High-Step-Down Synchronous Rectified DC-DC Converter with High Accurate Output Regulation In Wide Operation Range
ID：137
Submission ID：335 View Protection：ATTENDEE
Updated Time：2021-12-09 17:34:08
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Poster Presentation
Start Time：2021-12-17 16:10 （Asia/Shanghai）
Duration：5min
Session：[Z] Poster Session » [Z8] Poster Session 8: Power electronic technology and application
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Abstract
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 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 the 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.
Keywords
High-step-down,wide operation range,synchronous rectification,isolated DC-DC converter
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