SU1228227A1 - Pulse train generator with programmed control - Google Patents

Abstract

The invention relates to a pulse technique and can be used in automatic control devices. The purpose of the invention is to expand the functionality of the device. The generator comprises a reference frequency generator 1, counters 2 and 8 pulses, memory block 3, pulse shaper 4, element 5 OR, delay element 6, element 7 AND, initial state setting bus 9 and output bus 10. Introduction of a memory block and the formation of new connections between the elements of the device allows the formation of a series of pulses, the length of which is not limited by the length of the counter, while the pauses between the series can be of arbitrary duration, and the follow-up period or the duration of the pulses of each series or each pulse can be changed If the dividing ratio counter 8 is equal to 1. 1 il. c (Oh

Description

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The invention relates to a pulse technique and can be used in automatic control devices.

The purpose of the invention is to expand the functionality of the device due to the formation of a series of pulses that are arbitrarily different from each other and not limited by the length of the counter, arbitrary pauses between them, as well as the ability to change the follow-up period and the duration of the pulses during the generation process.

The drawing shows a functional diagram of a pulse generator with program control.

The generator contains a generator of the reference frequency, a pulse counter 2, a memory block 3, a pulse driver 4, an OR element 5, a delay element 6, an AND element 7, a pulse counter 8, an initial state setting bus 9, an output bus 10, the first input element 5 of SHS 5 is connected to the installation input of the first counter of 2 pulses, the first group of outputs of memory block 3 is connected to the control inputs of the former of 4 pulses, the information input of which is connected to the output of the reference frequency generator 1, the output of the former of 4 pulses is connected to the input of the element I 7 and the subtracting input of the second counter 8 pulses, the information inputs of which are connected to the second group of outputs of memory block 3, the last output of which is connected to the second input of element And 7, and the address inputs of memory block 3 are connected to the outputs of the first counter 2 pulses, the output of the second counter of 8 pulses is connected to the summing input of the first counter of 2 pulses and to the second input of the OR element 5, the output of which is connected to the setup input of the second counter of 8 pulses through delay element 6.

The generator works as follows.

The signal on bus 9 sets the counter 2 to zero, which sets the contents of the zero address on the outputs of block 3, then the same signal coming through the OR element 5 and the delay element 6, the contents of the zero address of block 3 from the second group of outputs is rewritten into the counter 8, and the first

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the group of outputs of block 3 goes to shaper 4 and sets how the follow-up period or pulse duration should be converted, received from generator I, Counter 8 subtracts the pulses from shaper 4 from the recorded number after counter 8 counts up oh on his

A JQ code introduces a carry signal that transfers counter 2 to the next state and writes the number recorded at the next address into block 3, followed by

) 5, the counter 8 starts counting or an additional number of pulses arriving at the output bus 10 or the length of the pause, depending on the state of the last output of block 3,

20 which either permits the passage of pulses from the imaging device 4 through the element AND 7 into the bus 10 or does not permit. The delay element 6 delays the write signal by the time necessary to set the information

at the output of the counter 2 and the block 3. The shaper 4 can be performed on the pulse counter 155IE7, the output of the last bit of which is connected

jg to his entry entry. The D-inputs of the pulse counter are the information inputs of the imaging unit 4, and the subtracting input of the counter is the imaging input.

The pulse train generator, with programmed control, allows to form pulse trains, the length of short circuits is not limited by the counter length, the pauses of arbitrary duration between the series, change the follow-up period or the pulse duration of each series or each pulse if the division ratio of the second counter is 1.

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Claims (1)

Invention Formula A programmed pulse train generator, comprising a reference frequency generator, the first and  the second pulse counters, the element And, the element IL, the delay element and the forriron; pulse device, the first input of the element OR is connected to the installation input of the first pulse counter, 55 characterized in that, in order to expand its functionality, a memory block is inserted into it, the first group of outputs of which is 3128227 It is connected to the control inputs of which is connected to the second input of the pulse driver, the information element I, and the address inputs the input of which is connected to the output memory unit is connected to the home outputs of the reference pulse generator, the first pulse counter, the output the output of the pulse generator podklyu-j of the second pulse counter is connected to the first input of the element I and k with the summation of the input of the first counter of the second counter of the pulses and the second input of the pulses, the information inputs of which are OR, whose output through the element connected to the second group you delayed connected to the installation in moves of the memory block, the last exit to the input of the second pulse counter.