조명 제어용 LLC 공진형 하프브리지 컨버터 변압기 설계 특성

The Transformer Characteristics of LLC Resonant Half-Bridge Converter for Universal Lighting control system

In case of the power conversion converter for driving the Lighting control system, the input voltage widens from $90V_{rms}$ to $264V_{rms}$. Among various methods, LLC half-bridge converter has wide input regulation range and limited switching frequency control range and ZVS is possible for even non-loaded case. Also, the converter can be applied for Universal Lighting control system. In this paper, the transformer design is studied. The efficiency measured is up to 90%.