控制理论(社会学)
反激变换器
相位裕度
小信号模型
超调(微波通信)
反激变压器
信号(编程语言)
电容器
降压升压变换器
电感器
振荡(细胞信号)
脉冲宽度调制
循环(图论)
电压
计算机科学
工程类
升压变换器
电子工程
控制(管理)
数学
电气工程
运算放大器
人工智能
组合数学
生物
放大器
程序设计语言
变压器
遗传学
CMOS芯片
作者
Shengyou Xu,Qinsong Qian,Bowen Ren,Qi Liu
标识
DOI:10.23919/icpe2019-ecceasia42246.2019.8797022
摘要
An accurate small signal model of active clamp flyback (ACF) converter is proposed in this paper. To obtain a precise model, the ESR of output capacitor was considered. Different to traditional flyback converter, because of the resonant effect, at the three to five times of switching frequency, ACF converter was added two poles which result in high oscillation in frequency responses curve. To get sufficient phase margin and avoid resonant inductor oscillation affect, a fundamental error compensator was given to keep control loop stabled. Then a 65W prototype was implemented to verify the performance of the designed control loop, the simulation and experimental results showed that the adjusted process between different load status haven't result in much voltage overshoot or undershoot and need a long regulate time.
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