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The resonant LLC topology, member of the Series Resonant Converters (SRC), begins to be widely used

Voltage fed series resonant half bridge inverters are currently used for fluorescent lamps (fig.1

Analysis of LLC Resonant Converter Considering，介绍了国外的LLC谐振变换电路设计。

TI德州仪器官方英文文档。Half-Bridge Power Converter Designing an LLC Resonant While converters with high-voltage inputs are often designed with resonant switching to achieve higher efficiency, half-bridge power stages have commonly been used for isolated, medium-power applications, an benefits. ...

• LLC series-resonant Half-bridge: operationand significant waveforms• Simplified model (FHA approach)• 300W design example

Simplified Analysis and Design of Seriesresonant LLC Half-bridge Converters MLD GROUP INDUSTRIAL & POWER CONVERSION DIVISIONLLC series-resonant Half-bridge: operation and significant waveforms• Simplified model (FHA approach)• 300W design example

General Design Specification:1. AC Input Range 180-264Vac, Isolated ac-dc offline, 12LEDS,Output 700mA2. Intelligent wall dimmer detections(Leading-edge dimmer , Trailing-edgedimmer , No-dimmer)3. Multiple dimming control scheme4. Wide dimming range from 1% up to 100%5. No visible flicker6. Resonant ...

低成本和高可靠性是离线电源设计中两个最重要的目标。准谐振(Quasi resonant) 设计为设计人员提供了可行的方法，以实现这两个目标。准谐振技术降低了MOSFET 的开关损耗，从而提高可靠性。此外，更软的开关改善了电源的EMI 特性，允许设计人员减少使用滤波器的数目，因而降低成本。本文将描述准谐振架构背后的理论及其实施， ...

通过采用无桥PFC和半桥LLC谐振变换器作为数字开关电源的主变换拓扑,基于STM32系列微控制器的全数字控制PFC和DC-DC变换器,首先对数字化开关电源方案进行对比,然后阐述了200W数字开关电源整体方案,并对数字开关电源的无桥PFC和半桥LLC变换器进行系统研究。By using a bridgeless PFC and a half-bridge LLC resonant converte ...

Abstract—A higher order passive power filter (LLCL-filter) for the grid-tied inverter is becoming attractive for industrial applications due to the possibility to reduce the cost of the copper and the magnetic material. However, similar to the conventional LCL-filter, the grid-tied inverter is faci ...