SU400012A1 - DEVICE FOR PULS GENERATION - Google Patents

Description

one

The invention relates to automation and can be used in digital-analogue computing devices and in specifying software automation devices.

A known device for generating bursts of pulses, containing a control clock generator, whose input is connected to the trigger output, and an output connected to the counting input of a binary counter, which specifies the device, the trigger pulse generator, has low reliability.

The purpose of the invention is to increase the reliability of the device for generating pulse bursts.

To do this, RC-chains and delay lines are additionally entered, the output of the generator of trigger pulses is connected via a delay line to one of the trigger inputs and to the input of the driver, whose outputs are connected to the installation inputs of the unit of each bit of the binary counter, the output of which is through The chain is connected to the second input of the aforementioned trigger.

The drawing shows a block diagram of the proposed device.

The device contains a control generator of 1 clock pulses, the input of which is connected to the output of trigger 2, and the output is connected to the counting input of binary counter 3,

driver 4, a generator of 5 starting impulses, an RC-chain 6 and a delay line 7. In the initial state, trigger 2 is

in the state in which the clock pulse generator 1 is turned off. The input signal from generator 5 to the control input of the driver 4 from driver 4 is issued (or is received) an inverting binary code n-1, where n is the number of pulses in the bursts, into the binary counter 3. After entering the inverted binary code of the number n -1 from driver 4 to binary counter 3, the signal from generator 5 through line 7 is delayed to the input of trigger 2, which is transferred to the operating state and starts generator 1 of clock pulses. From the output of the generator 1 clock pulses impulses arrive at

the output 8 of the device and the counting input of the binary counter 3, which counts up to overflow and the next impulse arriving at its counting input, is reset to the zero state. At the moment of transition of the counter from

single state to zero with

/ C-chain 6 a short pulse is generated,

which arrives at the second input of trigger 2

and sets it back to its original state.

Number of impulses arriving at counting

binary counter 3 input over time from start

his work to reset to zero, equal to the number of specified pulses in a pack. The beginning of the next series is determined by the supply of a new trigger signal from generator 5. This is achieved by adjusting the duty cycle of packs for a given number of pulses in a pack.

Subject invention

A device for generating bursts of pulses, containing a controlling clock pulse generator, whose input is connected to the trigger output, and an output connected to a binary counter counting input, setting device, trigger pulse generator, characterized in that, in order to increase reliability, it is additionally entered ./ C-chain and delay lines, the trigger generator output being connected via a delay line to one of the trigger inputs and to the input of the driver, whose outputs are connected to

the inputs of the unit installation of each bit of the binary counter, the output of which is connected via the / C-chain to the second input of the above-mentioned trigger.