SU1448391A1 - Toggle flip-flop - Google Patents

Abstract

The invention relates to computing and automation and can be used in various optoelectronic circuits. The purpose of the invention is to increase noise immunity and expand the scope. The purpose of the invention is achieved through the use of optoelectronic elements and the introduction of new functional connections. 2 Il. F (L

Description

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The invention relates to computing and automation and can be used in various optoelectronic circuits.

The purpose of the invention is to improve noise immunity and expand the scope of application through the use of optoelectronic elements.

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9, the second terminals of which are connected to the common bus, the second optoelectronic gate.7 is optically coupled via an n-TbDii opto-electronic gate 12.1 with photoresistors 11.1 and 11.2, and the first optoelectronic gate 6 through the sixth optoelectronic gate 13 and the fifth optoelectronic gate 12.2

Figure 1 shows the principal Q, respectively, optically coupled to

by photoresistors 11.1 and 11.2, the output of the third opto-electronic shutter 8 is the inverse output of the trigger and the output of the fourth optoelectronic

on the scheme of the counting trigger; in fig. 2 - diagram of the trigger. The trigger contains a power bus 1, a common bus 2, the first and second light photoresistors 11.1 and 11.2, the output of the third opto-electronic shutter 8 is the inverse output of the trigger, and the output of the fourth optoelectronic

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emitters: 3 and 4, electric jog shutter 9 - direct trigger output, input 5, optoelectronic input switch on the first and second optoelectronic gates 6 and 7, output optoelectronic switch on the third and fourth optoelectronic gates 8 and 9, first and the second elements AND-OR, which consist of resistor 10.1 (10.2), photoresistor P. (11.2) of the fifth optoelectronic gate 12.1 (12.2), optical inverter 13, electrical output 14, optical direct output 15, optical inverse output 16, and each of the light emitters has The electrical outputs, one of which is connected to the power bus, the other to the common bus, the second light emitter 4 is optically coupled to the third B and fourth 9 optocouplers, the second output of the first optoelectronic shutter 6 is connected to the common bus, its first output pin with electric counting input 5 and with the first output of the second optoelectronic gate 7, the second output of which together with the second outputs of resistors 10, J and 10.2 and the second output of the third optoelectronic gate 8 and the first view of the sixth optoelectronic char The aperture 13 is connected to the power supply bus 1, the first output of the resistor 10.1 is connected to the first terminals of the photoresistor 11.1 and the fifth optoelectronic gate 12.1, the second terminals of which are connected to the common bus 2, the first terminals of the resistor 10.2, the third optoelectronic gate 8 and the second output the sixth optoelectronic shutter 13- is interconnected and connected to the electrical output of the trigger 4 and to the first terminals of the photoresistor P. 2, the fifth optoelectronic shutter 12.2, the fourth optoelectronic shutter

The trigger works as follows.

In the initial state, there are no pulses at the electrical input 5, light emitters constantly emit light signals, the optoelectric gates 6 and 7 are closed, the large dark resistance of the photoresistor 11.1 keeps the optoelectronic shutter 12.1 closed. Suppose, in the initial state, the potential of the electrical output 14 of the circuit corresponds to a low level (O), the resistance of the photoresistor 11.2 is low and, therefore, the optoelectronic gates 9 and 12.2 are open, and the optoelectronic gates 8 and 13 are closed. When a low level (O) is applied to the electrical input 5, the first optoelectronic shutter 6 opens, the light from the first light emitter 3 is fed to the input optical aperture of the optoelectronic shutter 6, the light removed from its output aperture is optically coupled to the input optical aperture open fifth optoelectronic shutter 12.2, the optical signal from its output aperture supports a low resistance of the photoresistor 11.2, the light pulse from the second light emitter 4 comes to the optoelectronic shutter 9, as a result An optical signal appears at the direct optical output 15 of the circuit. On the leading edge of the first counting pulse arriving at the electrical input 5, the second optoelectronic shutter 7 opens and passes the optical signal from the first light emitter 3 to the input aperture of the optoelectronic shutter 12.1, but, since the large dark resistance of the photoresistor 11.1 holds optoelectronic shutter 12.1 v

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respectively, optically coupled to

the photoresistors 11.1 and 11.2, the output of the third opto-electronic shutter 8 is the inverse output of the trigger, and the output of the fourth optoelectronic

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g shutter 9 - direct trigger output, o

The trigger works as follows.

