SU476668A1 - Multistable trigger - Google Patents

Description

one

The invention relates to a pulse technique.

Known multistable trigger containing potential logical elements.

The purpose of the invention is to simplify the circuit - it is achieved by the fact that in the proposed trigger potential logic elements of the type ZI-2 are installed OR-NOT: the output of each element is connected to the first input of the left and right schemes "And neighboring elements, the second and third inputs of the schemes" elements are combined and connected respectively to the even and odd input terminals; and each odd input of the n-th element is connected to the even input (/ g + 2) of the th element and to the terminal of the installation input of the device.

The drawing shows the trigger scheme.

The output of each element "AND-OR-NOT 1-5 is connected to the first input of the left and right circuits" AND adjacent elements; the combined second and third inputs of the circuits “And these elements form even and odd inputs. Each odd input / g-element is connected to an even input (n -} - 2) -th element, forming the installation inputs of the trigger.

The trigger works as follows.

In the initial state at the inputs of Set. 1 - Const. 5 - high voltage levels, i.e., no setting signals, n the trigger is in one of the five states.

Assume that the trigger is in the first state (circuit code 0100, i.e.

).

Set the trigger, for example, in the second state, for which the input of Set. 2 needed

give a signal with the level of "O. In this case

both schemes “And elements 2 and 4 are closed, i.e.

high levels are formed at their outputs.

The latter, entering the schemes “And neighboring elements, form levels at their outputs

"Oh, since the schemes" and the elements

3 and 5 and the right diagrams of "And the elements 1 and 3.

Levels "About from the outputs of these elements,

access to both schemes “And elements 2 and 4, keep high levels at their outputs

after finished installation, i.e.

in the trigger is fixed code 01010. The remaining states of the circuit are as follows;

01001 (second) 10010 (fourth), 00101 (fifth).

Subject invention

A multistable trigger containing potential logic elements, characterized in that, in order to simplify it, potential ZI-2 TI-2 logic elements are installed OR OR NOT, and the output of each element is connected to the first input of the left and right "And neighboring elemeptov, the second n m) Eggy1 inputs of the circuits “And these elements are combined and connected respectively to even II odd input terminals, and each odd input of the nth element is connected to the even input of the (-4-2) -th element and to the installation input terminal devices.