一种星载氢钟恒流电源的设计

Design of an On-satellite Hydrogen Maser Constant Current Source

基于BUCK式开关电源拓扑结构设计了一种星载氢钟恒流电源,对该电源的关键电路的工作原理进行了阐述,给出了相应的设计方法,并对该恒流源的稳定度进行分析。最后制作了原理样机,通过实验验证了该电源高精度、高稳定性、低纹波的特点,能够满足星载氢钟的要求。

A hydrogen maser constant current source is designed in this paper,based on BUCK power topologies.The principle and the designation of the major circuits is expatiated,and the stability of the source is analyzed.At last,a sample of constant current source is designed,and some experiments are taken to validate the feature of high accuracy,high stability,and low ripple of the constant current source,which can satisfy the need of On-satellite hydrogen maser.