SU813755A1 - Selector of pulse traing by duration - Google Patents

Description

(54) SELECTOR OF SERIES OF PULSES BY DL-TEL :: i.OSTI

The invention relates to a pulse technique and can be used with devices of automatics and telemechanics.

A selector of a series of pulses is known in duration in which the selector input is fed to the S input of the RS flip-flop and to the summing input of the pulse counter, a single output of the RS flip-flop is connected to the input of the delay element, the output of which is connected to the first input of the first coincidence element of the ZI-OR element , a single output of the K-th trigger trigger of the pulse counter directly and through the second delay element is fed to the inputs of the second coincidence element of the ZI-OR element, the zero output of the K-th trigger trigger of the counter is connected to the second input of the first match element to the first input of the third match element of the ZI-OR segment and to the input of the third delay element, the output of which is connected to the second input of the third match element of the ZI-OR element, the output of which is connected to one of the inputs of the AND element and fed to the input of the fourth delay element, the output of which is connected to the pulse counter reset inputs and RS-flip-flop2, HeiJbi ozgl-e from zyhol: 5 ::

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The closest are: ,, .....;; ness, to the proposed%, at mz .: pulses, containing the account the first inputs of which, through the swarm, the elements of And are connected by pulses, the third input, from the th element And, and the outputs .-. the inputs of the fourth and Ptogs additional input perzs through the driver /.:,5:iy.:;i to the input bus and the second at the element I, and through the element

This is connected to the first input, the third input, which is connected to the trigger output, 3, is directly connected to the second input.

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Claims (2)

element I, and k-input element I 21. However, this device does not provide for the selection of a series of pulses of duration 2. The purpose of the invention is to expand the functionality. The goal is achieved by the fact that the selector of the series is ip in duration, containing a pulse counter, the summing input of which is connected to the output of the first element I, the first input of which is connected to the output of the pulse generator, and the second input to the input bus and the inputs of the second element AND, the pulse shaper, the output of which is connected to the input of the delay element, the third element AND, are entered two elements OR and an additional pulse counter, the summing input of which is connected to the input input and the first input OR, the reset input — with the second input of the first OR element, whose output is connected to the reset input of the first pulse counter, and with the output of the delay element, the first outputs — with the inputs of the third AND member, whose other input is connected to the input the delay element, and the second outputs through the second OR element with the third input of the first element AND, and the output of the second element AND is connected to the input of the pulse former. The drawing shows a structural electrical circuit of the device. The pulse train selector has a pulse counter 1, an AND 2 element, whose inputs are connected to the trigger outputs of the first pulse counter 1, an OR 3 element, to the inputs of which are single outputs of the trigger of the pulse 1 counter, a pulse generator 4, an And 5 element, one of the KOTOpoio inputs are connected to the generator 4 pulse output, the second input of the AND 5 element is connected to the output of the OR 3 element, counter 6 and. M Chulsov, to the summing input of which the output of the AND 5 element is connected, the AND 7 element, which inputs are connected to the counter outputs 6 pulses, a pulse shaper 8, to the input of which an output of an AND 7 element is connected, a delay element 9 whose input is connected to one of the inputs of an AND 2 element and with an output of a pulse shaper 8 of an impulse, an OR 10 element whose first input is connected to an inverse input of an AND element 5, with the summing m input of the counter i pulses 1 and the input thickness 11, the output of the delay element 9 is connected to the reset input of the counter I of pulses and to the second input of the element OR 10 whose output is connected to the reset input of the counter 6 pulses, the output of the element I 2 connected to the output women 12 th selector pulse series duration is as follows. In the initial state, the counters 1 and 6 are in the zero position. The pulses from the output of the generator 4 through the element AND 5 do not pass. The pulses that rotate on the bar II are detected by the counter 1. A signal from the single output of one or several triggers of the counter 1 through the element OR 3 is prepared for opening the element AND 5. After it is finished element 5 of each pulse of the series opens, and during a pause between two pulses of a series, generator 4 impulses start to arrive at the summing input of counter b. If the pause between two pulses of a series is less than the set value, then when the next pulse appears Rhee closes AND gate 5 and through the OR gate 10 is reset to the original position counter 6. During the effect on the pulse series 11 schine AND gate 5 is closed, and input of the counter 6 sum.miruyuschy pulses generator 4 is not received. At the moment of the end of the impulse of the series, the element And 5 opens up again, and the device works as described until the pause between any impulses of the series becomes more than the set value. In this case, at the moment when the number of pulses in the counter 6 is fixed, corresponding to its set pause size, the element 7 is triggered. The pulse from the output of the element 7 is generated in duration and from the output of the imaging unit 8 goes to one of the inputs of the element II 2 and to the input of the element 9 delays. If by the moment of arrival of the pulse from the output of the imaging unit 8, the counter 1 records the number of impulses of the series corresponding to the selected duration of the series, then the impulse from the output of the imaging unit 8 passes through the element 2 to pin 12, indicating the reception of a series of impulses of a given duration. If in the counter 1 the number of pulses is recorded that does not correspond to the selected duration of the series, then the impulse from the output of the driver 8 to the bar 12 is not passed. Through the delay time. from the output of the delay element 9, the impulse inputs of the counters 1 and 6 directly and through the element OR 10 a pulse arrives, which sets them to the initial state. The device is ready to analyze the next series of pulses. Element AND 2 by the appropriate connection of the trigger outputs of counter 1 is adjusted to the set pulse train duration. Element And 7 by the appropriate connection of the outputs of the triggers of the counter 6 is adjusted to a value slightly exceeding the maximum allowable duration of the pause between impulses of the series. Thus, the proposed device reports the arrival at the input of a series of pulses of predetermined duration with a greater accuracy of fixing the moment of termination of the series of pulses in comparison with known devices. Claims of the pulse series selector, containing a pulse counter, the summing input of which is connected to the output of the first element I, the first input of which is connected to the output of the pulse generator, and the second input - to the input bus, and outputs to the inputs of the second element And, the pulse shaper , the output of which is connected to the input of the delay element, the third element AND, characterized in that, in order to expand the functionality, two OR elements and an additional pulse counter are added to it, summing the stroke of which is connected to the input bus and the first input of the first element OR, the reset input is connected to the second input of the first element OR whose output is connected to the reset input of the first pulse counter, and to the output of the delay element, the first outputs to the inputs of the third element AND, another input which is connected to the input of the delay element, and the second outputs through the second element OR with the third input of the first element AND, the output of the second element AND connected to the input of the pulse shaper. Sources of information taken into account during the examination 1. USSR author's certificate No. 598229, cl. H 03 K 5/20, 1975. 2. USSR author's certificate for application number 2620430, cl. H 03 K 5/20, 1978.