SU1338018A2 - Pulse generator - Google Patents

Abstract

The invention can be used in software control systems for generating pulses and pulse sequences. The invention provides for expanding the functionality of the generator by expanding the range of the duration of the single pulses that are generated, or their sequences. The device contains a master oscillator 1, a counter 2 pulses, a unit 3 of comparison, a sensor 4 of pulse duration, a divider of frequency 5, a sensor 6 of a period 00 00 14)

Description

133801

pulse repetition, trigger 7, pulse count sensor 8, additional comparison block 9, counting trigger 10, AND 11-13 elements. If there is a single voltage level at the control input, these devices can generate pulse sequences with a repeat period of 1

The invention relates to a pulse technique, can be used in software systems for controlling the formation of pulses and pulse sequences, and is an improvement of the pulse generator according to auth.s. No. 957419.

The purpose of the invention is to expand the functionality of the pulse generator by expanding the range of the duration of the generated single pulses or their sequences.

FIG. 1 shows a structural diagram of a pulse generator; Fig.2 timing diagram of the device.

The pulse generator contains a master oscillator 1, a pulse counter 2, a comparison block 3, a pulse width sensor 4, a frequency divider 5, a pulse repetition period 6, a trigger 7, a pulse number sensor 8, an additional

block U, comparison, trigger trigger 10, first 11, second 12 and third 13 elements I.

The information inputs of the pulse generator are the information inputs of sensors 4, 6, 8. The control input of the generator is connected to the first input of the element 13 and the second input of the element 12 and the reset input of the counting trigger 10. The output of the device is the output of trigger 7. An additional output of the device is the direct output of the counting trigger 10 connected to the first input of the element 11 and the inhibiting input of the block 9 the output of the element 13 is connected to the counting input of the counting trigger 10, the inverse output of which is connected to

eight

rhenium, equal from Z-tj, to "tg, and a duration equal to from one t to 8mo, kc Kmox-o, where to is the pulse duration; ,;., - the maximum conversion factor of the frequency divider 5; maximum conversion rate of the pulse counter. 2 Il.

,

sh

15 -

20

25

30 40 the first input element And 12, the output of which is connected to the inhibitory input of the unit 3, the output of which is connected to the first input of the trigger 7 and the second input of the element 11, the output of which is connected to the additional installation input of the pulse counter 2 and the additional input of the frequency divider, the output of which connected to the second input element And 13 and the inputs of sensors 4, 6 and 8. The output of the master oscillator 1 is connected to the counting input of the counter 2, the outputs of the bits of which are soy; dd1neny with the first groups of inputs of blocks 3 and 9, and the installation input is connected to the second trigger input 7, the output of block 9 and the input of frequency divider 5, the control inputs of which are connected to the outputs of sensor 8. The outputs of sensor 4 are connected to the second group of inputs of block 3, and the outputs of sensor 6 are connected to the second group of inputs of block 9. Codes to sensors 4, 6 and 8 are recorded when a pulse is applied to their inputs from the output of frequency divider 5. To set the device to start, for example, the device can have a start button (or a trigger input), when pressed, in the simplest case, the impulses to record information in these sensors are generated at the inputs of sensors 4, 6 and 8. In this case, the frequency divider 5 is supplemented with an OR element, the first input of which is connected to the output of the frequency divider 5, the second input is connected to the trigger pulse sensor (not shown), and the output is connected to the second input of the AND element 13 and the sensor inputs 4 6 and 8.

The pulse generator works as follows.

3133

If it is necessary to form a sequence of pulses consisting of a certain number of pulses of short duration, level O is present at the control input of the device (Fig. 2, a), as a result of which element E13 (figure 2g) is closed at the first input, element I 12 (Fig. 2, i) is closed at the second input, and at the direct output of the counting trigger 10 (Fig. 2 d), O is present, closing the element II II (Fig. 2 l) at the first input. Due to this on

blocking inputs of blocks 3 and 9 compared to 5 times J, a level O is formed, and they are ready for operation.

