Improved electronic circuit design of voter logic to generate median output for controlling actuators of a combat helicopter

摘要

This invention relates to the generation of median output of the three inputs using improved voter logic circuit as the final command signal to drive actuators of combat helicopter. As compared to earlier inventions where input comes from different processing channels and the voter does some signal conditioning like amplification, addition, subtraction which adds delay to the final output, this voter logic gives the final median output without mathematical computation (addition, subtraction etc). This increases the speed and performance of the overall system. Also as no mathematical computation are involved but comparison so the circuit realization is also very simple. This voter logic is implemented independently for the entire axis (Pitch, Roll, Collective, Yaw) of helicopter. Due to this single point failure has been further reduced as compared to conventional systems.