SU595862A1 - Pulse-frequency doubler - Google Patents

Description

one

The invention relates to the field of pulse technology and can be used to double the frequency of pulses in devices where the input frequency changes rapidly within wide limits.

A device for multiplying two input pulse sequences is known, which contains a trigger, the outputs of which are connected to one input of the AND elements, on the other inputs of which pulse sequence FI is fed (t and () - Element outputs And connected to the input of the P1LI elements.

A disadvantage of the prior art is the low multiplication accuracy.

In order to increase the accuracy of multiplying the pulse frequency doubler, contains a control trigger, the input of which is connected to the input bus, two multiplication channels, each of which includes an AND element, one of which is connected to the forward output of the equalization trigger, and the other To the inverse output, and the OR element, a divider into two, a pulse generator, and in each multiplication channel, a reversible counter, a multiple-input element AND, a zero-organ and additional elements AND, the pulse generator output connected directly to ervym donolnitelnyh first inputs of AND gates, the second inputs of which are combined with the first inputs of AND gates another

channel and a two by divider to the second input of element II of each multiplication channel, and in each multiplication channel the output of element I is connected to the summing input of the reversible counter, the output of the first additional element I is with the first input of the second additional element I, the second input of which is connected to the output of the multi-input element And, and the output to the subtractive input of the reversible counter, the outputs of which through the multi-input element And and the null-organ, connected in series, are connected to the input of the element OR, the third input of which a connected to the input bus.

The drawing shows a structural electronic dual frequency circuit of the pulses. The device contains 1 trigger trigger. generator 2 pulses with frequency f, divider 3 into two, elements AND 4-9, reverse; 1e counters 10, II, multiple input elements AND 12, 13, the number of inputs equal to the number of digits of the counter, zero-organs 14, 15, element OR 16. The device operates as follows. The input pulse passes through the element OR 16 to the output and simultaneously throws the thanger 1 to the position corresponding to the unit on one of the outputs. Elements 4 and 6 are opened, and input "plus counter 10 is fed every second pulse from generator 2. If the frequency of the input pulses is F,

and auxiliary - f, then by the arrival of the next input pulse in the counter 10 will be

: i; inncaiio number of pulses, ramps ii -. Elements 6 and 9 of the generator 2 impulses, dechchitel 3, are sent to the input “mn. And 9. The further occurrence of pulses in the meter will stop. E) the same time the null-organ 15 forms a pulse, the passage of the gtsny through the OR 16 element of the device output. Prior to the arrival of the next input pulse, the circuit 11 remains empty.

The next input pulse flips trigger 1 to the position at which subtraction is done in counter 10, and in counter 11 it is summed. .MoMeirr is free to count if in the letters in the previous design

- PMLS, corresponding to / f

1, i.rj-g, where 7

of time

Nernod input

pulses, a /

nerd auxiliary pulses. At this time, at the output of the device, besides the input, additional pulses appear, so that the output pulses will be twice as large as the input of the LIH, and the full-length signals will be distributed exactly in the middle between the input pulses. Irn sufficiently high frequency of all-impulsive impulses () and the increase in time, but the appearance of additional anapulmonary pulses can be made very small.

Claims (1)

1. Karpov RG Tehppka frequency-nnulnogo modeling. M .. “Machining, 1909, p. 42, fig. one. 8d / Jfod