SU1622941A1 - Device for switching electric circuits - Google Patents

Abstract

The invention relates to a pulsed technique and can be used by j control and control devices for a quick switching of electrical circuits, in which the switching on of a new circuit is accompanied by the disconnection of a previously selected one. The device contains a control unit 1, an encoder 4, a decoder 3, the element OR-NOT 6. a logic element 5 of addition modulo two. block 2 of the display in the form of a group of single indicators, and the unit. 1 control contains a group of single switches 1.1.1.1. P type button with return- :. The proposed implementation of the device for switching electric circuits allows to simplify its logical structure and reduce the number of cases when it is implemented on standard integrated circuits. 1 il.

Description

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The invention relates to a pulse technique and can be used in monitoring and control devices for dependent switching of electric circuits, in which switching on a new circuit is accompanied by switching off a previously selected one.

The aim of the invention is to simplify the device.

The drawing shows a functional diagram of the device.

The device contains a control unit 1 that includes switches (buttons) 1.1, 1.21.p, an indication unit 2 that includes indicators 2.1, 2.22p, a decoder

3, encoder 4, element 5, addition modulo two, element OR — NOT 6, power bus 7 and 8, first outputs 9.1, 9.29 m of device with codes 2, 2 ..., 2

t-1.

and second

outputs 10.1, 10.210.n with code 1 from p.

Outputs 10.1, 10.210.

United with the same outputs of the decoder 3 and block 1 and the inputs of block 2, encoder 4 and element 5. Outputs 9.1, 9.29. The device connected to the same outputs of the encoder 4, the inputs of the decoder and the inputs of the element b connected to the output of the first output of the decoder 3. Element The 5th output is connected to the control input of the decoder 3.

The device works as follows.

After connecting the power supply, the device can be in one of the n steady states that correspond to the presence of one logical 1 at the outputs

10,110.p. In steady state, not

An example in the state K, where 1 g p, the 2K indicator is on, element 5 generates a signal 1 that goes to the control input of the decoder 3, allowing the signal to pass through the ring between the decoder 3 and the coder 4, which is a trigger with The 2t steady state, which in this case is in state K. The K code, received from the output of the decoder 3 to the encoder 4, is converted into a binary code. In this case, logical 1 is present at the output 10.K, and at outputs 9.1, 9.29.PL - a binary code with a value K.

When you press the switch (button) of any other channel 1 (, - 1), the inputs of element 5 receive two logical 1 (one corresponds to the state K of the trigger, and the other comes from the switch 1.1) and it responds by issuing a logical O, which disables the decoder 3 In this case the trigger ring will be suppressed and at the outputs of the decoder 3 there will be only one logical 1, which is called by the switch (button) 1.1. Element 5, with one logical 1 at its inputs, will remove the prohibition from decoder 3 and the trigger, which comes from decoder 3 and encoder 4, is set to state I, which is preserved after returning the switch (button) 2.1 to its original state.

Element 6 serves to prohibit a state in which the decoder 3 is closed from element 5, generating a logical O in connection with the presence of logical O on all its inputs from the decoder decoder 3. Taxoning state is prohibited because it violates between ksd-zmi at the outputs of 9.19 m and H) 1, ..., 10 g. Element 6 converts the zero / -combination code at the output of the encoder,; The logical 1, which enters the output circuit 10.1, restores the correspondence between the codes on the outputs

9.l, ..., 9 m and 10 110.p and through element 5

opens des.lifragor 3.

Ph ovm vg e of the Invention Utility for switching electrical prices, containing an indication display control unit, an encoder and a D (.INTER. Element OR NOT and an element of the module modulo DB, the control unit transmits n switches, the indication unit contains the indicators, the inputs i of the switches of the control unit are interconnected and form the input of the control unit, the outputs of the switches of the control unit form the outputs of the control unit, the inputs of the indicators of the indicator unit form the inputs of the display unit, and the outputs of the indiciaurs are connected I wait for myself and form the indicator unit input, the control unit input and the output of the display unit are connected respectively to the common power and zero potential buses, the decoder inputs are connected to the encoder outputs, the inputs of the OR-NOT element and the first outputs of the device, the decoder outputs are connected to the encoder inputs, with the inputs of the display unit, with the outputs of the control unit, with the inputs of the logic element of addition modulo two and with the second outputs of the device, characterized in that, for the purpose of simplification, the output of the OR element is NOT connected to vym output decoder, an output of voltage eating modulo two is connected to the control input of decoder

Claims (1)

Claim A device for switching an electrical price comprising a control unit. an indication unit, an encoder and a decoder, an OR-NOT element and an attachment element modulo two, wherein the control unit contains η switches, the display unit contains η indicators, the inputs of 11 switches of the control unit are interconnected and form the input of the control unit, the outputs of the switches of the control unit form outputs of the control unit, the inputs of the indicators of the indicator unit form the inputs of the display unit, and the outputs of the indicators are interconnected and form the output of the indicator unit, the input of the control unit and the output of the indication unit are respectively connected to common power and zero potential buses, the decoder inputs are connected to the encoder outputs, the inputs of the OR-HE element and to the first outputs of the device, the decoder outputs are connected to the encoder inputs, with the inputs of the display unit, with the outputs of the control unit, with the inputs of the logical addition element modulo two and with second outputs of the device, characterized in that, for simplicity, the output of the OR-HE element is connected to the first output of the decoder, the output of the module is modulo two connected to the control input of the decoder a radiator.