High-Step-Down ZVS Synchronous Rectified DC-DC Converter With High Accurate Output Regulation In Wide Operation Range
- Resource Type
- Conference
- Authors
- Chen, Zhengge; Liu, Cheng; Xu, Jianping; Zhou, Guohua; Shen, Zhan
- Source
- 2021 IEEE 2nd China International Youth Conference on Electrical Engineering (CIYCEE) Electrical Engineering (CIYCEE), 2021 IEEE 2nd China International Youth Conference on. :1-7 Dec, 2021
- Subject
- Power, Energy and Industry Applications
Robotics and Control Systems
Transportation
Voltage measurement
Magnetic resonance
DC-DC power converters
Zero voltage switching
Regulation
Clamps
Voltage control
High-step-down
wide operation range
accurate output regulation
synchronous rectification
planar magnetic
- Language
A high-step-down digital controlled isolated DC-DC converter with a wide input/output operation range is popular in industrial applications. This paper presents a high-step-down isolated DC-DC converter with accurate output regulation ability (≤0.5%) in a wide operation range. The active clamp circuit and full-bridge ZVS synchronous rectification are implemented for efficiency concerns. The planar magnetic technique is employed to reduce volume and maintain parameter consistency. Meanwhile, combining the high resolutions of DSP I/O configurations, a simple effective control approach for the accurate output voltage regulation is found. A 180-420V wide input voltage range and 28V/10A output isolated DC-DC converter prototype is built and tested to verify the effectiveness of the converter.