Title :
A Novel Loop Gain-Adjusting Application Using LSB Tuning for Digitally Controlled DC–DC Power Converters
Author :
Lin, Yu-Cheng ; Chen, Dan ; Wang, Yen-Tang ; Chang, Wei-Hsu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
An application was proposed and implemented to digitally adjust the dc loop gain while keeping the loop stability behavior intact in dc converters. This is accomplished by tuning the least significant bit of the digital compensator. This can be done while the converter is in operation and, therefore, a converter with variable dc load line can be obtained. Experimental results verified the validity of the proposed method.
Keywords :
DC-DC power convertors; LSB tuning; dc loop gain; digital compensator; digitally controlled dc-dc power converters; loop gain-adjusting application; loop stability behavior; variable dc load line; Finite wordlength effects; Gain measurement; Stability analysis; Switches; Transfer functions; Tuning; Voltage control; DC–DC power converter; dc loop gain; digital control; truncation error;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2011.2158034
