恒温晶振低噪声供电电源设计  

A Constant Temperature Crystal Oscillator Low Noise Power Supply Design

作　　者：李朋 张旭达 LI Peng;ZHANG Xuda(Hebei Far East Communication System Engineering Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]河北远东通信系统工程有限公司,河北石家庄050000

出　　处：《通信电源技术》2022年第2期44-46,共3页Telecom Power Technology

摘　　要：为恒温晶振设计了一款供电用开关电源模块。针对输入电压范围比较宽的应用环境,使用了可升、降压的Buck-Boost变换器结构。为了避免开关电源的开关噪声对恒温晶振的相位噪声产生影响,设计了有效的滤波电路,且六面屏蔽的模块化设计避免了辐射噪声的影响。通过实验验证了供电电源模块的有效性。A switching power supply module was designed for constant temperature crystal oscillator.The Buck-Boost converter is used for wide input voltage range.In order to avoid the influence of the switching noise of the switching power supply on the phase noise of the thermostatic crystal,an effective filter circuit is designed,and the modular design of the six-side shielding can effectively avoid the influence of the radiation noise.The validity of the power supply module is verified by experiments.

关 键 词：恒温晶振 低噪声 供电模块 升降压变换器 

分 类 号：TM4[电气工程—电器]