Lemontree

Digital wall dimmers for halogen and low-power lamps

STEVAL-ILD004V1

Overview

The STEVAL-ILD004V1 evaluation board is designed to propose an innovative and low cost power topology for a light wall dimmer using two sensitive TS820-600FP SCRs and a single STGF10NC60KD IGBT to dim the following lamp types: 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 the STM8S103F2 microcontroller.

Main features

Operation for 2-wire wall dimmer
Leading-edge control only (compatible with all commonly-available lamps on the market)
Operation at 110 V or 230 V line rms voltage and 50 Hz or 60 Hz line frequency
Dimmable power range (higher power is possible with larger heatsink):
- 3 W to 600 W for 230 V rms line
- 3 W to 300 W for 110 V rms line
Power efficiency @ 600 W - 230 V > 99%
Standby losses @ 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 2.5 kV
Compliant with EN55015 with 600 W - 230 V halogen lamp
RoHS compliant

Design Files

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Update:2025-07-03 07:23:54

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