RU1839277C - Multichannel oscillator of rectangular pulses - Google Patents

Abstract

The device relates to a pulse technique and can be used in automatic control systems, control and measuring devices. The purpose of the invention is to simplify and increase the reliability of the device by reducing the hardware cost of the storage device in the code sensors. The goal is achieved by introducing codes common to all channels of the control unit of the sensor sensor, an OR element, (2N - 1} -th input of which is connected in each channel to the output code converter - time by the input of the divider and the recording enable input of the converter code - time by the 2Mth input - in each channel with an additional code-time converter write enable input and by the corresponding output of the control unit and an output - to an input of the control codes sensor, which outputs are connected in each of the N channels, respectively, with similar inputs of code converters - Login time control flask connected to a bus run 1 yl.

Description

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

The aim of the invention is to simplify a multi-channel generator and increase its reliability.

The drawing shows a functional diagram of a multi-channel generator.

The multi-channel generator contains a reference frequency generator 1, a control unit 2, N pulse shaping channels 3-1-3-N, a code sensor A, an OR element 5, (2M-1) -th input of which is connected in each channel to the output of the converter 6 code - time, by the input of the divider 7 and the recording enable input of the code-time converter, 2N-u input in each channel with an additional write-enable input of the code-time converter and the corresponding output of the unit, 2 controls, and the output with the control input of the sensor 4 codes, the outputs of which are connected in each of the channels respectively Twain with similar input converters-time code.

A multi-channel generator operates as follows.

In the initial state, the code-ppm converter 6 does not work, the sensor 4 codes outputs the code of the first time interval from the trigger pulse, which is fed to input 8, to the leading edge of the first output pulse via any of the channels, in this state the device is before the start pulse arrives at the exit 8,

The trigger pulse is fed to input 8 and, accordingly, to the input of control unit 2. The control unit from the start pulse generates at its outputs a series of pulses shifted relative to each other, which are fed to the second inputs of the transducers b code-time and to the OR 5 element. The mutual temporal arrangement of the pulses from the control unit 2 determines the order of recording of time interval codes to code-time converters.

Suppose that the control unit sends the first pulse to the code-time converter of the first channel, the second pulse to the second channel converter, etc. Although, in principle, this sequence can be arbitrary.

The pulse from the control unit, which is received at the write input to the code-time converter of the first channel, records the code of the time interval that the sensor 4 codes already issued and starts the converter. The latter begins to form a given time interval. At the same time, a pulse from the output of the control unit enters the input of the OR element 5 and, after passing through it, enters the control input of the sensor 4 codes. At this pulse, the code sensor outputs the code of the second time interval, which is supplied to the inputs of the code-time converters in all channels. Second write pulse,

The time code of the second channel, coming from the control unit 2 to the input of the converters 6, writes this code to the converter and starts it. At the same time, passing through the element OR 5, it forces the sensor

5 codes give the code of the next time interval. This process is repeated until all channels are started. After that, the control unit 2 stops its operation. With this at the output of the sensor

0 codes sets the code for the next time interval for the code-time converter in any of the channels, the first to finish the formation of the time interval specified for it,

5 Further operation of the generator is as follows,

Converter 6 code-time (in any of the N channels), the first to finish the formation of a given time interval,

0 generates a pulse at the output (which determines the temporary position of the front of the output pulse), along the leading edge of which the divider 7 changes its state, i.e. forms the front of the output pulse. At the same time, the pulse from the output of the converter enters the code entry of the next time interval, which determines the time until the next edge of the output pulse in the specified channel, which is already present at its input. After writing this code, the code-time converter begins to form a predetermined time interval. At the same time, the pulse from the output of the code-time converter enters the OR element 5 and, passing through it, forces the sensor 4 codes to output the code of the next time interval. This code is for-. It is used for any code-time converter in any of the N channels, which is currently the first to finish the formation of the time interval specified for it. Subsequently, the processes in the generator are repeated as described

5 above. Thus, a series of pulses appear at the output of the code-time converter in any of the N channels, each of which determines the temporal position of the front-output pulse sequence. The pulses from the output of the converter b code-time are fed to the divider 7. The divider divides the received pulses into two. As a result, a predetermined (in the sense of time characteristics) pulse train is generated at its output. A similar procedure occurs in any of the N channels. As a result of the above actions, at the output of each channel, a predetermined sequence of pulses is generated.

The control unit 2 may be in the form of a multi-tap delay line. The time, the delay of each section is determined from the condition

t3 S tz5 + S, where ta5 is the delay time of the element OR 5;

tz4 - the delay time of the signal by the sensor 4 codes from the moment the signal arrives at

control input until a time slot code is output.

The code-time converter may be performed in any known manner.

(for example, Gitis EI, Piskulov EL, Analog-to-digital converters. M: Energo- izdat, 1981, p. 167). The divider can be made in the form of a trigger operating in counting mode. The code sensor may be

made on the basis of a storage device, both permanent and operational. The addresses of the storage device are enumerated by a counter, the counting input of which is connected to the control input of the code sensor.

(56) Copyright certificate of the USSR Mg 1084978.cl. H 03 K 3/64, 1984.

Claims (1)

The claims  MULTI-CHANNEL RECTANGULAR PULSE GENERATOR The N-pulse shaping channel and common reference frequency generator for all channels, the output of which is connected in each channel to the input of the code converter is the time, the output of which is connected to the write enable input of the code-time converter and the input of the divider, the outputs of which are the output buses corresponding channel, characterized in that, in order to simplify the device and increase its reliability, a control unit common to all N channels, a code sensor, an OR element (2N -1), the input of which is connected in each N-th ka-i, are introduced into it n Along with the output of the code-time converter, the input of the divider and the recording enable input of the code-converter is time, and the input 2N-ro of the OR element is connected in each Nth channel with an additional code-time converter enable input and the corresponding output of the control unit, and the output of the OR element is connected to the control input of the code sensor, the outputs of which are connected in each of the N channels respectively with the inputs of the code-time converters of the same name, and the input of the control unit is connected to the start bus. G 1-7-1