LLC应用笔记和疑问

LLC Converter Small Signal Modeling，2014 Texas Instruments Power Supply Design Seminar SEM2100, Topic 7，https://www.ti.com/seclit/wp/slup329/slup329.pdf

Design and Optimization of a High-Performance LLC Converter，2012 Texas Instruments Power Supply Design Seminar SEM2000, Topic 5，https://www.ti.com/seclit/ml/slup306/slup306.pdf

 

疑问：

为什么工作区的右侧是ZVS，左侧是ZCS? 

Q值如何计算？为什么Q=Zo/R1?

为什么开关频率越低，导通损耗越大？