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Digital wall dimmers for halogen and low-power lamps

STEVAL-ILD004V2

Overview

The STEVAL-ILD004V2 evaluation board represents an innovative and low cost power topology for light wall dimmers using two sensitive TS820-600FP SCRs and a single STGF10NC60KD IGBT to dim 100 - 240 V halogen lamps, SELV halogen lamps through magnetic or electronic transformers, and new CFL and LED dimmable lamps.

Control of the board is achieved with STM8S103F2 microcontroller.
In comparison with STEVAL-ILD004V1, this board introduces a buck SMPS (operated through the VIPer06XS) instead of a linear power supply, for compatibility acrtoss all dimmable LED and CFL lamps.

Main features

Flicker-free operation with paralleled lamps
Operation in 2- or 3-wire configuration
Leading-edge control
Operation at 110 V or 230 V line rms voltage and 50 Hz or 60 Hz line frequency
Dimmable power range:
- 3 W to 600 W for 230 V rms line
- 3 W to 300 W for 110 V rms line
- higher power is possible with larger heatsink
Power efficiency @ 600 W - 230 V > 99%

Standby loss @ 230 V
Short-circuit protection at startup
Enhanced interface with push-buttons; soft-start and soft-stop; memory of last setting
Compliance with EMC standards:
- IEC 61000-4-5: criteria A for 2 kV surge
- IEC 61000-4-4: criteria A for more than 4 kV
Filterless compliance with EN55015 for 600 W -230 V halogen lamp
RoHS compliant

Design Files

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