SU410555A1 - - Google Patents

Description

one

The device can be used in electronic and quasi-electronic PBX, cordless switches.

The known pulse distributor, containing “triggers and three-input circuits“ AND - NOT.

The purpose of the invention is to simplify the device.

The proposed valve is distinguished by the fact that the inverse inputs of the odd-numbered and even-flip-flop triggers are connected to the clock busses, and the inverse flip-flop output of each bit is connected to the forward triggering input of the subsequent bit and the corresponding input of the corresponding AND circuit, two the other inputs of which are connected to the inverse trigger output of the previous bit and to the direct trigger output of the subsequent bit, respectively.

FIG. 1 shows a block diagram of the proposed pulse distributor; in fig. 2- time diagram of operation of two bits of the device.

In the initial state of the distributor at the input 1 - the inverted clock pulses, the inputs 2, 3 receive the clock pulses, at the inverse outputs of the triggers - the inverted clock pulses shifted at the subsequent trigger relative to the previous one by / 2 T. At the outputs 4, 5 - by unit.

When a unit arrives at the input 1 and with the arrival of a clock pulse at the input 2, the trigger 6 is transferred, and at the inverse output there appears a unit that arrives at

the direct input of the trigger 7 and the input of the AND circuit is NOT 8. At the output of the last 7, zero appears. With the appearance of a clock pulse at input 3, trigger 7 is transferred and at its inverse output a unit appears that goes to the AND-HE 9 circuit and to the direct input of trigger 10, and zero appears at the forward output of trigger 7, which arrives at the input of the " AND - NOT 8 ' shift, and at the output of this circuit, a unit appears again. On

Output 5 of the AND-NOT 9 circuit appears zero, since at its input there are three units from the direct output of the trigger 10 and the inverted outputs of the flip-flops 6, 7. The zero output of the AND-HE 9 circuit remains until it arrives at

the input 2 of the clock pulse, which throws the trigger 10. From the direct output of the trigger, zero is fed to the AND – HE 9 circuit, and the output 5 of this circuit is one.

Subject invention

The pulse distributor, containing a trigger and a three-input "AND - NOT, O" circuit, and that, in order to simplify it, the inverse inputs of the odd-even-even trigger are connected to clock pulses, and the inverse output of the trigger of each bit is connected to the direct trigger input of the subsequent discharge and with one input of the corresponding “AND - NOT,

The other inputs of which are connected to the inverse output of the trigger of the previous bit and to the direct output of the trigger of the subsequent discharge, respectively.

It ItIL

3 ini ini If

five . R p r r

II n If rr f

irnrnrnnr t