ATAVRFBKIT: Dimmable Fluorescent Ballast
Summary
Fluorescent ballast topology usually includes line conditioning for CE and UL compliance, a power factor correction block including a boost converter to 400 V for universal input applications and a half bridge inverter.
By varying the frequency of the inverter, the controller will preheat the filaments (high frequency), then ignite the lamp (reducing the frequency). Once the lamp is lit, varying the frequency will dim the light. The Atmel AT90PWM2B/216 microcontroller can be programmed to perform all of these functions.
By varying the frequency of the inverter, the controller will preheat the filaments (high frequency), then ignite the lamp (reducing the frequency). Once the lamp is lit, varying the frequency will dim the light. The Atmel AT90PWM2B/216 microcontroller can be programmed to perform all of these functions.
Specifications
| Manufacturer | Microchip Technology |
|---|---|
| Category | Lighting |
| Sub-Category | CFL Ballasts |
| Eval Board |
Board not Stocked
|
| Outputs and Type |
2 T8 Lamps
|
| Voltage In |
90 ~ 265 VAC
|
| Features |
DALI Interface
Dimming Control PFC Swiss Interface |
| Output Power |
18 W, up to 2 type T8 lamps
|
| Component Count + Extras |
177 + 11
|
| Design Author |
Atmel
|
| Main I.C. Base Part |
AT90PWM216
AT90PWM2B |
| Date Created By Author | |
| Date Added To Library | 2025-10 |
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