In the initial state, there are no pulses at the electrical input 5, light emitters constantly emit light signals, optoelectronic gates 6 and 7 are closed, the large dark resistance of the photoresistor 11.1 keeps the optoelectronic shutter 12.1 closed. Suppose, in the initial state, the potential of the electrical output 14 of the circuit corresponds to a low level (O), the resistance of the photoresistor 11.2 is low and, therefore, the optoelectronic gates 9 and 12.2 from. optoelectronic valves 8 and 13 are closed. When a low level (O) is applied to the electrical input 5, the first optoelectronic shutter 6 opens, the light from the first light emitter 3 is fed to the input optical aperture of the optoelectronic shutter 6, the light removed from its output aperture is optically coupled to the input optical aperture open fifth optoelectronic shutter 12.2, the optical signal from its output aperture supports a low resistance of the photoresistor 11.2, the light pulse from the second light emitter 4 comes to the optoelectronic shutter 9, as a result An optical signal appears at the direct optical output 15 of the circuit. On the leading edge of the first counting pulse arriving at the electrical input 5, the second optoelectronic shutter 7 opens and passes the optical signal from the first light emitter 3 to the input aperture of the optoelectronic shutter 12.1, but, since the large dark resistance of the photoresistor 11.1 holds optoelectronic shutter 12.1 v

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the closed state, the light signal does not pass through it, obviously, in the absence of light on the photoresistor 11.2 its resistance increases 5 which causes the fifth optoelectronic shutter 12.2, the fourth optoelectronic shutter 9 to close, and the third optoelectronic shutter 8 opens, according to appearance at its optical output

output 16 circuit.

The leading edge of the first counting pulse contributes to opening the first optoelectronic shutter 6, passing an optical signal through it to the input aperture of the sixth optoelectronic shutter 13, since the fifth optoelectronic shutter 12.2 is closed due to the large dark resistance of the photoresistor 11.2, the light flux from the output aperture of the optoelectronic shutter 13 illuminate the photoresistor 11.1, whose resistance decreases to light, which contributes to the opening of the fifth optoelectronic shutter 12.1. The optical signal from the second th ents svetoizlu- 4 enters the entrance aperture of the third optoelectronic shutter 8, and its optical output. In addition to the inverse optical output of the circuit 16, a signal appears

On the leading edge of the second counting pulse, the light flux from the first light emitter 3 through the open second optoelectronic shutter 7 enters the input aperture of the open fifth optoelectronic shutter 12.1, the optical signal from its output aperture maintains the light resistance of the photoresistor 11.1 and irradiates the photoresistor 11.2, reducing it resistance to light, which, in turn, opens the fifth 12.2 and fourth 9 optoelectronic gates and covers the sixth 13 and third 8 optoelectronic gates. The light flux from the second light emitter 4 is fed to the optical input of the fourth: optoelectronic shutter 9, and at its output, which is the optical direct output of the I5 circuit, an optical signal is taken.

The proposed device has the ability to switch on the leading edge of the counting pulse.

formula of invention

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A counting trigger containing a power bus, a common bus, the first and second clock buses, the first and second AND-OR elements, the output of each of which is connected to the first input of its own first AND element, the output of the first AND-OR element is connected to the inverse input of the second AND element the second element AND-OR, whose output through the inverter is connected to the inverse input of the second element AND the first element AND-OR, the first and second clock buses are respectively connected to the second inputs of the AND-OR elements, characterized in that, in order to increase omehohardiness and expansion of the field of application, the first and second light emitters are inserted into it, each of which is connected between the bus

