文献类型：专利

英文题名：High-low voltage pulse power supply for gas neutron detector, has 5V power supply connected with control chip, and low power direct current power supply connected with gas detector of working electrode

作者：WANG H;TANG B;WANG R;ZHOU S;LIU Z;CHEN R;ZHANG X;JU J

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN207530723-U

申请日：2017-10-24

公开日：2018-06-22

语种：英文

收录：DERWENT

摘要：NOVELTY - The utility model claims a gas neutron detectors for high-low voltage pulse power supply, synchronizing pulse signal controlling high-low voltage pulse frequency and duty ratio from outside, between the DC high-voltage power supply and the direct current low voltage power supply connected to a half-bridge control circuit, the upper bridge arm of the half-bridge high-voltage MOS transistor and the lower bridge arm alternately conducted to realize low pulse high voltage output. When the synchronization pulse is high level, the direct current high voltage power supply supplying power to gas neutron detector; when the synchronous pulse is low level, direct current low voltage power supply supplying power to gas neutron detector, and then it can prevent the neutron flux caused by overlarge gas detector saturation. high voltage output pulse duty ratio is continuously adjustable between 90% and 0%, the output high voltage pulse frequency can be continuously adjusted in 1 Hz to 2KHz, output high voltage pulse rise/fall width less than 1 --mu-- s, it is very suitable for using gas neutron detector for neutron detection of pulsed neutron well logging field.