SU1451840A1 - Pulse shaper - Google Patents

Abstract

The invention can be used in systems for processing and generating pulse signals. The purpose of the invention is to expand the functionality by allocating a pulse corresponding to a pause between the first and second pulses of the series. The device contains a KS-flip-flop 1, a key 2 with a control signal memorization, a bus 5 of a series of pulses, a bus 6 of control. The introduction of the RS-flip-flop 4 and the element OR-NOT 3 allows you to select not only the first impulse of the series, but also the impulse corresponding to the pause between the first and second impulses of the series, which enhances its functionality. 2 Il.

Description

4 SL

(y.

The invention relates to a pulse technique and can be used in systems for processing and generating pulse signals.

The purpose of the invention is to expand the functionality by allocating a pulse corresponding to the pause between the first and second pulses of the series.

FIG. 1 is an electrical functional diagram of the device described; in fig. 2 - time diagrams that show his work.

The device for generating pulses contains two triggers 1 and 2, an element OR-NOT 3, a key 4 with control signal storage, a bus 5 of a series of pulses, a bus 6 of control and output buses 7–9, with the bus 5 connected to the information input of a key 4 and the first input of the element OR- NOT 3, the output of which is connected to bus 8, the second input - to the input of the control key 4 and the output of the trigger 1, and the third input to the output of the trigger 2, the S input of which is connected to the first output of the key 4 and output bus 9, and the R input with a control bus 6 and the S input of trigger 1, the R input of which is connected to key output 4 and output bus 7.

The device for generating pulses works as follows.

To bring the device back to its original state, a pulse must be sent to bus 6, under the action of which, the direct outputs of the flip-flops 1 and 2 are set to levels 1 and O, respectively. In the initial state

Tires on tires 5-9 are U levels.

The operation of the device is explained in the time diagrams shown in FIG. 2, which show the signals at the following points of the functional circuit: on bus 6 (a), on bus 5 (b) "at the direct output of the trigger

1 (c) at the forward trigger output

2 (d), on the second output of the key 4 and on the bus 7 (d), on the output of the element ORI-3 and on the bus 8 (e), on the first output of the key 4 and on the bus 9 (g).

The first impulse of the series, arriving at bus 5, passes from the information input of key 4 to its second output, because at the control input of key 4 there is a level 1 from the direct output of trigger 1. From the second output of key 4 this impulse arrives 1451840

five

em to bus 7 and reset input of trigger 1, as a result of which trigger 1 is set to state A. Despite the fact that at the moment of action on the information input of key 4 of the first pulse of the series, its signal level changes from l to O, This pulse is formed completely at the second output of this key and is not formed at its first output. At the moment of forming the trailing edge of the first pulse of the series on the bus 5, all three inputs of the element OR NO 3 have levels O, resulting in a level 1 at its output and tire 8. Under the action of the second series impulse received on the bus 5, the output OR-NOT 3 and bus 8 is set to level O. In addition, the second impulse of the series passes from the information input to the first output of the key 4 and goes to the bus 9 and the installation input to 1 flip-flop 2, B resulting in a level 1 at its direct output and the third input of the OR-NOT 3 element. Each of subsequent impulses of the series pass from bus 5 to bus 9 and a single state of flip-flop 2 is confirmed. From the moment of forming the second impulse of the series on bus 5 and until the end of the series of impulses, the subsequent formation of impulses on bus 8 does not occur The element OR-NOT 3 was blocked by the third input by level 1 from the direct output of trigger 2. In order to return the device to its initial state at the end of a series of pulses, a pulse must be sent to bus 6.

Thus, as a result of the operation of the device, a first impulse of the series is formed on bus 7, an impulse on bus 8, the temporary position and duration of which correspond to the pause between the first and second impulses of the series, and on bus 9 - a series of impulses without the first impulse.

In this case, if a series of pulses is accompanied by an envelope, then there are no special pulses providing the initial state of the device before and after receiving a series of pulses, since it is sufficient to send a pulse to bus 6

negative polarity envelope. In this case, in the initial state on bus 6 there is always a level 1, and during a series of impulses - level O.

Claims (1)

Invention Formula A device for generating pulses, containing a key with a control signal memorization, whose information input is connected to a bus of a series of pulses, and a control input to an output of a first trigger, the S input of which is connected to a control bus, and an R input with a first output bus and the first output of the key with the storage of the control signal, the second output of which is connected to the second five output bus, so that, in order to extend the functionality due to the formation of not only the first pulse of the series and the series without the first pulse, but also the formation of a pulse corresponding to the pause between the first and the second pulse of the series, the second trigger is entered into it, the third output bus and the element ORI, whose output is connected to the third output bus, the first input - with the pulse train, the second input - with the output of the first trigger, and the third input - with the output of the second trigger, the R-input of which is connected to the shea control, and the S-input - with a second output bus. (ree.2