Let the information inputs

a sequence of K 6 pulses following with a period of 7 t and having a duration () to (7-2) .t 5 t. With a similar pulse sensor 4, the pulse duration can be any number code, for example, 14 4, the information inputs of the sensor 6 for the pulse repetition period - the code number j | 6, at the information inputs of the pulse number sensor 8 is the code of the number K1 5. At the time of forming the pulse, the output of the frequency divider 5 ((lig. 2 c) records the indicated codes i ,, j,, K, respectively

ha sequence of pulses with the number of pulses from one to (where K., is the maximum conversion factor of the frequency divider 5), in series, with a repetition period from 2 to

sensors 4, 6 and 8. Pulses with a period of following t from the output of the master oscillator 1 (Fig. 2 b) arrive at the counting input of the counter 2 pulses, changing its state from 0 to j. When the code of the number i, 4 is fixed in the pulse counter 2, the output of the comparison unit 3 (Fig. 2k) generates a pulse that sets the trigger 7 on the first input to the unit state (Fig. 2m). The pulse counter 2 continues to count, and at the moment when the code of the number J, 6 is fixed in the pulse counter 2, a pulse is generated at the output of the comparison block 9 (Fig. 2 g), which writes a unit to the frequency divider 5, resets the pulse counter 2 and the trigger 7. The pulse counter 2 continues to count and when the code of the number J is again fixed in it, the next pulse is formed at the output of the comparison block 9, setting the pulse counter 2 and the trigger 7 to the zero state and writing the next unit to the divider 5

thirty

35

JMOKC JMQKC maximum pulse counter conversion factor 2), duration from one t to (j -D t.

If it is necessary to form single pulses of long duration or their sequence, a single voltage level is applied to the control input of the device, preparing for operation element 13 on the first input and element 12 on the second input. As a result, the first pulse generated at the output of frequency divider 5 not only writes into the sensors 4, 6 and 8 codes of numbers that are present at their information inputs (for example, ij 4, J, 4, Кз 4), but also through element 13 A trigger 10 arrives at the counting input, as a result of which a unit level is formed at its direct output, which prepares element I 1I to work on the first input and prevents the formation of pulses at the output of the comparison block 9, and at the inverse output of the counting trigger 10 ( Fig. 2e) a zero voltage level is formed, closed element And 12 at the first entrance, resulting in

40

50

frequencies. Further, the operation of the device gg by the heating input of the comparison unit 3 is similar, with the zero level being maintained, its operation is allowed. Impulses with a period

This output of the trigger 7 pulses, the next with a repetition period j, t (j 6tg and having a duration of his work. The pulses from

 from the output of the master oscillator 1

arrive at the counter count input

value equal to (j, -i) t, - (6-4) "

 t 2-t

about

After a time equal to JiK, tg, i.e. after forming at the output of block 9 of the comparison of the K, th (K, 5) pulse, at the output of frequency divider 5, an overflow pulse is again formed, which is fed to the inputs of sensors 4, 6 and B by recording codes of numbers in them information inputs, for example ij 2, jj 7, kj 6. In this

In the case of a device output over time J, a sequence of K 6 pulses is generated, which follow a period of 7 t and have a duration () to (7-2) .t 5 t. Similarly, the sequence of pulses with the number of pulses from one to (where K., is the maximum conversion factor of the frequency divider 5), in series, with a repetition period from 2 to

0

five

JMOKC JMQKC maximum pulse counter conversion factor 2), duration from one t to (j -D t.

If it is necessary to form single pulses of long duration or their sequence, a single voltage level is applied to the control input of the device, preparing for operation element 13 on the first input and element 12 on the second input. As a result, the first pulse generated at the output of frequency divider 5 not only writes into the sensors 4, 6 and 8 codes of numbers that are present at their information inputs (for example, ij 4, J, 4, Кз 4), but also through element 13 arrives at the counting input of trigger 10, as a result of which a unit level is formed at its direct output, which prepares element I 1I to work on the first input and prevents the formation of pulses at the output of comparison unit 9, and at the inverse output of counting trigger 10 ( Fig. 2e) voltage level zero formed, closed And 12 at the first entrance, so that

