具有外部增益控制的AB类BiCMOS PCS驱动放大器

AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360) Pub Date : 1999-08-23 DOI:10.1109/APASIC.1999.824033

Jin-Su Ko, Jeong-Keun Kim, B. Ko, Dong-Bin Cheon, Sang-Oh Lee, Byeong-ha Park

{"title":"具有外部增益控制的AB类BiCMOS PCS驱动放大器","authors":"Jin-Su Ko, Jeong-Keun Kim, B. Ko, Dong-Bin Cheon, Sang-Oh Lee, Byeong-ha Park","doi":"10.1109/APASIC.1999.824033","DOIUrl":null,"url":null,"abstract":"It is demonstrated that the gain of an amplifier with a large transistor cannot be controlled by bias current but can be controlled effectively by varying the effective emitter inductance. A simple method to control the gain of a driver amplifier is suggested and implemented. The measured gain variation is not less than 6 dB. However, that measured by the conventional method is only 0.5 dB. Using this gain control scheme, a class AB driver amplifier is designed for a PCS handheld phone.","PeriodicalId":346808,"journal":{"name":"AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A class AB BiCMOS PCS driver amplifier with external gain control\",\"authors\":\"Jin-Su Ko, Jeong-Keun Kim, B. Ko, Dong-Bin Cheon, Sang-Oh Lee, Byeong-ha Park\",\"doi\":\"10.1109/APASIC.1999.824033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"It is demonstrated that the gain of an amplifier with a large transistor cannot be controlled by bias current but can be controlled effectively by varying the effective emitter inductance. A simple method to control the gain of a driver amplifier is suggested and implemented. The measured gain variation is not less than 6 dB. However, that measured by the conventional method is only 0.5 dB. Using this gain control scheme, a class AB driver amplifier is designed for a PCS handheld phone.\",\"PeriodicalId\":346808,\"journal\":{\"name\":\"AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)\",\"volume\":\"26 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APASIC.1999.824033\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APASIC.1999.824033","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 4

摘要

结果表明，大晶体管放大器的增益不能由偏置电流控制，而可以通过改变有效发射极电感来有效控制。提出并实现了一种控制驱动放大器增益的简单方法。测量的增益变化不小于6db。然而，用传统的方法测量只有0.5 dB。利用该增益控制方案，设计了一个用于PCS手持电话的AB类驱动放大器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

A class AB BiCMOS PCS driver amplifier with external gain control

It is demonstrated that the gain of an amplifier with a large transistor cannot be controlled by bias current but can be controlled effectively by varying the effective emitter inductance. A simple method to control the gain of a driver amplifier is suggested and implemented. The measured gain variation is not less than 6 dB. However, that measured by the conventional method is only 0.5 dB. Using this gain control scheme, a class AB driver amplifier is designed for a PCS handheld phone.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

AP-ASIC'99. First IEEE Asia Pacific Conference on ASICs (Cat. No.99EX360)

自引率

0.00%

发文量