SU980267A1 - Pulse delay device - Google Patents

Description

(5) DEVICE FOR DELAYING PULSES

The invention relates to radio engineering, automation, computing and measurement technology and is intended for controlled delay of pulse signals. A device is known which comprises a first time selector connected in series, between the output and the second input of which the first outlet and the first output of the first trigger are connected, the first collecting element, the second trigger, the second time selector, the first counting unit, the second collecting element, the auxiliary counting unit, the output of which is connected to the second input of the first trigger, the second output of which is connected to the third input of the second time selector, as well as series-connected generators p counting pulses, the third time selector, the second and third inputs of which are combined with the corresponding inputs of the second time selector, and the second counting unit, the second input of which is combined with the second input of the first counting unit and connected to the output of the auxiliary counting unit, and the output connected to the second one. the input of the first collecting element and the second input of the third tri1-gera, the output of which is connected to the first input of the third time selector, the output of the first cross-section block-element is connected to the second input of the second trigger and the first input of the third trigger, the outputs of the auxiliary counting unit are connected to the corresponding inputs of the matrix Cl . However, this device has insufficient speed and accuracy. The closest in technical essence to the present invention is a device that is a sequentially connected first time selector, a reversible pulse counter and a zero decoder, the output of which is connected to the first trigger input, an input of the series-connected differential circuit and the input of the first spelling selector. pulse front delay circuits, the output of which is connected to the second trigger input, the first output of which is the output of the device, and the second through the second time interval The selector is connected to the second input of the reversible counter of pulses, the output of the generator of counting pulses 21 is connected to the combined second inputs of the time selectors. A disadvantage of the known device is the complexity of the technical solution, low speed and limited delay accuracy. The accuracy of the delay in the device is determined by the pulse repetition rate, which in turn is limited by the speed capabilities of the pulse counting by reversing counters. From condition 1e6 to ensure the required accuracy of the delay, restrictions are imposed on the frequency and duration of the delayed pulses. The purpose of the invention is to increase the speed of the device. The goal is achieved by the fact that a device containing a forming trigger and a first delay node from K parallel blocks for generating delay signals, each of {which includes a trigger and a differentiating element, are entered into an input differentiating element. The second analog delay node and Q each of the delay nodes is inserted into the signal amplitude limiting unit and the OR element, with the AND element, the BAN element, the sensor delays, and in the K-th block of formation of the delay signals of each of the nodes entered and mic delay intervals, the trigger input is connected to the input of the delay signal generation unit, and the output of the combined input of the first input of the trigger element And the formation of the delay signals between the first input of the home and the trigger output is included the prohibition element, the output of which is connected to the second input of the trigger through the interval delay sensor, the output of which is connected to the combined second input of the AND element and the input In the differentiating element, the output of which is connected to the second output of the delay signal shaping unit, the IC-M block for generating the delay signals between the first and second inputs has a delay interval sensor, the trigger output is connected to the input of the differentiating element, the outputs of the differentiating elements of the delay signal generation blocks are connected to the corresponding inputs of the OR element, the output of which is connected to the output of the delay node, and the input of the amplitude limiting unit of the signals connected to the input of the first block generating delay signals, is connected to the input of the delay node, the inputs of the first and second delay nodes are combined and connected to the output of the input dff (yrentsi element, whose input is connected to the input of the device, and the outputs of the first and second delay nodes are connected to the corresponding inputs of the forming trigger, the output of which connected to the output of the device, the combined second inputs of the sensors of the delay intervals of both delay nodes are connected to the first control input, and the combined third inputs of the sensors of the intervals back The holders are connected to the second control input of the device. FIG. 1 shows a structural electrical circuit diagram of the device. . The device contains differentiating unit 1, blocks for limiting the amplitude of signals 2-1., 2-2, elements OR 3-1, 3-2, forming trigger k, delay nodes 5-2, blocks for generating delay signals 6-D, 6-2 , 6- (К-1) 6-К, б-Ц, 6-2i, 6- (К-1) 2, 6-К, elements I 7-C, 7-21, 7-CK-1L, 7 -4, 7-2 ,, 7-fK-l) 2, the element of the prohibition 3-1i, 8-2V, 8- (K-1) 8-1,1, 8-22 8- (K-1) 2 , differentiating elements 9-1, 9-2, 9- (К-1) - ,, 9-К, 9-12 .. 9-22, 9- (к-1) 7. S-kj. sensors of delay intervals Yu-Ts, 10-2, lO- (Kl), 10-К., 10-1.2, 10-2.1, 10- (К-1) „, Yu-K-, triggers 11-Ц, 11 -2. ,, lT- (Kl) i, 11-K-, 11-12. O1-2d 11 - (K-13a, 41 -Kg, output 12 of the device

