SU522543A1 - Pulse generator - Google Patents

Description

(54) PULSE GENERATOR

This invention relates to radio engineering and can be used in high-power betatron electron injection devices.

A pulse generator is known that contains a source of charge voltage, in parallel with which the main thyristor and series-connected forming line and the primary winding of the pulse transformer are connected, to the extreme terminals of which the load is connected, a twist peaking circuit; pulse cutoff, connected between the intermediate and extreme terminals of the secondary winding of the pulse transformer and containing in series the connected cutting thyristor and diode to the junction point of which a quadruple voltage-dip formation is connected parallel to the diode, a resistor connected at one end to the source of charging voltage and a control device whose outputs are connected to control electrodes of the main and cut-off thyristors.

However, the well-known pulse collector

has a small slope of the pulse and low reliability.

The purpose of the invention is to increase the slope of the pulse and increase the reliability of the pulse generator.

For this, a second end resistor is connected to the input of a two-port network for the formation of a voltage drop, which is a filter;

0 and an additional diode is connected between its outputs and the source of charging voltage.

The drawing shows the structural scheme of the pulse generator.

five

The pulse generator contains a source of charging voltage 1, parallel to which is connected the main thyristor 2 and the series-connected forming line 3 and the primary winding of the pulse transformer 4, to the extreme terminals of the secondary winding of which is connected 5. The secondary and extreme leads of the secondary winding of the pulse transformer 4 included

& the chain of exacerbation of the cut-off pulse, containing

Conductor in series according to the connection, cutting off the typing circuit of the 6 p diode T, to the connection point of which, parallel to the diode 7, the output of the quadrupole 8 forming a voltage drop is connected. Resistor 9 is connected to the source with one end

1 is the common voltage, and the second end to the input of the quadrupole 8 is the formation of the voltage drop. Outputs device control. The laziness 1O is connected to the control electrodes of the main and shearing Tphistor

2 and 6.

. A diode 11 is turned on between the outputs of the quadrupole 8 for the formation of a voltage drop and the source 1 of the charging voltage.

The pulse generator works as follows.

In the initial state, both thyristors; 2 and 6 are switched off, the forming line 3 is charged, With the impulse applied to the control device 10 the thyristor 2 is injected. The forming line 3, discharging, forms in the load 5 a pulse with a front, which is determined mainly by the parameters of the forming line 3 n of the pulse transformer 4,

On the secondary winding kmpulsvo-z-o transformer 4 form1, there is a differential, for example. The four-pole circuit of 8 fermirovanie decay of the voltage and resistor 9 generates the same differential and the voltage drop at the output of the quadrupole formation of the decay HavtpHJKeni coincides with the voltage across the secondary winding of the transformer 4

Thus, during the formation of the pulse front, there are no downloads. There are no voltage jumps on the thyristor 6,:. The voltage on it does not exceed the butt-drop differential. At E1X) M, there is no aow; the locality of self-isolating inclusions;

By the time of the discharge circuit of the forming line 3 and the time delay and the impulse of the control device 10, 1P: e thyristor is turned on, which

together with the diode 7, it shunts a part of the secondary winding of the pulse transformer 4. As a result, in the load 5 there is a sharp voltage drop with a pulse-like surge. By adjusting the moment of switching on the thyristor 6 it is possible to achieve the maximum steepness of the cutoff of the pulse,.

The turn-on time of diode 11 is close to the duration of the pulse. As a result, its effect on the voltage form is negligible. It is necessary to eliminate overvoltage.

Claims (1)

Invention Formula A pulse generator containing a source of charge voltage Hfuc, in parallel with which is connected the main thyristor and the series-connected forming line and the primary winding of the pulse transformer, to the extreme terminals of the secondary winding of which the load is connected, the circuit of the edge of the cutoff of the cutoff pulse connected between the middle and extreme leads The secondary winding of the pulse transformer and containing sequentially-according to the connected cutting thyristor and diode, to the junction point of which is parallel to the diode The output of the quadrupole voltage drop forming, a resistor connected at one end to the source of the charging voltage, and an injector device whose outputs are connected to the control electrodes of the main and cutting thyristors, are different in that, in order to reduce the cutoff momentum, and increasing the reliability of the generator, the second end of the resistor is connected to the input of the quadrupole forming a voltage drop, which is a low-pass filter, and between its outputs and the charging source An auxiliary diode is connected.