SU894837A1

SU894837A1 - Pulse current generator

Info

Publication number: SU894837A1
Application number: SU802866628A
Authority: SU
Inventors: Юрий Александрович Отрубянников; Анатолий Степанович Сафронов; Геннадий Лукьянович Чахлов
Priority date: 1980-01-08
Filing date: 1980-01-08
Publication date: 1981-12-30

Description

(54) ГЕНЕРАТОР ИМПУЛЬСОВ ТОКА(54) CURRENT PULSE GENERATOR

II

Изобретение относитс к радиотехнике и может быть использовано дл формировани квазитреугольных импульсов тока в индуктивных нагрузках , например дл получени магнитных полей в индукционных ускорител хThe invention relates to radio engineering and can be used to form quasi-triangular current pulses in inductive loads, for example, to obtain magnetic fields in induction accelerators.

Известен генератор импульсов тока, содержащий источник питани , колебательный контур, в котором между выводом обмотки-емкости и дросселем включены параллельно соединенные диод и конденсатор 1.A current pulse generator is known comprising a power source, an oscillating circuit, in which a parallel-connected diode and a capacitor 1 are connected between the output winding and capacitor.

Недостаток данного генератора повышенные габариты и вес. .The disadvantage of this generator is increased size and weight. .

Наиболее близким по технической сущности к предлагаемому устройству вл етс генератор импульсов тока, содержащий колебательный контур, выполненный в виде намагничивающей обмотки, витки которой одновременно служат обкладками конденсатора, первый положительный вывод обмотки-ем- .. кости через тиристор присоединен ко второму отрицательному выводуThe closest in technical essence to the proposed device is a current pulse generator comprising an oscillating circuit made in the form of a magnetizing winding, the turns of which simultaneously serve as capacitor plates, the first positive terminal of the winding capacitor is connected to the second negative terminal through the thyristor

обмотки-емкости, первый отрицательньш вьюод обмотки-емкости присоединен к аноду диода, катод которого соединен с первым вьшодом дроссел , второй вывод которого присоединен ко второму положительному вьшоду обмотки-емкости , отрицательный полюс источника посто нного напр жени соединен с первьм отрицательным выводом обмотки-емкости, а положительный the capacitor winding, the first negative winding capacitor pin is connected to the anode of the diode, the cathode of which is connected to the first output of the choke, the second terminal of which is connected to the second positive winding capacitance, the negative pole of the constant voltage source is connected to the first negative winding capacitance , and positive

10 полюс через тиристор соединен со вторым положительным выводом обмотки-емкости 2.10 pole through the thyristor is connected to the second positive terminal of the winding-capacitance 2.

Недостаток известного устройства - большие потери в колебательном The disadvantage of the known device is a large loss in the oscillatory

15 контуре, т.е. низка надежность.15 contour, i.e. low reliability

Цель изобретени - повышение надежности и сокращение габаритов и веса генератора импульсов тока.The purpose of the invention is to increase the reliability and reduce the size and weight of the current pulse generator.

Поставленна цель достигаетс The goal is achieved

Claims

20 in that the generator containing the winding capacitance, the first and second thyristors, the diode, the first lead of the winding capacitance through the first thyristor pod3 is connected to the second output coil of the capacitance, the third output of the winding-capacitance is connected to the anode of the diode, the anode of the second thyristor is connected to the positive pole the power supply unit additionally introduces a capacitor and a third thyristor, with one capacitor plate connected to the third winding-capacitor and the second to the anode of the third thyristor whose cathode is connected to the second terminal of the capacitor-capacitor and, the negative pole of the power source is connected to the cathode of the third thyristor, the cathode of the second thyristor is connected to the anode of the third thyristor, and the cathode of the Diode is directly connected to. The fourth terminal of the capacitive winding, in this case, the capacitor is made in the form of a winding capacitor. FIG. Figures 1a, b present the basic circuits of the current pulse generator; in fig. 2 a, b - equivalent winding-capacity circuits; in fig. 3 a, b are voltage and current diagrams. The current pulse generator contains an oscillating circuit made in the form of a magnetizing winding, the turns of which simultaneously serve as capacitor plates with the first negative terminal 1 of the winding-capacitor with the first positive output 2 of the winding-capacitance, with the second positive terminal of the 3-winding capacity, with second negative winding capacitor 4, thyristor 5, diode 6, thyristor 7, switching capacitor 8, thyristor 9, constant voltage source 10, generator 1 1 of starting thyristors. Generally winding capacity. is a homogeneous line, which can be considered as a homogeneous chain scheme with an infinite number of elementary units with finite values of R, L and C. The winding capacitance, performing the function of the switching capacitor to reduce its own inductance, has a high point value. FIG. Figure 3 shows the current in the magnetizing winding 12, the voltage on the magnetizing winding 13, the voltage on the plates of the capacitor winding-capacitor 14, the current of the switching capacitor 15, the voltage on the switching capacitor 16, the trigger pulse 17 of the thyristor 5, the starting pulse 18 of the thyristor 7 -, the triggering pulse 19 of the thyristor 9. The pulses 17-19 for starting the thyristors are produced by the generator 1I. In the initial state, the capacitor plates of the winding-capacitor and the switching capacitor are charged to the required voltage with polarity without brackets (Fig. |). At time t (Fig. 3), a triggering impulse arrives at the thyristor 5 and the discharge of the capacitor winding-capacitor to the magnetizing winding begins. In ... omen time 1 a trigger pulse is applied to the thyristor 7. The voltage of the switching capacitor 8 is applied to the thyristor 5 in the opposite direction. This voltage is greater than the voltage in the capacitor plates of the winding-capacitor, and causes the thyristor 5 to close. The magnetizing winding current flows through the windings and closes along the circuit of the switching capacitor 8 and the switching thyristor 7, while an intensive recharging of the switching capacitor 8 occurs. At time t, the voltage on the switching capacitor becomes equal to the voltage on the capacitor plates of the capacitor and the diode 6 opens. The magnetizing winding current is again closed through the capacitor winding capacitance, ensuring its charge with the same polarity. The commutation capacitor continues to recharge at this time. In the pause between the current pulses, the switching capacitor is recharged from a constant voltage source through the inductance of the magnetizing winding, and energy is introduced to compensate for the loss of energy per pulse. Thus, the application of the proposed device reduces the losses in the oscillatory circuit by providing a quasi-triangular mode of operation while reducing the size and weight of the current pulse generator. Claims I. Current pulse generator containing winding capacitance, first and second thyristors, diode, first diode of capacitive winding through the first thyristor connected to the second output winding of capacitance to the positive pole of the power source, characterized in that, in order to increase reliability and reduce dimensions and weight, a capacitor and a third thyristor are additionally introduced into it, one capacitor plate connected to the third output the capacitor winding and the second to the third thyristor anode, the cathode of which is connected to the second winding-capacitance type connected to the fourth winding capacitance. 2. The generator according to claim, characterized in that the capacitor is complete in the form of a winding-capacitor. Sources of information taken into account in the examination 1. USSR author's certificate №433625, cl. H 03 K 3/335, 11.09.72.

2. USSR author's certificate No. 345601, cl. H 03 E 3/335, 02.04.70.

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