A firing signal circuit associated with a safety lock and a button

Abstract

The invention discloses a triggering signal circuit associated with a safety lock and a button, which includes two parts: a triggering signal main circuit and a button control circuit, wherein the triggering signal main circuit includes a first resistor, a second resistor, a third resistor, a first capacitor, The first diode, the safety lock, the first contact and the second contact of the relay, and the indicator light inside the button. The triggering signal circuit of the present invention is composed of simple components, does not need complex circuits including single-chip microcomputers, etc., and has the advantages of small size, low cost and high reliability.

Description

Technical field [0001] The present invention relates to an analog control circuit, particularly relates to a firing circuit for a signal associated with the safety lock and key. Background technique [0002] Early firing signal circuit control module in series with the safety lock and self-locking button is made, no other control circuit, when the key is pressed by mistake, will cause the safety lock is closed, the firing command sent immediately to be missing firing state. Reliability will be replaced with self-locking button is not self-locking button, although solves the problem, but the actual sending a single firing signal mistakenly sent repeatedly firing signal, achieving the desired effect of the process used, equipment low. Embedded microcontroller and a level converting circuit chips auxiliary firing signal circuit, and to solve the self-locking key debouncing timer delay and by counting function, ensures a single firing signal is sent, but increases the complexity and ...

AI Technical Summary

Problems solved by technology

[0002] The firing signal circuit in the early control module is composed of a safety lock and a button with self-locking in series. There is no other control circuit. When the button is pressed by mistake, the safety lock will be closed and the firing command will be sent immediately. firing state

Replacing the self-locking button with a non-self-locking button solves the above problems, but in the actual use process, multiple firing signals will be sent by mistake, which cannot achieve the expected effect of sending a single firing signal. The reliability of the device lower

Auxiliary circuits such as microcontrollers and level conversion chips are embedded in the firing signal circuit, and the key self-locking and debounce functions are solved by counting and timer delay, which can ensure a single firing signal, but increases the complexity and cost of the circuit. , and not suitable for wide voltage input, complex electromagnetic environment and other occasions

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