SU980259A1

SU980259A1 - Pulse train shaping device

Info

Publication number: SU980259A1
Application number: SU813263871A
Authority: SU
Inventors: Геннадий Петрович Митин; Александр Васильевич Шанин
Original assignee: Предприятие П/Я Г-4273
Priority date: 1981-03-20
Filing date: 1981-03-20
Publication date: 1982-12-07

Description

Изобретение относится к импульсной технике и может быть использовано в качестве программного генератора число-импульсного кода в дискретных системах контроля и управления. ⁵ The invention relates to a pulse technique and can be used as a software generator of a number-pulse code in discrete control and management systems. ⁵

Известно устройство для формирования пачек импульсов, содержащее генератор импульсов, выход которого соединен с первыми входами элемента И и ключа, выход элемента И подключен к первому входу триггера, выход которого соединен с вторым входом ключа, выход ключа является выходом устройства [ 1 J. 15A device for generating bursts of pulses, containing a pulse generator, the output of which is connected to the first inputs of the element And the key, the output of the element And is connected to the first input of the trigger, the output of which is connected to the second input of the key, the output of the key is the output of the device [1 J. 15

Однако данное устройство не позволяет сформировать максимально возможную длительность серин импульсов, равную Т₀(2^п-1) периодов частоты генератора импульсов.. ΜHowever, this device does not allow to form the maximum possible duration of the serine pulses equal to T ₀ (2 ^p -1) periods of the frequency of the pulse generator .. Μ

Наиболее близким по технической сущности к предлагаемому является устройство, содержащее последовательно соединенные генератор импуль2 сов, ключ, счетчик импульсов, блок элементов И и мультиплексор, а также триггер и блок задания числа импульсов в серии импульсов [21.Closest to the technical nature of the proposed device is a device containing a serially connected pulse generator 2 owls, a key, a pulse counter, a block of I elements and a multiplexer, as well as a trigger and a block for setting the number of pulses in a series of pulses [21.

Однако в данном устройстве длительность выходных импульсов не рае-, на длительности входных импульсов, так как длительность зависит от количества импульсов в серии.However, in this device, the duration of the output pulses is not equal to the duration of the input pulses, since the duration depends on the number of pulses in the series.

Цель изобретения - расширение функциональных возможностей устройства.The purpose of the invention is the expansion of the functionality of the device.

Поставленная цель достигается тем, что в устройство для формирования серий импульсов, содержащее генератор импульсов, выход которого подключен к первому входу элемента совпадения, второй вход которого соединен с выходом триггера, первый вход которого соединен с выходом . переполнения счетчика импульсов, программный блок, многовходовой эле-» мент И, дополнительно введены эле менты неравнозначности, первые входы которых подключены к выходам программного блока, вторые входы подключены к разрядным выходам счетчика импульсов, а выходы подключены 5 через многовходовой элемент И к второму входу триггера, кроме того, вход многовходового элемента И соединен с выходом генератора импульсов/ первый вход триггера подключен 10 к управляющему входу программного бло-, ка.This goal is achieved in that in a device for forming a series of pulses containing a pulse generator, the output of which is connected to the first input of the coincidence element, the second input of which is connected to the output of the trigger, the first input of which is connected to the output. pulse counter overflows, program unit, multi-input element AND, additionally introduced elements of ambiguity, the first inputs of which are connected to the outputs of the program unit, the second inputs are connected to the discharge outputs of the pulse counter, and the outputs are connected 5 via the multi-input element And to the second trigger input In addition, the input of the multi-input element AND is connected to the output of the pulse generator / the first input of the trigger is connected 10 to the control input of the software unit.

На чертеже приведена структурная схема устройства для формирования серий импульсов, . 1SThe drawing shows a structural diagram of a device for forming a series of pulses,. 1S

Устройство для формирования серий импульсов содержит генератор 1 импульсов, счетчик 2 импульсов, элементы 3 неравнозначности, многовходовой элемент И 4,'триггер 5, эле- _ммент 6 совпадения, программный блок 7, выходную шину 8.An apparatus for generating a series of pulses comprises a pulse generator 1, the pulse counter 2, elements 3 nonequivalence, multiinput AND gate 4 'trigger 5, element _m cop 6 of coincidence, the program unit 7, the output line 8.

Устройство работает следующим образом.The device operates as follows.

После включения генератор 1 им- 25 пульсов начинает выдавать непрерывную последовательность импульсов с • периодом Т_о , которые поступают на первые входы элемента И 4 и элементаAfter switching on, the generator 1 of 25 pulses starts to produce a continuous sequence of pulses with a period of T _o , which are supplied to the first inputs of the element And 4 and the element

6. Задним фронтом импульса перепоянения, поступающего со счетчика 2₅триггер 5 устанавливается в нулевое состояние и'запрещает прохождение импульсов с генератора 1 через элемент 6 на шину 8 устройства.6. The trailing edge of the overflow pulse coming from counter 2 ₅ trigger 5 is set to zero and prohibits the passage of pulses from the generator 1 through element 6 to the device bus 8.

