SU957450A1

SU957450A1 - Clocking pulse reserved shaper

Info

Publication number: SU957450A1
Application number: SU802990815A
Authority: SU
Inventors: Михаил Игоревич Краснокутский
Original assignee: Предприятие П/Я М-5537
Priority date: 1980-10-03
Filing date: 1980-10-03
Publication date: 1982-09-07

Description

Изобретение относитс к автоматике и вычислительной технике и быть использовано при построении высоконадежных генераторов дл формировани тактовых импульсов в многоканальн резервированных системах.The invention relates to automation and computing and to be used in the construction of highly reliable generators for generating clock pulses in multichannel redundant systems.

Известен резервированный фррмирователь тактовых импульсов, содержащий в каждом канале задающий генератор , делитель частоты, элемент И, триггер и мажоритарный элемент f .A redundant clock pulse generator is known, which contains in each channel a master oscillator, a frequency divider, an AND element, a trigger, and a majority element f.

Недостаток этогоформировател соетоит .в том, что во врем отказа рабочего генератора или многоустойчивого триггера, на всех выходах формировател могут возникнуть импульсные . сигналы, длительность которых имеет случайный характер.The disadvantage of this former is that it causes impulses may occur at all outputs of the former at the time of the failure of the operating generator or the multistable trigger. signals whose duration is random.

Наиболее близким к предлагаемому вл етс резервированный формирователь тактовых импульсов, содержащий в каждом канале задающий генератор, сое-, диненный с делителем частоты, формирователь одиночного иктульса, входы которого соединены с задающим генератором и выходом мажоритарного элемента , а выход подключен ко входам установки в 0 делител частоты и через элемент задержки к входу установки в О триггер, другой вход которогоClosest to the proposed is a redundant clock pulse generator, which contains in each channel a master oscillator connected to a frequency divider, a single ictus former whose inputs are connected to the master oscillator and the output of the majority element, and the output is connected to the inputs of the 0 divider unit frequency and through the delay element to the input of the installation in the trigger, another input which

подключен к выходу элемента И, а выход триггера каждого кангша - к соответствующим входам мажоритарного элемента 2 .connected to the output of the element And, and the output of the trigger of each kangsha - to the corresponding inputs of the majority element 2.

Недостаток устройства состоит в том, что при отказе одного генератора в соответствующем канале не вырабатывсштс тактовые импульсы, а при отказе двух генераторов, тактовые The drawback of the device is that if one generator fails in the corresponding channel, the clock pulses are not generated, and if two generators fail, the clock

10 импульсы не вырабатывак1ТС во всех каналах. Кроме того, в указанном формирователе присутствует ошибка синфазировани разность во времени по влени передних фронтов выходных сиг15 налов во всех каналах формировател ),10 pulses are not output in all channels. In addition, in the specified driver, there is an error synphating the time difference in the occurrence of leading edges of the output signals in all channels of the driver)

соизмерима с периодом следовани импульсов от задающего генератора, котора часто не позвол ет примен ть тактовые импульсы в качестве меток commensurate with the period of the pulse from the master oscillator, which often does not allow the use of clock pulses as labels

20 начсша отсчета временной циклограмкы , временно1;о интервалаи т.п. в резервированных системах автоматики и вычислительной техники.20 beginning of the timeline, temporarily1; about the interval, etc. in the reserved systems of automation and computing.

Цель изобретени - повышение на25The purpose of the invention is an increase of 25

дежности и точности устройства.reliability and accuracy of the device.

Поставленна цель достигаетс тем, что в резервированный формирователь тактовых импульсов, содержащий в каждом канале задающий гене30The goal is achieved by the fact that a redundant clock pulse generator containing in each channel a master gene 30

Claims

A slot connected to the divider and a single pulse shaper are entered; A pulse transformer and an OR element connected to the input of a single pulse former, the output of which is connected to the second input of a divider, whose output is connected to the primary winding of a pulse transformer, the secondary windings of each pulse transformer are connected to the corresponding inputs of each of the OR elements. The drawing shows the block diagram The proposed shaper of tactile pulses, where, in each of the n (where) identical channels, there is a master oscillator, a divider 2; pulse transformer 3, element OR 4, shaper 5 single pulse. The downstream generator 1 is connected to the frequency divider. The divider output is connected to the primary winding of the pulse transformer 3, which has n secondary windings (by the number of the channel. Each secondary winding of the pulse transformer is connected to the corresponding input of the n input element OR 4. The output element OR is connected by a driver A single pulse. In this case, the input of a single pulse generator 5, which is the output of the channel of the device, is connected to the input of the installation in zero of the divider 2. The device works as follows. The generator is energized. Since the generator is randomly excited, first in one of the channels, for example in the first one, a signal appears at the output of divider 2 and through an impulse transformer. 3 simultaneously. It enters the inputs of the OR 4 and to all channels of the device. At the outputs of the OR elements of all channels, signals appear, according to which the formers of a single pulse 5 produce in-phase clock pulses. These pulses simultaneously set to zero divider 2 in all channels. After setting dividers 2 into O, the cycle of operation of the device is repeated. Claims of the invention The redundant clock pulse generator, containing in each channel a master oscillator connected to the divider and a single pulse driver, is distinguished by the fact that, in order to increase the reliability and accuracy of the device, c. Each channel has a pulse transformer and an OR element connected to the input of a single pulse generator, the output of which is connected to the second input of the divider, the output of which is connected to the primary winding of the pulse transformer, the secondary windings of each pulse transformer are connected to the corresponding inputs of each of the elements. OR. Sources of information taken into account during the examination 1. USSR author's certificate No. 488209, cl. G About F 11/20, 1974.

2. USSR author's certificate number 632108, cl. H 05 K 10/00, 1976 (prototype).