Switch-mode power supply (SMPS) with auto-tuning using limit-cycle oscillation response evaluation
US7622820B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Apr 23, 2008 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jun 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch-mode power supply (SMPS) with auto-tuning using limit-cycle oscillation response evaluation provides optimized performance with reduced capacitance and inductance requirements for a given design. During operation of the SMPS, parameters of the converter are extracted, and the feedback and/or feed-forward compensation is adjusted to either hold the loop bandwidth of the converter near the critical bandwidth of the output capacitors, or maintain output voltage transients within a specified limit. The compensator response is either periodically updated, or is updated in response to an event, such as detection of a transient voltage spike having a characteristic that exceeds one or more predetermined thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.