SU1425819A1 - Device for supplying pulsed power users - Google Patents

Abstract

The invention relates to a pulse technique and can be used to power devices using the energy of a charged storage capacitor. The purpose of the invention, the simplification of the device, is achieved by reducing the number of elements in the power section and increasing the efficiency by reducing the energy consumption in the ballast chains. During the charging process of the condenser ™ 17, the control system 10 unlocks

Description

(L

with

the next pair of inverter 1 thyristors, for example, 3 and 4, the current of the switching circuit from inductance 1 and capacitor 2 begins to flow through the relay 22. At the input of the relay it forms a signaling signal 1 that prepares the pulse driver 20 for operation. As a result of the oscillatory process, the current drops and when it reaches the level of triggering out the relay, the signal O is generated at the output. The pulse of the driver 20 unlocks the thyristor 18, which bypasses the winding 13 of the transformer 14. At the same time, a large inductance is excluded from the oscillatory circuit magnetizing the transformer 14, which goes into idle mode. At the same time, the process of current decay and subsequent shutdown of thyristors 3,4 and 18 is not delayed. Upon completion of this process, system 10 unlocks the next pair of thyristors 2 and 5, and the process repeats but it uses relays 23, pulse shaper 21 and thyristor 19. 1 sludge.

one

I

This invention relates to pulsed

technology and is designed to power devices using the energy of charged storage capacitors.

The purpose of the invention is to simplify the device by reducing the number of elements in the power section and increasing the efficiency by reducing the power consumption for ballast purposes. : The drawing shows a circuit diagram of the proposed device.

The device comprises a bridge inverter 1 on four-thyristors 2-5 with reverse diodes 6-9 and the control system 10. The diagonal of the alternating current of inverter 1 is connected in series with inductance 11, the capacitor 12 of the switching circuit and the primary winding 13 of the transformer 14, the secondary winding 15 of which is connected via a diode bridge 16 to the storage capacitor 17. The counter-parallel winding 13 includes the fifth and sixth thyristors 18 and 19, the control electrodes of which are connected to the outputs of the first and second pulse driver 20 and 21 pulses.

In series with the adjacent editors 4 and 5 of the opposite shoulders of inverter 1, the inputs of the first and second electronic relays 22 and 23 of the current are turned on, the outputs of which are connected to the inverse inputs of the drivers 20 and 21 of the pulses.

The device works as follows.

After switching on the device during the charging process of the capacitor 17, the control system 10 unlocks the next pair of inverter thyristors 1, 5, for example, thyristors 3 and 4. An increasing current of the half-wave of the sinusoid of the switching circuit from the inductance 11 and the capacitor 12 begins to flow through the relay 22. 22 (23) is set to the maximum possible value of the magnetizing current of the transformer 14, c. connection with which the output of the relay 22 is a signal of a logical unit,

preparing for work shaper 20 pulses. Giving it due to the oscillatory process, the current in the switching circuit of inductance 11 and condensation of mountain 12 decreases, and

 reaching its trigger threshold level at the output of relay 22, a logic zero signal appears. Shaper 20 produces a pulse at its output that unlocks the thyristor 18, which in turn shunts the primary winding 13 of the transformer 14. As a result, a large magnetization inductance is eliminated

 transformer 14, which by this time goes into idle mode, due to which the processes of current decline in the oscillating circuit to zero and the subsequent switching off of the thyristors

5 3.4 and 18 are not delayed.

Upon completion of the considered oscillation process, control system 10 unlocks the next pair

five

1A258I

thyristors 2 and 5, and the processes in the circuit are repeated in the same sequence as before, with the only difference that the electronic relay 23, the pulse shaper 21 and the thyristor 19 now participate in the work.

Claims (1)

Invention Formula A device for powering pulsed energy consumers, containing a bridge inverter on four thyristors with reverse diodes and a control system, the diagonal of the alternating current of which includes series-connected inductance and a switching circuit capacitor and the primary winding of the transformer five the winding of which is connected via a diode bridge to a storage capacitor, fifth and sixth thyristors, the control electrodes of which are connected to the outputs of the first and second pulse formers, respectively, characterized in that, in order to simplify and improve efficiency, the first and second electronic current relays, the inputs of which are connected in series with the adjacent thyristors of the opposite shoulders of the bridge inverter, and the outputs are connected to the inverse inputs of the first and second pulse shapers, respectively, at The fifth and sixth thyristors are connected in anti-parallel to the primary winding of the transformer.