CS274868B2 - Connection for fluorescent lamps' greater number's luminous flux control - Google Patents

Abstract

The solution concerns lighting engineering and it can be used in many fields, such as in industry, heath service, public lighting, exhibition buildings, museums, agriculture etc. The connection solves the smooth regulation of a larger number of fluorescent lamps even with high ignition voltage with the configuration possibility of the lighting level or of its direct control. The connection uses the circuit of the controlled switch (90), which contains an ignition pulse shaper of the fluorescent lamp. The ignition pulse shaper is connected in similar solutions between the inlets of the fluorescent lamp heating (6), which connects with the output of the start pulse generator (80), containing the heating circuit of fluorescent lamps with the active switching element, which is supplied by the interlinked voltage via the circuit (70) of the phase shift, which safeguards the start pulse delay corresponding to the phase shift of the fluorescent lamp current and thus also smooth regulation of the light flux even of a larger number of fluorescent lamps. The heating circuit of fluorescent lamps enables to set configuration of the lighting level and safeguards heating and lightening of fluorescent lamps even after interruption and restoration of the electricity supply.<IMAGE>