Oscilloscope Vertical input path protector based-on integrated operational amplifier

摘要：

The vertical input path of an oscilloscope setting at high sensitivity is often damaged while the rising stage of a big pulse signal is measured. From the switch diode type protector, a novel oscilloscope vertical input path protector based-on integrated operational amplifier is developed. The defects such as positive reflection and impedance dis-matching existing in the switch diode type protector are effectively resolved. The amplitude and rising edge of the measured signal are not influenced by the protector. The novel protector can protect effectively the vertical input path of the oscilloscope used for measuring and recording signals of high voltage or of big current, and can work reliably in bandwidth from DC to 200MHz. A relative schematic electrocircuit, some waveforms and conclusions are provided.

关键词： oscilloscope vertical input path integrated operational amplifier.

作者: Li Xianbao Ruan Linbo Qu Hongguang

作者单位: Northwest Institute of Nuclear Technology,Xian 710024,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 987-991

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）