0

0

YOUTH his work. Pulses with period

YOUTH his work. Impulses with

 from the output of the master oscillator 1

arrive at the counter count input

pulses

51338018

When in the counter 2 we impulse those on the average 6

The code of the number ij 4 is fixed, the pulse that sets the trigger 7 into one state is formed at the output of the comparison block 3, and through the AND 1 1 element enters the additional installation input of the counter 2 pulses, resetting it to zero, and also the additional divider input 5 frequencies, changing its state by one. The pulse counter 2 continues to count, and when the number i is again fixed in it, the comparison unit 3 again generates a pulse, resetting the counter of 2 pulses to zero, the subframe for three IT ep 7 and writing the next pulse to the frequency divider 5. After a time equal to, since the formation of the last of the pulses at the output of the frequency divider 5, i.e. after forming at the output of block 3 and at the output of element 11 of the pulse (Cd 4), the output of the frequency divider 5 again generates an overflow pulse that goes to the inputs of sensors 4, 6 and 8 confirming the codes recorded in them

J

3

TO.

(present at the information inputs of sensors 4, 6 and 8, respectively), as well as at the second input of the element I 13, the pulse from whose output goes to the counting input of the counting trigger 10, converting it to the zero state. At the same time, at the inverse output of the counting trigger 10, a single voltage level is formed, which, through the element 12, prohibits the formation of pulses at the output of the comparison unit 3. The zero voltage level from the output of the counting trigger 10 enables the operation of block 9 and closes the element 11 at the first input. Pulses from the output of the master oscillator 1 are sent to the counting input of the counter 2 pulses, changing its state from O to j. the counter 2 locks the code of the number Jj "output of the comparison block 9, a pulse is formed, which resets the trigger 7, the counter 2 and writes the unit to the frequency divider 5. Next the pulse counter 2 continues to count and when the number J reappears in it again, block 9 again generates momentum brasyvayuschy counter 2 null state confirmation trigger 7 and recording another

pulse to divider b frequency. After a time equal to, i.e. after forming at the output of the comparison unit 9 (Kj 4) a pulse, the output of the frequency divider 5 again generates an overflow pulse, which is fed to the inputs of sensors 4, 6 and 8, confirming the data recorded in them

0 codes i, J ,, Kj, as well as to the second input of the element I 13, the pulse from the output of which goes to the counting input of the counting trigger 10, converting it to one state. Further process

5, the formation of a single and zero parts of long pulses is repeated. At the same time, at the direct output of the counting trigger 10, a sequence of pulses is formed with a tracing period equal to (1з + j,),

 (4 + 4), 4-t 32

to, and a duration of 4-4.t 16t, and at the output of trigger 7, a sequence of pulses is formed with a sequence period of (i + J e) h t (4-t-4) 4-te 32.t, and a duration of (1 (K, -1) + j,) “t (4. (4-1) + 4). T„ 16.t ,.

Thus, in the presence of a single voltage level at the control input of the proposed device, it is possible to form a sequence of pulses with a repetition period equal to 0

from 2-tg to 2J

K h Pug - about

equal to one

J t / - 4-max Mcikc 0

AND DLIDO

0

AT

0

five

Claims (1)

Invention Formula Pulse generator auth.St. No. 957419, characterized in that, in order to expand the functionality, three AND elements and a counting trigger are introduced into it, the direct output of which is connected to the inhibitory input of the additional comparison unit and the first input of the first AND element, the output of which is connected to the additional input of the frequency divider and an additional installation input of a pulse counter, and the second input of the first element I is connected to the output of the comparison unit, the prohibiting input of which is connected to the output of the second element I, the first input of which is connected to the inv A digital output of the counting trigger, the reset input of which is connected to the second input of the second element And and the first input of the third element And, the output of which is connected to the counting input of the counting trigger, and the second input is connected to the input of the pulse duration sensor. fie2 Compiled by A. Perfilyev Editor N. Kishtulinets Tekhred V. Kadar Proofreader A. Obruchar Order 4142/53 Circulation 901 Subscription VIMIPI USSR State Committee for inventions and discoveries M4i) iS, Moscow, Zh-35, Raushsk nab. D. 4/5 Etc oii: i.; -. 1 H NN - printing company, Uzhgorod, st. Project, 4