SU1075389A1 - Multichannel device for time separation of coincided pulses - Google Patents

Abstract

MHOrOKAHAJlbFiOE APPARATUS FOR TEMPORAL SEPARATION coincident pulses comprising generator posl vdovatelnostey pulses and the first group of IE ti flops by the number kangshov, installing entrances l which form the data inputs of the device, characterized in that in order to increase the reliability of the device in the work by forming neperekryvakschihs pulses constant of a given duration, a second group of AND triggers and a group, of the элементов elements of I, are entered into it, and the generator of pulse sequences contains a counter and an indicator, with than the clock input of the device is connected to the gate input of the decoder and to the counter input of the counter, the outputs of which are connected respectively to the information inputs of the decoder, the outputs of daiahfrator are connected respectively to the first inputs of the @ I group and the clock inputs of the second group trigger, the inverse output of each connected to the installation input to 0 of the corresponding trigger of the first group, the forward outputs of the P triggers of the first group are connected respectively to the information inputs of the P triggers of the second group, KOTOFKiOC outputs connected respectively to second inputs of the AND group elements and outputs form the outputs group. SL CA5 OG Sat

Description

The deification refers to the computing and impulse technique and can be used in control and monitoring systems, as well as in the automation systems of industrial processes. A multichannel device for shifting coincident pulses in time is known, consisting of a generator of separated pulse sequences and an extender containing triggers, the number of which is equal to the number of device channels, the installation inputs of each trigger are connected to the corresponding inputs of the device, and the inverse outputs of each trigger through differential circuits connected to the outputs of the device and connected to the corresponding inputs of the OR ORENT, the other inputs of which are connected to the outputs of the generator will move ies pulse sequences OR element outputs are connected to inputs of the zero installation triggers l. I The disadvantage of this device is the low reliability of its slave due to the fact that triggers form impulses of variable-duration, which can cause them to be lost in case of simultaneous or quay simultaneous action on the triggers of the front-edge spreader and impulse of one of the spread sequences . The closest technical solution1 to the invention is a multi-channel device for shifting sorpadaktshih pulses in the future, consisting of an open-loop generator, more impulses, an extender, and its triggers to the A1A (the installation inputs of which are connected respectively to the device input, and the zero installation voltages through the OR elements are connected respectively with the output of the triggers of the generator of the separated pulse sequences; the second inputs of the OR elements are connected respectively to the direct The outputs of the engine flip-flops, the inverse outputs of which are connected through the differentiating chains to the outputs of the izj device. A disadvantage of the known device is also the low reliability of its operation due to the possibility of loss of the output pulses due to unstable pulse durations formed with n ("differential differentiating chains. The aim of the invention is to improve the reliability of the device in the work by forming non-overlapping pulses of constant duration. The goal is achieved by the fact that Flax device for a time division sovpgschayumchh pulses, the pulse generator comprising first sequences and Rupp of L flip-flops by the number of channels, setting inputs to B which form the data inputs of the device, and enter the second group of h and a group of flip-flops | elements Kf and the pulse sequence generator contains a counter and a descriptor, the clock input of the device is connected to the gate input of the decoder and to the counting input of the counter, the outputs of which are connected respectively to the information inputs of the decoder, the outputs of the decoder are connected respectively to the first inputs of the And group and to that There are 4 inputs and h inputs of the second group of flip-flops, the inverse output of each of which is connected to the installation input of the corresponding trigger of the first group, the direct outputs of the first flip-flops A group is connected respectively with information inputs and triggers of the second group, the outputs of which are connected respectively with the second inputs of the AND elements of the group, the outputs of the AND elements of the group form the outputs of the device. FIG. 1 shows a diagram of the device; in fig. 2 - time diagram of his work. The device contains a pulse train generator 1, which includes a pulse counter 2 and a decoder 3, the first group of triggers 4-7, the second group of triggers 8 - AND, and the group of elements AND 12 - 15. PIRES 16-19 are device inputs, and tires 20 23 of his exits. The clock pulses F arrive simultaneously on the counting input of binary counter 2 and the gate input of the decoder 3 of the generator 1 of the pulse sequences. From the outputs of counter 2, the pulses in the binary Hcw code are fed to the corresponding inputs of doyffratora 3, from the outputs of which the pulse sequences P shifted in time go to the clock inputs of the corresponding triggers 8-11 and the inputs of elements 12-15, and the resulting pulse sequences F due to the decoder gating clock pulses do not overlap and are shifted in time relative to each other by the magnitude of the clock pulse repetition period f. If there are sequences; IMPulseK, trigger inputs 8-11, and no pulses at inputs 6-19, device triggers 4-7 and 8-11 are in state 0. Trigger 8-11 are D-type triggers working on the same pulse at the clock input. Moreover, their clock inputs are connected to the output of the decoder 3, and the O inputs are connected to the outputs of the triggers 4-7 of the first group. The inputs of the flip-flops 4-7, connected to the inputs of the devices 16-19, are direct installation inputs and the inputs connected to the outputs of the flip-flops 8-11 are inverse. On the device inputs, the following frequency pulses arrive at the corresponding inputs. dyons are installed in the second group of triggers, transferring them to a single state. Closer to the sequence of the pulses f, –f from the output of the generator 1, acting sequentially and the corresponding clock inputs of the triggers 8–11, translate the last fS 171 also into a single state. At the same time (the trigger time of the trigger units is not taken into account) the signals from the inverse outputs of the flip-flops 8-11 each go to the inverse setting inputs of the flip-flops 4-7 and translate them to the initial (zero) temperature. At the outputs of the And 12-15 elements, non-overlapping shpups of a constant duration equal to the duration of the clock pulses are formed. From the analysis of the time diagram of the device (Fig. 2), it can be seen that even the rather short duration of the output pulses of the trigger 4-7 does not affect the reliability device operation. Valid, triggers 4-7 return to the initial state only after the corresponding triggers 8-11 go through the 4 4 single states, and the transition x | always occurs after installation; triggers 4-7. Therefore, even with large parasitic capacitances at the outputs of the flip-flops 4-7, the device will work well.

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Claims (1)

MULTI-CHANNEL DEVICE FOR TEMPORARY SEPARATION OF MATCHING PULSES, containing a pulse sequence generator and a first group of I? triggers by the number of channels, the input of the installation in * 1 * of which form the information inputs of the device, characterized in that, in order to increase the reliability of the device in operation by forming non-overlapping pulses of constant duration, the second group of I triggers and a group are introduced into it. of П elements And, and the generator of pulse sequences contains a counter and a decoder, and the clock input of the device is connected to the gate input of the decoder and to the counter input of the counter, the outputs of which are connected respectively to the information inputs of the decoder, the outputs of the decoder are connected respectively to the first inputs of the elements And groups and with clock inputs П triggers of the second group, the inverse output of each of which is connected to the input of the setting in * 0 * of the corresponding trigger of the first group, direct outputs η of the trigger s of the first group are respectively connected to data inputs of n flip-flops of the second group, kotodah outputs connected respectively to second inputs of the AND group elements and outputs form the group output device. pm S sl 00 ζβ