The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Design and Making of PWM Control based Single Input/Single Output DC-DC Buck Converter with Multiple Output Voltage

다중 전압 출력을 가지는 PWM 제어 기반 단일 입력/단일 출력 강압형 DC-DC 컨버터 설계 및 제작

  • Ki-Won Nam ;
  • Jin-Woo Lee ;
  • Wan-Hyeok Kim ;
  • Tae-Keun Jang ;
  • Yun-Seok Ko (Dept. of Electronic Engineering, Namseoul University)
  • 남기원 (남서울대학교 전자공학과) ;
  • 이진우 (남서울대학교 전자공학과) ;
  • 김완혁 (남서울대학교 전자공학과) ;
  • 장태근 (남서울대학교 전자공학과) ;
  • 고윤석 (남서울대학교 전자공학과)
  • Received : 2024.06.18
  • Accepted : 2024.10.12
  • Published : 2024.10.31
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Abstract

In this study, a design method for a PWM control-based single input/single output buck DC-DC converter with multiple output voltages was studied which is recently required in industrial electronic devices. Based on the basic theory of the buck DC-DC converter, the design method of the buck converter was determined and a voltage control algorithm based on PWM control for a single-input, single-output buck converter that can selectively obtain multi-level output voltages was developed. To verify the effectiveness of the design methodology, a prototype was designed and made. Next, under a test environment based on the prototype DC-DC converter, the effectiveness of the PWM control-based voltage control method was verified by confirming that the multiple output voltages track within an error rate of 7% when the target voltages are selectively determined for the fixed and variable input voltages.

본 연구에서는 최근, 산업 전자 기기에서 요구되는 다중 출력 전압을 가지는 PWM 제어 기반 단일 입력/단일 출력 강압형 DC-DC 컨버터 설계 방법을 연구하였다. 강압형 DC-DC 컨버터의 기본 이론을 기반으로 강압형 컨버터의 설계 방법을 결정하였고 다중 레벨의 출력 전압을 선택적으로 얻을 수 있는 단일 입력, 단일 출력 강압형 컨버터에 대한 PWM 제어 기반의 전압 제어 알고리즘을 개발하였다. 설계 방법론의 유효성을 검증하기 위해 하나의 시작품을 설계, 시험 제작하였다. 다음, 시작품을 기반으로 하는 시험 환경 하에서, 고정 입력 전압과 가변 입력 전압에 대해 목표 전압들이 선택적으로 결정될 때 다중 출력 전압들이 목표 전압들을 오차율 7%이내에서 추종하는 것을 확인함으로써 PWM 제어 기반의 전압 제어 방법의 유효성을 검증할 수 있었다.

Keywords

References

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