Browse > Article
http://dx.doi.org/10.6113/TKPE.2011.16.1.88

Stable Standby-mode Implementation of Multi-output Power Supply using a New Load Current Estimation Technique with Linear Regulator  

Lee, Jong-Hyun (숭실대 전기공학부)
Jung, An-Yeol (숭실대 전기공학부)
Kim, Dong-Joon (숭실대 전기공학부)
Park, Joung-Hu (숭실대 전기공학부)
Jeon, Hee-Jong (숭실대 전기공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.16, no.1, 2011 , pp. 88-95 More about this Journal
Abstract
In this paper, a new standby-mode control method for multiple output switching-mode power-supply is suggested, which uses the control signal of the feedback compensator of the inner loop in the linear voltage regulator located at the transformer secondary side, as the load current information. Conventional method has a problem that standby mode occurs depending only on the load condition of the main controller output, which makes the other secondary side output very inaccurate by burst mode operation. The proposed method detects all the load current information and operates in burst mode only when the all of them are light load condition. Minimum of the additional components are required for the implementation of the proposed method because the load information is obtained from the existing feedback circuit of the post-stage linear regulator. In this paper, the operating principles of the proposed standby-mode circuit are presented with an numerical analysis, and are verified by 25W hardware prototype implementation.
Keywords
Multiple-output; Switching mode power supply; Linear regulator; Standby power;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 Roberts W. Erickson, Dragan Maksimovic, Fundamentals of power electronics second edition, KAP Inc., 2001.
2 Chester Simpson, "Linear and switching voltage Regulator Fundamentals", National Semiconductor, July 2006.
3 김남균, "국내 가전기기의 대기전력 현황과 전망", 전력전자학회지, 제11권, 제4호, 2006. 8
4 정봉근, 장상호, 김은수, 최문기, 계문호, "대기전력저감을 위한 플라이백 컨버터", 전력전자학회 논문지, 제14권, 제4호, pp. 299-306, 2009. 8.
5 박종후, 최성진, 조보형 "개선된 TFT-LCD 모니터 백라이트용 저가의 2단 인버터", 전력전자 추계학술대회, pp. 159-162, 2000. 11.
6 Hang-seok Choi, "Deign Guidelines for Quasi-Resonant converters Using KA5Q-series Fairchild Power Switch", Fairchild semiconductor Co., 2005.
7 N. Vazquez, H. Lopez, C. Hernandez and H. Calleja, "Multiple-Output DC-to-DC based on the Flyback Converter", CIEP 2008. 11th IEEE International, pp. 105-108, 24-27 Aug. 2008.
8 Jin-ho Choi, Dong-Young Huh and Young-Seok Kim "The Improved Burst Mode in the stand-by operation Of Power Supply", APEC '04 19th, pp. 426-432, 2004.
9 이성주, 김호진, 이해돈, 양승욱, 목형수, 최규하, "다출력 플라이백 컨버터를 위한 자동 동기 스위치 포스트 레귤레이터", 전력전자학회 논문지, 제11권, 제4호, pp. 321-327, 2006. 8.
10 윤영남 , 장두희, 노정욱, 한상규, 김종덕, 홍성수, "대기 전력 저감을 위한 자려발진 플라이백 컨버터", 전력전자학회 논문지, 제15권, 제1호, pp.1-8, 2010. 2.
11 정지훈, 최종문, 권중기, "다출력 컨버터의 대기전력 저감에 관한 연구", 전력전자학회 논문지, 제12권, 제6호, pp. 433-440, 2007. 12.
12 김봉철, 박기범, 문건우 "대기전력 최소화를 위한 새로운 제어기법", 전력전자학술대회 논문집, pp. 591-593, 2009. 7.
13 Bo-Teng Huang, Ko-Yen Lee and Yen-Shin Lai, "Design of a Two-Stage AC/DC Converter with Standby power Losses les than 1 W", PCC '07, pp. 1630-1635, 2-5 April 2007.
14 김영래, "국제 에너지효율 및 대기전력 규제동향", 전력전자학회지, 제11권, 제4호, 2006. 8
15 Hang-seok Choi and D.Y Huh, "Techniques to minimize Power Consumption of SMPS in standby Mode", PESC '05, IEEE 36th, pp. 2817-2822, 16 June 2005.