SU1598128A1 - Voltage pulse generator - Google Patents

Abstract

The invention relates to a pulse technique and can be used to power vacuum arc plasma generators and ion sources. The aim of the invention is to increase reliability. The voltage pulse generator contains a capacitive energy store 1, a pulse transformer 2, the primary winding of which has an intermediate tap 3, a switching element 4, a transformer 5 with a saturable core, having a primary 6 and a secondary winding 7, a capacitor 8, a load 9, the first 10 and the second 11 power tires. The introduction of a transformer 5 makes it possible to increase the maximum allowable high-voltage surge voltage across the primary winding of the transformer 2, which leads to an increase in reliability. 1 il.

Description

The invention relates to a pulse technique and can be used to power vacuum-arc plasma generators and ion sources.

The aim of the invention is to increase reliability.

The drawing shows a circuit diagram of the device.

The voltage pulse generator contains a capacitive energy storage device 1, a pulse transformer 2, the primary winding of which has an intermediate branch 3, switching element 15 4, a transformer 5 with a saturable core, 'having primary 6 and secondary .7 windings, capacitor 8, load 9, which is a vacuum-arc gap, the first 20 10 and second 11 power buses.

The power bus 10 is connected to the first output of the drive 1 and through the switching element 4 is connected to the power bus 11 and the first terminal 25 of the primary winding of the pulse transformer 2, tap 3 of which is connected in series through the capacitor 8 and the transformer winding 6. 5 is connected to the second terminal of the drive 1. The winding 7 of the transformer 5 is connected between the second terminal of the drive 1 and the second terminal of the primary winding of the transformer 2, the secondary winding of which is connected to the loads .L · 5βΖ koi 9.

The voltage pulse generator 'works as follows.

After charging the capacitive storage _{4 for} 1 to the operating voltage, the switching element 4 opens, the storage 1 starts to discharge through the winding 6, the capacitor 8 and the intermediate terminal 3 to a part of the turns of the primary winding of the transformer 2, on the secondary winding of which a high voltage pulse is excited causing breakdown of the gap 9. After the breakdown of the gap 9, the current sharply increases in the secondary and part of the turns of the primary winding of the transformer 2, as a result of which the capacitor 8 is charged and the transformer is saturated

5. In this case, the inductive resistance of winding 7 decreases, Drive 1 continues to discharge to the entire primary winding of transformer 2 through winding 7. The discharge current in this case increases, the current through the load increases, and the voltage across the load decreases to the arc burning voltage.

Claims (1)

Claim A voltage pulse generator comprising a capacitive energy storage device, the first terminal of which is connected to the first power rail and, through a switching element, connects to the second power rail and the first terminal of the primary winding of the pulse transformer, an intermediate tap from which is connected to the first terminal of the capacitor, the load that is connected to secondary winding of a pulse transformer, characterized in that, in order to increase reliability, a transformer with a saturable core is introduced into it, the primary winding of which It is connected between the second terminal of the capacitor and the second terminal of the capacitive energy nakopytelya which is connected to the second terminal of the primary winding of the pulse transformer via the secondary winding of the transformer with a saturable core.