High-speed multi-channel signal acquisition circuit

Abstract

The invention discloses a high-speed multi-channel signal acquisition circuit which comprises a filter circuit and a rectification circuit. The filter circuit is connected in series with an RC circuit to filter out medium-high-frequency clutters. Further, a signal is subjected to voltage stabilization and scale amplification and then is input into the rectification circuit. The rectification circuit uses thyristors and a three-terminal thyristor to perform rectification to output a stable signal. The negative electrode of a thyristor D4 receives the signal of the filter circuit and is connected with a capacitor C4 in series. A DC signal in an AC signal is filtered out by using the AC-passing DC-isolating characteristic of the capacitor C4. The other end of the capacitor C4 is connected to the negative electrode of a thyristor D5 and the control grid of a three-terminal thyristor Q1. A Thyristor D5 functions as a protection circuit. Over-high potential of the control grid of three-terminal thyristor Q1 may cause reverse on-state and grounding and over-low potential of the control grid of three-terminal thyristor Q1 cannot switch on the three-terminal thyristor Q1 so as to achieve a rectification effect and to solve the output signal stability and filtering of a high-voltage integrated circuit and control abnormal signals.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to a high-speed multi-channel signal acquisition circuit. Background technique [0002] At present, high-speed multi-channel signal acquisition is prone to clutter, and the signal frequency is unstable. Now to solve this problem, a controller with a chip as the core is used for processing, and the control is stable, but the structure is complicated. Because the chip is used as the core processor , maintenance is difficult, the equipment is easily damaged, and its functional effect depends on the quality of the chip, resulting in high cost and serious waste of resources. [0003] So the present invention provides a new solution to solve this problem. Contents of the invention [0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a high-speed multi-channel signal acquisition circuit, which has...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a high-speed multi-channel signal acquisition circuit, which has the characteristics of ingenious design and humanized design, and effectively solves the problem of clutter easily generated by high-speed multi-channel signal acquisition. , and the problem of unstable signal frequency

Images