- Date of Publication 27 May 2008
- Meeting end date 29 May 2008
- Location Nuremberg, Germany
- Conference/Proceedings International Conference for Power Conversion, Intelligent Motion & Power Quality, May 2008. PCIM Europe ‘08. Conference Proceedings 2008
The paper presents an innovative design that delivers 85W of power at more than 91% efficiency in a low profile using a high frequency quasi-resonant fly-back topology with synchronous rectification, and improved power factor based on dual switch method. A closed to 0.9 power factor is achieved employing only one magnetic element and two primary side switchers. A significant power density increase is obtained due to a combination of smaller bulk capacitor and a smaller magnetic element.