The Practical power supply design method for the display panel of smartphone

This paper introduces a practical power supply design method for the display panel of smartphone. The specific goal of this design method is to reduce the voltage stress over the internal MOSFET of the power supply for more reliable operation. A power integrity analysis is conducted to evaluate a factor which increases the voltage stress over the internal MOSFET. Based on this analysis, two PCB layouts are designed for case studies. Reduced voltage stress is verified in the case study.

[1]  T.M. Jahns,et al.  Development of an Active dv/dt Control Algorithm for Reducing Inverter Conducted EMI with Minimal Impact on Switching Losses , 2007, 2007 IEEE Power Electronics Specialists Conference.

[2]  K. Takao,et al.  High Power Density Design Methodology , 2007, 2007 Power Conversion Conference - Nagoya.