SU1552308A1

SU1552308A1 - Power supply source

Info

Publication number: SU1552308A1
Application number: SU884449763A
Authority: SU
Inventors: Анатолий Юрьевич Довгалевский; Владимир Васильевич Лепецкий; Владимир Александрович Павловский
Original assignee: Предприятие П/Я В-2210
Priority date: 1988-06-30
Filing date: 1988-06-30
Publication date: 1990-03-23

Abstract

Источник электропитани относитс к электротехнике и может быть использован во вторичных источниках электропитани . Цель изобретени - снижение уровн несимметричной помехи. Изобретение содержит импульсный преобразователь, первична и вторична цепи преобразовател которого соединены с помощью конденсатора 8, а между входом источника и входом преобразовател и между их выходами установлены соответствующие многообмоточные дроссели 6 и 7. При этом благодар большим импедансам дросселей 6 и 7 и малому импедансу конденсатора 8 помеха локализуетс во внутренних контурах преобразовател , что снижает ее уровень. При наличии нескольких выходов источника между каждым входным зажимом источника и преобразовател включена соответствующа изолированна обмотка дроссел 7, причем все указанные обмотки размещены на общем сердечнике. 3 з.п. ф-лы, 3 ил.The power supply refers to electrical engineering and can be used in secondary power supplies. The purpose of the invention is to reduce the level of asymmetric interference. The invention contains a pulse converter, the primary and secondary circuits of the converter of which are connected by means of a capacitor 8, and the corresponding multiwinding chokes 6 and 7 are installed between the source input and the converter input and between their outputs. Due to the large impedances of the chokes 6 and 7 and the small impedance of the capacitor 8 the disturbance is localized in the internal circuits of the converter, which reduces its level. If there are several source outputs between each input terminal of the source and the converter, the corresponding isolated winding of the choke 7 is turned on, all of these windings are placed on a common core. 3 hp f-ly, 3 ill.

Description

фиг. гFIG. g

Г -Ln JLMr -Ln JL

ф/2 / / ; N y;j Ф , 12f / 2 / /; N y; j F, 12

ЯГ ЯУ YAG YAU

ТУГTUG

Ф&.3F & .3

Claims

Claim )

30 1. A power source containing a pulse voltage Converter, made on a transistor, transformer and rectifier diode, capacitors connected in parallel to the input and output terminals,

35 input choke, through the windings of which the pulse converter is connected to the input terminals by the input and the output choke, through the windings of which outputs the pulse converter is connected to the output terminals, a shunt capacitor, characterized in that, in order to reduce the level of unbalanced noise, the input and output terminals of the converter of the same polarity are connected through an element having a low electrical resistance for the interference current, for example, through a shunt capacitor,

2. The power supply according to claim 1, characterized in that in a pulse converter made according to a single-cycle DC voltage converter with an output transformer, a shunt capacitor is connected between a common primary circuit and a common bus of the secondary circuit.

3. The power source according to claim 2, characterized in that it is. the pulse converter is multichannel, the output $ inductor windings are made on one core.

4. The power supply according to π.1, characterized in that the pulse converter is made according to a series pulse stabilizer, the windings of the input and output chokes are located on the same core, while the third winding is connected to the potential output bus by the first output, and the output of the power supply is formed the second terminal of the third winding and the common bus.