Method for controlling a beam of light from dimmed bulbs and switching arrangement for this

摘要

The method involves utilizing the voltage on a semiconductor switch as a control variable for luminous flux control, when the voltage blocks the current flow to the illuminant. A switching point comparison value depicting the emitted luminous flux is generated for interconnecting the semiconductor switch depending on the level of the detected blocking voltage, and for separating the semiconductor switch from the load depending on the design of the dimmer as phase control dimmer (1) or a reverse phase control dimmer. An independent claim is included for a circuit arrangement for controlling the luminous flux of an illuminant connected to a dimmer having a semiconductor switch.