SU1385286A2 - Matrix commutating device - Google Patents

Abstract

The invention can be used in automation systems, communications systems, and computing. The matrix switching device contains sixteen switches 1, each of which consists of a storage element (DL) 2 and a control key 3, 33 4, controlled output drivers 5, control buses 6, 7, 8 for selecting a column, row, switch, respectively, shapers 9,

Description

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logical elements OR 11, logical elements И 13, 16, input bus (Ш) 10 p. feed, direct Ш 12 initial set-up, inverse Ш 14 initial set, output Ш 15 corresponding column, МДП-transistors 24, 25 , total W 26 and W 27 food respectively. Due to the electrical connections between the functions

The invention relates to electronic switching technology and can be used in automation, communication, control and computer systems.

The aim of the invention is to expand the functionality of the device while increasing its performance by resetting all connections of the device during one cycle by controlling the row and column selection buses from the additionally entered two-input AND, OR elements by the initial setup signals, thereby storing all the switches are simultaneously recorded identical. And the initial information corresponding to the open state of the switches keys.

The drawing shows an example of the implementation of the matrix switching device 4x4 switches in the form of a functional diagram.

The device contains sixteen switches 1, each of which consists of a storage element 2 and a controllable key 3, four additional storage element 4, four controlled output drivers 5. The D-trigger is used as the storage element key is a MOS transistor. The control inputs of the storage elements 2 and 4 are connected to the column selection control buses 6, and the information inputs of the same storage elements are connected respectively to the row selection control buses 7 and the switch select control bus 8.

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With the new elements, a new device control function is implemented — the initial installation of all switches to the initial state in one cycle. If it is necessary to repeatedly disconnect the switching channels, an increase in the capacity of the device and its performance is achieved. 1 il.

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The outputs of the input drivers 9 are connected to the input bus 10 of the line, which is connected to the inputs of the controlled keys 3 of the same line.

The column selection control buses 6 are connected to the outputs of the OR 11 elements, the first inputs of which are combined and connected to the direct bus 12 of the initial installation. The control bus 7 row selectors are connected to the outputs of the And 13 elements, the first inputs of which are combined and connected to the inverse bus 14 of the initial installation. The outputs of the keys 3 of the switches 1 are connected to the output bus 15 of the corresponding column, which is connected to the input of the controlled output form 5.

The control bus 8 of the switch selection is connected to the output of an AND element 16, the first input of which is connected to the inverse bus 14 of the initial installation, and the second to the input of the switch 17 selection 17.

The inputs of the input drivers 9 are the device inputs 18, and the outputs of the controlled output drivers 5 are the device outputs 19.

The outputs of the additional storage elements 4 are the control inputs 20 and 21 of the controlled output drivers 5.

The second inputs of the elements OR 11 are connected to the inputs 22 of the column selection, and the second inputs of the elements AND 13 to the inputs 23 of the row selection.

The controlled output driver 5 is made on MOSFETs according to the element scheme with three states

 And therefore it can- find.c: you nk.i-yuchennogo only in that case, the column in; 1 bar, in accordance with the general {optional} element 11 for the element 4 for 1; 1.

Otherwise, the MOS transistors 24 and 25 of the controlled, output driver 5 are closed, and the corresponding device output 19 is isolated from the common bus 26 and the device power spikes 27.

The device operates as follows.

When signal O is applied to the forward spike 12 of the initial installation, and signal 1 is sent to the inverse bus 14 of the initial installation, the logic elements 11, 13 and 16 pass control signals for setting the switches 1 from the columns and rows selectors 22 and 23 to record information in storage elements 2 and 4. In this case, the switches 1 are adjusted sequentially in columns.

After setting up the device, the signal from the corresponding input 18 of the device through the input footer 9, the open SW 10 of switch 1 is fed to the output bus 15 of the column and to the input of the controlled output driver 5 and further to the output 19 of the device.

When opposite signals are applied to buses 12 and 14 of the initial installation, O appears on the control buses 7 and 8, and 6 columns appear on the control buses 1. All switches G are selected and all memory elements 2 and 4 appear Signal O is recorded. All controllable keys 3 are in the open state, and controllable output drivers 5 are supported

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They are found in T1) in a nexus-ohmic state. All inputs 18 and outputs 19 of the device are open.

Thus, in the arrangement, it is initial, the installation of all switches in the initial state 1e per cycle. If a multiple disconnection of the switching channels is necessary, an increase in the capacity of the device is achieved, i.e. its performance.

Formula of invention

Matrix switching device according to auth. No. 1075409, characterized in that, in order to expand the functionality of the device while increasing its performance, N logical elements OR and (M + 1) logical elements AND are entered into the device, OR outputs of the logical elements are connected to the corresponding control bus of the column selection , the first inputs of the logic elements OR are combined and connected to the direct bus of the initial installation, and the second inputs are connected to the inputs of the choice of the column, the outputs of the logic elements AND are connected to the corresponding control bus in Selecting a line, and the output (M + 1) of the AND logical element is connected to the switch selection control bus, the first inputs of all AND logic elements are combined and connected to the inverse bus of the initial installation, and the second input of the M logic elements AND are connected to the row selection inputs , and the second input of the (M + 1) -th logical element I is connected to the input of switch selection.

Claims (1)

Matrix switching device for auto No. 1075409, characterized in that, in order to expand the functionality of the device while increasing its productivity, N logical elements OR and (M + 1) logical elements AND are introduced into the device, - the outputs of the logical elements OR are connected to the corresponding control buses for selecting the column, the first the inputs of OR gates are combined and connected to the direct bus of the initial installation, and the second inputs are connected to the inputs of the column selection, the outputs of M logic gates AND are connected to the corresponding control bus selection rock, and the output of the (M + 1) -th logical element AND is connected to the control bus for selecting the switch, the first inputs of all logical elements AND are combined and connected to the inverse bus of the initial installation, and the second inputs of the logical elements AND are connected to the inputs of the row selection, and the second input of the (M + 1) -th logical element AND is connected to the input of the switch selection.