Title :
Issues in the Delivery of RF Current Pulses to a Microprocessor
Author :
Sharma, Attma ; Wu, Xuelin ; Ngo, Khai D T ; Lee, Fred C. ; Xu, Ming ; Ren, Yuancheng ; Schmit, Andy
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL
Abstract :
Passive and active filters are reviewed to define technology requirements for maintaining the impedance seen by the microprocessor below 1mOmega (100mV transient excursion on top of a 0.8-V, 120-A bus) in the gigahertz frequency range. The designs of these filters need to be coordinated so that the active filter does not have to carry the bulk of the real power or a significant amount of reactive power. Parasitic inductances need to be kept below a picohenry and amplifiers need to have bandwidth approaching a gigahertz to keep the loss below 10% of the real power
Keywords :
active filters; microprocessor chips; passive filters; radiofrequency amplifiers; radiofrequency filters; reactive power; 0.8 V; 100 mV; 120 A; RF current pulses; active filters; amplifiers; microprocessors; parasitic inductances; passive filters; reactive power; Active filters; Band pass filters; Capacitors; Impedance; Inductance; Inductors; Microprocessors; Radio frequency; Regulators; Voltage; Active clamp; hybrid filter; linear active filter (LAF); linear regulator; microprocessor power delivery; passive filter; switched capacitor active filter; transient absorber; transient suppressor; voltage regulator module (VRM);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2006.886604
