SU869058A1

SU869058A1 - Circular counter

Info

Publication number: SU869058A1
Application number: SU802864196A
Authority: SU
Inventors: Григорий Александрович Щебликин
Original assignee: Предприятие П/Я В-8117
Priority date: 1980-01-04
Filing date: 1980-01-04
Publication date: 1981-09-30

Description

(54) КОЛЬЦЕВОЙ СЧЕТЧИК(54) RING COUNTER

Изобретение относитс к импульсной технике, в частности к электроизмерительной технике, и может быть использовано в дискретной технике, например в многоканальных счётных системах.The invention relates to a pulse technique, in particular to an electrical measuring technique, and can be used in a discrete technique, for example in multichannel counting systems.

Известен кольцевой счетчик, содержащий триггер запуска со счетным входом и п ть триггеров, соединенных в кольцо через элементы И-НЕ, выходы всех триггеров, за исключением п того, соединены с входами последующих триггеров, и выходы первого триггера со входами п того триггера , через перекрестное соединение, через элементы И-НЕ, а выходы всех триггеров, за исключе1шем первого, соединены с входами предыдущих триггеров , выходы п того триггера соединены со входами первого триггера, нулевой выход которого соединен через элементы И-НЕ с единичными входами нечетных и с нулевыми входами четных триггеров, единичный выходA known ring counter containing a trigger trigger with a counting input and five triggers connected in a ring through the elements of NAND, the outputs of all the triggers, except for the fifth, are connected to the inputs of subsequent triggers, and the outputs of the first trigger with the inputs of the fifth trigger through the cross connection, through the IS-NOT elements, and the outputs of all the triggers, except for the first one, are connected to the inputs of previous triggers, the outputs of the fifth trigger are connected to the inputs of the first trigger, the zero output of which is connected through the IS-NE elements from one odd and zero-even odd trigger inputs, single output

триггера запуска соединен с нулевыми входами нечетных и с единичш ц-{и входами четных триггеров, вход установки нул соединен с нулевыми входами триггеров кольцевой схемы и со входом установки нул триггера запуска, а выходы кольцевого счетчика соединены с выходом элементов И-НЕ 1.the trigger trigger is connected with zero odd inputs and with unit c- {and even trigger inputs, the zero setup input is connected to the zero inputs of the ring circuit triggers and the zero trigger trigger input, and the ring counter outputs are connected to the output of the AND-1 elements.

Недостатками этого кольцевого счетчика вл ютс сравнительно больша сложность и ограниченность его функциональньк возможностей.The disadvantages of this ring counter are the relatively large complexity and limitations of its functional capabilities.

