一种高性能电压前馈Buck变换器  

A High Performance Voltage Feedfoward Buck Converter

作　　者：宋志军[1] 周泽坤[1] 张波[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054

出　　处：《微电子学》2008年第6期855-858,共4页Microelectronics

摘　　要：设计了一种前馈电路,电路产生的前馈信号受温度的影响很小,与电源成比例关系。结合前馈控制和反馈控制各自的特点,实现了一种性能优异的Buck变换器。采用0.6μm 30 V BCD工艺模型进行仿真验证。结果表明,基于此前馈电路的Buck变换器,其线性调整率可达到0.375%/V。A feed-forward circuit was designed, which generated feed-forward signals proportional to supply voltage and was hardly affected by temperature. By taking advantages of both feed-forward and feed-back control, a buck converter with outstanding performance was realized. The circuit was simulated and validated by using 0. 6μm 30 V BCD technology. Simulation results showed that the proposed feed-forward buck converter had a line regula- tion of 0. 375%/V.

关 键 词：电压前馈电路 BUCK变换器 动态响应 线性调整率 

分 类 号：TN433[电子电信—微电子学与固体电子学]