SU1642568A1 - Full-wave rectifier with voltage doubling - Google Patents

Abstract

The invention relates to electrical engineering and can be used (but as an overvoltage power source for several loads. The purpose of the invention is to improve energy and operational characteristics. A rectifier consists of a transformer to which the secondary winding of the rectifier bridge inputs are connected to diodes 1-4 and the first cascade of voltage multiplication, performed by a bridge circuit on diodes 10, 11 and capacitors 12, 13o. The input of the second cascade voltage multiplier is connected to the output of the first cascade. The rectifier and multiplication stages are connected to the corresponding output terminals for connecting loads.The secondary winding of the transformer is made with a midpoint and intermediate taps, which are connected to additional output terminals 31, 37, respectively, through additional diodes 29, 37, respectively. 8 and each of the output terminals include, respectively, capacitors 7, J6, 24, 30, 36. This device allows for a small number of voltage multiplication stages to increase the number of different levels over the output voltages. 1 hp ff, 1 ill. g (L

Description

The invention relates to electrical engineering and can be used as an overvoltage power source for several loads.

The purpose of the invention is to improve energy and operational characteristics.

The drawing shows a schematic diagram of the device.

The device contains a rectifying bridge on diodes 1-4, connected by inputs to terminals 5, 6 of the secondary winding of a power transformer, and outputs to a capacitor 7 connected to common terminal 8 and terminal 9 for connecting the load. The first voltage multiplier stage is implemented on diodes 10, 11 and capacitors 12, 13 and connected by outputs through diodes 14, 15 to a capacitor 16 and a second output terminal. 17. The inputs of the second multiplication stage are connected with the outputs of the first diodes 18, 19 and the capacitors 20;

21, which are through decoupling diodes

22,23 are connected to the capacitor 24 and the third output terminal 25. The power transformer 26 input terminals

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27, 28 is connected to the network, and the middle one. " the output of the secondary winding through the diode 29 to the capacitor 30 and the fourth output terminal 31. The intermediate terminals 32, 33 through the diodes 34, 35 are connected to the fifth capacitor 36 and the right output terminal 37. The inputs of the second multiplication stage can also be connected to the intermediate terminals of the transformer 32, 33, which expands the possibilities of using the proposed device.

The device works as follows.

Through diodes 1, 3, terminals 5, 6 of transformer 26 are alternately connected to common terminal 8 and capacitors 7, 12, 13, 20, 21 are charged before the voltage between terminals 5, 6}, the capacitor 30 is charged to half the network voltage, and the capacitor 36 is charged to the voltage between the terminals 5, 32 and the terminals 6, 33. When the voltage of the capacitors 12, 13 is added to the voltage of the terminals 5, 6, the capacitor 16 is charged to double the voltage through the diodes 14, 15, and when the capacitors 21, 22 is summed with the voltage of the capacitors 12, 13 and the voltage of the terminals 5, 6, the condensate p 24 is charged to three times the voltage. When the inputs of the second stage are connected not to the output of the first, but to intermediate terminals, the output voltage of the output terminal 25 is twice the voltage of the capacitor 36. It is advisable to use this connection with a high power consumption of all loads.

Claims (2)

1. Push-pull rectifier with voltage multiplication, containing input terminals for connecting a single-phase AC source, common and output pins for connecting single-phase rectifier bridge loads, the output DC diagonal of which is shunted by the first capacitor connected between the common and the first output pins, and at least two multiplication stages, each of which consists of two diodes and two capacitors connected by a single-phase bridge circuit, the output of which is connected to one of the subsequent output pins through a corresponding pair of separation diodes, and the diagonal of the alternating current of the first cascade is The live output is connected parallel to the input diagonal of the rectifying bridge, the output of the first voltage multiplier is connected to the input of the second voltage multiplication stage, and between the common output and the second and third output leads, respectively, are included the second and third capacitors, characterized in that energy and operating parameters, the transformer is additionally inserted, the winding of which is connected to the input terminals, and the secondary is made to the middle point connected through A flux-inserted diode with a fourth output pin, connected via a fourth capacitor additionally inserted, with a common pin, the extreme leads of the secondary winding of the transformer being connected to the input square of the rectifying bridge. 2. The rectifier of claim 1, characterized in that the secondary winding of the transformer is provided with an additional two intermediate taps connected through two additionally inserted diodes to a fifth output terminal connected through an additionally introduced fifth capacitor to a common output 26 flgftg J "T X thirty n 25 o 7-8