JPS59158298U

JPS59158298U - Ballast for fluorescent lamps

Info

Publication number: JPS59158298U
Application number: JP5270583U
Authority: JP
Inventors: 谷村　悟
Original assignee: 日立照明株式会社
Priority date: 1983-04-11
Filing date: 1983-04-11
Publication date: 1984-10-24

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図は従来の安定器の回路図、第２図は第１図の回路
の無負荷２次電圧波形、第３図は本考案における回路構
成を説明するための回路図、第４　図は第３図の回路の
無負荷２次電圧波形、第５図は本考案における実施例を
示す回路図である。１・・・２次巻線、２・・・共振用コンデンサ、３・・
・主コンデンサ、４・・・雑音防止用コンデンサ、５・
・・け　　　　。い光灯、６・・・制御回路、７・・・スイッチ。Fig. 1 is a circuit diagram of a conventional ballast, Fig. 2 is a no-load secondary voltage waveform of the circuit shown in Fig. 1, Fig. 3 is a circuit diagram for explaining the circuit configuration of the present invention, and Fig. 4 is a circuit diagram of a conventional ballast. FIG. 3 is a no-load secondary voltage waveform of the circuit, and FIG. 5 is a circuit diagram showing an embodiment of the present invention. 1... Secondary winding, 2... Resonance capacitor, 3...
・Main capacitor, 4...Noise prevention capacitor, 5.
··hair . Light lamp, 6...control circuit, 7...switch.

Claims

[Scope of utility model registration request]

In a resonant type fluorescent lamp ballast, there is an auxiliary winding connected to one end of the main capacitor, a switch circuit connected between the other end of the auxiliary winding and the other end of the main capacitor, and a fluorescent lamp ballast. A ballast for a fluorescent lamp, comprising a control circuit connected between both ends to control the switch circuit.