Design method of adjustable pulse width current generation and detection circuit

Abstract

The invention belongs to the technical field of pulse current detection, in particular relates to a design method of an adjustable pulse width current generation and detection circuit. The adjustable pulse width current generation and detection circuit comprises an adjustable pulse width pulse circuit, a load and an acquisition circuit, wherein the adjustable pulse width pulse circuit and the load are electrically connected for applying an adjustable pulse width pulse to the load. The design method is characterized in that the adjustable pulse width pulse circuit comprises an adjustable pulse width pulse generation circuit and a load drive circuit, the adjustable pulse width pulse generation circuit generates a pulse voltage, and outputs a 20V pulse width drive signal through a voltage comparison circuit, the 20V pulse width drive signal drives a drive field effect tube to control a load circuit of an external device to be switched on or off, when the load circuit is switched on, a signal acquisition circuit electrically connected with the load circuit extracts one part of signals in the load circuit, the signals are amplified through an amplification circuit, and the signals amplified by the amplification circuit are sent to a singlechip A / D input port with A / D conversion input. The design method is suitable for adjustable pulse width pulse current generation and detection circuits for aging detection of various apparatuses.

Description

technical field [0001] The invention belongs to the technical field of pulse current detection, in particular to a design method of an adjustable pulse width current generation and detection circuit. Background technique [0002] At present, with the rapid development of modern electronic technology. A large number of electronic equipment needs different pulse time and pulse current to test the performance of the equipment in the process of research and development and use. The general digital ammeter cannot achieve the sampling and holding of <100mS, which often requires the use of electronic load, but the price of electronic load equipment Expensive, generally small-scale tests cannot meet the procurement requirements due to funding constraints, so it is urgent to design pulse current generation and detection instruments connected in series with sliding wire rheostat loads to achieve similar functions to electronic loads. Contents of the invention [0003] The object...

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Problems solved by technology

A large number of electronic equipment needs different pulse time and pulse current to test the performance of the equipment in the process of research and development and use. The general digital ammeter cannot achieve the sampling and holding of <100mS, which often requires the use of electronic load, but the price of electronic load equipment Expensive, generally small-scale tests cannot meet the procurement requirements due to funding constraints, so it is urgent to design pulse current generation and detection instruments connected in series with sliding wire rheostat loads to achieve similar functions to electronic loads

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