负输出罗氏变换器──先进的电压举升技术

Negative Output Luo-converters, the Advanced Voltage Lift Technique

电压举升是一项广泛用于电子电路设计的技术。受寄生元件的影响，ＤＣ－ＤＣ升压变换器的输出电压和功率传递效率受到限制，电压举升技术为改善电路特性提供了好方法。负输出罗氏变换器是和正输出罗氏变换器相对应的另一类ＤＣ－ＤＣ升压变换器系列。它正输入负输出，具有高功率密度和效率，简单廉价的拓扑结构，不同于任何已有的ＤＣ－ＤＣ升压变换器，拥有输出电压高．纹波小的优点。

Voltage lift technique is a popular method widely applied in electronic circuit design. Since the effect of parasitic elements limits the output voltage and power transfer efficiency of DC-DC converters,voltage lift technique opens a good way to improve circuit characteristics. After long term research,this technique has been successfully applied for DC-DC converters. As the positive output Luo-converters, Negative Output Luoconverters are another series of new DC-DC step-up (boost) converters,which were developed from prototypes using the advanced voltage lift technique. These converters perform positive to negative DC-DC voltage increasing conversion with high power density,high efficiency and cheap topology in simple structure. They are different from any other existing DC-DC step-up converters and possess many advantages including the high outputvol age with small ripples. Therefore,these converters will be widely used in computer peripheral equipment and industrial applications,especially for high output voltage projects.