SU1457154A1 - Frequency multiplier - Google Patents

Abstract

The invention relates to a pulse technique and can be used in measuring devices, in devices for automation and remote control. The purpose of the invention — improving reliability — is achieved by introducing a single vibrator 12, the output of which blocks the element AND 2, eliminating fragmentation of the output pulse when the frequency of the input pulses on the bus 9 changes. The device also contains the elements OR 1.5 and 6, the elements AND 3 and 4 , delay elements 7 and 8, and a counting trigger 10. The device has an integer multiplication factor and provides an update of the multiplied frequency in each period of the input frequency pulses. I il.

Description

element OR 1 are connected to the corresponding-15 element 7, the process is repeated until

With the outputs of the second and third elements And 3 and 4 and with the first inputs of the second and third elements, OR 5 and 6, respectively, the outputs of which are connected to the first inputs of the second and third elements, respectively, of the first and second elements 7 and 8, Input bus 9 connected to the second inputs of the second and third elements IL 5 and 6 and to the counting input of the trigger 10, the first and second outputs of which are connected to the second inputs of the second pulse of the second pulse on the bus 9, respectively. With the appearance of the second pulse on the bus 9 adenomas it in time with the next pulse (delayed) obusloaggennoe scatter parameters and thermal instability mi delay device elements.

Input pulse can advance

the next delayed pulse (repetition pulse) arriving at the bus 1 1 from the output of element 3, in this case, the second input pulse (similar to

of the first and third elements, And, the Output is the first input pulse; of the first element OR 1 is connected to the output- 30 walks through the element AND 2 and the element

Noah bus 11 and through the one-shot

12 - with the second input of the first element

AND 2,

The frequency multiplier works as follows,

 The input impulse of the bus 9 is fed to the first input of the ele 1ent 2 and passes to its output, since the second input of the element 2 is given

OR 1 to bus 11; At the same time, the second input pulse sets. trigger 10 to another steady state, thereby closing the element I es 3 and preventing the passage of a delayed pulse to the alarm 11, It also prepares for operation (opens) the element AND 4, the second input pulse, passed through the element OR 6, the element

the signal from the output of the one-shot 12, the 10 th element of AND 4 is fed through the element OR 1 to bus II, as well as to the first input of element 6. The process is repeated until the third input pulse arrives,

the course is in its original state. Pass through the element And 2, the input pulse arrives at the first input of the element OR 1, passes to its output on the bus 11, starts the one-shot 9, which closes the second input element And 2 for the time determined by the duration of the output pulse of the one-i vibrator 12, At the same time, the input pulse from the bus 9 is fed to the counting input of the trigger 10, sets it to one of the stable states (any), and to the second outputs of the OR 5 and 6 elements, passes through these elements and enters from the output of the OR 5 element to the delay element 7 , from the output of element 6 to element 8, From the outputs of elements 7 and 8, the delayed pulses arrive respectively at the first

OR 1 to bus 11; At the same time, the second input pulse sets. the trigger 10 to another steady state, thereby closing the element 3 and preventing the delayed impulse from passing to the switch 11, it also prepares for operation (opens) the element 4, the second input pulse passing through the element 6 or 6

  Element 4 is fed through ele

g

0

ment OR 1 to bus II, as well as to the first input of element 6, the process is repeated until the arrival of the third input pulse,

The repetition pulse can advance the input pulse. In this case, the repetition pulse passes from the output of the element AND 3 through the element OR 1 to the bus II and starts the one-shot 12, which closes the element AND 2, preventing the second pulse (second) from entering the bus 11, the second input pulse, as in the first case, sets trigger 10 to another steady state.

Thus, the doubling of the pulse on the bus 11 at the time of arrival of the next input pulse is eliminated, and the information is updated in each period of the input information.

Claims (1)

Formula inventions n and A frequency multiplier containing the first AND element, the first input of which is connected to the input bus, the output to the first input of the first element OR, the first delay element whose output is connected to the first input of the second And element, the second delay element, the third AND element, second - the third and the third OR elements, the trigger and the output bus, which is different in that, in order to increase reliability, a one-shot is introduced into it, the output of which is connected to the second 1457154 the input of the first element is AND, the input is with the output bus and with the output of the first element OR, the second input of which is connected to the output of the second element AND and the first input of the second element OR, the third input - with the output of the third element OR and the output of the third element AND, the first the input of which is connected via the second delay element with the output of the third OR element, the second input of which is connected to the input bus, with the second input of the second OR element, the output of which is connected to the input of the first delay element, and the counting input of the trigger, the first and second outputs are connected to second inputs respectively of the second and third elements I.