Solid ignition module with input control anti-interference design and operation method

Abstract

The invention discloses a solid ignition module with an input control anti-interference design and an operation method. Input ends of four paths of solid ignition circuits adopt positive end or negative end control; the output ends adopt independent output for realizing independent control ignition, normal serial-parallel output for realizing redundancy control ignition, or reverse serial-parallel output for realizing two-way output ignition; when the control input end of an input threshold control circuit does not output control signals or the inputted control signals are lower than signals of pulse width of the anti-interference control circuit design, the output end of the solid ignition module is disconnected; and when the control signals inputted by the control input end of the input threshold control circuit exceeds the signals of pulse width of the anti-interference control circuit design, the output end of the solid ignition module is connected. The solid ignition module with input control anti-interference design and the operation method have good millisecond pulse interference inhibition and redundancy control functions.

Description

technical field [0001] The invention relates to the technical field of solid relays, in particular to a solid ignition module with an input control anti-interference design and an operating method. Background technique [0002] The ignition control method adopted by the current system is mechanical contact output, and electromagnetic relays are used for combined redundant design to form a mechanical contact output ignition module. The ignition current is generally the overload current of the relay contacts. Adopting this ignition control mode has the following disadvantages: [0003] ① There is contact ablation when the electromagnetic relay contacts switch loads. The overload assessment index is generally 100 times, and the life times are relatively small. Although the use of 4 sets of series-parallel redundancy can increase the life times, it is reliable in terms of reliability prediction. Sex indicators are relatively low; [0004] ② Mechanical relays have higher requi...

AI Technical Summary

Problems solved by technology

[0003] ① There is contact ablation when the electromagnetic relay contacts switch loads. The overload assessment index is generally 100 times, and the life times are relatively small. Although the use of 4 sets of series-parallel redundancy can increase the life times, it is reliable in terms of reliability prediction. Sex indicators are relatively low;

[0004] ② Mechanical relays have higher requirements for internal excess control;

[0005] ③ It is difficult to improve the mechanical environment tolerance;

[0006] ④The power consumption of the control is relatively large, and the drive of the signal control circuit needs to be driven by an additional amplifier circuit

However, the turn-on time of the current solid-state relay is microseconds, and when it is applied to ignition control, a microsecond-level interference pulse at the control end will cause misfire

Images