The paper introduces a very simple and cost effective active PFC circuit mainly for lighting applications. However, it is suitable for any other application with constant output power. The converter is based on a DCM Boost topology using VKXX devices, a new family of smart power IC from STMicroelectronics. The smart device uses proprietary VIPower technology to integrate a monolithic emitter switching power device, the driver and some protections. Thanks to the features of such devices, the component count of the PFC is low requiring only an external capacitor. Finally, design guidelines and performance evaluation are given, confirming the suitability of STMicroelectronics VKXX for low cost active PFC in lighting applications.
Cost effective PFC with VIPower smart ICs for lamp ballast applications
SPIAZZI, GIORGIO;BUSO, SIMONE
2002
Abstract
The paper introduces a very simple and cost effective active PFC circuit mainly for lighting applications. However, it is suitable for any other application with constant output power. The converter is based on a DCM Boost topology using VKXX devices, a new family of smart power IC from STMicroelectronics. The smart device uses proprietary VIPower technology to integrate a monolithic emitter switching power device, the driver and some protections. Thanks to the features of such devices, the component count of the PFC is low requiring only an external capacitor. Finally, design guidelines and performance evaluation are given, confirming the suitability of STMicroelectronics VKXX for low cost active PFC in lighting applications.Pubblicazioni consigliate
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