STEVAL-ISA143V1 系统评估板由两级组成:使用 L6563H 的前端 PFC、基于 L6699 和 SRK2000 的 LLC 谐振转换器,控制次级侧的 SR MOSFET。 SR 驱动器和
整流器 MOSFET 安装在子板上。 L6563H 是一款在过渡模式下运行的电流模式 PFC
控制器,并实现高压启动源来为转换器供电。 L6699 集成了正确控制具有 50% 固定占空比并以可变频率工作的谐振转换器所需的所有功能。输出整流由 SRK2000 管理,SRK2000 是一款专用于 LLC 谐振拓扑的 SR 驱动器
说明
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STEVAL-ISA143V1, System Evaluation Board is made up of two stages: a front-end PFC using the L6563H, an LLC resonant converter based on the L6699 and the SRK2000, controlling the SR MOSFETs on the secondary side. The SR driver and the rectifier MOSFETs are mounted on a daughter board. The L6563H is a current mode PFC controller operating in transition mode and implements a high voltage startup source to power on the converter. The L6699 integrates all the functions necessary to properly control the resonant converter with a 50% fixed duty cycle and work with variable frequency. The output rectification is managed by the SRK2000, an SR driver dedicated to LLC resonant topology
主要特色
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Conversion Type
AC to DC
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Input Voltage
90 to 264 (AC) V
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Output Voltage
12 V
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Output Current
12.5 A
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Output Power
150 W
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Efficiency
91 %
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Topology
LLC Resonant