NOISE SIGNAL REMOVING CIRCUIT

摘要: PURPOSE:To remove even low-frequency noises completely as well high-frequency by using two monostable multivibrators which differ in time constant. CONSTITUTION:A normal input signal, noise and signal are converted the 1st multivibrator circuit 2 into a positive processed having width tS, tV less than same constant T1 of 2, they inputted to 2nd 3. The 3 outputs negative comparison with t2, so an AND 4 ANDs this signals from output only without outputting high- frequency signal. This is 3rd 5, then OR 6 rounding-free sharp delay t2.