VA, output 13, control inputs I, 15. A unit in the index points to the 1st node, two in the index points to the 2nd node. ,

FIG. Figure 2 shows the time diagrams of the programs that show the operation of the device.

The device works as follows.

The pulse signal differentiates with differentiating unit 1 (. 1) and is limited from top to bottom in blocks of limiting the amplitude of signals 2-1, 2-2 of the first and second delay nodes 5-1 5-2, respectively (Fig. 2, pos. 16, 17 ).

The pulses of differentiation of the cabins in each of the delay nodes 5-1, 5-2 triggers 11-1-, 11-12 of the first and second blocks of forming the delay signals 6-1, 6-12 simultaneously after passing the BAN elements 8-1-, ; 8-l2 serve as a signal for the onset of the delay inerval. Due to the established delay time, the sensors 10-li, 10-12 generate pulses that return triggers to the initial (zero) state (Fig. 2, pos. 18-1-, 9-12) Differential pulses, jg incoming to the inputs of the triggers 11-1 11-1 / 1 D ° of the end of the set delay interval, pass through the open elements AND 7-C 7-12 triggering the triggers 11-2-; 11-22. and Sensors | 10-2. ,, 10-2 2 delay intervals of subsequent delay signal generation units 6-2, 6-22 C) i pos. 18-2, 19-22). At the same time, until the outputs of the 11-1.J flip-flops have a high potential, the opening elements AND 7-1ij 7-1 2 and the locking elements BAN 8-C, 8-1 "1, to the inputs of the sensors 10-C, 10-12 will not pass pulses that determine the beginning of the delay interval. The work of subsequent blocks 6-1- ,, .. 6- (K- 1) -j, 6- 1 2 6-2о. . 6- (K-1) 2 generation of the delay signals is similar to the operation of the first blocks 6-C, 6-12 t If, before the end of the delay interval, the K-th from the moment of the start of the delay, the differentiation pulse arrives at the inputs of the trigger 11-1, 11-12 then it passes through the open elements And 7-1-f, 7-2, 7- (K-1)., 7-12. 7-22 7- (К-1) 2 for triggering 11-К, 11-К 2 and К-х sensors 10-К ,, 10-Kj intervals.

delay (.fig. 2, pos. 18-K. ,, 19-K2) Differentiating elements 9-1-) 9-2 -,; 9- (K-1). ,, 9-K ,, 9-l2 , 9-22 9- (К-1) 2 9-К2 impulses of differentiation of impulses of impulses, I produced by triggers 11-1 .., 11-2, 11- (К-1), 11-К., 11- 1 ,, 11-2 "11- (K-1) / 3t 11-K2 (FIG. 2, pos. 20-C, 20-2-,, 20-K, 21-1 21-22 21-Ki) . The combined s single stream by the elements OR. 3-1 3-2 differentiation pulses 27 trigger the forming trigger, and the differentiation pulses 23 return it to the zero state. Controlled by differentiation signals, the forming trigger 4 restores the original pulse sequence 2 with a time delay set by the sensors, 10-2, lO- (Kr) - ,, 10-К, 10-12 0-22j10- (K-1) 2 10 - To the delay intervals (Fig. 2, pos. 12).

Sensors 10-C, 10-2, lO- (K-l). ,, 10-K. ,, 10-12 (K-1) 4, 1d-K2 can be controlled as. several inputs, for example, from a device for measuring the phase difference roughly. and precisely in automatic adjustment and synthesis systems, pulse sequences.

The proposed device favorably differs from the device of the prototype by technical implementation, higher speed and accuracy of pulse delay.

Claims (2)

1. Mirsky G.Ya. Instrumental characterization of random processes. M., Zergi, 1972, with. . 2. USSR author's certificate ff 271566, cl. And 03 K 5 / t3, 1969 (prototype).