SU982195A1 - Switching device - Google Patents

Description

() SWITCH

one

The invention relates to a pulse technique and automation and can be used in control devices for various objects.

Known switch containing serially connected generator, counter, step decoder with the keys at the output 1.

However, this switch is characterized by low speed due to the complex construction of the decoder, the likelihood of frequent error due to the fact that the decoder performs the functions of a code converter.

Also known is a switch containing a clock pulse generator, the first of the outputs of which is connected to the first input of the switching unit through serially connected counter and decoder, as well as output switches 2.

The disadvantages of the known device are that in order to change the switching time, it is necessary to turn on / off the device, manually switch the switching blocks and turn on the device again. In addition, the device is characterized by low reliability of operation, due to the presence of mechanical elements (diode pins) and low speed, due to the fact that due to the impossibility of automatic adjustment during operation, the channel switching time is chosen with a large margin, which often leads to waste of time.

The purpose of the invention is to expand the functionality and increase reliability.

Claims (2)

This goal is achieved by the fact that the switch containing the clock pulse generator, the first of whose outputs is connected to the first input of the switching unit through the serially connected counter and the decoder, as well as the output keys, has a synchronization unit entered, the first and second 398 inputs of which are connected respectively to the first output of the switching block and the corresponding outputs of the output keys, the output of the synchronization block is connected to the control input of the counter; the second output of the switching block is connected to the corresponding conductive output key inputs, the second clock pulse generator output is connected to the second input of the switching unit. The drawing shows a block diagram of a commutator. The switch consists of a generator of 1 clock pulses, the first output of which. connected to the first input of counter 2, the output of which is connected to the input of the decoder 3, the output of which is connected to the second input of the switching unit, the first output of which is connected to the inputs of the output keys 5. The second output of the generator 1 clock pulses to expand the functionality of the device connected to the first input of the switching unit 4. Such a connection ensures the launch of the switching unit and allows switching the output switches (channels) in an arbitrary order. The outputs of the output keys 5 are associated with the information inputs of the synchronization unit 6. The synchronization unit 6 is designed to receive information from the outputs of the output keys 5 and generate a counter control signal 2. The control input of the synchronization unit 6 is connected to the second input of the switching unit A to ensure reliability, which ensures the reception of information by the block 6 from the corresponding outputs of the output keys 5 The output of the synchronization unit 6 is connected with the control input of the counter 2 to provide automatic control of the switching time. The device works as follows. The pulses from the clock pulse generator 1 are fed to a counter 2, the output combinations of which determine the appearance of signals at the outputs of the de encoder 3, which control the switching unit k, setting the switching order of the output switches 5 The information from the outputs of the output switches 5 goes to the synchronization unit 6 which, under the influence of the control signal from the switching unit, generates a control signal for the counter, 54 which is fed to the control input of the counter 2. The information at the outputs of the output keys 5 is determined and depends on the state of the connected object (not shown in the drawing) controlled by the output keys 5. The state of the object in each work cycle may vary. If the object has changed its state accordingly, the counter 2 under the influence of the signal from block 6 also changes its state and the correct channel of one of the output keys 5 is connected. If the object has not changed its state, the counter 2 retains its position. However, the clock pulse generator 1 starts switching unit A, which repeats the connection of the channels of the previous cycle. This continues until the corresponding state of the controlled object is reached. Thus, depending on the effect of the signals from the output keys 5 on the controlled object, the connection time of each channel is automatically controlled. Compared to the well-known switch, the functionality has been extended by connecting the additionally introduced synchronization unit 6 with counter 2, as a result of which the switching time is automatically adjusted; increased reliability of the device by eliminating manual manipulations and mechanical switching elements. Claim switch containing a clock pulse generator, the first of the outputs of which is connected via a serially connected counter and decoder to the first input of the switching unit, as well as output keys, characterized in that, in order to extend the functionality and increase reliability of operation, a synchronization unit is inserted the first and second inputs of which are connected respectively to the first output of the switching unit and the corresponding outputs of the output keys, the output of the synchronization unit is connected to the input In the control of the counter, the second output of the switching unit is connected to the corresponding inputs of a 5982195A keys, the second output of the generator. 1. USSR author's certificate of clock pulses connected to the second tf, cl. H 03 K M / Qk, 1973. eye the input of the switching unit. 2. USSR author's certificate Sources of information, No. 610302, CL. H 03 K 17/0, 1976 taken into account in examination 5 (prototype). 7 g