Analog signal control circuit

Abstract

The invention discloses an analog signal control circuit comprising a filter circuit and a rectifier circuit, wherein the filter circuit is connected with an RC circuit in series to filter high frequency clutter and input the high frequency clutter to the rectifier circuit after voltage stabilization and scaling up of an operational amplifier, and the rectifier circuit outputs a stable analog signal by using a thyristor and a triode-thyristor rectifier; the cathodes of thyristors D2 and D5 receive the analog signal of the filter circuit in two paths, one path is connected with a capacitor C2 in series for filtering a DC analog signal in the AC analog signal by using the character of AC passing and DC isolating of the capacitor C2, wherein the thyristor D3 protects the circuit, the level of the control electrode of the triode-thyristor Q1 is too high to be reversely conducted and grounded, and if the level of the control electrode of the triode-thyristor Q1 is too low, the triode-thyristor Q1 is triggered and conducted, similarly, the same circuit connected in parallel achieves the rectifying effect through thyristors D5 and D6, a capacitor C3 and a triode-thyristor Q2, therefore the stabilization and filtering of the output analog signal of the high-voltage integrated circuit are effectively solved, and the abnormal analog signal can be effectively regulated and controlled.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to an analog signal control circuit. Background technique [0002] At present, the transmission of analog signals 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 object of the present invention is to provide an analog signal control circuit, which has the characteristics of ingenious conception and hu...

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 object of the present invention is to provide an analog signal control circuit, which has the characteristics of ingenious conception and humanized design, and effectively solves the problem that the transmission of analog signal signals is prone to clutter and signal Frequency instability problem

Images