Application of Adaptive Filter at Buck DC/DC Converters – System Configuration and Design

• Main Authors: Kuo-Tsun Liu, 劉國村
• Other Authors: Ho-En Liao
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/18840954013726252638

碩士 === 逢甲大學 === 通訊工程所 === 97 === The content of the thesis is to apply adaptive filters in the implementation a feedback mechanism for DC-DC buck converters so that the converters are able to output stable designated DC voltage in variable environment conditions. The environment, which could interfere DC outputs, includes parameters of interior devices, e.g., locations of poles and zeros of filters,thermal noise generated by electronic devices, … etc., and outer environment conditions, e.g., temperature and humidity, load, electromagnetic interferences from other electronic devices, … etc. PID feedback controllers are pervasively used for the purpose of obtaining stable DC voltage from DC-DC converters, while the parameters of PID controllers are pre-designated and are not capable of adapting automatically to the varying environment. As for modern techniques development, precision is more and more seriously acquired, besides energy resources preservation is one of the most important courses in environmental protection, therefore the thesis is to study how to apply adaptive filter theory to optimize the converting efficiency of DC-DC converters so that they can be adapt to different and varying environments.