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Simulated wall dimmer for CFL/LED lamps based on TS820 (EU 220 V version)

STEVAL-ILD003V1

Overview

The STEVAL-ILD003V1 demonstration board is designed to propose a low-cost analog dimmer topology using a sensitive SCR TS820-600FP. The dimmer can drive typical low-consumption lamps, particularly CFL and LED dimmable lamps.

Through-hole technology is used for the most important components such as LC filter, gate resistor, turn-on delay capacitor, etc., in order to allow board modification, if needed.
The STEVAL-ILD003V1 eliminates flickering thanks to its continuous current applied through the sensitive SCR gate. This dimmer could easily replace a standard low-cost analog Triac light dimmer using a Diac-controlled circuit.

Main features

Operation for 2-wire wall dimmer
Leading-edge control (compatible with all lamps commonly found on the market)
Operation on 230 V line rms voltage (198 to 264 V) and 50 Hz or 60 Hz line frequency
Dimmable power range with halogen, CFL and LED lamps (without heatsinks mounted on SCRs1):
- 3 to 350 W for 230 V rms line
Maximum operating ambient temperature: 60 °C
Power efficiency @ 350 W / 230 V > 99%
Standby losses @ 230 V
RoHS compliant
Compliance with EMC standards
- IEC 61000-4-4: criteria A for more than 2 kV
- Compliant with EN55015 with 350 W / 230 V halogen lamp

Design Files

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