SU788006A1

SU788006A1 - Device for shaping scanning voltage for electron-beam oscilloscope

Info

Publication number: SU788006A1
Application number: SU792709439A
Authority: SU
Inventors: Вадислав Иванович Котельников; Владислав Алексеевич Семенов; Владимир Александрович Головко; Владимир Леонидович Филатов
Original assignee: Краснодарский Ордена Трудового Красного Знамени Завод Электроизмерительных Приборов
Priority date: 1979-01-05
Filing date: 1979-01-05
Publication date: 1980-12-15

Description

Изобретение относитс к электроизмерительной технике и может быть использовано в широкополосных ОСЦИЛ-лографах .This invention relates to an electrical measuring technique and can be used in wideband OSCIL lenses.

Известен генератор развертки дл широкополосного осциллографа, содержащий усилитель, врем задающий конденсатор, разр дный транзистор, диод, триггер, операционный усилитель и компаратор 1 .A known sweep generator for a wideband oscilloscope containing an amplifier, a time specifying a capacitor, a discharge transistor, a diode, a trigger, an operational amplifier, and a comparator 1.

Е едостаток устройства - низка надежность, обусловленна его сложностью .The device has a low output - low reliability due to its complexity.

Наиболее близким к изобретению по технической сущности вл етс устройство формировани напр жени развертки дл электронно-лучевого осциллографа, содержащее генератор тока, ключевой элемент, источник питани и врем задающий конденсатор 2.The closest to the invention in its technical essence is a sweep voltage shaping device for an electron-beam oscilloscope comprising a current generator, a key element, a power source, and a time specifying a capacitor 2.

Недостатком этого устройства вл етс узкий диапазон его функциональных возможностей (оно не работает в ждушем режиме) . Работа устройства неустойчива из-за изменени уровн пробивного напр жени , врем восстановлени и врем задержки при запуске составл ют значительную часть длительности рабочего хода.The disadvantage of this device is a narrow range of its functionality (it does not work in idle mode). The operation of the device is unstable due to a change in the level of the breakdown voltage, the recovery time and the delay time at start-up constitute a significant part of the stroke duration.

Цель изобретени - расширение функциональных возможностей.The purpose of the invention is to expand the functionality.

Поставленна цель достигаетс тем, что устройство формировани напр жени развертки дл электронно-лучевого осциллографа, содержащее генератор тока, первый вход которого соединен с выходом основ10 ного источника питани , а выход-с первым выводом врем задающего конденсатора и выходом основного ключевого элемента, первый вход которого подключен к первому входу устройства , вторым входом св занного с обts щей шиной, с которой соединен второй вывод врем задающего конденсатора, снабжено повторителем напр жени , дополнительным источником питани и The goal is achieved by the fact that a sweep voltage shaping device for an electron-beam oscilloscope containing a current generator, the first input of which is connected to the output of the main power source, and the output to the first output of the driving capacitor and the output of the main key element, the first input of which connected to the first input of the device, the second input connected to the main bus, to which the second terminal is connected; the time of the driving capacitor is supplied with a voltage follower, an additional source m food and

20 дополнительным ключевым элементом, вход которого св зан с первым входом устройства, а вход-с выходом устройства и выходом повторител напр жени , вход которого соединен с выхо25 дом основного ключевого элемента, вторым входом подключенного к первому входу дополнительного источника питани , второй выход которого св зан с вторым входом генератора 20 an additional key element, the input of which is connected with the first input of the device, and the input is with the output of the device and the output of a voltage follower, the input of which is connected to the output of the main key element, the second input connected to the first input of an additional power source, the second output of which with the second input of the generator

Claims

30 current. The drawing shows a structural electrical circuit of the device. The device consists of the current generator 1, the main key element 2, the time of the driving capacitor 3, the voltage follower 4, the additional key element 5, the main power source 6 and the additional power source 7. The device works as follows. In the initial state, the key elements 2.5 operate in the power on mode, and the time capacitor 3 is discharged to a potential close to the potential of the common bus. The start pulse arrives at the first input of the main key element 2. The main key element 2 operating in the avalanche mode is punctured by the voltage of the additional power source 7 supplied to its second input. This happens with the help of an impact and output voltage of the repeater 4, which is fed to the first input of the main key element 2, through the additional key element 5. Connecting the time of the master capacitor 3 to the additional power source 7 causes efo to charge quickly up to damage n. which is determined by the level specified by the additional key element 5. The increasing voltage for the time of the master capacitor 3 through the repeater 4 is fed directly to the input of the additional key element 5. When At a given level of input voltage, the additional key element 5 opens and shunts the input of key element 2, blocking the trigger signal. The key element 2 closes off, after which the working stroke of the sweep begins, the duration of which is determined by the discharge time and the time of the driving capacitor 3 through the current generator 1. The invention allows to work in a standby mode, as well as to reduce the recovery time, due to the acceleration of the charging process, the time of the driving capacitor; to reduce the delay time at startup, due to the operation of key elements when starting up in the enable mode; Provide reliable synchronization sweep. Claims A sweep voltage shaping device for an electron beam oscilloscope comprising a current generator, the first input of which is connected to the output of the main power supply, and the output of the first output is the time of the driving capacitor and the output of the main key element, the first input of which is connected to the first input of the device, the second input connected to the common bus, to which the second terminal is connected, the time of the driving capacitor, characterized in that, in order to expand its functional capabilities, it is provided a voltage follower, an additional power source and an additional key element, the output of which is connected to the first input of the device, and the input to the output of the device and the output of the voltage follower i, the input of which is connected to the output of the main key element, the second input of the sub-IHHOro to the first an output of an additional power source, the second output of which is connected to the second input of the current generator. Sources of information taken into account during the examination 1. USSR author's certificate f 453635, cl. G 01 R 13/22, 1974,

2.Don konov V, P. Avalanche trans-i eistors and their use in pulse devices. M., Soviet Radio, 1973, p. 170 (prototype).