SU479230A1 - Pulse train with adjustable time parameters - Google Patents

Description

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The invention relates to a pulse technique and can be used as a generator of a series of pulses with adjustable number of pulses n in a series, the duration of a series and the period of a series.

The known generator of a series of pulses, containing the master pulse generator, a pulse generator of the duration of the series and the scheme "NOT.

A significant disadvantage of this generator is the limited limit of adjustment of the time parameters of a series of pulses.

The aim of the invention is to extend the limits of the adjustment of the time parameters of a series of pulses.

To do this, a pulse duration duration is additionally introduced into the pulse train generator with adjustable time parameters, the input of which is connected to the output of the master pulse generator, and the output of the input pulse duration generator of the series followed by the output pulse is connected to the output of the pulse and pulse generator.

Functional diagram of the generator shown in the drawing.

The generator contains a master pulse generator 1, the output of which is connected to the input of the generator 2 by a pulse of the duration of the series following the series and with the input of the generator of the duration of the series. The output of the generator ci pulse duration of the series is connected to the input of the circuit "rtt 4, the output of the circuit" iib 4 is connected to the output of the generator 2 pulses of the duration of the series following sequence

and to the input of the master oscillator 1 pulses.

i The generator is as follows.

In the initial state, the generator 1 is oostoichny and at the output of the generators 2 and 3 there is

signal "O. At the output of the circuit "NOT 4 when

This dollars-sen be the signal "1, however, due to the combined outputs of the circuit" NOT 4 and generator 2, the output of the latter bypasses the output of the circuit "NOT 4 and it also has the resulting signal" O. At the time of submission

voltage supply to generator 1, the very first pulse from the series triggers generators 2 and 3. The output of generator 2 must be a signal "1, but the output of the circuit is" NOT for a time equal to the duration of the series, there is a signal "O which shunts the output generator 2. In the feedback circuit, the resulting signal is also equal to "O", which is the enable signal of generator 1. After a time equal to the duration of the series, generator 3 returns to its initial state and at its output the signal becomes equal to "O. At the output of the circuit "NOT and generator 2, the resultant signal becomes equal to" 1 and prohibits the operation of generator 1. After the duration of the impulse determining the follow-up period of the series, generator 2 returns to its initial state and the resulting signal appears in the feedback circuit "Oh, generator 1 is activated and the process of forming a new series of pulses is repeated.

Thus, the proposed generator of a series of pulses allows the time parameters of a series of pulses to be adjusted within wide limits.

Subject invention

A time series pulse generator with adjustable time parameters, containing a master pulse generator, the output of which is connected via the pulse duration generator to the input of the NOT circuit, characterized in that, in order to extend the control limits of the time parameters of the pulse train, series, the input of which is connected to the output of the master pulse generator, and the output of the input pulse generator for the following period of the series is connected to the output m circuit "and not to the input of the master oscillator pulses.