Low-dropout regulator and charge pump modeling using frequency-domain fitting methods
US10817631B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2020 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Mar 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Computer-implemented systems and methods are provided for modeling a charge pump. A relationship between an output voltage of the charge pump and a loading condition is determined. A frequency-domain analysis is performed at multiple frequencies to determine an impedance function representative of the charge pump's impedance at each of the multiple frequencies. A vector-fitting algorithm is applied to approximate the impedance function using a plurality of poles and residues. A circuit is synthesized based on the plurality of poles and residues. A model for the charge pump is generated, where the model includes the synthesized circuit and components that model the relationship between the output voltage and the loading condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.