STMicroelectronicsSTEVAL-ILL027V1Kit e schede di sviluppo gestione della potenza
L6562A Power Factor Correction Demonstration Board
Compliant | |
EAR99 | |
Obsolete | |
8473.30.11.80 | |
Automotive | No |
PPAP | No |
Dev Kit Description
This demonstration board implements a 18 W non-isolated soft-switched high power factor offline LED driver. The buck-boost converter is chosen for this application due to its simplicity and low cost. The converter operates with constant peak current for constant power control and in transition mode (boundary mode between CCM and DCM) to achieve soft switching. High power factor is achieved by reshaping the peak current nearby the zero crossing of input AC line.
Dev Kit Features
-Input voltage 120 VAC +/-10%-Provides 18 W constant power to HBLED-Able to drive 14 to 20 HBLED in series-Soft switching-LED open circuit protection-LED short circuit protection-Power factor > 0.8-Efficiency > 87%-RoHS compliantDev Kit Additional Information
Application Note
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/CD00257384.pdf?s_searchtype=keyword