SU834533A1 - Device for electron beam oscilliscope sweep synchronization control and forming - Google Patents

Description

The device consists of an amplifier 1, a control unit 2 formars atepem syncs 1pulses, a generator 3 synchromes, a generator 4 controls a sweep generator, a sweep generator 5, an adder 6, a discriminator 7 and a reversing 8 step voltage generator.

The device works as follows.

The input of amplifier 1 receives a perfect clock signal. The amplified signal is fed to the input of the imaging unit 3, but the sync pulses at its output appear only under the condition that the output voltages of the amplifier 1 and the adder 6 are equal.

4 control sweep generator

 in the absence of sync pulses, there is a positive voltage level. In this case, the sweep generator 5 operates in the auto1; generation mode, and the 8-step voltage generator operates in the search mode. The voltage controlling the reverse of the generator 8 is zero. The output incremental stepwise voltage of the generator 8 is algebraically summed in the adder 6 with the constant output voltage of the driver control unit 2 of the sync pulse. When the output voltages of the amplifier 1 and the adder 6 are equal, the output of the driver 3 causes the clock pulses to reach the zero state. In this case, the generator

A 5 sweep goes into standby mode and is triggered by clock pulses from the output of shaper 3, and the generator of the 8 step voltage is stopped in the state in which the clock pulses have passed. With an increase in voltage, at the output of block 2, the discriminator 7 positive level turns on the reverse of the generator 8. If, after this, the voltage at the output of the adder 6 exceeds the maximum value of the voltage at the output of amplifier 1,

then the sync pulses at the output of the imaging unit 3 disappear and the generator 8, after the delay time determined by the parameters of the sweep generator control unit 4, passes back to search mode. However, in this case it generates a falling step voltage until it is synchronized from approximately the same level of the synchronizing signal, which immediately preceded the synchronization failure. When the voltage decreases at the output of the control unit 2 by the sync pulse generator (until the sync pulses disappear), the output of the two criminator 7 again shows a zero voltage level and the initial synchronization process repeats.

The present invention extends the dynamic and frequency ranges of synchronization.

Claims (1)

Invention Formula A synchronization, control, and sweep shaping device for an electron-beam oscilloscope, containing an amplifier, whose input is connected to a clock signal bus, and the output to the first input of the clock generator, whose output is connected to the input of the scan generator generator and the first input of the scan generator, second the input of the unwinding generator control unit connected to the output, and the control unit of the synchronization pulse shaper, characterized in that, in order to reduce the range dependence with synchronization from the frequency spectrum of a synchronized signal and destabilizing factors, it is equipped with an adder, a discriminator and a reversible generator of the step voltage, the first input / of which is connected to the output of the scan generator control unit, the second input with the output of the discriminator, and the output of the first input of the adder, whose output is connected to the second input of the sync pulse generator, and the second input - to the sync pulse and the output of the sync pulse driver control unit. Details of the information taken into account during the examination 1. Description of the 7B71 scanner of the company Tektroniks, USA, 1978,