Bidirectional silicon controlled rectifier triggering control system

A technology of triggering control and triggering pulse, applied in electrical program control, program control in sequence/logic controllers, etc., can solve the problem of rare systems with multiple function combinations, and achieve overload protection and no-load alarm. Effect

Inactive Publication Date: 2019-05-21
深圳市火音智控科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of thyristor trigger technology solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0004] When the thyristor has no triggering task, the system collects the AC voltage at both ends of the thyristor and identifies the phase of the AC voltage. When the thyristor has a trigger task, the control system first sends a trigger pulse at the end of a half-wave to trigger the last 10% phase of the half-wave, and at the same time detect the loop AC current of the system. When the current does not exceed the internal preset value of the system, in the next AC half-wave, increase the trigger conduction angle phase, and continue to detect the AC current, and cycle in turn. When the trigger phase shifts to 5% of the beginning of the half-wave phase, it is considered fully open The triggering angle of the SCR.

[0005] In each half-wave at the beginning of the trigger, after the trigger pulse is sent out, the AC current of the loop cannot be detected. If the AC current is still not detected after increasing the trigger pulse width and trigger pulse current, the system will ...

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PUM

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Abstract

The invention provides a bidirectional silicon controlled rectifier triggering control system. Through the system, not only can silicon controlled rectifier triggering be realized, but also dynamic adjustment of a triggering parameter can be realized, such as triggering current magnitude adjustment, wherein a triggering waveform realizes high-and-low-matched stepped triggering of current. The bidirectional silicon controlled rectifier realizes parameter adjustment such as triggering pulse width and triggering pulse number in a single half-wave. The system is invented in a process of settling an actual problem and has a profound effect in direct coupling sampling and measurement of AC current in a circuit and application of an electric energy acquisition circuit of a power loop.

Description

technical field [0001] The invention is a two-way thyristor pulse trigger control system, through which not only the thyristor trigger can be realized, but also the dynamic adjustment of trigger parameters can be realized. For example, the size of the trigger current is adjusted, and the trigger waveform realizes the ladder trigger with the matching of high and low current. Parameter adjustment such as trigger pulse width and number of trigger pulses within a single half-wave. This system was invented in the process of solving practical problems, and it has a profound impact on the direct coupling sampling and measurement of AC current in the circuit, and the application of the power supply circuit of the power supply circuit. . Background technique [0002] At present, there are many kinds of thyristor trigger technology solutions, but the system that can realize the combination of multiple functions is rare. Thyristor is a non-contact electronic switch. As long as it do...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 黄善兵
Owner 深圳市火音智控科技有限公司
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