H05B41/232 - CPC Classification Index

ClassID:

233249 ⎘

H05B41/232 - CPC Classification

Classification description:

Circuit arrangements or apparatus for igniting or operating discharge lamps; Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps

Sub-classes:

H05B41/2325 » {provided with pre-heating electrodes} 4
H05B41/233 » using resonance circuitry 1
H05B41/234 » to eliminate stroboscopic effects, e.g. feeding two lamps with different phases 2

Recent Application in this class:

20130229118

2013-09-05

Using two thermal switches to control a hybrid lamp

20050156532

2005-07-21

Planar light source device, method of driving the same and display apparatus having the same