SU868985A1 - Magnetic pulse modulator - Google Patents

Description

The invention relates to pulsed technology and can be used to produce voltage and high-power pulses in order to modulate microwave and optical microwave and optical frequency generators in small-sized devices. A magnetic pulse modulator is known, comprising a square-shaped voltage generator, made on crystalline triodes and a saturated cs transformer, charging and filling chokes, a powered autotransformer connected in parallel with a satus choke, a second floating choke connected in series to a primary pulse winding transformer, forming a two-port network, connected in parallel with the saturating autotransformer and the load connected in parallel to the secondary circuit Pulse transformer wave The disadvantage of the known magnetic pulse modulator is low efficiency and reliability due to losses in the charged choke and controllable key, which operate in electric and thermal modes. Closest to the proposed pulse modulator, containing a pulse generator, connected to the input of a controllable key, a transformer consisting of a primary and two secondary windings, a linear choke connected to the power bus and to the first output of the primary winding of the saturable transformer, and the second through the first secondary winding of the saturating transformer - to the common bus, the first output, the second secondary winding of the on-board transformer via the storage capacitor of the first link and the second, through the accumulator, the condenser of the second stage of compression and the successively connected throttle of the second stage of compression, which forms the two-port and the primary winding of the pulse transformer, are connected to the common bus, and parallel to the SECONDARY winding of the pulse transformer is connected a load. The disadvantage of this magnetic pulse modulator lies in its low efficiency and reliability due to the losses in the charge choke and the control key.

 invention - increased efficiency and reliability.

The goal is achieved due to the fact that the magnetic pulse modulator containing a pulse generator connected to the control key input is a saturating transformer consisting of a primary and two secondary windings, a linear choke connected to the power supply cable and the first output winding terminal saturating transformer, and the second through the first secondary winding of the saturating transformer to the common bus, the first output of the second secondary winding of the saturating transformer through HSKSfTfffSffSfiSS condensate the first compression terminal and the second through the accumulator capacitor of the second compression link and parallel to the capacitor are connected in series the saturable choke of the second compression link forming a two-pole and the primary winding of the pulse transformer is connected to the common bus, parallel to the secondary winding of the pulse transformer the load is connected, an additional linear choke is inserted connected by the first output to the output of the controlled key, and the second to the second output of the primary winding of the saturating trans ormatora.

The drawing shows a functional diagram of a magnetic pulse modulator.

The magnetic pulse modulator contains a pulse generator 1, to the output of which a control key 2 is connected, a saturable transformer 3 consisting of a primary and two secondary windings, a storage capacitor 4 of the first compression circuit connected between the first output of the second secondary winding of the saturating transformer 3 and the common bus, the storage capacitor 5 of the second compression section, connected between the common bus and the BTopfcM output of the second secondary winding of the saturating transformer 3, which is connected in series with A common saturating throttle 6 of the second compression section, forming a two-port 7 and the primary winding of the pulse transformer 8, is connected to the common bus, and parallel to the secondary winding of the pulse transformer 8 is connected a load 9, a linear choke 10, the first output of which is connected to the power source and to the first output of the primary winding saturating transformer 3, and the second through the first secondary winding of saturating transformer 3 to the common bus, an additional linear choke 11 connected by the first end to the output of the controlled key 2, and the second to the second output

Noah's winding saturating transformer 3.

Magnetic pulse modulator operates as follows.

When a controlled key 2 of a clock pulse arrives at the input from a generator 1 of pulses, the key 2 opens, an additional linear choke 11 and the primary winding of the saturating transformer 3 begin to leak current, which causes a voltage drop across it. This voltage charges the storage capacitor 4 connected to the secondary winding of the saturable transformer 3

The mode of operation of the controlled key 2, the value of the voltage of the power source, the transformation ratio, are chosen such that the storage capacitor 4 during the open state of the controlled key 2 is fully charged to the required amplitude.

Under the action of the voltage on the storage capacitor 4, the saturating transformer 3 is poured, its inductive resistance drops sharply and the storage capacitor 4 is discharged to the storage capacitor 5 of the second magnetic link.

Under the action of the voltage of the storage capacitor 5, the converging-with transformer 3 leaves the saturation, thereby preventing the return discharge of the storage capacitor 5 to the storage capacitor 4, the choke 6 is saturated and the storage capacitor 5 discharges through the forming two-port 7 and the primary winding of the pulse transformer 8

As a result, a pulse of the required power and duration is formed, which with the required amplitude and polarity is applied to the load 9 connected to the secondary winding of the pulse transformer 8.

Under the influence of the magnetic field generated by the current flowing through the Line choke 10 through the bias winding of the saturable transformer 3, the magnetic state of the core returns to its initial state at the beginning of the next open ss of the controlled key.

The linear choke 10 serves to prevent the secondary winding of the saturating transformer 3 from being shunted by the internal resistance of the power source during the charging and discharging of the storage capacitors,

The magnitude of the inductance of the additional linear throttle 11 is found from the expression (.1) and (2).

and e (L

mmn

Max

Claims (1)

Claim A magnetic pulse modulator comprising a pulse generator connected to a controlled input,. a key, a saturable transformer consisting of a primary and two secondary windings, a linear inductor connected by a first terminal to the power bus and the first terminal of the primary winding of the saturating transformer, and a second through the first secondary winding of the saturable transformer to the common bus, the first. output of the second secondary winding of the saturable transformer through the storage capacitor of the first compression link, and the second through the storage capacitor of the second compression link and connected in series to the capacitor in series a saturable choke of the second compression link forming a two-terminal and primary winding of a pulse transformer is connected to a common bus, and a load is connected in parallel with the 2Q secondary winding of a pulse transformer, in order to increase efficiency and reliability, an additional linear choke connected to it is connected the first output to the output of the controlled key, and the second to the second output of the primary winding of the saturable transformer.