Outdoor and Wide Area Lighting
LED implementations in outdoor and wide area lighting applications offer significant advantages over traditional light sources: Low maintenance cost due to long lifetime, directed light output, instant-on and excellent dimming behaviour. Highest system efficiencies are key and are feasible by using superior semiconductor solutions from the market leader.
High efficiency dimmable wide area lighting solution adjustable for ~90-180W
Key Features
- 2-stage power supply topology using DCM-PFC + LLC and secondary side LED current control
- Adjustable multi-string LED configuration to cover a broad power range from 90-180W
- Supply voltage: 90-270 VAC
- Output voltage: 37V to 48 VDC
- Output current: 4 channels x 700 mA
- Power factor > 0.95
- PWM dimming from 25% ~ 100%
- Overall power efficiency above 91%
- Open- and short-circuit protection and auto-detection
- Soft-start voltage programmable from 30 V
- Start-up speed control
- Brownout function
- Over-temperature protection
- Upgradeable microcontroller for software protocol implementation, e.g. DALI
40W LED power supply using single stage DCM-PFC/flyback and secondary side LED current control
Key Features
- Adjustable multi-string configuration
- Supply voltage: 90-270 VAC
- Output voltage on secondary side: ~23 VDC
- Output current: 350mA
- Overall system efficiency of 87%
- High power factor up to 0.98 and low THD
- Low system BOM, through single-stage concept
- +/- 2% accuracy constant-current constant-voltage regulation
- Cycle-by-cycle peak current limitation
- Low in-rush current
- VCC over and under-voltage protection
- Low EMI due to linear driving concept on the secondary side
