Current pulse falling edge linear adjustable control method and device having rising edge lifting capacity

A current pulse and linear technology, which is applied in the field of control and device with linearly adjustable falling edge of current pulse with rising edge lifting capability, can solve the problem of affecting the frequency of current pulse, affecting the shape of current pulse, and increasing the time for the current to reach a steady state. And other issues
CN100337399CActive Publication Date: 2007-09-12CHONGQING CUILU DETECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING CUILU DETECTION TECH CO LTD
Publication Date
2007-09-12

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Abstract

The present invention is current pulse controlling method and device with rise edge raising capacity and fall edge linearity regulating capacity and current pulse generating method and device, and is especially suitable for the condition with great inductance load in geophysical exploration, engineering geological exploration and other fields. The method of the present invention includes: regulating frequency, regulating the voltage of DC power supply and clamping voltage source to generate voltage waveform with the same shape and amplitude, calculating the fall slope of the positive and negative current pulses and the fall delay time of the output current pulse. The device of the present invention includes DC power source, power switch, bipolar current pulse generator and its control circuit, inductive load, rise edge raising circuit, clamping circuit and clamping voltage source.
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Description

Technical field:

[0001] The invention relates to a method and a device for generating a current pulse, and is particularly suitable for the method and device for generating a current pulse when a load has a large inductance, and is suitable for the fields of geophysical exploration, engineering geological exploration and the like. Background technique:

[0002] In some research and industrial applications, it is necessary to use positive-going current pulses, negative-going current pulses, or bipolar current pulses. The standard waveform of a bipolar current pulse is characterized by a constant amplitude during the output current period, zero current during the no output period, and periodic changes in the current waveform.

[0003] The device for generating current pulses can generate positive, negative or bipolar current pulses with adjustable pulse period and amplitude. The circuit for generating bipolar current pulses is realized by a full-bridge circuit, and the switch...

Claims

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