Multifunctional controllable silicon trigger for singlechip

Abstract

The invention discloses a multifunctional controllable silicon trigger for a singlechip, which relates to the technical field of controllable silicon triggers. The trigger comprises a zero cross signal synchronous detecting circuit (1), a singlechip (2), a reset circuit (3), a trigger pulse output circuit (4), an isolating driving circuit (5) and a corresponding thyristor (6), wherein the zero cross signal synchronous detecting circuit (1) and the reset circuit (3) are connected with the singlechip (2); the singlechip (2) is connected with the trigger pulse output circuit (4); the trigger pulse output circuit (4) is connected with the isolating driving circuit (5); and the isolating driving circuit (5) is connected with the corresponding thyristor (6). The multifunctional controllable silicon trigger has a simple and compact structure and high generality; and a singlechip technology is adopted, so that high anti-interference performance and high price performance of the trigger are ensured on the aspect of software and hardware designs, and the trigger can widely meet the requirements of various controllable application devices on the trigger.

Description

Technical field: [0001] The invention relates to the technical field of thyristor triggers, in particular to a single-chip multifunctional thyristor trigger. Background technique: [0002] Thyristor trigger is a phase-shifting power controller that adjusts the voltage, current and power of electrical equipment by adjusting the conduction angle of the thyristor. Its core components are high-performance, high-reliability military products produced abroad. It is the most widely used high-power conversion device in industrial applications at present. The output trigger pulse has extremely high symmetry and stability, and does not change with the ambient temperature. There is no need to adjust the pulse symmetry and limit during use. On-site debugging can generally be completed without an oscilloscope. A full range of general-purpose thyristor trigger boards can be widely used in voltage and current regulation in various fields of industry, and are suitable for resistive loads,...

AI Technical Summary

Problems solved by technology

The traditional thyristor flip-flop uses an analog control circuit, which cannot overcome its inherent shortcomings

Compared with the analog type, the main advantage of the digital control circuit is that the output waveform is stable and the reliability is high, but its disadvantage is that the circuit is more complicated, and the control accuracy is not high when the phase-shift trigger angle is large.

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