more membered low-pass filter for 3 to 4mhz bandwidth

• 1. 有源低通滤波器带宽校准电路 [P] . 中国专利： CN112332803A . 2021-02-05
• 2. 一种基于切比雪夫I型的带宽可调谐有源RC低通滤波器 [P] . 中国专利： CN113644896A . 2021-11-12
• 3. mehrgliedriges for 3 to 4mhz bandwidth lowpass filter [P] . 德国专利： DE000000936220B . 1955-12-07

  机译： 用于3至4MHz带宽低通滤波器的Mehrgliedriges

• 4. Phase-locked loop systems using adaptive low-pass filters in switched bandwidth feedback loops [P] . 美国专利： US8456204B2 . 2013-06-04

  机译： 在开关带宽反馈回路中使用自适应低通滤波器的锁相环系统

• 5. phasenregelkreissysteme with adaptive low-pass filters placed in feedbackschleifen with bandwidth [P] . AT545985T . 2012-03-15

  机译： 带有自适应低通滤波器的phasenregelkreissysteme带带宽放置在反馈波形中

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• 1. Comparative Study of Low-Pass Filter and Phase-Locked Loop Type Speed Filters for Sensorless Control of AC Drives [J] . Dong Wang ,Kaiyuan Lu ,Peter Omand Rasmussen . 中国电工技术学会电机与系统学报(英文) . 2017,第2期
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