低噪声混合全波电流传感器电路设计

Design of Low Noise Hybrid Full Wave Current Sensor Circuit

提出了一种结合了SenseFET和滤波器的低噪声混合全波电流传感器。它可以分别在降压、升降压和升压模式下工作,只需要一组控制逻辑来控制系统,可以处理更宽的输入电压范围。通过电流传感器和DC-DC变换器的仿真结果和分析,验证所提出的设计方案。

This paper presents a low noise hybrid full-wave current sensor which combines SenseFET and filter.It can work in step-down,step-up and step-up modes respectively.It only needs a set of control logic to control the system and can handle a wider range of input voltage.The proposed design scheme is verified by simulation results and analysis of current sensor and DC-DC converter.