RU67360U1 - HIGH VOLTAGE PULSE GENERATOR - Google Patents

Abstract

The generator relates to high-voltage pulse technology, and in particular to the field of generation with a high frequency of powerful pulses with a short front based on high-voltage pulse transformers. The high-voltage pulse generator contains a low-voltage power source (1), a capacitive pulse source (2), a high-voltage pulse transformer with a saturable core (5), made in the form of a ferrite ring, on which the secondary winding (6) is wound, and directly on the secondary winding ( 6) the primary winding (3) is wound, made of several parallel branches. The beginnings of all parallel branches of the primary winding (3) of the high-voltage pulse transformer are connected to one of the plates of the capacitive pulse source (2), and the ends of all parallel branches of this winding through the switching element (4) are connected to the other plate of the capacitive pulse source. Upon reaching the maximum voltage at the high voltage capacitors (7) and (8), the core (5) is saturated. The cutting magnetic inductor (10) is used to charge the high voltage capacitor (8). Through the secondary winding (6), the high-voltage capacitor (7) is recharged, resulting in a doubling of the voltage. Double voltage is applied to the switching magnetic inductor (9) and, at the time of saturation of its core, the pulse enters the load (11).

Description

The utility model relates to high-voltage pulse technology, namely, to the generation of high-frequency pulses with a high frequency at a high frequency, based on high-voltage pulse transformers, and can be used in radar systems, for excitation of quantum generators, in installations for the production of ozone and other high-voltage pulse technologies in which high power pulses with a short edge are required.

Known magnetic pulse generator for generating high voltage pulses with a short front (RF patent No. 2189695, IPC 7 H03K / 53, publ. September 20, 2000) containing a power source between the terminals of which are connected, connected in series, charging and storage elements. The storage element is connected via a key to the primary winding of a saturable transformer, its secondary winding is shunted by a second capacitive storage and connected in series through a saturable inductor and the primary winding of a pulse transformer to the first capacitive storage, and a load is connected to the output winding of a pulse transformer. In this case, the saturable inductor has one coil, which is located inside the core and coaxially to its axis, the turns of the primary winding of the pulse transformer are wound on the core of the saturable inductor, and the first capacitive storage is connected in series between the terminals of the turns of the saturable inductor and the primary winding of the pulse transformer, the first and second capacitive drives are divided into several identical capacitive drives, respectively.

The main disadvantage of the known generator is the relatively low reliability of its operation, associated with the complexity of the design, which

consists in the fact that it contains two high-voltage pulse transformers, one of which acts as a choke, and energy is transferred in each pulse transformer during energy transfer. In addition, the first and second capacitive storage devices (figure 1) consist of several (two) capacitors, which also increases energy loss.

Closest to the proposed one is the high-voltage pulse generator selected for the prototype (RF patent No. 2167491, IPC 7 Н03К 3/45; Н03К 3/02; Н03К 4/02; publ. 05.20.2001), containing a pulse source connected in series, pulse a core-core transformer in which the core is made with a longitudinal hole through which a conductor is passed connecting the pulse source to the transformer primary winding, and the secondary winding is connected to the load, the primary winding being made of several parallel branches wave, to each of which are connected the capacitors of the pulse source. In addition, the secondary winding of the pulse transformer also has several branches, each of which is connected to its load, and the capacitor of the pulse source is divided into several identical capacitors.

The main disadvantages of this generator are the relatively complex design, the need and complexity of accurate selection of capacities and inductances of the transformer primary winding, as well as the relatively large dimensions due to the fact that the primary and secondary windings are divided into several branches each, and the pulse source capacitor consists of several capacitors.

The technical results of the proposed solution are to simplify the design of the generator, reduce the dimensions of the generator and simplify the selection of capacities and inductances associated with the primary winding of the transformer.

The specified technical result is achieved in that the high-voltage pulse generator, which includes series-connected

a capacitive pulse source, a high-voltage pulse transformer with a saturable core equipped with primary and secondary windings, the primary winding made of several parallel branches, and a load connected to the secondary winding, according to the proposed solution, the saturated core of the high-voltage pulse transformer is made in the form of a ferrite ring directly on which is wound the secondary winding of a high-voltage pulse transformer, and directly to the secondary winding at its primary winding, the beginning of all the parallel branches of the primary winding of high voltage pulse transformer connected to one of electrodes of the capacitive pulse source, and the ends of the parallel branches of this winding are connected via the switching element to the other plate of the capacitive pulse source.

Figure 1 shows a diagram of the proposed high-voltage pulse generator. The generator contains a low-voltage power supply 1 (600 V), between the terminals of which a capacitive pulse source 2 (0.47 μF) and a primary winding of a high-voltage pulse transformer 3 are connected in series. This primary winding 3 is made of several parallel branches (in figure 1 of three branches). The capacitive pulse source 2 is switched to the primary winding 3 through a switching element 4 mounted parallel to the low-voltage power supply 1. The high-voltage pulse transformer contains a saturating core 5 made in the form of a ferrite ring directly onto which the secondary winding of the high-voltage pulse transformer 6 is wound. the winding 6 is wound primary winding 3. Directly to the secondary winding 6 is connected to a high voltage capacitor 7. To capacitor 7 and 8 are connected to a high voltage capacitor of circuit Fitch. In a real design, the capacitance of each of these capacitors is 330 pF. In series with the high-voltage capacitors 7 and 8, a switching magnetic inductor 9 is turned on, and parallel to them

includes a cutting magnetic inductor 10 and a load 11. The load is an electrode system for producing ozone.

The high voltage pulse generator operates as follows. The low-voltage power supply 1 charges the capacitive pulse source 2, which, through the switching element 4, is discharged to the primary winding 3 of the high-voltage pulse transformer. In this case, the high voltage capacitors 7 and 8 are charged in parallel. Upon reaching the maximum voltage on the high-voltage capacitors 7 and 8, the core 5 of the high-voltage pulse transformer is saturated. Through the secondary winding 6 of the high-voltage pulse transformer, the high-voltage capacitance 7 is recharged, resulting in a doubling of the voltage. Double voltage is applied to the switching magnetic inductor 9, at the time of saturation of the core of the switching magnetic inductor 9, the pulse enters the load 11.

As a result of testing the generator under consideration, pulses with an amplitude of 30 kV were obtained, with a front of 18 ns and a total duration (base) of 36 ns, with a pulse repetition rate of 1 kHz.

Claims (1)

A high-voltage pulse generator, including a capacitive pulse source connected in series, a high-voltage pulse transformer with a saturable core equipped with primary and secondary windings, the primary winding made of several parallel branches, and a load connected to the secondary winding, characterized in that the saturated core of the high-voltage pulse the transformer is made in the form of a ferrite ring, directly on which the secondary winding of the high voltage and pulse transformer, and its primary winding is wound directly on the secondary winding, and the beginnings of all parallel branches of the primary winding of the high voltage pulse transformer are connected to one of the plates of the capacitive pulse source, and the ends of all parallel branches of this winding are connected to the other plate of the capacitive pulse source.