首页> 外文OA文献 >Inductive compensation of operational amplifiers in feedback circuits
【2h】

Inductive compensation of operational amplifiers in feedback circuits

机译:反馈电路中运算放大器的电感补偿

摘要

In this thesis I designed, implemented, and tested an integrated-circuit feedback compensator that uses inductors as compensation elements. Introducing inductors as feedback elements makes it possible to implement lead compensators using shunt topologies, which preserve the closed loop response of a system while compensating the open loop characteristics. My chip consisted of a marginally unstable two-pole amplifier, and a compensated but otherwise identical amplifier. Comparing the step responses of the original and compensated systems proved that the compensator successfully stabilized the unstable system. I used frequency domain analysis to determine how much phase margin my compensator added to the system. After characterizing and canceling out the effects of input and output loading, and the attenuation of my output buffer, I found that my compensator added 41.40 of phase to the system. This was less than the 65° that it was designed for, but more than enough to prove the feasibility of my design.
机译:在本文中,我设计,实现和测试了一种将电感器用作补偿元件的集成电路反馈补偿器。通过引入电感器作为反馈元件,可以使用并联拓扑结构来实现引线补偿器,从而可以在补偿开环特性的同时保留系统的闭环响应。我的芯片由一个极不稳定的两极放大器和一个补偿后但完全相同的放大器组成。比较原始系统和补偿系统的阶跃响应证明,补偿器成功地稳定了不稳定系统。我使用频域分析来确定我的补偿器添加到系统中的相位裕量。在表征并消除了输入和输出负载的影响以及输出缓冲器的衰减之后,我发现我的补偿器为系统增加了41.40的相位。这个角度小于设计的65°,但足以证明我的设计的可行性。

著录项

  • 作者

    Adams Douglas Jay Kozak;

  • 作者单位
  • 年度 2010
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号