Infineon XDPS2201 65W高功率密度快速充电器解决方案
Infineon公司的XDPS2201是基于非对称半桥控制的混合反激控制器.半桥驱动通常的和串联电容器连接的反激变压器.反激变压器的主电感和串联电容器组成谐振回路,以得到半桥功率开关的零电压开关(ZVS)行为.在正常工作时,充电周期和相关的功率由直接峰值电流控制,退磁相定时控制以保证适当负性预磁化,这对于半桥功率开关的ZVS条件是必要的.此外,连续谐振模式(CRM)操作,器件还提供先进的零电压谐振谷(ZV-RVS)和突发模式,一支持整个负载范围和宽输出电压范围的最高效率.600V高压起动单元,保证了快速充电和低待机功耗,支持无负载待机功耗小于75mW.器件可配置缓升和低落保护,可配置内置软起动,可配置突发模式进入和退出捎带小量延迟的电流阈值,可配置过流保护,可配置输出过压保护,可配置开关频率的抖动,可配置传输时延补偿以得到精确的峰值电流控制, RoHS兼容,符合IEC61249-2-21无卤素添加标准.本文介绍了XDPS2201产品亮点和主要特性,框图和应用电路图,混合反激功率级图,混合反激控制架构图,过流保护概述图以及采用XDPS2201和CCG3PA的65W大功率密度快速充电器演示板主要指标,电路图,变压器绕组和引脚图,材料清单和PCB设计图.
The XDPS2201 contains a Hybrid-flyback controller that is based on an asymmetrical half-bridge control. Thehalf-bridge is driving a conventional flyback transformer in conjunction with a serial capacitor. The maininductance of the flyback transformer and the serial capacitor are building a resonant tank, which is used forachieving zero voltage switching (ZVS) behavior of the half-bridge power switches and is providing in additiona resonant power transmission during the conventional demagnetization phase of the flyback transformer.
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