SU1534749A1 - High voltage shaper of pulses of special shape - Google Patents

Abstract

The invention relates to a pulse technique and can be used in radar transmitting devices. The aim of the invention is to increase the temporal stability of the working pulse at the top of the pedestal pulse — by introducing into the high-voltage pulse generator of the power source 10, a capacitive energy storage 11, a blocking generator 18, a voltage divider 13, a comparator 14, a reference voltage source 15, an amplifier 16 and the capacitor 17. The high-voltage pulse shaper also contains a power supply 5, a forming line 6, a switching element 1, a load 12, a pulse transformer 19, a control bus 2, a charge th chain comprising a charging choke 4 and a charging diode 3. 2 yl.

Description

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The invention relates to a pulse technique and can be used in radar transmitting devices.

The aim of the invention is to increase the temporal stability of the working Impulse at the top of the pedestal impulse.

FIG. 1 shows a basic | 1a electrical device diagram;

2 time diagrams eg 1a fig.

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The high-voltage pulse shaper of a special form contains a switching element 1, a bus 2 control pulses, a charging diode 3, a charging choke 4, a source 5 of Litani, forming line 6, a pulse transformer 7 with a primary and a secondary 9 windings, an additional power source 10, capacitive energy storage 11, load 12, voltage divider 13, comparator 14, reference voltage source 15, amplifier 16, capacitor 17 and blocking generator 18, the pulse transformer of the top 19 blocking generator from the first 20, Tue swarm 21 and third windings 22, electronic lamp 23, stripped tenbHbift capacitor 24, the first 25, 26 PTOP, the third resistor 27 and bias source 28.

The blocking generator also contains a power bus 29, a first 30, a second 31 output pins and a control input 32.

The positive pole of the power source 5 is connected via a series-connected choke 4 and a diode 3 connected to the first output of the switching element 1, the second output of which is connected to the common bus and the first output of the load 12, and the control input to the bus 2 of the control pulses. Parallel to the switching element 1 are connected in series the lines 6 and the winding 8 of the transformer 7. The negative pole of the power source 5 is connected to the common bus And the first terminal of the winding 9 of the transformer 7, the second terminal of which is connected to the first output terminal 30 of the blocking generator 18. Positive pole of the JO source The power supply is connected to the power supply bus 29 by a blocking generator, and through the storage device 1 is connected to the common bus and the negative pole of the power supply source 10. Output pin

0

five

five

31, a blocking generator 18 is connected to a second output of load 12, in parallel of which voltage divider 13 is turned on. The output of the latter is connected to the first input of the comparator 14, the second input of which is connected to the source 15 of the reference voltage, and the output of the comparator 14 is connected to the control input 32 of the blocking generator 18 through a serially connected amplifier 16 and a capacitor 17.

In the blocking generator 18, the power bus 29 is connected via the winding 20 to the anode of the electron tube 23, the cathode of which is connected to the common bus, and the grid is connected through a resistor 26 to the common bus, through a resistor 27 with a negative-bias source 28 o. through series-connected resistor 25, capacitor 24 and winding 21 - with a common bus.

The grid of the lamp 23 is also connected to the control input 32 of the blocking generator 18. The terminals of the winding 22 are connected to the first 30 and second 31 output terminals of the blocking generator 18, respectively.

High-voltage driver-t pulses of a special form works as follows.

At the initial time, sources 5, 10, and 28 have a voltage, a forming discharge line 6, a switching element 1 and a lamp 23 are closed, there is no voltage at load 12, and zero output is present at the output of amplifier 16.

In the period between pulses from the control pulse bus 2, a resonant charge occurs on line 6 from the power source 5 to its double value via choke 4, charging diode 3 and 5, winding 8 of the pulse transformer 7 (Fig. 2,6). At the moment of arrival of the pulse from the bus 2 of control pulses to the control input of the switching element 1 (Fig. 2, a), the latter discharges line 6 to the winding 8 of the transformer 7, on whose winding 9 a bell-shaped pulse is formed (Fig. 2, e) . This voltage pulse is applied to load 12 and voltage divider 13. From the output of the voltage divider 13, a voltage pulse proportional to the modulating pulse is applied to the first input of the comparator 14, and at 0

five

0

0

five

there is no reference voltage from source 15 of the reference voltage. At the time of coincidence of these voltages (it is set at 0.8 amplitude of the modulating pulse), a positive polarity pulse is generated at the output of the comparator 14, which is amplified by the amplifier 16, differentiated by the capacitor 17 and, adding to the voltage of the bias source 28, takes the form depicted in fig.2zh. The lamp 23 opens with its front edge. In a circuit consisting of a transformer 19, a lamp 23 of a working pulse, a capacitor 24 and resistors 25 and 26, a blocking process occurs, as a result of which a working pulse is formed on the winding 22 of the transformer 19. The duration of this pulse is determined by the capacitance of the capacitor 24, the resistance of the resistor 25 and 26, and the parameters of the transformer 19 (Fig. 2, g). Since the windings 9 and 22 of transformers 7 and 19 are connected in series, the pedestal and working pulses are summed, and a modulating pulse is applied to the load (Fig.,.

Claims (1)

Invention Formula A high-voltage pulse-shaper of a special form, containing a power source, the positive pole of which is connected to the first output of the forming line and the first output of the switching element through the charging circuit, the second output of which is connected to the first load output, the common bus, negative five 0 the source of the power source and the first terminals of the primary and secondary windings of the pulse transformer, and the control input of the switching element is connected to the control pulse bus, characterized in that, in order to increase the time stability of the working pulse on top of the pedestal pulse, an additional power source is introduced into it, capacitive energy storage, blocking generator, voltage divider, comparator, source (reference voltage, amplifier and capacitor, and the charging circuit contains in series with a charge choke and a charge diode, the second output of the forming line is connected to the second output of the primary winding of the pulse transformer, the capacitive energy storage device is connected in parallel to an additional power source, the negative pole of which is connected to the common bus, and the positive pole is connected to the power bus generator, the first output of which is connected to the second output The Q secondary winding of the pulse transformer, the second output view is connected to the second output of the load, in parallel to which a voltage divider is connected, the output of which is connected to the first input of the comparator, the second input of the comparator is connected to the source of the reference voltage, and its output is through a series-connected amplifier and capacitor 0 is connected to the control input of the block generator. ) L