SU964916A1

SU964916A1 - Device for regulating rectified voltage

Info

Publication number: SU964916A1
Application number: SU813257646A
Authority: SU
Inventors: Валентин Викторович Красник; Николай Ильич Джус
Original assignee: Всесоюзный Институт Повышения Квалификации Руководящих Работников И Специалистов Легкой Промышленности
Priority date: 1981-03-09
Filing date: 1981-03-09
Publication date: 1982-10-07

Description

1one

Изобретение относитс к электротехнике , в частности преобразователь Иой технике, и может быть использовано , например, в источниках питани радиоэлектронной аппаратуры.The invention relates to electrical engineering, in particular, a converter using an engineering technique, and can be used, for example, in power supplies of electronic equipment.

Известны устройства дл регулировани выпр мленного напр жени , содержащие диодный выпр митель и трансформатор с переключением отпаек ГЛ И 12.Devices for adjusting the rectified voltage are known, which contain a diode rectifier and a transformer with switching taps of HL AND 12.

Недостатками известных устройств нвл ютс сложность и повышенные весогабаритные показатели.The disadvantages of the known devices are the complexity and increased weight and dimensions.

Наиболее близким к предлагаемому вл етс устройство дл регулировани выпр мленного напр жени , содержащее трансформатор и неуправл емый мостовой выпр митель, входные выводы анодной и катодной групп вентилей которого непосредственно и через основные коммутирующие элементы соединены с фазными выводами вторичной обмотки трансформатора СЗ.Closest to the present invention is a device for regulating the rectified voltage, which contains a transformer and an uncontrollable bridge rectifier, the input terminals of the anodic and cathodic valve groups of which are directly and via the main switching elements connected to the phase terminals of the secondary winding of the NW transformer.

Недостатками этого устройства вл ютс сложность и ограниченный диапазон регулировани при конечном числе отпаек трансформатора.The disadvantages of this device are the complexity and limited range of adjustment with a finite number of transformer taps.

Цель изобретени - упрощение и расширение диапазона регулировани .The purpose of the invention is to simplify and extend the range of adjustment.

Поставленна цель достигаетс тем, что в устройстве дл регулировани выпр мленного напр жени , содержащем трансформатор и неуправл емый мосто10 вой выпр митель, входные выводы анодцой и катодной групп вентилей которого непосредственно и через основные koммyтиpyющиe элементы сое с ииены с фазными выводами вторичной обмотки The goal is achieved by the fact that in a device for controlling rectified voltage, which contains a transformer and an uncontrolled bridge rectifier, the input terminals of the anodic and cathodic valve groups of which directly and through the main compressors are phase terminals of the secondary winding

Claims

15 transformer, zero output of the secondary winding of the transformer through the corresponding additionally introduced switching element is connected to one of the valves of the anodic and cathodic groups of the bridge rectifier, which is not directly connected to the corresponding phase output of the secondary winding of the transformer. Functional diagram of the device shown in the drawing. The device contains a transformer 1, an uncontrollable bridge rectifier, an anode group of valves 3-5 and a cathode group, an enele. 6-0. Accordingly, the main switching elements 9-13 connecting the input terminals of the valves and 5 anodic and valves 6-8 cathode, the rectifier groups 2c phase outputs 14-16 of the secondary winding of the transformer 1, additionally introduced commutation elements 17 and 18 connecting the neutral output 19 of the secondary junction of the transformer 1, additionally introduced switching elements 17 and 18 connecting the neutral output 19 of the secondary winding of the transformer 1 to the anode valve and the cathodic valve 8 of the bridge rectifier 2, load 20, Principle p The operation of the device is as follows. Depending on the combination of switched-on and disconnected main 9-13 and additionally introduced 17 and 18 connecting elements, the value of the output voltage on the load 20 varies from the minimum voltage generated by a single-phase half-wave; circuit without shunt diode to the maximum provided by a three-phase bridge circuit. In this case, the range of adjustment of the output voltage is approximately from 0, i5 to 2 ,,, where Uphase voltage of the transformer. The invention The device for controlling the rectified voltage, containing a transformer and an uncontrolled bridge rectifier, the input terminals of the anodic and cathodic valve groups of which, directly and through the main commutating elements, are connected to the phase terminals of the secondary winding of the transformer, in order to simplify and expanding the range of regulation, the zero output of the secondary winding of the transformer through the corresponding additionally introduced switching element is connected to one gates of the anode and cathode groups of the bridge rectifier is not directly connected to the respective phase terminal of the transformer secondary winding. Sources of information taken into account in the examination 1. Semiconductor rectifiers. Ed. F.I. Kovaleva and G.P. Bridging. N., Energie, 1979.

2. USSR author's certificate number it75713, cl. H 02 M 7/06, 1973.

3. USSR author's certificate number 107853 l. 21 from 59/01, 1956.