RU35163U1 - Minimax selector - Google Patents

Description

2003124223

ISHRNPMZHR MPK00607 / 25

MINIMAX SELECTOR

The utility model relates to automation and analog computing and can be used to build functional units of analog computers, automatic regulation and control tools, analog processors, etc.

Minimax selectors are known (see, for example, A.S. USSR 1325524, class G06G7 / 25, 1987), which select the maximum and minimum of the two input analog signals at the first and second outputs, respectively.

The reason that impedes the achievement of the technical result indicated below when using known minimax selectors is limited functionality, due to the fact that changing the assignment of the outputs to the opposite requires a change in the selector circuit.

The closest device of the same purpose to the claimed utility model in terms of features is the minimax selector (A.S. USSR 1322325, class G06G7 / 25, 1987) adopted by the prototype, which contains a comparator, two closing and two disconnecting keys, and at the first and second outputs, it selects the maximum and minimum of the two input analog signals, respectively.

The reason that impedes the achievement of the technical result indicated below when using the prototype is limited functionality due to the fact that changing the assignment of the outputs to the opposite requires a change in the selector circuit.

The technical result of the utility model is the expansion of functionality by providing a change in the assignment of outputs to the opposite without changing the selector circuit.

the non-inverting and inverting inputs of which are respectively the first and second information inputs of the minimax selector and are connected respectively to the combined input of the nerve opening, the input of the second closing and the combined input of the first closing, the input of the second disconnecting keys, the combined output of the first closing, the output of the first closing and the combined output of the second closing , the output of the second disconnect keys are respectively the first and second outputs of the minimax selector, especially The problem is that a Boolean “exclusive OR” is introduced into it, the first input of which is connected to the output of the comparator, the second input is the tuning input of the minimax selector, and the output is connected to the control input of the first, second closing and first, second disconnecting keys.

The drawing shows a diagram of the proposed minimax selector.

The minimax selector contains a comparator 1, the output of which is connected to the first input of the exclusive OR 2 boolean element, connected by the second input and output to the tuning input of the minimax selector and the control input of the first, second closing, first, second disconnecting keys 3i, 32, 4i, 42, respectively , the combined outputs of the keys 3, 4i and the combined outputs of the keys 32, 42 are respectively the first and second outputs of the minimax selector, the first and

the second information inputs of which are formed respectively by the combined non-inverting input of the comparator 1, the input keys. 4i: 5

32 and the combined inverting input of the comparator 1, the inputs of the keys X 42. The proposed minimax selector is operated as follows. The control signal / e {0, l} and analog signals (voltages) x, X2 are supplied to its tuning and first, second information inputs. If / 1 (/ О) and l;} l: 2 or x X2, then the keys 4i, 42 respectively closed (open) or open

  f

(closed), and keys 32 32 are respectively open (closed) or closed (open). Thus, the proposed minimax selector at / 1 and at / O will play accordingly operations

Zi max (l; 1, X2) 1 Zj mn (l: 1, l: 2) 1

(G /

x, JC2 JJ 2 max (L; 1, X2)

The above information allows us to conclude that the proposed minimax selector has a wider functionality compared to the prototype, as it provides a change in the assignment of outputs to the opposite without changing their circuit.

Claims (1)

A minimax selector containing a comparator whose non-inverting and inverting inputs are respectively the first and second information inputs of the minimax selector and are connected respectively to the combined input of the first NC, input of the second NC and combined the input of the first NC, the input of the second NC, the combined output of the first NC, the output of the first disconnecting and combined output of the second closing, the output of the second opening keys are respectively the first and second outputs of the minimax selector, characterized in that an EXCLUSIVE OR Boolean element is introduced into it, the first input of which is connected to the output of the comparator, the second input is the tuning input of the minimax selector, and the output is connected to the control input of the first, second closing and first, second disconnecting keys .