FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering and serves to convert analogue alternating-sign signals into rectangular pulses and can be used in designing digital devices for processing signals and measuring their parameters. Peculiar feature of the device is presence of a delayed feedback making it possible to block the appearance of short false pulses in the vicinity of the generated pulses fronts. Herewith formation of the lead front of the output pulse is performed strictly in the moment of the first crossing by the zero level signal when switching from negative to positive values, and of the rear one – when switching from positive to negative ones, provided that the input voltage has exceeded the threshold of possible interference. Device is based on two comparators, two triggers and a delay element, in a simplified version – one comparator, one trigger and a delay element.
EFFECT: technical result achieved when using the present invention is mainly the possibility of obtaining pulses of an undistorted duration in absence of interference and reducing distortions of pulses in presence of interference.
8 cl, 3 dwg
