SU447839A1 - Switching cell - Google Patents

Description

The invention relates to computing and can be used to build temporary switching systems for digital integrating structures. Known switching cell auth.St. HZZZE contains a trigger for storing increments, registers, comparison circuits, a delay line, and a group of (tn + 1) keys. It reduces the switching time and thereby increases the speed of the digital integrating structure. In a known device, the decrease in switching time is completely dependent on the transmitted increments and is different at each decision step in the digital integration structure. The purpose of the invention is to increase the speed of the digital integrating structure at each step of the solution. This is achieved by entering the registers, comparison circuits, 2k inequality circuits and 2k keys into the switching cell, the parallel outputs of the registers are connected to the inputs of the comparison circuits, the other inputs of which are connected to the inputs of receiving the binary code of the cell address, and the outputs with information cell outputs via keys, the control inputs of which are connected to the outputs of the unequal schemes, the inputs of each of which are connected to the register bit output and buses for transmitting the increment values, as well as the OR, AND and second trigger circuits p, the single input of which is connected to the second information input of the cell, the zero input to the output of the delay line, the zero output to the input of the AND circuit, and the single output to the input of the OR circuit and the control input of the key whose output is Date: 15/08 / 2001

Number of pages: 4

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About P & C ANI E

INVENTIONS

To the copyright certificate

(61) Dependent on the author. certificates (22) For a statement. 06.73 (21) 1930336 / 26-9 with the accession of the application -

(32) Priority -

Published25.10.74Na 39 Bulletin

(45); Date published description 15.12,7 (72) The authors of the invention G.I. Dvidov, A.M. (71) Claimant

(11) 5 447840

(51) M Cl.

H 03 K 17/56

(53) UDC 681.3.055 (088.8 Nikolaev and O. Sharomet

(54) SWITCH

The invention relates to a converter of cedar voltage with a consistent output and can be used in automation and computing devices.

The code-voltage transducer mark switches are known, the reference voltage source is galvanically not connected to zeilius in COT01ShH, and one of the busses of the reference voltage source is connected to ground depending on the sign of the sign bit code when using a separate key element of the sign discharge .

The key element in this case is performed on two inversely connected transistors of the same type of conductivity, the collectors of which are connected to the buses of the voltage source, the emitters of the transistors are connected together and connected to a co-lutized circuit. A control signal is applied to the base transistors.

If the galvanic control circuit of the key element OU is used when switching on the tire of one of the tires of the reference voltage source that is not connected to 5 earth, a galvanic isolation of the control circuit of the key element from the input register is necessary. There are known cases of uncoupling using an opto-electronic key.

The low speed of the token switches is due to the fact that they use trigger control schemes to control the key 5 element. The transistors of such circuits can be in two states: either deep saturation or in a closed state. 0 The transition of the transistor from one state to another in this case occurs slowly.

The purpose of the invention is to increase the speed of the switch. This is achieved by the fact that {The proposed switch is equipped with a current switch on transistors, the input of which is connected to the output of an optical photo switch. Two para-phase outputs are connected to the bases of the transistors of the key element, the conductivity of which is opposite to the conductivity of the current switch transistors.

The invention is illustrated in the drawing.

The switch of the sign contains the source 1 of the reference voltage, two buses of which are connected to the collectors of transistors 2 and 3 of the key element 4, the emitters of transistors 2 and 3 are connected together with the case (zero output of the code-voltage converter).

Two paraphase outputs 5 and 6 of the current switch 7 are connected respectively to the bases of the transistors 2 and 3 of the key element 4. The input 8 of the current switch 7 is connected to a voltage source E, E E |, E, and the other

input 9 - with the output of the optoelectronic key 10, the input of which is connected to the register of 11 characters. Through resistors 12 and 13 to the bases of transistors 2 and 3 of the key element 4, a source of blocking voltage -f-Ej is connected. A change in the logic level at the output of the register I sign and the optoelectronic switch 10 associated with it causes the current to be switched from one output

current shifter to another one and, as a result, switching of transistors of the key element 4. Due to the use of a current switch as a control circuit of a key element; ohm sign switch significantly improves the speed of switch sign due to the fact that

The transistors of the control circuit do not enter saturation mode. In addition, the current switch allows you to simplify the control circuit and increase the reliability of the switch

sign.

SUBJECT OF THE INVENTION A switch comprising a key element made on

two transistors, the collectors of which are connected to the busses of the voltage source, and the emitters - with a zero output of the sign register switch, the output of which is connected to the input of an optoelectronic switch, characterized in that, in order to increase speed, a current switch is inserted into it

on transistors, the conductivity of which is opposite to the conductivity of the transistors of the key element, with the input of the current switch connected to the output of the optoelectronic switch, and its two paraphase outputs, respectively, with the bases of the transistors of the key element.

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