SU932605A2

SU932605A2 - Sawtooth voltage generator

Info

Publication number: SU932605A2
Application number: SU802918609A
Authority: SU
Inventors: Николай Николаевич Калинчук
Original assignee: Львовский Ордена Ленина Политехнический Институт
Priority date: 1980-04-30
Filing date: 1980-04-30
Publication date: 1982-05-30

Description

II

Изобретение относитс к импульсной технике и может быть использовано , например, в качестве генератора развертки.The invention relates to a pulse technique and can be used, for example, as a sweep generator.

По основному авт.се, № 28539 известен генератор пилообразного напр жени , содержащий интегрирующий конденсатор , зар дно-разр дную цепь, состо щую из зар дного элемента, например резистора, и разр дного элемента с чЯ-образной вольтамперной характеристикой , например тиристора, между анодом и поджигающим электродом которого включен газоразр дный элемент ПJAccording to the basic autom. No. 28539, a sawtooth voltage generator is known, which contains an integrating capacitor, a charge-discharge circuit consisting of a charge element, for example, a resistor, and a discharge element with an S-shaped current-voltage characteristic, for example, a thyristor, between the anode and igniting electrode of which the gas discharge element ПJ is turned on

Недостатком устройства вл етс отсутствие регулировки амплитуды формируемого напр жени .The disadvantage of the device is the lack of adjustment of the amplitude of the voltage being formed.

Цель изобретени - обеспечение регулировки амплитуды формируемого напр жени .The purpose of the invention is to provide adjustment of the amplitude of the generated voltage.

Поставленна цель достигаетс тем, что в генератор пилообразного напр жени , по авт.св. № 428539 содержащий интегрирующий конденсатор и зар дно-разр дную цепь, состо щую из зар дного элемента и разр дного элемента с S-образной вольтамперной характеристикой, введены диод, дополнительный резистор и линейный сумматор, первый вход которого подключен к шине источника управл ющего напр жени , второй вход - к по тенциальной обкладке интегрирующего конденсатора, выход через дополнительный резистор подключен к входу разр дного элемента, который через диод подключен к потенциальной обкладке интегрирующего конденсатора.The goal is achieved by the fact that a sawtooth generator, auth. No. 428539 containing an integrating capacitor and a charge-discharge circuit consisting of a charge element and a discharge element with an S-shaped volt-ampere characteristic, a diode, an additional resistor and a linear adder, whose first input is connected to the control voltage source bus, are introduced , the second input to the potential plate of the integrating capacitor, the output through an additional resistor is connected to the input of the discharge element, which is connected via a diode to the potential plate of the integrating capacitor.

На чертеже приведена структурна электрическа схема устройства.The drawing shows a structural electrical circuit of the device.

Устройство содержит интегрирующий конденсатор 1, зар дный элемент 2, разр дный элемент 3, линейный сумматор 4, дополнительный резистор 5, диод 6.The device contains an integrating capacitor 1, a charging element 2, a discharge element 3, a linear adder 4, an additional resistor 5, a diode 6.

Claims

The device works as follows. At the initial time, bit element 3 and diode 6 are closed. The diode 6 is closed by an output negative voltage on the adder k supplied to its second summing input from the source of control voltage. Capacitor 1 is charged from the power source through the charging element.

2. Variable voltage of the capacitor 1 is added in the adder with a control voltage - Ug, arriving at its second input, and, through an additional resistor 5, is applied to the discharge element 3 When the output voltage is reached (Totalizer equal to the turn-on voltage; When the discharge element is turned on, the voltage drops sharply and as soon as it becomes less than the voltage on the capacitor 1, diode 6 opens. Through a low resistance of the open diode and the onset of the discharge element The capacitor 1 is quickly discharged. After the capacitor 1 is discharged, the discharge element closes and the device returns to its initial state. The next period of sawtooth pulse begins to form. The magnitude of the voltage of the capacitor 1 is determined by the dependence of the interchange voltage Up the second input of the linear voltage adder from zero to Ug, the amplitude of the output sawtooth voltage and on the capacitor 1 takes values from zero. Claims of invention Sawtooth generator on auth.St. No. 428539, characterized in that, in order to adjust the amplitude of the generated voltage, an additional resistor, a diode and a linear adder, the first input of which is connected to the control voltage source bus, the second input is connected to the potential lining of the integrating capacitor , the output through an additional resistor is connected to the input of the discharge element, which through a diode is connected to the potential plate of the integrating capacitor. Sources of information taken into account in the examination 1, USSR Copyright Certificate No. 428539, cl. H 03 K 4/86, 07.27.71.

6

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