基于FAIMS的高场非对称方波电源系统设计  

Design of High-Field Asysmmetric Pulse Power Supply for FAIMS

作　　者：郭江[1] 唐飞[2] 杨涛[1] 王晓浩[2] 林镇翔[2] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010 [2]清华大学,北京100084

出　　处：《西南科技大学学报》2010年第1期51-55,共5页Journal of Southwest University of Science and Technology

基　　金：国家自然科学基金(60706030);国家自然科学基金科学仪器专项(20827007);国家863计划基金(2007AA04Z337)

摘　　要：设计了一种用于FAIMS(高场非对称波形离子迁移谱)系统的高场高频非对称方波电源。电源由驱动电路、脉冲成型电路、高通滤波器和补偿电压电路四部分组成。选用半桥结构产生脉冲电压,利用高通滤波器滤除高频方波中的直流分量,把正脉冲变成正负面积相等的非对称脉冲。建立了电路模型,通过实验验证了高场非对称脉冲电源模型建立的正确性。该电路能够输出峰峰值电压为1000 V,方波频率为500 kHz。A high-field high-frequency asymmetric pulse power supply for FAIMS （ High-field Asymmetric Waveform Ion Mobility Spectrometry ） system was presented in this paper. The system consists of four parts ： a pulse generator, driver circuit, high-pass filter and DC compensate voltage circuit. The output of high-voltage square wave was achieved by the square wave generator which used half-bridge structure comprising two series-connected MOSFET. A high-pass filter was used to block the DC component of the highfrequency square wave, so that the unipolar square wave became a bipolar asymmetric waveform in which the positive and negative portions are qual. The analysis and comparison of results show that the pulse power system are valid. The maximum peak-to-peak voltage and frequency of the circuit is 1000 V and 500 KHz respectively.

关 键 词：FMMS 脉冲电源 非对称波 

分 类 号：TN402[电子电信—微电子学与固体电子学]