Matsushita Electric Industrial Co., Ltd.

Yo Nakagawa

Hiroki Matsunaga

Masanori Yamanaka

Shinichiro Kataoka

A fluorescent lamp lighting apparatus in accordance with the present invention has first switching means (M) driven by a high-voltage-side pulse signal input from a drive-signal generation circuit and second switching means (M) driven by a low-voltage-side pulse signal input from the drive-signal generation circuit, wherein the first switching means (M) is connected in series with the second switching means (M), and a first capacity (C) and an inductance element (L) and the above-mentioned second switching means (M) are provided between the high-voltage-side terminals of a pair of filament electrodes of a light-emitting tube (), whereby a constant luminous flux can be maintained immediately after lighting.

Apparatus for lighting fluorescent lamp

A fluorescent lamp lighting apparatus in accordance with the present invention has first switching means (M,) driven by a high-voltage-side pulse signal input from a drive-signal generation circuit and second switching means (M,) driven by a low-voltage-side pulse signal input from the drive-signal generation circuit, wherein the first switching means (M,) is connected in series with the second switching means (M,), and a first capacitor (C,) and an inductance element (L,) and the above-mentioned second switching means (M,) are provided between the high-voltage-side terminals of a pair of filament electrodes of a light-emitting tube (,), whereby a constant luminous flux can be maintained immediately after lighting.

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Suita, Japan

Yo Nakagawa