Shock excited pulse transformer

Details Shock excited pulse transformer Shock excited pulse transformer

1982-01-04

1983-10-11

Beha, Jr., William H.

Electrical transmission or interconnection systems

Wave form or wave shape determinative or pulse-producing...

With capacitor

323361, 328233, H02M 902

Patent

active

044094922

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The invention relates to high-voltage pulse power sources and, more particularly, to shock excited pulse transformers.


DESCRIPTION OF THE PRIOR ART

Known in the art is a shock excited pulse transformer comprising a charging unit, a capacitor bank, and primary and secondary windings. This transformer is capable of generating a pulse voltage whose amplitude can reach many hundreds of kilovolts and the repetition frequency is extremely high /cf., for example, USSR Inventor's Certificate No. 224,712/.
The self resonant frequency of such a transformer is, however, very low and, consequently, the high voltage pulse becomes longer, of the order of 10.sup.-6 -10.sup.-5 sec. This can be attributed to the fact that a higher transformation ratio, in other words a greater number of turns in the secondary winding, is required to provide high voltage in one stage. The inductance of the secondary winding increases, whereas the natural frequency goes down.
Also known in the art is a shock excited pulse transformer comprising a charger, primary and secondary windings, a capacitor and a switch mechanism fitted into the primary winding circuit. There is also an additional discharger in the secondary winding circuit, which reduces the time of connection of the load (acccelerating tube) and, consequently, makes for a shorter, up to 10.sup.-7 sec., duration of the high-voltage pulse (cf. the USSR Inventor's Certificate No. 304,895).
Unfortunately, the repetition frequency in such a transformer is limited because of the complicated frequency operation of the additional discharger rated for the entire high-voltage range.


SUMMARY OF THE INVENTION

The invention consists of providing a shock excited pulse transformer whose fairly simple circuitry can make for generation of short, up to 10.sup.-7 sec., high-voltage pulses with a high, up to 10.sup.3 Hz, repetition frequency of these pulses.
This object is achieved by a shock excited pulse transformer comprising a primary winding, a secondary winding, a capacitor, a charging device and a switch mechanism in the primary winding circuit; According to the invention, the transformer has at least two stages, each comprising a primary winding equipped with a capacitor and a switch mechanism and a secondary winding; The secondary windings are connected in series in all stages, except the last one, and coiled by two parallel and insulated from each other conductors which are in the first stage connected, one to the output of the charging device and the other to the ground, in all other stages capacitors of the primary winding circuits are inserted in parallel between these conductors.
Each stage, except the first one, should be, preferably, provided with an additional winding connected parallel to the switch mechanism and inductively coupled to the secondary winding of the preceding adjacent stage.
The shock excited pulse transformer made in accordance with this invention generates high-voltage pulses whose repetition frequency can go up to 10.sup.3 Hz and whose duration is about 10.sup.-7 seconds and is highly reliable, though the circuitry is rather simple.


BRIEF DESCRIPTION OF THE DRAWINGS

Given hereinbelow is a detailed description of embodiments of the present invention with reference to the accompanying drawings, wherein:
FIG. 1 is a schematic circuit diagram of a shock excited transformer having two stages, according to the invention; and
FIG. 2 is a schematic circuit diagram of a shock excited transformer having three stages, according to the invention.


DETAILED DESCRIPTION OF THE INVENTION

The embodiment shown in a pulse transformer of FIG. 1 comprises primary windings 1 and 2, secondary windings 3 and 4, a capacitor 5 and a switch mechanism 6 in the circuit of the primary winding 1, a capacitor 7 and a switch mechanism 8 in the circuit of the primary winding 2, and capacitors 9 and 10 in the circuit of the secondary winding 3 and of the secondary winding 4, respectively. The pulse transformer has a charging device for charging the capacitors 5 and

REFERENCES:
patent: 3343007 (1967-09-01), Massey
patent: 3450996 (1969-06-01), Abramyan et al.

Affiliated with

Also associated with

Rating

Shock excited pulse transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shock excited pulse transformer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock excited pulse transformer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1277486