AN809 Datasheet (Microchip) - Digitally Addressable DALI Dimming Ballast

AN809 Description

The IRPLDIM2 Demo Board consists of an EMI filter, an active power factor correction front end, a ballast control section, a digital control section, and a resonant lamp output stage. A block diagram of the design is shown in Figure 3. The EMI filter blocks ballast generated noise. The power factor

AN809 Digitally Addressable DALI Dimming Ballast Authors: Ross Fosler Microchip Technology Incorporated Cecilia Contenti International Rectifier Tom Ribarich International Rectifier INTRODUCTION This reference design is a high efficiency, high power factor and digital dimming electronic ballast designed to drive rapid start fluorescent lamp types.
The design contains an active power factor correction circuit for universal voltage input as well as a ballast control circuit using the IR2159.
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AN809 Features

* include EMI filtering, transient protection and lamp FAULT protection. International Rectifier (IR) and Microchip Technology Inc. worked together to design a DALI type ballast. An application note is provided here, and the corresponding reference design is available from IR (see page 10 for ordering