Decoupling strategies for printed circuit boards without power planes

H.W. Shim1, T.M. Zeeff1, T.H. Hubing1
1EMC Laboratory, University of Missouri, Rolla, Rolla, MO, USA

Tóm tắt

Traditional decoupling capacitors connected between V/sub CC/ and GND traces can be relatively ineffective at frequencies above their self-resonant frequency. This paper evaluates decoupling capacitor mounting strategies on boards without power planes. Techniques for minimizing mutual inductance and improving decoupling at frequencies above resonance are investigated.

Từ khóa

#Printed circuits #Capacitors #Inductance #Electromagnetic compatibility #Laboratories #Filters #Testing #Resonant frequency #Magnetic flux #Resonance

Tài liệu tham khảo

10.1109/15.135626 olsen, 2000, Understanding and improving shunt capacitor high-frequency attenuation, UMR Technical Brief University of Missouri-Rolla EMC Laboratory