SU1426405A1 - Pilse power source - Google Patents

Abstract

The invention relates to a pulse technique and can be used in installations for powering high-power lasers for various purposes. retention allows to simplify the device and reduce its total dimensions. This is achieved by introducing an additional capacitor, a second and a second diode, a first and a second resistor into the device, as well as an additional pulse transformer with a second winding. The power source contains a charging transistor 1, a pulse transformer, a torus 2, a constant voltage source 3, the first 4, the second 5 and the third 6 diodes, the thyristor switch 7, the charging diode 8, the first capacitor 9, the storage capacitor 10, additional capacitor 11, first 12 and second 20 control pulses, first 13, second 14 and third 15 resistors, powerful switch 16, load 17 consisting of laser 18 and charging resistor 19. Charging voltage on a capacitor 11 several times the voltage of the power supply source 3, which provides Is the energy stored in the primary winding of the transformer 2. 1 Il. (L

Description

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1426405

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It can be used in power supply systems for powerful laser applications.

The aim of the invention is to simplify and reduce weight and size: indicators.

In the drawing, the electrical circuit of the device is fundamental.

The switching power supply contains a charging transistor 1, an impulse transformer 2, a source 3 of a constant voltage, a first diode 4 a second diode 5, a third diode, a thyristor switch 1 a charging diode 8j the first capacitor 9, a storage capacitor 10 additional Koi-capacitor, And, the first bus 12 control - YUSCH1GH pulses, the first resistor 13j, the second resistor 14, the third resistor

15, a powerful switch 16j, a load 17, consisting of a laser 18 and a charging resistor 19, the second bus 20 of control pulses.

The positive pole of source 3 is connected to the beginning of the primary winding and; -pulse transformer 7. The end of which is connected to the anode of diode 4 and the collector of transistor 1, the base of which is connected to the first bus 12 equalizing pulses from the cathode of diode 4 through a capacitor 9 is connected to a common a goyny, an emitter of transistor 1 and a cable T: HOUSE of a thyristor switch 7J and through a resistor 13 it is connected to the anode of diode 5. The cathode of diode 5 is connected to the beginning of an additional winding of transformer 2, the end of which is under the cable to the anode of the thyristor switch 7. Through condensers cathode of diode 11 is connected to the common bus and the negative pole of source 3 of a constant voltage. A second pilot pulse 20 is connected to the control electrode of the T1-fistor KOt-p-gutator. The end of the second winding of the transformer 2 is connected to the anode of diode 8 and the cathode of diode 6, the anode of which is connected to the control cable of the powerful switch 16, and tie-. The cutout resistor 15 is connected to the onset of the secondary winding of transformer 2 of the common pgiye and the first electrode of switch 16. The second electrode of switch 16 is connected to the cathode of diode 3 and connected in series to source 17 and capacitor 10 of sub-pen to common tnt.

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The pulsed power source operates as follows.

When a wj-down-limiting pulse arrives from the first bus of 12 sending pulses to the base of transistor 1, the latter opens and a current begins to flow through the perpendicular winding of transformer 2, accumulating electromagnetic energy in it. At the end of the impulse control, the polarity of the voltage on the windings of transformer 2 is reversed, and from the collector of transistor 1 through diodes 4.5 and resistor 13 current flows to an electrical capacitor 9 and 11, and in the secondary winding of the transformer 2 A current flows through the diode 8 and the resistor 17 to charge-genset 10. The process repeats repeatedly to provide amplitudes of the voltages on the capacitors 11 and 10 of the required pulse coming from the second pin 20 of the control pulses starts the thyristor switch 7, turning to mmutatora 7 through the secondary winding 2 of the transformer due to the discharge of capacitors 11 and 9, surge current flows, in the WTO

 A high voltage impulse of reverse polarity with respect to the charging voltage of capacitor 10 arises in a critical obut-yutka and, applied through diode 6 to the control electrode of the high-power switch 16, ensures its ignition. A storage capacitor 10 is discharged through the load 17c.

The frequency of the transistor 1 should be higher than the repetition frequency of the start of the powerful switch 16. The charging voltage on the capacitor 11 should be several times greater than the voltage of the source 3 constant voltage, which is provided by the energy stored in the primary winding of the transformer 2 about

Claims (1)

Invention Formula A pulsed source of power containing a source of a constant source - the positive pole of which is connected to the beginning of the primary winding of a pulse transformer, the end of which is connected to the anode of the first diode and the first electrode of the transistor key, the control input of which is connected