基于西勒振蕩器的高頻功率放大電路設(shè)計(jì)
崔順，莫岳平，史宏俊，朱肖陳，梁可
（揚(yáng)州大學(xué) 水利與能源動(dòng)力工程學(xué)院，江蘇 揚(yáng)州 225127）
摘 要：根據(jù)正弦波振蕩電路的起振原理，設(shè)計(jì)了西勒振蕩器，作為高頻功率放大電路的輸入端。利用射極跟隨器可連接于兩電路中間起緩沖作用的特性，設(shè)計(jì)了緩沖電路。整個(gè)設(shè)計(jì)末端，用一個(gè)丙類諧振功放來(lái)進(jìn)一步增強(qiáng)輸出電壓和輸出功率。采用LTspice 軟件對(duì)設(shè)計(jì)的高頻功率放大電路特性進(jìn)行模擬仿真與分析，驗(yàn)證了理論分析的正確性與可行性。
關(guān)鍵詞：西勒振蕩電路；射極跟隨器；丙類諧振功率放大器；LTspice 仿真
中圖分類號(hào)：TN722 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2016)09-0029-04
Design of High Frequency Power Amplifier Based on
Seiler Oscillator
CUI Shun, MO Yue-ping, SHI Hong-jun, ZHU Xiao-chen, LIANG Ke
（School of Hydraulic Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China）
Abstract: According to the vibration principle of sine wave oscillation circuits, the Seiler oscillator circuit was designed to act as the input terminal of high frequency power amplifier. The Emitter follower could be connected to the middle of the two circuits to become the buffer circuit. At the end of the whole design, the output voltage and output power could be further enhanced by a class C resonant power amplifier. The software, LTspice was adopted to carry out simulation and analysis for the designed circuit characteristics of the high frequency power amplifier, which verifies the validity and feasibility of the theoretical analysis.
Key words: Seiler oscillator circuit; emitter follower; class C resonant power amplifier; LTspice simulation
參考文獻(xiàn)
[1] 康浩. 高頻功率放大器的研究與實(shí)現(xiàn)[D]. 武漢：武漢工業(yè)學(xué)院，2007.
[2] 冉晟伊，熊于菽. 常用LC 正弦波振蕩器的特點(diǎn)[J].科技傳播，2010(19)：109.
[3] 任丹. 基于Multisim 的高頻功率放大器特性分析[J].遼東學(xué)院學(xué)報(bào)( 自然科學(xué)版)，2011，18(2)：114-117.
[4] 莊海軍. 基于軟件仿真的高頻功率放大器設(shè)計(jì)[J].電子工程師，2008，34(11)：33-34.
