Comparator continuously and automatically adjusts noise immunity period. High-gain amplifier used in conjunction with multivibrator 4 to provide clear pulse to multivibrator 1 at first negative-going zero crossing of input signal. Once multivibrator 1 cleared, output goes to zero volts and not retriggered until next time positive input exceeds reference level. Since input signal noise at zero crossing does not exceed reference level, no effect on multivibrator 1 operation. Circuit fabricated using standard solid-state operational amplifiers, multivibrators, OR gates, and passive elements.
Comparator With Noise Suppression
NASA Tech Briefs ; 9 , 2
1985-08-01
Miscellaneous
No indication
English
Tema Archive | 1985
|NTRS | 1983
|NTRS | 1986
|NTRS | 1982
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