SU1221725A2 - Generator of delayed pulses - Google Patents

Abstract

The invention relates to a pulse technique and can be used to precisely set the time delay or time intervals. The device contains a reference oscillator 1, dividers 2, 3, 12, 13 frequencies, a driver. 10 of the output signal of the reference channel, the driver 11 of the output signal of the delayed channel, the drivers of 14 and 15 pulses. The phase detector 8, the mixer 7 and the tunable generator 9 form the first ring of the phase locked loop. Mixer 4, phase detector 5 and adjustable generator 6 form the second phase locked loop. The introduction of frequency dividers 13 and 14 and pulse formers into the device made it possible to extend the range of control of the delay by decreasing the sampling rate. Invention - additional to the main author. St. No. 1099385. 1 Il. i (L with iNd bd N9 SL I

Description

one

The invention relates to a pulse and radio metering technique, can be used for the precise setting of a time delay or time intervals and is an improvement of the known device according to the basic author. St. No. 1099385.

The goal of the acquisition is to expand the functionality by reducing the discrete control of the hold.

The drawing shows a structural diagram of the generator of delayed pulses.

The generator contains the reference generator torus 1, the first and second dividers 2 and 3 frequencies, mixer 4, phase detector 5, adjustable generator 6, mixer 7, phase detector 8, adjustable generator 9, driver 10 of the output signal of the reference channel, driver 11 of the output signal delayed channel, the third 12 and fourth 13 frequency dividers, the first and second drivers 14 and 15 pulses.

Consistently connected mixer 7, phase detector. 8 and a tunable generator 9 form the first phase locked loop (PLL), and the serially connected mixer 4, the phase detector 5 and the tunable generator 6 are the second PLL, the generator output 6 is connected to the second input of the mixer 7, the output of the reference generator 1 is connected to the input shaper 10, to the second input of the mixer 4 and to the inputs of dividers 2 and 3 frequencies, the second inputs of which are connected to the control input buses, and the outputs - to the second inputs of phase detectors 8 and 5, respectively, the output of the generator 9 is connected to input The dam of the driver 11 and the frequency divider 13, the output of which is connected to the input of the driver 15, and the output of the generator 6 is connected to the input of the frequency divider 12, the output of which is connected to the input of the driver 14, the outputs of the drivers 10 and 11 are main additional outputs of the device.

The device works as follows.

In the initial state, the frequency of the reference oscillator 1 is equal at the outputs of dividers 2 and 3 - f / N, where N is the division ratio of dividers 2 and 3; in the second ring auto-tuning 21725

)about

j 20

25

.g (fg f -f / N f / N-1) / N); in the first ring of auto-tuning - f f. .

At the outputs of the formers 10 and II, two pulse sequences are formed with a frequency f, while the temporal shift of the pulses to the inputs of the former 11 is made in discrete increments of ± T ;, / N, where T is the period of the generator 1 signal relative to the reference pulses of the former 10 by supplying single pulses to the control inputs of dividers 2 and 3. Reversing the output delay of the former 11 is accomplished by switching the control pulses, and since the pulse frequency at the outputs of the formers 10 and 11 are us, the device is capable of operating in the external mode signal delay in the frequency range corresponding to the locked strip synchronization rings.

If in the divider 12 the division factor N-1 is set, and in the divider 13 - N, then in accordance with the frequencies of the oscillators 6 and 9, the frequency of the pulses at the output of the formers 14 and 15 will be equal to:

f.

f ..

f

N-1

6

 f,

 N

N-1

N (N-11

f, N

indicating their coherence. When a single pulse arrives at the control input of the divider 3, a phase shift of i4-27T / N is formed at its output, which is transferred to the output of generator 6 with the opposite sign due to the conversion algorithm installed in the second auto-tuning ring, and then same sign. Thus, the signals at the outputs of dividers 12 and 13 get the same increment in phase -uY, but since the periods of the input signals differ due to different frequencies, the time delay at the input of dividers will be

different:

d1 ,, LC / 2TG4 T (H-1);

55

At, -A f / 2-ir g / N. Due to the fact that the division does not change the scale of the time shift, the output sequences of the formers 14 and 15 receive a delay of one character:

D, / N.

In this case, the mutual shift equal to a single discrete adjustment utp is determined by the difference in delays

, -At, 5

T.j N

- T,

N (N-1)

Thus, the delay control resolution is increased N-1 times, which expands the functionality of the device.

Compiled by S. Klevtsov Editor M. Petrov Tehred V. Kadar Proofreader M. Samborska

Order 1619/58 Circulation 816 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Fshal PPP Patent, Uzhgorod, st. Design,

The generator of delayed pulses auth. St. No. 1099385, characterized in that, in order to extend the functionality by reducing the delay control discrete, the third and fourth frequency dividers and the first and second pulse drivers, whose inputs are connected to the outputs of the third and fourth frequency dividers, respectively, whose inputs are connected to outputs respectively (respectively the first and second adjustable generators.

Claims (1)

Delayed Pulse Generator St. No. 1099385, which consists in the fact that, in order to expand functionality by reducing the delay control discrete, the third and fourth frequency dividers 10 and the first and second pulse shapers are introduced into it, the inputs of which are connected to the outputs of the third and fourth dividers the frequencies whose inputs are connected to the outputs, respectively: 15 of the first and second tunable generators.