標題: 99% High Accuracy Knee Voltage Detection for Primary-side Control in Flyback Converter
作者: Tsai, Tsung-Hsun
Chen, Ke-Horng
Tsai, Tsung-Yen
Lin, Jian-Ru
Lin, Ying-Hsi
Lee, Chao-Cheng
Tseng, Pei-Ling
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2015
摘要: this paper proposed the adaptive knee voltage detection (KVD) technique to improve the output voltage accuracy of the primary side regulator. Owing to the insertion of the snubber circuit for reducing overshoot voltage, conventional KVD technique fails to get the output voltage information and thus to deteriorate the output voltage accuracy. Analysis of the snubber circuit and the resonance of the primary side can determine the band-pass filter in the proposed AKVD technique to get high accuracy output information without being affected by any kinds of resonances. Test chip designed in VIS 0.5 mu m BCD process demonstrates the accuracy of the output voltage higher than 99%. Besides, any abnormal detection won\'t happen and thus the output ripple can be kept low.
URI: http://hdl.handle.net/11536/134768
ISBN: 978-1-4799-8391-9
ISSN: 0271-4302
期刊: 2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
起始頁: 1754
結束頁: 1757
Appears in Collections:Conferences Paper