SU454662A1 - Sync device - Google Patents

Description

one

The invention relates to radio engineering and can be used in measuring devices.

A synchronization device containing an amplifier, a delay circuit, an anti-coincidence logic circuit, a one-shot, a trigger and a shaping device are known, with one of the outputs of the amplifier connected via a one-shot with an anti-coincidence circuit and one of the trigger inputs, the output of which is connected to the single-input one-shot, and the delay circuit is connected to the second input of the anti-coincidence circuit.

However, the known device has insufficient dynamic range synchronization.

The aim of the invention is to expand the dynamic range of synchronization.

For this, the second output of the amplifier is connected to the input of the delay circuit, and the output of the anti-coincidence circuit is connected to the second input of the trigger.

The invention is illustrated in the drawings.

FIG. 1 shows a block diagram of the device; in fig. 2 - time diagrams.

The synchronization device contains an amplifier 1, a delay circuit 2, an anti-coincidence logic circuit 3, a one-shot 4, a trigger 5 and a shaping device 6.

The device works as follows.

The input pulse arriving at the input is amplified by the amplifier 1, delayed by the delay circuit 2 by a time equal to ti, and through the anti-coincidence circuit 3 flips the trigger 5 into a single state. The voltage drop resulting from tilting of the trigger 5 is differentiated, amplified in the device 6 and fed to the output 8 and to the launch of the single-oscillator 4, which creates a rectangular pulse, which through the circuit 3 prevents the passage of subsequent input pulses to the trigger input 5.

The input clock pulses fed to the input of the one-shot 4 provide the synchronization of the one-shot 4. The differentiated cut of the pulse of the one-shot 4 transfers the trigger 5 to its original state, and the potential output of the one-shot 4 removes the prohibition on the pulse to start trigger 5, which is transferred again to the single state delayed by time / i input pulse. In this way, the minimum time between resetting and triggering trigger 5 is set to t, which should be longer than recovery time for trigger 5 and anti-coincidence circuit 3, which means that trigger 5 is thrown into one by one state.

the same level of triggering signal from circuit 3, i.e., output stability

pulses in relation to the input synchronization pulses ne depends on the duration of the pulses of the one-shot 4.

FIG. 2, and the pulses are given on the input of the synchronizing device; pas figs. 2,6 - pulses PA the output of the delay circuit 2; FIG. 2.8 - trigger pulses 5; pas figs. 2, g - pulses of one-shot 4; pas figs. 2, d - pulses at the output of the device.

Subject invention

The synchronization device, the contained amplifier, the delay circuit, the anti-coincidence logic circuit, the single-shot, the trigger and the shaping device, and one of the amplifier outputs is connected through a single-vibration device with the anti-coincidence circuit and one of the trigger inputs, the output of which is connected to the additional input of the single-vibration device and the output of the delay circuit is connected to the second input of the anti-pancreatic circuit, characterized in that, in order to spread the dynamic range of the synchronization, the second output of the amplifier is connected to Odom delay circuit and the output circuit aptisovpadeny soedipep with the second input flip-flop.

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