Claims

The closest technical solution to the proposed is a ring counter containing Y) triggers, each of which contains the first and second AND-NOT elements, whose inputs are connected to the outputs of the second and first elements of the same trigger, respectively, the single and zero outputs of which are connected to the outputs the first and second elements of this trigger, as well as the first. the second, third and fourth auxiliary elements AND-NOT, the unit output of each trigger is connected, to the input of the second element AND-NOT, the unit output of the trigger trigger is connected to the input of the second element of the next trigger, the zero output of which is connected to the inputs of the first and second elements AND-NOT preceding the trigger, the outputs of the first and second auxiliary elements AND IS NOT connected to the inputs of the second and first auxiliary elements, respectively, the outputs of the third and fourth auxiliary elements AND IS NOT connected to the inputs respectively, the fourth and third auxiliary elements AND-NOT, the transfer input is connected to the inputs of the second and fourth auxiliary elements AND-NOT, the inputs of which are connected to the input of the ring counter, the input of the zero setting which is connected to the inputs of the second elements AND-NOT of the first Ki-2 TpPirrepoB and the inputs of the first elements AND-NOT and AND triggers, the output of the second auxiliary element AND-NOT connected to the inputs of the first elements AND-NOT odd triggers, the output of the fourth auxiliary element AND-NOT connected to the input of the second auxiliary The NAND element and the inputs of the first AND elements of the even triggers, whose zero outputs are connected to the input of the first auxiliary element of the NAND. The disadvantage of this circular meter is its relatively low speed. The purpose of the invention is to improve the speed. The goal is achieved by the fact that the ring counter containing VI triggers, each of which contains the first and second elements. NAND, whose inputs are connected to the outputs of the second and first elements of the same trigger, respectively, the unified and zero outputs of which are connected to the outputs of the first and second elements of this trigger, as well as the first, second, third and fourth auxiliary elements of AND A single output of each trigger is connected to the input of the second element of the next trigger, the zero output of which is connected to the inputs of the first and second elements of the AND-NEXT previous trigger, the outputs of the first and 84 second auxiliary elements of the IS-NOT are connected to the input Ams of the third and fourth auxiliary elements of the third and fourth auxiliary elements of the NAND, respectively, of the fourth and auxiliary elements of the fourth and third auxiliary elements of the NAND, respectively; the transfer input is connected to the inputs of the second and fourth auxiliary elements of the NAND, whose inputs are connected with the entrance of the ring counter, the input of the installation of which is zero. connected to the inputs of the second AND-NOT elements of the first AND-2 triggers and the inputs of the first AND-NOT AND-1 elements to the C of the flip-flops, the output of the second auxiliary element AND-NOT is connected to the inputs of the first AND-NOT elements of the odd triggers, AND -NOT connected to the input of the second auxiliary element AND-NOT and the inputs of the first elements AND-NOT even triggers, zero outputs of which are connected to the inputs of the first auxiliary element AND-NOT, an additional element IS-NOT, the output of which is connected to the transfer output, The second, second and third inputs of the additional element AND-NOT are connected to the unit outputs of VI-2nd and VI-1st triggers and the output of the second auxiliary element AND-NOT which is connected to the input of the fourth auxiliary element AND-NOT, and the zero outputs are odd triggers are connected to the inputs of the third auxiliary element AND-NOT. The drawing shows a block diagram of a ring counter. The ring counter contains AND triggers, each of which contains the first 2 and second 3 AND-NOT elements, whose inputs are connected to the inputs of the second 3 and first 2, respectively, AND-NOT of the same trigger, the unit and zero outputs of which are connected to the outputs of the first 2 and second 3 elements AND-NOT of a given trigger, as well as the first 4, second 5, third 6 and fourth 7 auxiliary AND-NOT elements, and an additional AND-NOT element 8, the single output of each trigger with the input of the second element 3 of the next trigger whose zero output i.p. iiepjioro 2 5 and second 3 elements AND-NOT of the previous trigger, outputs of the first 4 and second 5 auxiliary elements AND-NOT are connected to the inputs of the second 5 and first 4 auxiliary elements of AND-NOT, outputs of the third 6 and the fourth 7 auxiliary elements are connected to the inputs of the fourth 7 and third six, respectively, AND-NOT, the input 9 of the transfer is connected to the inputs of the second 5 and fourth 7 auxiliary elements AND-NOT whose inputs are connected to the input 10 of the ring counter, the input 11 of the zero setting which is connected to the inputs of the second elements AND-NOT 3 of the first triggers 1 and the inputs of the first elements AND-NOT VI-1st of the triggers 1 VT- and sVl-2, the output of the second auxiliary element AND-NOT 5 is connected to the inputs of the first elements AND-NOT 2 odd triggers, the output of the fourth auxiliary element AND-NOT 7 is connected to the input of the second auxiliary element AND-NOT 5 and the inputs of the first elements. AND-NOT 2 even triggers, zero outputs of which are connected to the inputs of the first auxiliary element AND-NOT 4, output an additional element of AND-NOT B is connected with the output of Transfer 12, the first, second and third inputs of the additional element AND-NOT o are connected to the single outputs of Kl-2nd and I-1st triggers and the output of the second auxiliary element AND-NOT 5, which is connected to the input of the fourth auxiliary element AND-NOT 7, and the zero outputs of odd triggers are connected to input i and the third auxiliary element AND-NOT 6.. The ring counter works as follows. With the arrival of the zero pulse at input 11, the trigger is set to one. The triggers.-2 are set to the -thick state, and the trigger is in a state with single logic levels at its both outputs. At the outputs of the elements HYE 4, 5, 7 and 8, and at the output 12 a single logic level is set, and at the output of the element ISHE 6, a zero logic level is set. In general, the counter is set to a status of 58 issuing a number equal to zero. After the zero setting signal has been completed, a single logic signal is applied to the zero setting input, and the counter continues to issue a code of a number equal to zero. With the arrival of the first (odd) count pulse at the input 10 of the counter, elements and triggers are switched in the following sequence. The output of the AND-NE element 5 enters the zero-logic state, which is fed to the input of the AND-HE elements 8, 4, 7 and the AND-HE elements 2 of odd triggers. At the outputs of the elements AND-NO 4, 7 and 8, as well as the elements AND-NOT 2 AND-2-ord and the previous even-numbered triggers, this does not change, and the remaining elements of AND-NOT 2 go to a single logical state. A single logical signal from the outputs of the AND-HE elements of 2 odd triggers, except for the first one, does not make any switchings, but from the output of the AND-HE element of the first 2 triggers, a single logical signal is fed to the inputs of the AND-HE elements of the first and second triggers. At the output of the NAND-3 element of the first trigger, a zero logic signal appears and the zero logic signal may not go to 0. The last two signals end the switching of the counter. In general, the counter is set to the state of issuing a number equal to one, which is assigned to the code, and the counter is in the initial state for reading the second (even) counting pulse. Further work of the counter occurs in the same way. The invention has a ring counter containing AND triggers, each of which contains the first and second elements AND-NOT whose inputs are connected to the outputs of the second and first elements of the same trigger, respectively, the unit and zero outputs of which are connected to the outputs of the first and second elements of this trigger, a- also the first, second, third and fourth all-consuming elements AND-NOT unit; the course of the flip-flop from the flip-flop is connected to the input of the second element of the next flip-flop, zero output