SU1665484A1

SU1665484A1 - Dc/dc voltage converter

Info

Publication number: SU1665484A1
Application number: SU884619559A
Authority: SU
Inventors: Вадим Иванович Костылев; Владимир Аркадьевич Баймулкин
Original assignee: Чувашский государственный университет им.И.Н.Ульянова
Priority date: 1988-12-14
Filing date: 1988-12-14
Publication date: 1991-07-23

Abstract

Изобретение относитс к области электротехники и может быть использовано в источниках вторичного электропитани . Цель изобретени - повышение кпд. Преобразователь содержит последовательные цепи 1, 2 из двух конденсаторов 3, 4 и двух ключевых элементов 5, 6, точки соединени которых св заны через первичные обмотки 8, 9 выходного 7 и вспомогательного 10 трансформаторов. При переключении ключевых элементов 5, 6 формирование траектории их переключени на этапах включени и выключени осуществл етс с помощью демпфирующих конденсаторов 11, 12 и диодов 13, 14, 15, 16. Подготовка демпфирующих цепей дл очередного этапа работы осуществл етс с помощью вторичных обмоток 17, 18 вспомогательного трансформатора 10. Напр жени с обмоток 17, 18 перезар жают конденсаторы 11, 12 до необходимого напр жени , не увеличива рабочий ток ключевых элементов 5, 6. 2 з.п. ф-лы, 4 ил.The invention relates to the field of electrical engineering and can be used in secondary power supply sources. The purpose of the invention is to increase efficiency. The converter contains serial circuits 1, 2 of two capacitors 3, 4 and two key elements 5, 6, the connection points of which are connected through the primary windings 8, 9 of the output 7 and the auxiliary 10 transformers. When switching the key elements 5, 6, the formation of the path of their switching at the on and off stages is carried out with the help of damping capacitors 11, 12 and diodes 13, 14, 15, 16. The preparation of damping circuits for the next stage of work is carried out with the help of secondary windings 17, 18 auxiliary transformer 10. Voltages from windings 17, 18 recharge capacitors 11, 12 to the required voltage, without increasing the operating current of the key elements 5, 6. 2 Cp. f-ly, 4 ill.

Description

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Claims

Claim

1. A DC-voltage converter made according to a bridge or half-bridge inverter circuit, the diagonal of an alternating current of which is connected to the output terminals through an output transformer and bridged by two circuits, each of which consists of a damping capacitor and a damping diode, the connection points of which through series-connected circuits of windings the inductor and return diodes are connected to the input terminals, respectively, characterized in that, in order to increase efficiency. the primary winding of the auxiliary transformer introduced is introduced into the diagonal of the inverter’s alternating current, the two secondary windings of which are connected in series in the winding circuits of the inductor and return diodes, respectively.

2. Converter pop. 1, distinguishing with the fact that additional chokes are introduced sequentially in the circuit from the windings of the inductor and return diodes.

Figure 4