SU947969A1

SU947969A1 - Sensory change-over switch

Info

Publication number: SU947969A1
Application number: SU802987445A
Authority: SU
Inventors: Юрий Олегович Мартемьянов; Сергей Афанасьевич Наронов; Николай Николаевич Шумский
Original assignee: Предприятие П/Я Р-6693
Priority date: 1980-10-01
Filing date: 1980-10-01
Publication date: 1982-07-30

Description

Изобретение относитс к радиотехнике , в частности к элементам коммутации с сенсорным управлением, и может быть использовано дл коммутации электрических цепей в бытовой радиоаппаратуре, системах анто .матического управлени , контрол и т.п. The invention relates to radio engineering, in particular, to switching elements with sensory control, and can be used for switching electrical circuits in consumer radio equipment, anti-control systems, monitoring, etc.

Известен сенсорный переключатель,« содержащий сенсорную площадку,- управл ющий элемент, первый и второй триггеры 11.A known touch switch, "comprising a touch pad, is a control element, the first and second triggers 11.

Недостатком данного переключател вл етс низка помехозащищенность от наводок переменного тока.The disadvantage of this switch is low immunity against AC interference.

Известен также сенсорный переключатель , содержащий задаюшлй генератор , выход которого через резистор подключен к сенсорной площадке и первому входу управл ющего элемента , первый и второй триггеры 2.Also known is a touch switch containing a generator, the output of which through a resistor is connected to the touch pad and the first input of the control element, the first and second triggers 2.

Недостатками известного- сенсорного переключател вл ютс ограниченные функциональные возможности в виду необходимости использовани двух переключателей дл коммутации тока в одной нагрузке. The disadvantages of the known-touch switch are the limited functionality due to the need to use two switches to switch the current in one load.

Цель изобретени - расширение функциональных возможностей.The purpose of the invention is to expand the functionality.

Поставленна цель достигаетс тем, что в сенсорный переключатель, содержащий задающей генератор, выход которого через резистор подключен к сенсорной площадке и первому входу управл кадего элемента, первый и второй триггеры, введен элемент задержки , а управл ющий элемент вьгполнен в виде логической схемы ИСКЛЙЧАГШ1ЕЕ The goal is achieved by the fact that a delay element is inserted into the touch switch containing a master oscillator, the output of which through a resistor is connected to the touch pad and the first input of the control element, the first and second triggers, and the control element is executed in the form of a logic circuit EXCEPT160

10 ИЛИ, причем второй вход управл ющего элемента подключен ко входу задающего генератора и через элемент задержки - к С-входу первого триггера , О-вход которого подключен к 10 OR, the second input of the control element is connected to the input of the master oscillator and through the delay element to the C input of the first trigger, the O input of which is connected to

15 выходу управл ющего элемента, а неинвертирующий выход - к С-входу второго триггера, инвертирующий выход которого св зан с его 0-входом , а неинвертируюшлй выход - с 15 to the output of the control element, and the non-inverting output to the C input of the second trigger, the inverting output of which is associated with its 0 input, and the non-inverting output with

20 нагрузкой.20 load.

На фиг.1 показана функциональна схема предлагаемого сенсорного переключател ; на фиг.2 - эпюры напр жений в характерных точках схемы.Figure 1 shows the functional diagram of the proposed touch switch; Fig. 2 shows stress plots at characteristic points of the circuit.

2525

Сенсорный переключатель содержит задающий генератор 1, выход которого через резистор 2 подключен к сенсорной площадке 3 и ко входу 4 управл ющего элемента 5 ИСКЛГОЧА101ЦЕЕ The touch switch contains a master oscillator 1, the output of which through a resistor 2 is connected to the touch pad 3 and to the input 4 of the control element 5 EXCEPT101CEE

Claims

30 OR, the second input 6 of which is connected to the output of the generator 1 directly. The output of the element EXCLUSIVE OR is connected to the D input of the first three hera 7, the C input of which is connected to the output of the generator via the delay element 8. The non-inverting output of three hera 7 is connected to the C-input of the second trigger 9, the inverting output of the three-ger 9 is connected with its D-input, and the non-inverted input to the load 10 The switch works in a similar way. In the initial state, when the operator’s palate does not touch the touch pad 3, inputs 4 and 6 of element 5 are EXCLUSIVE OR 5, oscillations, synchronic and strictly synchronous in Figures 2a and 26 are up to t, in this case the element EXCLUSIVE OR is permanent is in the state lo, 0, on the informational D-input of the trigger 7 (figv), respectively, there will be a log. Oh, and the C-input of the trigger 1 receives constant pulses from the master oscillator 1 through the delay element 8 (FIG.2J7). As a result, at the output of the trigger 7 and at the C input of the trigger 9, there will respectively be a log. Oh and the load 10 is disabled (Fig.2E). When the operator touches the pad at time t (Fig. 2d) of the touch pad 3, the input 4 of the EXCLUSIVE OR 5 element turns on the integrating circuit consisting of the resistor 2 and the operator's own capacitance relative to the earth, while the positive impulse arrives at input 4 not simultaneously with a positive pulse arriving at input b, but later at time t 3RC where and is the nominal value of the resistor 2, C is the carrier's own capacity. As a result, from the output of the EXCLUSIVE OR element, positive impulses with a duration of tj, T are received at the input input of the trigger (Fig. 2c). The 8-delay element is selected in such a way that when the signal at the C-input of trigger 7 passes from log.0. In the log.Ch state, a log level is present at the D input of the trigger 7, trigger 7 changes its state and the C input of the trigger 9 receives a log and the load 10 is connected to the circuit {fig. 2e) At time t, j, when the operator no longer touches the sensor pad, the circuit returns to its original state, but the load 10 remains connected to the circuit. To disconnect the load at time t, onepaTop touches the touch pad again with a finger, as a result, a log is again displayed at the D input of the trigger 7. at the moment of the drop on its C input from the 0 state to the log state, therefore, the triggers 7 and 9 change their state to the opposite, and the load 0 is disconnected from the power source. Thus, the use of the invention allows switching the load independently of other switched circuits by alternately touching one touch pad. Formula Invention A touch switch comprising a master oscillator, the output of which through a resistor is connected to the touch pad and the first input of the control element, is the first and second triggers, characterized in that, in order to extend the functionality, a delay element is introduced into it, and the control element made in the form of a logic circuit EXCLUSIVE OR, the second input of the control element is connected to the input of the master oscillator and through the delay element to the C input of the first trigger, the D input of which is connected to the output of the control element, and the noninverting output to the C-input of the second flip-flop, the inverting output of which is coupled to its D-input and non-inverting output - with the load. Sources of information taken into account in the examination 1. For Britain, UK, No. 540034, cl. H 03 K 17/00, 1977. 2, USSR Copyright Certificate 665402, cl. H 03 K 17/945, 979.

Г71А Л А. LML A