JPS583787U

JPS583787U - DC-DC converter circuit

Info

Publication number: JPS583787U
Application number: JP9650281U
Authority: JP
Inventors: 川口　千廣
Original assignee: 富士電気化学株式会社
Priority date: 1981-06-29
Filing date: 1981-06-29
Publication date: 1983-01-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図Ａ及び第１図Ｂはそれぞれ従来技術の回路図、第
２図はそれら６電圧・電流波形図、第３図は本考案の一
実施例を示す回路図、第４図はその各部の波形図、゛第
５図、第６図、第７図はそれぞれ本考案の他の実施例を
示す回路図である。１・・・活流・平滑回路、２・・・パルス列発生回路、
；　５・・・整流回路、Ｔ□・・・主トランス、Ｔ２・
・・副トランス、Ｑ□・・・主スイツチング素子、Ｑ２
・・・副スイツチング素子。メーFigures 1A and 1B are circuit diagrams of the prior art, Figure 2 is a diagram of the six voltage and current waveforms, Figure 3 is a circuit diagram showing an embodiment of the present invention, and Figure 4 is a circuit diagram of each of its parts. The waveform diagrams of FIG. 5, FIG. 6, and FIG. 7 are circuit diagrams showing other embodiments of the present invention, respectively. 1... Active current/smoothing circuit, 2... Pulse train generation circuit,
; 5... Rectifier circuit, T□... Main transformer, T2...
・・Sub-transformer, Q□・・Main switching element, Q2
... Sub-switching element. Baa

Claims

[Claims for Utility Model Registration] 1. A main transformer, a main switching element connected in series to the primary winding of the main transformer, a rectifier and smoothing circuit connected to the secondary winding of the main transformer, and a main switching element connected in series to the primary winding of the main transformer. In a DC-DC converter circuit equipped with a pulse train generation circuit that drives a switching element and a reset circuit that resets the magnetic flux of the main transformer, in parallel to the capacitor of the reset circuit,
A series circuit of the primary winding of the sub-traless and the sub-switching element is connected, and the secondary winding of the sub-transformer is connected to the load side via a rectifier circuit, and the sub-switching element is connected by the pulse train generating circuit. This is a DC-DCC comparator in which the element is driven in synchronization with the main switching element, and thereby the energy stored in the capacitor of the reset circuit is released to the load on the secondary side by the sub-switching element and the sub-transformer. Circuit 22 The series circuit of the primary winding of the sub-transformer and the sub-switching element is □ with respect to the main switching bare hand. The circuit according to claim 1 of the utility model registration, which is incorporated in parallel. 3. The circuit according to claim 1, in which the series circuit of the primary winding of the sub-transformer and the sub-switching element is connected in parallel to the primary windings of the main, transformer, and transformer. . 4. The circuit according to claim 1, wherein the sub-switching element has a shorter on-time than the main switching element.