SU1450086A1 - Voltage pulse generator - Google Patents

Abstract

The invention relates to the field of pulsed technology and can be used to power vacuum-arc ion sources, high-current electron guns and pulsed devices. The aim of the invention is to determine the efficiency of a voltage pulse generator by reducing energy intensity. To achieve this goal, a valve and an RC circuit with corresponding connections are introduced. The generator contains a capacitor / accumulator 1, a pulsed transformer 2 with an intermediate terminal 3 from the primary winding, switching element 4, valve 5, capacitor 6, resistor 7, load 8. By introducing a capacitive-voltage circuit and a valve, a voltage pulse is generated, the parameters of which change automatically when the resistance of the discharge gap changes, thus matching the generator with the load, which leads to a decrease in power consumption and an increase in the generator efficiency. 1 hp f-ly, 2 ill. o (l

Description

The invention relates to the field of pulse technology and can be used to power a vacuum arc

ION SOURCES, HIGH-PRECISION 5 electronic guns, for electroerosive processing and power supply of other pulse devices in various branches of technology.

The aim of the invention is to increase jq the efficiency of the voltage pulse generator by reducing the bone energy.

In FIG.

shows a schematic diagram of a voltage pulse generator; in FIG. 2 is a diagram of a generator.

The generator contains a capacitive heater 1, a pulse transformer LT) 2 with an intermediate terminal 3 from, a switching element, a valve 5, a capacitor 6 and a resistor 7 connected to an intermediate terminal 3 and between

(primary winding cop 4

R f

I have 1 and a valve

5.

The generator operates on a load of 8, which is a vacuum gap in which a pulsed arc discharge is excited. The drive 1 is charged from a power source 9.

In the generator circuit, instead of IT, an autotransformer 10 is switched on.

The pulse generator operates as follows.

After charging the drive 1 from the power supply 9 to the required voltage, the switching element 4 is closed and the voltage from the drive 1 is applied to a part of the turns of the primary IT winding through the capacitor 6, transforming at the output of the secondary winding into a high pulse

Voltages acting on the vacuum · The gap between the anode and cathode. As the drive 1 is discharged through the primary winding and capacitor 6, the voltage across the entire primary winding increases, but valve 5 prevents it from shorting to drive 1 ”After a breakdown between the cathode and the anode, an arc discharge is ignited, which leads to an increase in the current in the secondary winding, which causes an increase current in the turns of the primary winding. In this case, the capacitor 6 is quickly charged, the valve 5 opens and the discharge of the drive 1 begins over the entire primary IT winding. The voltage on the secondary winding decreases to the values necessary to maintain the arc discharge, and the current through it increases in accordance with the current of the arc discharge. After the drive is completely discharged, the switching element 4 opens and the drive 1 is recharged from the power supply 9 and is prepared to generate the next pulse.

When using an autotransformer together? IG (figure 2), the principle of operation of the generator remains the same, only after a breakdown of the gap and a decrease in voltage on its winding through the valve 5, the discharge of the drive directly to the load 8 occurs.

Claims (2)

Claim 1. A voltage pulse generator comprising a capacitive storage device, a pulse transformer and a switching element, characterized in that, in order to increase efficiency, a valve and an RC circuit are introduced into it, the primary winding of the pulse transformer is made with an intermediate output, the RC circuit is connected to an intermediate the output of the pulse transformer and the output of the drive, the valve is connected between the output of the drive and the primary winding of the pulse transformer. 2. The generator according to claim 1, wherein the pulse transformer is designed as an autotransformer in order to reduce the material _{consumption t} .