5 power supply and common bus, input and output optoelectronic switches, respectively, on the first, second, third and fourth optoelectronic gates, the first terminals of which, respectively, are pairwise connected and connected respectively to the electrical input and output of the trigger, the second leads are connected respectively to the common power supply bus, optical the outputs of the input optoelectronic switch are the first and second clock buses, the outputs of the output optoelectronic switch are direct and inverse optical Exit trigger each AND-Hilti formed on the resistor, and a fifth photoresisto optoelectronic gate SG, first terminals of which are combined, the second terminal of the resistor

g is connected to the power bus, the second pins of the photoresistor and the fifth optoelectronic gate are connected to the common bus, the first optical input of the photoresistor is an inverse output of the AND-OR element, its second input is connected to the output of the fifth optoelectronic gate, the optical input of which is connected to corresponding to the tact bus, the inverter is made in the form of an optical inverter on the sixth optoelectronic gate, the first output of which is connected to the power supply bus, the second output - to the electrical output, which is connected to the first 5

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the pin of the photoresistor of the second optoelectronic shutter of the AND-OR sub-element, the optical input of the neck-keys to the second clock bus ;.

Claims (1)

Claim A counting trigger containing a power bus, a common bus, first and second clock buses, the first and second AND-OR elements, the output of each of which is connected to the first input of its own first AND element, the output of the first AND-OR element is connected to the inverse input of the second AND element the second AND-OR element, the output of which through the inverter is connected to the inverse input of the second AND element of the first AND-OR element, the first and second clock buses respectively applied to the input aperture of the sixth optoelectronic shutter 13, since the fifth optoelectronic shutter 1 2.2 is closed due to the large dark resistance of the resistor 11.2, the light flux from the output aperture of the optoelectronic shutter 13 illuminates the photoresistor 11.1, the resistance of which decreases to light, which helps to open the fifth optoelectronic shutter 12.1, The optical signal from the second light emitter 4 is fed to the input aperture of the third optoelectronic shutter 8, and a signal appears at its optical output, which is the inverse optical output of circuit 16. On the leading edge of the second counting pulse, the light flux from the first light emitter 3 through the open second optoelectronic shutter 7 is fed to the input aperture of the open fifth optoelectronic shutter 12.1, the optical signal from its output aperture maintains the light resistance of the photoresistor 11.1 and irradiates the photoresistor 11.2, helping to reduce its resistance to light, which, in turn, opens the fifth 12.2 and fourth 9 optoelectronic shutters and closes the sixth 13 and third 8 optoelectronic shutters. The luminous flux from the second light emitter 4 is fed to the optical input of the fourth optoelectronic shutter 9, and the optical signal is removed at its output, which is the optical direct output of circuit I5. The proposed device has the ability to switch on the leading edge of the counting pulse. connected to the second inputs of the AND elements of the AND-OR elements, I distinguish 2Q by the fact that, in order to increase noise immunity and expand the scope, the first and second light emitters are introduced into it, each of which is connected between the power bus 25 and the common bus, optoelectronic input and output switches, respectively, first, second, third and fourth ^g optoelectronic gates, first terminals of which are responsible so3Q mutually coupled and connected respectively to the electric input and output of the flip-flop, the second output! - connected respectively to a common power bus, the optical outputs of the input optoelectronic switch are the first and second clock buses, the outputs of the output optoelectronic switch are direct and inverse optical ₄₀ outputs of the trigger, each of the AND-OR elements is made on a resistor, a photoresistor, and a fifth optoelectronic shutter, the first the pins of which are combined, the second pin of the 4g resistor is connected to the power bus, the second pins of the photoresistor and the fifth optoelectronic shutter are connected to the common bus, the first opt The input of the photoresistor is the inverse input of the θ-OR element, its second input is connected to the output of the fifth optoelectronic shutter, the optical input of which is connected to the corresponding clock bus, the inverter is made 55 in the form of an optical inverter with a sixth optoelectronic shutter, the first output of which is connected to the power bus, the second output is connected to the electrical output, which is connected to the per5 1448391 6th output of the second resistor of the second optoelectronic shutter of the AND-OR sub-element, the optical input of the neck-switches to the second clock bus.