针对新型的移相PWM控制器UCC3895,介绍了其基本的功能及与UC3875(79)系列的控制器相比所具有的特点。并将该控制器应用于20kHz/500W移相全桥电源,进行了开环和闭环的系统实验,实验结果表明所进行的设计是合理的,UCC3895有较强的实用价值。
The UCC3895 is a phase shift PWM controller that implements control of a full-bridge power stage. It improves on UC3875/6/7/8 family and UC3879 controller family with additional features. A 20 kHz/500 W ZVS-FB-PWM Converter based on UCC3895 is designed. The experimental results show that the design proposal is feasible.