Technical data

QUICKTRONIC
®
Intelligent DALI DIM | Overview of dimmable control gears
6
2 Overview of dimmable control gears
2.1 Block diagrams of a digital/analog
dimmable ECGs
2)
2.1.1 Block diagram of a digital dimmable ECG with DALI interface
2.1.2 Block diagram of an analog dimmable ECG with 1…10-V interface
The EMC filter and safety shutdown are important components of a high-quality dimmable control gear
The EMC filter and safety shutdown are important components of a high-quality dimmable control gear
EMC fi lter
≈/=
DALI
≈/=
=
++
––
Rectifi er
DALI interface
µC & Memory
Safety shutdown
Lamp control
Filament heating control
Inverter
and fi lament
heating
PFC
Lamp
EMC fi lter
≈/=
1…10 V
≈/=
=
+
+
+
–
–
–
Rectifi er
DIM interface
Safety shutdown
Lamp control
Filament heating control
Inverter
and fi lament
heating
PFC
Lamp
2) • EMC fi lter for HF interference from 9 kHz to 300 MHz
• PFC: “Power factor correction” = correction of the line harmonics
• Inverter: Half-bridge driver with resonance cycle (40 kHz–120 kHz)
• Safety shutdown incl. “end of life” detection