RU119934U1 - DEVICE FOR LOCALIZING POWERFUL SHORT ELECTROMAGNETIC PULSES - Google Patents

Abstract

A device for localizing powerful ultrashort electromagnetic pulses, containing a spark gap, characterized in that two lines of zener diodes, two counter-pulse generators, a delay line and an adder are additionally introduced, while the spark gap is made on two oppositely connected zener diodes and its output is connected to the input of the delay line and the inputs of both lines of zener diodes, the inputs of the adder are connected through the corresponding generators of the counter-pulse to the outputs of each of the lines of zener diodes and directly to the output of the delay line.

Description

The utility model relates to the field of computing and electro-radio engineering and can be used to protect cable inputs, signal inputs (outputs), data lines, as well as power supply circuits of electronic equipment (EO) from exposure to powerful ultrashort electromagnetic pulses (EMP).

Known gas filled spark gap, RF patent No. 2120153, class. H01J 17/02. A gas-filled spark gap containing at least one electrode located on the smaller base of the conical insulator, and a cuff, one surface of which is connected to the end surface of the conical insulator, characterized in that the cuff is made with a disk or flat annular portion, the other surface of the cuff is connected to the inner flat surface of the electrode, and the electrode, the conical insulator and the cuff are made of materials with similar thermal expansion coefficients.

For the prototype adopted gas-filled spark gap, RF patent No. 2096855, class. H01J 17/00, H01T 1/00. A gas-filled arrester containing a shell formed by a metal cylindrical body and an insulator in the form of a hollow truncated cone, two electrodes, one of which is located on the inner surface of one of the ends of the case, and the other on the smaller base of the conical insulator, the larger base of which is fixed from the other end of the case, moreover, the electrode located on the inner surface of one of the ends of the housing is made with a diameter of the working surface of at least 1.5 times larger than the diameter of the working surface ited electrode disposed on the conical insulator.

The main disadvantage of the analogue and the prototype is the high inertia of their operation and, as a result, the low efficiency of the protection function of cable entries, signal inputs (outputs), data lines and power supply circuits of the EO from the influence of electromagnetic radiation having a powerful high-frequency component and a steep leading edge (units dozens of nanoseconds), as well as the deterioration of the functional characteristics of these arresters with repeated exposure to electromagnetic radiation on the protected EO.

The purpose of the utility model is to ensure the stable operation of EE with repeated exposure to powerful ultrashort EMP.

This goal is achieved by the fact that in the localization device (UL) of powerful ultrashort EMRs, containing a spark gap made on two zener diodes that are differently connected, two zener diodes, two counter-pulse generators, a delay line and an adder are added to protect the EO from powerful ultrashort EMRs.

The functional diagram of the UL of powerful ultrashort EMR (hereinafter UL) is shown in Fig. 1 and contains: a spark gap (DD1) - 1, two zener diodes (DD2 and DD3) - 2 and 3, two counter-pulse generators (GPI-1 and GPI-2) - 4 and 5, the delay line (LZ) - 6, the adder - 7.

The principle of operation of the UL is as follows:

Under the influence of the EMF field, an electromotive force (EMF) is induced in the input circuit of the EO, which acts on the UL, while the arrester - 1 provides protection from the action of the leading front of the EMP by dumping its energy to the ground (the first stage of localization of the EMP).

However, a situation is possible in which part of the EMP energy will be supplied to the input of the EO. Therefore, in order to increase the efficiency of the UL under these conditions, two lines of n-zener diodes, 2 and 3, two counter-pulse generators, 4 and 5, a delay line, 6, and an adder, 7, are introduced into the protection circuit. Moreover, the EMR potential from the arrester output is 1 , depending on the polarity of the impulse, it will go to the input of the corresponding line of zener diodes - 2 and 3, which act as voltage limiters and gate devices that run counter-pulse generators. Moreover, the EMF from the output of the Zener diode line-2 will start the counter-pulse generator - 4, and the EMF from the output of the Zener diode line-3 will start the counter-pulse generator - 5. The voltage pulses of the corresponding polarities and levels from the counter-pulse generators are fed to the adder, where they are added to out of phase with the residual potential of the EMP coming to the adder from the output of the spark gap - 1 (the second stage of localization of the EMP).

The return of the UL to the initial state occurs automatically upon termination of the EMR (voltage drop to the operating level).

The effectiveness of the use of such a proposal will be to increase the stability of the operation of EO with repeated exposure to powerful ultrashort EMP.

Claims (1)

A device for localizing powerful ultrashort electromagnetic pulses containing a spark gap, characterized in that two zener diode arrays, two counter-pulse generators, a delay line and an adder are additionally introduced, while the spark gap is made on two zener diodes connected in different ways and its output is connected to the delay line input and the inputs of both zener diode lines, the adder inputs are connected through the corresponding counter-pulse generators to the outputs of each zener diode line and directly to the line output aderzhki.