SU883858A1

SU883858A1 - Time interval forming device

Info

Publication number: SU883858A1
Application number: SU802896635A
Authority: SU
Inventors: Сергей Иванович Емец; Николай Иванович Кийко; Игорь Давыдович Петренко; Виталий Аврамович Резвицкий; Валерий Петрович Маматов
Original assignee: Предприятие П/Я Г-4220
Priority date: 1980-03-25
Filing date: 1980-03-25
Publication date: 1981-11-23

Description

1one

- Изобретение относитс к импульсной технике.- The invention relates to a pulse technique.

Известно устройство дл формировани временных интервалов, содержащее генератор эталонной частоты, делитель частоты, элемент совпадени , триггер запуска и счетчик -временных интервалов 1 .A device for generating time intervals is known, which comprises a reference frequency generator, a frequency divider, a coincidence element, a trigger trigger, and a counter — time intervals 1.

Недостатком устройства вл етс невысока надежность этого устройства .The disadvantage of the device is the low reliability of this device.

Наиболее близким к предлагаемому по технической сущности вл етс устройство дл формировани временных интервалов, содержащее генератор ; эталонной частоты, де.питель частоты, мультиплексор, регистр масштаба и счетчик временных интервалов, причем выход генератора эталонной частоты подключен к счетному входу делител частоты, выходы которого соединены с инфор1 1ационнь1ми входами мультиплексора, установочный вход которого св зан с первым выходом регистра масштаба, а выход.мультиплексора подключен к первому входу счетчика временных интервалов Dl Недостатком известного устройства вл ютс недостаточно высока надежность .и ограниченные функциональные возможности.Closest to the proposed technical entity is a device for the formation of time intervals, containing the generator; a reference frequency, a frequency splitter, a multiplexer, a scale register and a time interval counter, the output of the reference frequency generator connected to the counting input of a frequency divider, the outputs of which are connected to the multiplexer’s 1 input inputs, the setup input of which is connected to the first output of the scale register, and the output of the multiplexer is connected to the first input of the time interval counter Dl. A disadvantage of the known device is not high enough reliability. and limited functionality.

Цель изобретени - повышение надежности и расширение функциональных возможностей устройства за счет формировани как одиночных временных интервалов, так и последовательностиThe purpose of the invention is to increase the reliability and enhance the functionality of the device by forming both single time slots and a sequence

их.their.

Поставленна цель достигаетс тем, The goal is achieved by

10 что в устройство дл формировани временных интервалов, содержащее генератор эталонной частоты, выход которого подключен через делитель часто.ты к информсщионным входам 10 that in a device for forming time intervals, containing a generator of a reference frequency, the output of which is connected via a divider often to information inputs

15 мультипле15сора, адресные входы кбторого соединены с разр дными выходами регистра масштаба, выход мультиплексора подключен к первому входу счетчика временных интервалов, дополни20 тельно введены два элемента ИЛИ и регистр данных, разр дные входы которого соединены с разр дными входами регистра масштаба, вход запуска которого подключен к входу запус25 ка регистра данных и первому входу первого элемента ИЛИ, выход которого соединен со вторым входом счетчика временных интервалов, выход которого подключен ко второму входу первого 15 multiplexer, address inputs of the second one are connected to the bit outputs of the scale register, the output of the multiplexer is connected to the first input of the time interval counter, additionally introduced two OR elements and a data register, the bit inputs of which are connected to the bit inputs of the scale register, the trigger input of which is connected to the start of the data register and the first input of the first OR element, the output of which is connected to the second input of the time counter, the output of which is connected to the second input of the first

Claims

30 of the OR element and the first input of the second OR element, the second input of which is connected to the third input of the first OR element and the output of the scale register, the output of the second OR element is connected to the input of the reference frequency generator, and the bit outputs of the data register are connected to single inputs of a time counter. The drawing shows a block diagram of the device. The device contains a generator of the I reference frequency, a divider 2 frequencies, a multiplexer 3, a scale register 4, a counter of 5 time intervals, a data register 6, and –8 OR elements, a start bus 9 and 10, an output to the bus 11. The device works as follows . In the initial state, the signal from the bus 11 of the device, through element 8 OR, is fed to the input of the generator 1 of the reference frequency, prohibiting its operation. When a signal appears on bus 9, data on the duration of the time interval and the mode of operation of the device from the bus 10 data are recorded in the register of 4 scales and, through the data register B, in the counter of 5 time slots. In this state, the bus 11 is changed in such a way that the prohibition signal from the input of the generator 1 is removed. The reference frequency generator 1 starts producing pulses of frequency fj which are fed to the input of divider 2 frequencies, the outputs of which generate frequency signals associated with the reference frequency of the following relations F-H-10 Ff h-F F1 P The frequency signals F are received to the information inputs of the multiplexer 3, the output of which passes the frequency signal defined by the code coming from the output of register 4 of the scale. The time interval formed on bus 11 is defined as t T M -10, where M is the contents of the data register p, p is the content at the first output of the 4th register of the scale, T is fj Maximum time interval (which can be formed for a given reference frequency f, equal to 2. - tsDHD 0 where m is the size of the register of data b; n is the size of the register of scale 4. In the mode of formation of a single time interval, the signal at the output of scale 4 of the block blocks the operation of element 7 OR. the time interval on the bus 11 is forming A signal which is transmitted through element 8 of the OR signal to the input of the generator 1 by stopping it. In the mode of forming a sequence of time intervals, the signal at the output of the scale register 4 blocks the operation of element 8 OR. At the end of the time interval, a signal is generated on bus 11 7 OR is applied to the installation input of the counter 5 time intervals, recording the contents of data register 6 into it, and the formation of the specified time interval begins again: The device generates sequentially the time intervals until the state at the output of the scale register 4 changes. Thus, the introduction of the proposed device for forming a time interval of the data register and the OR elements allows the formation of both single time intervals and a sequence of time intervals, and synchronizing the start of the reference frequency generator with the beginning of the formation of the time interval allows increasing the reliability of the device. Apparatus of the Invention A device for generating time intervals, comprising a reference frequency generator, the output of which is connected via a frequency divider to the information inputs of a multiplexer, the address inputs of which are connected to the bit outputs of the scale register, the output of the multiplexer is connected to the first input of a time counter, characterized in that in order to increase the reliability and expand the functionality of the device, two additional OR elements and a data register are entered in it odes are connected to the bit inputs of magnitude dnymi register, the start input of which is connected to the input data register and start