Dimming control circuit for a fluorescent lamp has AC/DC converter and digital control circuit connected to half bridge with connection to lamp circuit

摘要

The control circuit for a fluorescent lamp has an AC/DC converter (AC/DC Wandler) with line (L), neutral (N) and earth (PE) connections to a radio interference removal circuit (Funkentsorgung). This is connected to a rectifier (Gleichrichter) and a PFC control (PFC). The converter is in contact with a signal preparation circuit (Signal- aufbereitung), a digital control circuit (Digitale Steuer ---) and a half bridge (Halbbrucke). The half bridge is connected to a lamp circuit (Lampenkreis) with a resonance circuit Resonanz-kreis and a fluorescent lamp (Lampe). The lamp circuit is connected to a signal preparation circuit (Signal- aufbereitung).