В паузе между импульсами с программного блока 7, синхронизирован единичном состоянии в течение времени , равного Т₀К. За это время на шину 8 устройства проходит К импульсов с генератора 1. Далее работа устройства продолжается аналогично.In the pause between pulses from the program unit 7, a single state is synchronized for a time equal to T ₀ K. During this time, K pulses from the generator 1 pass to the device bus 8. Further, the operation of the device continues similarly.

Таким образом, предлагаемое устройство для формирования серий импульсов по сравнению с известным позволяет формировать серии с числом импульсов К, причем диапазон изменения импульсов в серии 1$К«2-1, а длительность выходных импульсов равна длительности входных импульсов.Thus, the proposed device for forming a series of pulses in comparison with the known one allows to form a series with the number of pulses K, and the range of pulses in the series is 1 $ K "2-1, and the duration of the output pulses is equal to the duration of the input pulses.

Предлагаемое устройство можно использовать в качестве генератора импульсов с регулируемой длительностью, в этом случае на выходе триггера 5 будут формироваться импульсы длительностью Т_ОК.The proposed device can be used as a pulse generator with an adjustable duration, in this case, pulses of duration T _O K will be generated at the output of trigger 5.

Claims

(B) DEVICE FOR THE FORMATION OF SERIES The invention relates to a pulse technique and can be used as a program generator of a number-pulse code in discrete control and monitoring systems. A device for generating pulse bursts, comprising a pulse generator, the output of which is connected to the first inputs of the AND element and a key, the output of the AND element is connected to the first input of a trigger, the output of which is connected to the second input of the key, is known. However, this device does not allow to form the maximum possible pulse train duration equal to Tr () periods of the pulse generator frequency. The closest in technical essence to the proposed is a device containing series-connected pulse-impulse pulse generator, key, pulse counter, AND and YTL block, as well as trigger and block for setting the number of pulses in a series of pulses 2, However, in this device, the duration of the output pulses is not equal. on the duration of the input pulses, as the duration depends on the number of pulses in the series. The purpose of the invention is to expand the functionality of the device. The goal is achieved by the fact that the device for forming a series of pulses, containing a pulse generator, the output of which is connected to the first input of the coincidence element, the second input of which is connected to the output of the trigger, the first input of which is connected to the output, overflow of the pulse counter, program block, multi-input element And, additional elements were introduced3: Unequalities elements, the first inputs of which are connected to the outputs of the program block, the second inputs are connected to the discharge outputs of the pulse counter, and the outputs Connected via a multi-input element I to the second input of the trigger, in addition, the input of the multi-input element I is connected to the output of the pulse generator, the first input of the trigger is connected to the control input of the program block. The drawing shows a block diagram of a device for forming a series of pulses,. A device for forming a series of pulses contains a generator of 1 pulses, a counter of 2 pulses, elements 3 of unequalities, a multi-input element AND 4, a trigger 5, an element 6 of coincidence, a program block 7, an output bus. The device works as follows. After switching on, the generator G of pulses begins to produce a continuous sequence of pulses with a period TQ, which are fed to the first inputs of the element AND k and the element b. With the falling edge of the overdrive pulse coming from counter 2, trigger 5 is set to Hylie and it prevents the impulses from the generator 1 from passing through element 6 to the bus 8 of the device. In the pause between pulses from the program block 7 synchronized by the overflow pulses from counter 2, the control number K arrives at the AND 4 element. Through a howl, the And K element is prepared to be passed to the pulse output from the generator 1 and the time TQ {K + I), i.e. the trailing edge of the next pulse, the trigger 5 is switched to one state. Element 6 is opened, and the pulses from generator 1 are passed to the bus 8 of the device until the overflow pulse, which is formed in time T (, (2-K-1), will not switch the rep rep 5 to the zero state i.e. K 2 -K-1, where n is the size of counter 2, flip-flop 5 is in a single state for a time equal to TdK. During this time, K passes pulses from the generator 1 to the device bus 8. Next operation of the device proceeds in a similar way. Thus, the proposed device for forming a series of pulses, as compared with the known, allows The series with the number of pulses K, and the range of variation of the pulses in the series, and the duration of the output pulses are equal to the duration of the input pulses. A device for forming a series of pulses comprising a pulse generator, the output of which is connected to the first input of a coincidence element, the second input of which is connected to the trigger input and the first input of which is connected to the overflow output of the pulse counter., a program block, a multi-input element AND, characterized in that, in order to dissipate its functionality, inequality elements are entered into it, the first inputs of which are connected to the outputs of the program block, the second inputs - to the bit outputs of the pulse counter, and the outputs through the multi-input element I to the second input of the trigger, in addition, the input of the multi-input element I is connected to the output of the pulse generator, the first input of the trigger n Connected to the control input of the program block. Sources of information taken into account in the examination 1. The author's certificate of the USSR If, cl. H 03 K 3/78, 1977.

2. Authors certificate of the USSR 752765, “l. H 03 K 3 / 6k, 1978.

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