JPS60192692U

JPS60192692U - Separately excited inverter

Info

Publication number: JPS60192692U
Application number: JP7859284U
Authority: JP
Inventors: 隆古田
Original assignee: 日立照明株式会社
Priority date: 1984-05-30
Filing date: 1984-05-30
Publication date: 1985-12-21

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 the drawing]

第１図は従来の他励式インバータの基本構成回路、第２
図ないし第、６図は本考案の実施例を示しており第２図
は逆バイアス回路を付あ口重たＩＣインバータの基本構
成回路。第３図は第１図におけるトランジスタ各部波形
、第４図は第２図におけるトランジスタ各部波形、第５
図は第１図におけるトランジスタ損失波形、第６図は第
２図におけるトランジスタ損失波形。１・・・直流電源、２゛・・・矩形波発振回路、３・・
・共振コンデンサ、４．１１．１２は固定抵抗器、５゜
１３Ｌ１４・・・トランジスタ、６・・・発振トランス
、？、９．１５・・・ダイオード、訃・・バラストコン
デンサ、１０・・・けい光ランプ、１６・・・平滑用コ
ンデンサ、１７・・・逆バイアス用巻線。Figure 1 shows the basic configuration circuit of a conventional separately excited inverter.
6 to 6 show embodiments of the present invention, and FIG. 2 is a basic configuration circuit of an IC inverter with a reverse bias circuit added. Figure 3 shows the waveforms of each part of the transistor in Figure 1, Figure 4 shows the waveforms of each part of the transistor in Figure 2, and the waveform of each part of the transistor in Figure 5.
The figure shows the transistor loss waveform in FIG. 1, and FIG. 6 shows the transistor loss waveform in FIG. 2. 1... DC power supply, 2... Square wave oscillation circuit, 3...
・Resonant capacitor, 4.11.12 is fixed resistor, 5゜13L14...transistor, 6...oscillation transformer, ? , 9.15... Diode,... Ballast capacitor, 10... Fluorescent lamp, 16... Smoothing capacitor, 17... Reverse bias winding.

Claims

[Scope of utility model registration request]

A circuit consisting of a rectangular wave oscillation circuit operated by a DC power supply, a DC power supply, the primary side of an oscillation transformer, and a switching circuit. Then, the switching circuit turns on and off in synchronization with the output waveform of the rectangular wave oscillation circuit, causing the oscillation transformer to turn on and off.
A separately excited inverter is characterized in that it is equipped with a reverse bias circuit that reduces variations in storage time of a switching circuit in a lighting method that generates a voltage according to the turns ratio on the next side to light a fluorescent lamp.