SU1279060A2 - Transducer of single pulses - Google Patents

Abstract

The invention can be used in input devices and console equipment. The purpose of the invention is improving the reliability of the device. The sensor contains an optocoupler 1, consisting of a photoresistor 2 and an incandescent lamp 3, control buttons 5, elements 6 and a limiting resistor 7, introducing inverter 9 and connecting it to the contacts of control buttons 5 and element 6 helps to achieve the goal. 1 il. . i (l nd n o o o)

Description

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1279060

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The invention relates to a technique, can be used in input devices and a console apparatus, and is an improvement on a device by the author. St. No. 645147.

The purpose of the invention is to increase the reliability of the single-pulse sensor.

The drawing schematic: and shows the proposed sensor.

The single pulse sensor contains an optocoupler 1, consisting of a photoresistor 2 and an incandescent lamp 3, the first pole 4 of the power supply, control buttons 5, the And 6 elements, the limiting resistor 7, the second pole of the power supply 8, the inverter 9, and the first outputs of the optocoupler and the photoresistor are connected to the first power pole, the second output of the optocoupler is connected to the normally open contacts of the control buttons, and the second output of the photoresistor is connected to the second inputs of the And elements and through the resistor to the common contacts of the control buttons and the second pole of the power supply The corresponding normal closed contacts of the control buttons are connected to the corresponding first inputs of the And elements, the inverter input is connected to the normally open contacts of the control buttons, and the output is connected to the third inputs of the I. elements

The device works as follows

When one of the control buttons 5 is triggered, the potential of the second pole 8 of the power source, i.e. a logical unit is present at the input, and through the normally open contact of the pressed control button 5 to the lamp 3. glowing of the optocoupler 1 and to the input of the inverter 9, the potential of the second pole 8 of the power supply is applied. As a result, the output of the inverter 9, i.e. on the third inputs of the elements And 6, there is a logic unit. The closure of the common and normally open contacts of the control button 5 occurs with

chatter

And 6, one, due to the inductance optocoupler, the nominal change of the filament NAC is the time of the first time to logically correspond to the potential for bouncing since 1 means no

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At the same time, I will not open and break the second as a result of the flow of the loop. Closing that line happens as it is at the moment, but at the same time, the managers of the second and the second.

Form

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which passes through 9 to the third inputs of the AND 6 elements, but does not pass to their output due to the inertia of the operation of the optocoupler 1. The luminous flux of the glow lamp 3 changes from zero to the nominal value, following the change in the thermal resistance of the filament of the glow lamp 3. During the switching time of the optocoupler 1 and at the first inputs of the AND 6 elements, the logical unit turns on, and the output of the corresponding element And 6 shows the potential of the logical unit without chatter on its leading edge, since the switching time of the optocoupler 1 is much longer than the contact bounce time of the control buttons 5 .

I

When the control button 5 is released, its common and normally open contacts are opened. At the same time, the potential of the second pole 8 of the power supply is removed from the input of the inverter 9, as a result of which the potential of the logical unit is removed from the third inputs of the elements 6 and forms the rear edge of the generated pulse at the output of the corresponding element 6. The closure of the common and normally closed contacts of the control button 5 occurs with bounce, which does not affect the generated pulse, since its formation has already ended when the common and normally open contacts of the control button 5 are open, and the third inputs of the And 6 elements already have the potential of the second power supply poles 8.

Claims (1)

The invention relates to a pulse technique, can be used in input devices and console equipment, and is an improvement to the device according to the author. St. No. 645147. The purpose of the invention is to increase the reliability of the single-pulse sensor. The drawing schematic: and shows the proposed sensor. The single pulse sensor contains an optocoupler 1 consisting of a photoresistor 2 and an incandescent lamp 3, the first pole 4 of the power supply, control buttons 5, elements 6, the limiting resistor 7, the second pole 8 of the power supply, an inverter 9, and the first pins of the optocoupler and the photoresistor is connected to the first power pole, the second output of the optocoupler is connected to the normally open contacts of the control buttons, and the second output of the photoresistor is connected to the second inputs of the And elements and through the resistor to the common contacts of the control buttons and the second pole The corresponding normally closed contacts of the control buttons are connected to the corresponding first inputs of the And elements, the inverter input is connected to the normally open contacts of the control buttons, and the output is connected to the third inputs of the I. Elements. The device works as follows When one of the control buttons 5 is activated from the second input The corresponding element And 6 removes the potential of the voltage of the second pole 8 of the power source, i.e. a logical unit is present at the input, and through the normally open contact of the pressed control button 5 to the lamp 3. glowing of the optocoupler 1 and to the input of the inverter 9, the potential of the second pole 8 of the power supply is applied. As a result, the output of the inverter 9, i.e. on the third inputs of the elements And 6, there is a logic unit. The closure of the common and normally open contacts of the control button 5 occurs with 1 0 bounce, which passes through 9 to the third inputs of the inverter elements AND 6, but does not pass to their output due to the inertia of the optocoupler 1. The luminous flux of the glow lamp 3 varies from zero to nominal value, following the change in the thermal resistance of the filament of the filament lamp 3. During the switching time of the optocoupler 1 and at the first inputs of the AND 6 elements, the logical unit turns on, and the output of the corresponding element And 6 shows the potential of the logical unit without chatter along its leading edge, since the switching time of the optocoupler 1 is much longer . When the control button 5 is released, its common and normally open contacts are opened. At the same time, the potential of the second pole 8 of the power supply is removed from the input of the inverter 9, as a result of which the potential of the logical unit is removed from the third inputs of the elements 6 and forms the rear edge of the generated pulse at the output of the corresponding element 6. The closure of the common and normally closed contacts of the control button 5 occurs with bounce, which does not affect the generated pulse, since its formation has already ended when the common and normally open contacts of the control button 5 are open, and the third inputs of the And 6 elements already have the potential of the second power supply poles 8. Claims of the invention Single pulse sensor according to the author. St. No. 645147, characterized in that, in order to increase reliability in operation, an inverter is inserted in it, the input of which is connected to the normally open contacts of the control buttons, and the output is connected to the third inputs of the elements I.