一种低噪高输出电压DC-DC变换器设计  

Design of DC-DC Converter with Low Noise and High Output Voltage

作　　者：刘克承[1] 王卫国[1] 黄欹昌[1] 李斌[1] 

机构地区：[1]兰州空间技术物理研究所,甘肃兰州730000

出　　处：《现代电子技术》2011年第6期188-190,195,共4页Modern Electronics Technique

摘　　要：针对某航天器设备用的130 V高压DC-DC变换器的低噪声要求,采用初级侧隔离的负载端直接反馈控制方式,次级侧采用结合LC低通无源滤波电路和有源滤波电路的两级输出滤波电路设计方法。通过实验,不仅实现了高压DC-DC变换器的低噪声输出,而且通过优化设计,使得两级滤波器的体积较小,可靠性较高,实现了星载应用。According to the low noise requirement on the high output voltage （130V） DC-DC converter of a spacecraft device, the isolation feedback control in primary side is used, and the two stage filters design including LC low-pass filter and active filter in secondary side is presented. The low noise output of the high voltage DC-DC converter is achieved by circuit experiments. By optimizing the design, the two stage filters become smaller and reliable, so the high output voltage DC-DC converter can be used in spacecraft device.

关 键 词：低噪声 有源滤波 高输出电压 DC—DC变换器 

分 类 号：TN710-34[电子电信—电路与系统]