SU1385289A1 - Sensor switch - Google Patents

Abstract

The invention relates to a pulse technique and can be used in input and output devices. The invention extends the functionality of the touch switch by organizing an additional non-latching mode of operation with the input of the control unit 3. The device contains m touch pads 1, m of amplifiers 2, an element OR 4, a memory register 5, the first 6 and second 7 multivibrators, an AND 8 element, a bus 9 for controlling the function of the device and an element NOT 10. The device assembled according to the proposed scheme performs additional function, similar to the switch without fixing. 1 il.

Description

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The invention relates to a pulse technique and can be used in input and output devices.

The purpose of the invention is to expand the functionality by organizing an additional mode of operation without fixing by introducing into it a control unit.

The drawing shows a diagram of a touch switch.

The device circuit contains m sensor pads 1, m of amplifiers 2, control unit 3, element OR 4, memory register 5, first 6 and second one-vibrators, element 8, device function control bus 9, element 10.

The touch pads 1 are connected to the inputs of the respective amplifiers 2 whose inputs are connected to the corresponding information inputs of the memory register 5 and the corresponding

the inputs of the element OR 4, the output of which is 0

P

6. The parameters of nepecjro odvodibrator 6 are such that the leading edge of the pulse it forms falls approximately in the middle of the second of a series of pulses with a frequency of 50 Hz.

On this front, the second one-oscillator 7 generates a relatively narrow (“1 ms” pulse) that cannot pass through the AND 8 element, covered by the second pulse from a 50 Hz pulse train, to the reset input R of the 5th memory register. The third pulse of the series prohibits the passage of a pulse of the second one-shot 7, formed from the second pulse of the series, etc. This process continues until the operator stops touching the pad.

When the touch pad is released, the last of a series of 50 Hz pulses at the output of element 4 OR forms a pulse delayed by the first 6 and second 7 single vibrators

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It is connected to the control input of the entry 25 of the input element AND 8 and, since the sectional information of the memory register 5, the input of the first one-vibrator 6, input, is the home of the element NOT 10 whose output is connected to the first input of the element IZ,

The input of the first single vibrator 6 connects it to the input of the second single vibrator 7, the output of which is connected to the second input of the AND 8 element, the third input of which is connected to the device function control bus 9, and the output to the reset input R of the memory register 5.

When the bus 9 is given a signal to prohibit the activation of the VO element, the device performs the functions of the prototype, i.e. dependent fixation. When the bus 9 is given a signal, allowing the era batting. element And 8, the device works as follows.

In the initial state, all the nodes of the device are in the static state of JANIN and there are no control signals on any of the inputs of the register 5 of the memory

When the operator touches any sensor pad 1, a series of pulses with a frequency of 50 Hz and a duty cycle of about 2 appears at the output of the corresponding; its amplifier 2 and the output of the OR 4 element.

The first of these pulses enters information (input control V) into memory register 5. This impulse, having passed 55 through the element NOT 10, prohibits the operation of the element I 8, the first one vibrator triggers the impulse.

there is no prohibitive pulse at the second input of the element And 8 this pulse passes through it to the reset input R of the register 5 of the memory and

zero state.

Thus, the device, according to this scheme, performs an additional function, similar to switching of fixation.

Claims (1)

Invention Formula A touch switch containing touch pads, amplifiers, a memory register, an OR element, the inputs of which are connected to the outputs of the corresponding amplifiers and the corresponding information inputs of the memory register 45 the inputs of the corresponding amplifiers, and the output of the OR element is connected to the input of controlling the recording of information into the memory register, which is different in that, in order to expand the functionality by organizing the operation of the switch without latching, a control unit consisting of the first and the second one-shot and the elements are NOT and AND, and the input of the element is NOT connected to the output of the element OR and the input of the first one-shot, the output of which through the second one-shot e inlet element and 8 and since dumps it in there is no prohibitive pulse at the second input of the And 8 element; this pulse passes through it to the reset input R of the 5 memory register and zero state. Thus, the device according to this scheme performs an additional function, similar to switching without latching. Invention Formula A touch switch containing touch pads, amplifiers, a memory register, an OR element, the inputs of which are connected to the outputs of the respective amplifiers and the corresponding information inputs of the memory register the inputs of the corresponding amplifiers, and the output of the OR element is connected to the input of the control for recording information into the memory register, which differs from. so that, in order to expand the functionality by organizing the non-latching switch operation mode, a control unit is inserted into it consisting of the first and second one-shot and NOT and AND elements, and the input of the element is NOT connected to the output of the OR element and the input of the first single-vibration , the output of which is through the second one-shot podklyu31385289. four The element input is connected to the input of the AND element, the third input of which is the memory register reset.