【正文】
10612050__________ 學(xué)生姓名: ___覃超 ______________ 聯(lián)系電話: _ 15177686477________ 指導(dǎo)老師: __ 黃杰 _______________ 完成日期: 2021 年 06 月 20 日 I OCL 功率放大器的設(shè)計(jì) 摘 要 無輸出電容( OCL)功率放大器是在 OTL 功率放大器的基礎(chǔ)上發(fā)展起來的一種全音頻直接耦合低頻功率放大器,在高保真擴(kuò)音系統(tǒng)中得到了廣泛應(yīng)用。OCL 功率放大 器的放大原理與 OTL 功率放大器基本相同,主要區(qū)別是 OCL 采用了雙電源,省去了輸出電容,獲得了良好的頻率特性的同時(shí)引出了 0CL 功率放大器特有的“零點(diǎn)漂移”問題,因此設(shè)計(jì)電路時(shí)應(yīng)注意抑制零點(diǎn)漂移。 關(guān)鍵詞 : 功率放大器;分立元件 ,恒流源; OCL; Proteus ABSTRACT no output capacitance (the OCL) power amplifier is in power amplifier OTL developed on the basis of a full audio frequency power amplifier directly coupled, in high fidelity loudspeaker system has been widely used. The power of the DaQi repeatedly OCL OTL power amplifier amplification principle and basic same, the main difference is the OCL double power supply, tell the output capacitance, have the good frequency characteristics of the derivation of the unique power amplifier CL 0 zero drift problem, so circuit design should pay attention to the inhibition zero drift. Borrow simulation software to circuit analysis and test of virtual experiment, to achieve the desired objectives. Keywords: power amplifier。 OCL。 ..................................................................................................... 8 4 系統(tǒng)測(cè)試 ...................................................................................................................... 9 ....................................................................................