Fluorescent lamp dimming circuit

The dimming circuit switches the operating frequency for the fluorescent lamp (KL) on and off at a dimming frequency with a variable pulse width, the dimming frequency being less than the operating frequency. The simultaneous adjustment of the operating voltage for the fluorescent lamp is provided b...

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Bibliographische Detailangaben
1. Verfasser:	BIRK, BERTHOLD, 63739 ASCHAFFENBURG, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The dimming circuit switches the operating frequency for the fluorescent lamp (KL) on and off at a dimming frequency with a variable pulse width, the dimming frequency being less than the operating frequency. The simultaneous adjustment of the operating voltage for the fluorescent lamp is provided by on-off switching of the supply voltage at a third frequency with a variable pulse width, the third frequency being greater than the operating frequency.