SU974586A1 - Sensory change-over switch - Google Patents

Description

(54) TOUCH SWITCH

The invention of oxHocHtcH to the pulse technique and can be used as a channel changer in various devices.

It is known that the device contains sensory cells, triggers, an OR-NOT element, an output and control blocks riT.

The disadvantage of this device is low reliability.

Closest to the present invention, there is a sensor switch comprising a block of sensor sensors, the outputs of which are connected to AND and OR elements and triggers 2.

The disadvantage of the device is the possibility of switching two channels at the same time when switching from one channel to another, which reduces the reliability of its work.

The purpose of the invention is the reliability of work.

The goal is achieved by the fact that a touch switch containing an AND-sensor sensor unit, the outputs of which are connected to the corresponding inputs of the OR-NOT element and the first inputs of the corresponding AND-NOT elements, and

R.9 triggers, the outputs of which are connected to output buses, and 6 inputs are connected to the outputs of the corresponding AND-NOT elements, pulse shapers are entered, and the output of the element OR, d NOT through the first pulse shaper connected to the R-inputs of the R5 triggers and the input of the second driver, the output of which is connected to the second inputs of the AND-NOT elements.

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The drawing shows the functional scheme of the device.

The device contains a block of 1 and-sensor sensors, triggers 2, the element OR-NOT 3, shapers 4 and 5 impulses 20 ows, elements AND-NOT 6 and output 7.

Claims (2)

The operation of the touch switch is as follows. 39745 In the initial state, the outputs of the block 1 of the sensor sensors are affected by logical signals, logical I, S signals also act on the inputs of the IL-AND-3 element and AND-6 elements, and the signals of the RS triggers 2 also act on the inputs. logical O, which corresponds to the steady state of the RS-triggers 2. But the input and output of the formers 4 and 5 pulses are acted upon by the logical O signal, and at the output of the 5 forcing puller - a logical signal, the pulse shaper 4 produces a positive polarity output at the input and from logical O to logical 1. The pulse shaper 5 generates a negative polarity pulse at the output when the signal to the input changes from logical 1 to logical O. When the touch sensor touches the output unit and 1 a logical O signal is applied, which is fed to the input of the corresponding element AND-NOT 6 and the input of the NPI-NO element 3. At the output of the element 2 $ OR-NOT 3 and the input of the 4 pulse generator, the logical signal O changes to a logical one, which leads to the formation of a single pulse of positive polarity at the output of the formation of 30 pulse bodies 4, which acts on the P-inputs H5 of the flip-flops 2 and sets them to the zero state. On input of the pulse driver 5, the logical O signal is changed to logical. After the end of the positive-field impulse at the input of the impulse-shaper 5, the signal changes from logical to logical O, and a single negative-40 polar polarity impulse is generated at its output, which is fed to the i 1 combined inputs of the AND-6 elements. When a negative polarity pulse coincides at the one input of one of the 64 64 I-HE 6 elements with a logical O signal at the other input at the output of the I-NE 6 element, a positive polarity pulse appears, which is fed to the 5-input of the RS flip-flop 2 and installs it in a single state. The selected signal from trigger 2 is fed to the corresponding output bus 7. On subsequent switchings, the device operates in the same way. Thus, the introduction of a 4 h 5 pulse shaper eliminates the possibility of simultaneous switching of two channels when switching from one channel to another, which increases the reliability of the device. Claims of the invention A sensor switch comprising .block and -sensory sensors, the outputs of which are connected to the corresponding inputs of the element OR-NOT and the first inputs of the corresponding elements AND-NOT, for R5 triggers, the outputs of which are connected to the output buses, and 5 -inputs: to the outputs of the corresponding AND-NOT elements, characterized in that, in order to increase the reliability of operation, pulse shapers are introduced into it, and the output of the OR-NOT element through the first pulse shaper is connected to the R- “Flip-flop th formers. the output of which is connected to the second inputs of the NAND elements. Sources of information taken into account during the examination 1. Patent of Germany No. 2654775, cl. H 03 17/00, 07/08/78. 2. Kalikhman S. G. et al. Radio receivers on semiconductor devices. M., Sw., 1979, p. 325, fig. 12.9 (prototype).