Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
권호 표지

Full-Digital Controlled High Power Soft Switching DC/DC Converter for Resistance Welding

저항용접용 풀-디지털제어 대용량 소프트 스위칭 DC/DC 켄버터

  • 김은수 (한국전기연구소 전력전자연구그룹) ;
  • 김태진 (한국전기연구소 전력전자연구그룹) ;
  • 변영복 (한국전기연구소 전력전자연구그룹) ;
  • 조기연 (한국전기연구소 전력전자연구그룹) ;
  • 조상명 (부경대 생산가공공학과)
  • Published : 2000.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

Conventionally, ZVS FB DC/DC converter was controlled by monolithic IC UC3879, which includes the functions of oscillator, error amplifier and phase-shift circuit. Also, microprocessor and DSP have been widely used for the remote control and for the immediate waveform control in ZVS FB DC/DC converter. However the conventional microprocessor controller is complex and difficult to control because the controller consists of analog and digital parts. In the case of the control of FB DC/DC converter, the output is required of driving a direct signal to the switch drive circuits by the digital controller. So, this paper presents the method and realization of designing the digital-to-phase shift PWM circuit controlled by DSP (TMX320C32) in a 2,500A, 40㎾ WS FB DC/DC converter.

Keywords