器在1977年被重新提出后,受到了極大的注意。最近,一些作者又利用開關(guān)電容方法來實(shí)現(xiàn)別的模擬電路,如正弦波振蕩器、過零檢波器和峰值檢波器、跟蹤濾波器、鎖相環(huán)和平衡解調(diào)器、壓控張弛振蕩器,以及模擬延遲線等。 本文描述一種采用感性開關(guān)電容的正弦波振蕩器。與文獻(xiàn)[3]中采用并聯(lián)開關(guān)電容的方案相比,由于感性開關(guān)電容在一個(gè)時(shí)鐘周期Tc內(nèi),完成兩次信息傳輸,因而預(yù)期
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關(guān)鍵詞:
Abstract: An inductive switched-capacitor (i.e., terminal-inverter SC) oscillator is described in this paper. It is found that the amplitude equation is independent of the capacitor ratio and high-frequency components introduced by the sampling process are about 50 percent lower than those of a parallel SC oscillator. -
B. J. Hosticka, R. W. Broderson and P. R. Gray, IEEE J. of SC, SC-12(1977), 600.[2]J. T. Caves, M. A. Copeland, C. F. Rahim and S. D. Rosenbaum, IEEE J. of SC, SC-12(1977),592.[3]E. A. Vittoz, IEEE J. of SC, SC-14(1979), 622.[4]B. J. White, G. M. Jacobs and G. F. Landburg, IEEE J. of SC, SC-14(1979), 991.[5]K. Martin and A. Sedra, IEEE Trans. on CAS, CAS-28(1981), 576.[6]K. Martin, IEEE J. of SC, SC-16(1981), 412.[7]T. Enomoto, T. Ishihara and Masa-Aki Yasumoto, Electronics Letters, 18(1982), 194.[9]W. D. Stanley著,常迵譯,數(shù)字信號(hào)處理,科學(xué)出版社,1979年. -
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