SU1557655A1

SU1557655A1 - Dc voltage converter

Info

Publication number: SU1557655A1
Application number: SU884459702A
Authority: SU
Inventors: Борис Васильевич Новоселов; Владимир Дмитриевич Быков; Лев Вячеславович Смирнов; Владимир Юрьевич Рождественский
Original assignee: Предприятие П/Я А-1658
Priority date: 1988-07-14
Filing date: 1988-07-14
Publication date: 1990-04-15

Abstract

Изобретение относитс к электротехнике и может быть использовано в источниках вторичного электропитани . Цель - повышение надежности путем повышени быстродействи цепи обратной св зи по току нагрузки. Преобразователь посто нного напр жени состоит из M фаз, кажда из которых содержит силовые ключи 1, 2, шунтированные диодами реактивного тока 3, 4. Управление силовыми ключами 1, 2 осуществл етс от релейных регул торов 9, 10, на входы которых поступают сигналы задани тока через узлы гальванической разв зки 11, 12 и сигналы с датчиков тока 5, 6, измененные соответствующим образом в модел х нагрузки 7, 8. Это позвол ет управл ть силовыми ключами в функции тока нагрузки без гальванической св зи с ней. 4 ил.This invention relates to electrical engineering and can be used in secondary power supply sources. The goal is to increase reliability by increasing the speed of the feedback loop on the load current. The constant voltage converter consists of M phases, each of which contains power switches 1, 2, shunted by reactive current diodes 3, 4. Power switches 1, 2 are controlled from relay regulators 9, 10, to the inputs of which reference signals are received current through galvanic isolation nodes 11, 12 and signals from current sensors 5, 6, modified accordingly in load models 7, 8. This allows control of power switches as a function of load current without galvanic coupling with it. 4 il.

Description

Лиг. 2Lig. 2

Claims

Formula of the invention A DC voltage converter, consisting of w phases, each of which contains two power switches connected in series between the input terminals, shunted by reactive current diodes, the connection point of which is connected to the output terminal, two galvanic isolation nodes, a relay controller, a current sensor in order to increase reliability by increasing the speed of the feedback circuit with respect to the load current, a second relay controller, a second current sensor and two load models are introduced, the strokes of which are connected to the outputs of current sensors included in the current circuit of power switches, the control inputs of which are connected to the outputs of relay controllers, the first inputs of which are connected to the outputs of the corresponding load models, and the second inputs are connected through galvanic isolation nodes with a control input of the corresponding phase of the converter, when The inputs of the load models are connected to the corresponding key load current sensors.