Title :
PCB layout vias effect on power supply performance
Author :
Abou-Alfotouh, Ahmed ; Orabi, Mohamed ; Ghahary, Ali
Author_Institution :
Enpirion Inc., Bridgewater, NJ
Abstract :
Modern design has demanding specifications for DC- DC power supplies. One of the main challenges is how to design a converter with small footprint and low output ripple. This paper proposes a simple and elegant technique for decreasing the total inductance in series with the output capacitor as it is mounted on the PCB. A novel model for PCB with vias is introduced, and simulation results show the advantage of using vias in the layout. Lastly, experimental results have verified analysis and simulation.
Keywords :
DC-DC power convertors; capacitors; power supply circuits; printed circuit layout; DC- DC power supplies; PCB layout; capacitor; power supply performance; Capacitors; Ceramics; DC-DC power converters; Filters; Impedance; Inductance; Power supplies; Resonant frequency; Switching converters; Switching frequency;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-1873-2
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2008.4522744
