JPH0186094U

JPH0186094U -

Info

Publication number: JPH0186094U
Application number: JP18154287U
Authority: JP
Priority date: 1987-11-26
Filing date: 1987-11-26
Publication date: 1989-06-07

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例の回路図、第
２図はこの考案の第２の実施例の回路図、第３図
はこの考案の第３の実施例の回路図、第４図はこ
の考案を第４の実施例の回路図、第５図は従来例
の回路図である。１０……漏れ変圧器形安定器、１１……コンデ
ンサ用昇圧巻線、１７……共通線、１８……出力
線、１９，２０……出力端子、２１……蛍光ラン
プ、２３，２４……入力端子、２５……電源線接
続用端子、２７……力率改善コンデンサ。 Figure 1 is a circuit diagram of the first embodiment of this invention, Figure 2 is a circuit diagram of a second embodiment of this invention, Figure 3 is a circuit diagram of a third embodiment of this invention, and Figure 4 is a circuit diagram of a third embodiment of this invention. The figure is a circuit diagram of a fourth embodiment of this invention, and FIG. 5 is a circuit diagram of a conventional example. 10... Leakage transformer type ballast, 11... Step-up winding for capacitor, 17... Common line, 18... Output line, 19, 20... Output terminal, 21... Fluorescent lamp, 23, 24... Input terminal, 25... terminal for power line connection, 27... power factor correction capacitor.

Claims

[Scope of utility model registration request]

In a leakage transformer type ballast having a step-up winding for a capacitor, a power supply line connection terminal is provided separately from the input terminal of the common line of the primary winding, and the input terminal of the step-up winding for the capacitor and the input of the common line are provided. A leakage transformer type ballast, characterized in that the input terminal of the common line and the power line connection terminal can be connected when a power factor correction capacitor is connected between the terminals.