System and method for determining the decoupling capacitors for power distribution systems with a frequency-dependent target impedance
US6571184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jun 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/367
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for determining the desired decoupling capacitors for power distribution systems having frequency dependent target impedance. In one embodiment, the target impedance may be a function of frequency, and thus may vary in value over a frequency range from 0 Hz to a corner frequency. A specific quantity of decoupling capacitors may be selected to provide decoupling for the power distribution for a given frequency within the frequency range. A total impedance provided by the specific quantity of selected decoupling capacitors may be calculated and compared to the calculated target impedance for the given frequency. If the total impedance provided by the specific quantity of selected decoupling capacitors is greater than the target impedance for the given frequency, the impedance may be adjusted by changing the quantity of capacitors. Capacitors may continue to be added until the total impedance is less than the target impedance. This may be performed for one or more frequencies within the calculated frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.