SU991588A1

SU991588A1 - Time interval shaping device

Info

Publication number: SU991588A1
Application number: SU803219603A
Authority: SU
Inventors: Владимир Николаевич Васильев; Владимир Васильевич Казаков; Сергей Георгиевич Старостин; Виктор Дмитриевич Соколов; Алексей Иванович Захаров
Original assignee: Предприятие П/Я Г-4257
Priority date: 1980-12-17
Filing date: 1980-12-17
Publication date: 1983-01-23

Description

(S) УСТРОЙСТВО ДЛЯ ФОРМИРОВАНИЯ ВРЕМЕННЫХ ИНТЕРВАЛОВ(S) DEVICE FOR THE FORMATION OF TEMPORARY INTERVALS

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Изобретение относитс к импульсной технике и может быть использовано в системах единого времени, в частности , как устройство дл формировани интервалов напр жений по сигналам точного времени, когда необходим дополнительный сигнал, используемый дл корректировки вторичных часов.The invention relates to a pulse technique and can be used in single-time systems, in particular, as a device for generating voltage intervals from exact time signals when an additional signal is needed to adjust the secondary clocks.

Известно устройство дл формировани временных интервалов, содержащее генератор тактовой частоты, генератор случайных сигналов, триггер, два элемента И, делитель частоты Г П.A device for generating time intervals is known, comprising a clock frequency generator, a random signal generator, a trigger, two AND elements, a frequency divider G P.

Однако данное устройство не обладает достаточно высокой точностью и 5 .надежностью.However, this device does not have a sufficiently high accuracy and 5. Reliability.

Наиболее близким по,технической сущности к изобретению вл етс устройство дл формировани временных интервалов, содержащее генератор так-20 товых импульсов, триггер, элементы И, ИЛИ, НЕ, элементы задержки 2 .The closest in technical essence to the invention is a device for the formation of time intervals, containing a generator of tak-20 pulse, a trigger, elements AND, OR, NOT, delay elements 2.

Однако известное устройство также не достаточно надежно работает.However, the known device also does not work reliably enough.

Целью изобретени вл етс повышение надежности работы устройства.The aim of the invention is to improve the reliability of the device.

Claims

The goal is achieved by the fact that in a device for forming time intervals, comprising a clock pulse generator, the output of which is connected to the first input of the NAND element; the second input of which is connected to the trigger output, the first input of which is connected to the output of the element NOT through the OR-NOT element, two elements. delays, the pulse former, the partial divider, are added. And element and two flip-flops, where the output of the NAND element is connected to the first inputs of the first additional trigger, the frequency divider and the And element, the second input of which is connected to the output of the additional first trigger, the second input of which is connected to the second inputs of the trigger, frequency divider and through serially connected pulse generator and the first element of the rear: kk - to the first output of the second third additional trigger, the second output of which is connected through the second delay element to the input of the HE element, the first input of the second This additional trigger is connected to the output of the element I, and the second input is connected to the output of the frequency divider. The drawing shows a functional diagram of the device. A device for forming time intervals includes a generator of 1 clock pulses, a divider 2 frequencies, an element of AND 3, an element of OR-NOT k, an element of AND-NO 5, triggers 6-8, elements 9 and 10 of the delay, a element of NOT PI driver 12 IMPULSES. The drawing also shows the control signal bus 13 and the output bus 1A. . The operation of the device for forming up to the time intervals is as follows. When the signal is busted across the bus 13 to the input of the element OR-NOT k, a logical zero appears at its output, therefore, the trigger 6 switches through the S-input and the logical unit arrives at the input of the element AND-NOT 5. The other input of the NAND 5 element receives pulses from the output of the generator 1. The inverted pulses are removed from the output of the NAND 5 element, which are fed to the inputs of the splitter 2 frequency, the element 3 and the S input of the trigger 7. The first difference Lines taken from the output of the element AND-NOT 5. RS-trigger 7 switches on the S-input. At the same time, the first voltage drop taken from the output of the element AND-HE 5, through the element 3, switches the trigger 8 on the S-input, from one the output of which is taken signal arriving at the output bus 1st. After a predetermined time, determined by the division factor of the divider 2 frequency and the frequency of the generator 1, a voltage drop is removed from the frequency divider 2, which triggers the trigger 8 to the original. The second position of the voltage of the delay element of the delay element 9 is chosen to be very small, less than the time interval between two adjacent pulses taken from the output of the generator 1, so after a short time, the trigger 6 switches over 7 in the initial state. One 5 15 4 temporarily zero divider 2 frequencies occur. Since the trigger 6 has returned to its original state, then the first input of the element AND-NOT 5 has a logical zero (the element is closed) and therefore the voltage pulses taken from the output of the generator 1 are not input to the divider 2 frequency. The device is in the standby mode of the drive signal on the bus 13 to the first input of the element OR NOT t. The waiting time is determined by the time constant of the delay element 10 and determines the tolerable error of the formation time of the leading edge of the output voltage. If during this time the signal from the bus 13 is received at the first input of the element OR NOT C, then the whole cycle of the device operation will be repeated. If during the time determined by the delay element 10, the signal on the bus 13 does not arrive at the input of the OR-NOT 4 element, then the signal taken from the output of the trigger 8, through the delay element 10 and the NOT 11 element, will go to another input of the OR element -NO 4 further described work cycle. repeat Thus, the proposed device, in comparison with the known, allows forming time intervals with higher accuracy and reliability. Apparatus of the Invention A device for forming time intervals, comprising a clock pulse generator, the output of which is connected to the first input of the NAND element, the second input of which is connected to the trigger output, the first input of which is connected to the output of the NO element through the ILY element, two delay elements characterized in that, in order to increase the reliability of the device, a pulse shaper, a frequency divider, an AND element and two triggers are additionally introduced into it, the output of the AND-NE element is connected to the first inputs of the first Trigger, frequency divider and element And, the second input of which is connected to the output of the additional first three | - gera, the second input of which is connected to the second inputs of the trigger, frequency divider and through the series-connected pulse shaper and the first delay element to the first output second additional trigger 5991588,. 6

pa, the second output of which is connected. Sources of information, through the second delay element to the input, taken into account during the examination of the element, NOT, the first input of the second supplement 1. The USSR author's certificate of the complementary trigger is connected to the If, cl. H 03 K 3/8, 17.06.75. by the course of the element I, and the second input is reduced by j

2. USSR author's certificate with the release of the frequency divider. If 677079, class H 03 KZ / 8, 1977.

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