RU50354U1 - STABILIZED CONVERTER FOR PULSE CONSUMERS - Google Patents

Abstract

The utility model relates to the field of electrical engineering and can be used to supply direct voltage to pulsed consumers. The problem to which the utility model is directed is to reduce the impulse effect of the load on the industrial network. The device comprises a converter consisting of two electronic keys, a transformer and a bridge rectifier, an inductance and a capacitive storage, an input power stabilizer, consisting of a network bridge rectifier, a capacitor, inductance, an electronic switch and a diode, an intermediate drive and a device control unit.

Description

The utility model relates to the field of electrical engineering and can be used for supplying constant voltage to pulsed consumers, for example, radar stations, power amplifiers of radio and television transmitters, pump generators of pulsed optical quantum generators, etc.

Known stabilized voltage Converter for pulsed consumers (device for charging a storage capacitor), containing a capacitive storage device, bridge rectifier and capacitor (RF patent No. 2038682 according to class N 02 M 7/02 from 06/27/95).

This device allows you to improve energy and frequency characteristics. The disadvantage of this device is that it does not allow to reduce the impulse effect of the load on the industrial network.

The closest technical solution for the combination of essential features is a stabilized voltage converter for pulsed consumers, containing a converter with a control unit made of a transformer, the output winding of which is connected to a capacitive through a bridge rectifier and inductance

drive, and the conclusions of the input winding of the transformer are connected via electronic keys (AS USSR No. 966828 according to Cl. N 02 M 7/02 from 04/14/81).

This device allows you to increase efficiency. The disadvantage of this device is that it does not allow to reduce the impulse effect of the load on the industrial network.

The problem to which the claimed utility model is directed is to reduce the impulse effect of the load on the industrial network.

The problem is solved due to the fact that the stabilized voltage converter for pulse consumers, containing a capacitive drive, a converter with a control unit made of a transformer, the output winding of which is connected through a bridge rectifier and inductance to the capacitive drive, and the terminals of the input winding of the transformer are connected via electronic keys , it is equipped with an intermediate drive and an input power stabilizer containing a network bridge rectifier, at the output of the capacitor is connected, the inductance and the electronic key are connected in series, and their common point through the diode is connected to one plate of the intermediate drive and the middle output of the input winding of the transformer, while the other cover of the intermediate drive is connected to the common point of the electronic keys and the common point of the capacitor and the network bridge rectifier .

Figure 1 presents a schematic diagram of a stabilized voltage converter for pulse consumers.

The converter contains a converter 1, consisting of two electronic switches 2 and 3, a transformer 4 and a bridge rectifier 5, an inductance 6 and a capacitive storage 7, which is connected to a pulsed consumer with its conclusions (not shown conventionally in the drawing).

The control unit 8 performs the operation of the converter 1 and the input power stabilizer 9, which includes a network bridge rectifier 10, a capacitor 11, an inductance 12, an electronic switch 13, a diode 14. An intermediate drive 15 is connected between the input power consumption stabilizer 9 and the converter 1.

The device operates as follows.

At the initial moment, the intermediate drive 15 is charged by switching the electronic key 13 of the input power stabilizer 9. When the key 13 is opened, the current increases linearly to a certain value in the inductance 12. When the key 13 is closed, the stored energy in the inductance 12 oscillates into the intermediate drive 15.

After charging the intermediate drive 15 to the nominal value, the converter 1 is started, which by alternately switching electronic keys 2 and 3 charges the capacitive drive 7.

After charging the capacitive drive 7 to the nominal value, the consumer begins to pulse to consume power from

stabilized voltage converter with a certain duration and duty cycle. In this case, the stabilizer of the input power consumption 9 constantly consumes the average power from the network in proportion to the output pulse with the corresponding duty cycle.

In addition, the control unit 8 provides control of the electronic key 13 so that in each half-cycle of the supply voltage, the envelope of the consumed current corresponds in shape to the mains voltage and coincides in phase, which allows you to save the power factor equal to unity.

Thus, the proposed stabilized voltage converter for impulse consumers allows to reduce the impulse effect of the load on the industrial network.

Claims (1)

A stabilized voltage converter for pulsed consumers, containing a capacitive storage device, a converter with a control unit made of a transformer, the output winding of which is connected through a bridge rectifier and inductance to a capacitive storage device, and the terminals of the input winding of the transformer are connected via electronic switches, characterized in that it is equipped with an intermediate drive and stabilizer input power input containing a network bridge rectifier, the output of which is included condensate Ohr, the inductance and the electronic key are connected in series, and their common point through the diode is connected to one plate of the intermediate drive and the middle output of the transformer input winding, while the other cover of the intermediate drive is connected to the common point of the electronic keys and the common point of the capacitor and the network bridge rectifier.