Electromagnetic valve driving circuit capable of preventing misoperation

Abstract

The invention discloses an electromagnetic valve driving circuit capable of preventing misoperation. Two groups of diodes capable of receiving an extension instruction and a retraction instruction are adopted in the electromagnetic valve driving circuit capable of preventing misoperation to form a double-margin design circuit with an electromagnetic valve and a single-pole double-throw switch, and it is guaranteed that when a landing gear retraction and extension task is executed, the reliability of the electromagnetic valve in the opening or closing process is high. Meanwhile, the negative end of the electromagnetic valve driving circuit is controlled through the single-pole double-throw switch, it is guaranteed that after a retraction or extension instruction is sent out mistakenly, if the single-pole double-throw switch is not connected with the negative end, a landing gear cannot be retracted or extended mistakenly, and the safety of an airplane cannot be affected.

Description

technical field [0001] The invention relates to the field of electric control, in particular to a solenoid valve driving circuit for preventing malfunction, which can be used in the design of the solenoid valve driving circuit for retracting and retracting the landing gear of an aircraft. Background technique [0002] Solenoid valves are widely used in the retraction and retraction control of aircraft landing gear and hatches, and the wrong retraction of ground landing gear may have a significant impact on the structure of the aircraft; the traditional drive circuit is controlled by software, which may cause the problem of false signal generation and potential safety hazards . Contents of the invention [0003] The object of the present invention is to provide a solenoid valve drive circuit that prevents malfunctions, so as to overcome the problem that traditional drive circuits are prone to generate false signals. [0004] In order to achieve the above tasks, the present...

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Problems solved by technology

[0003]The object of the present invention is to provide a solenoid valve drive circuit that prevents misoperation, so as to overcome the problem that traditional drive circuits are prone to false signal generation

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