Active transient voltage compensator for improving converter fast transient response
US7251113B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Jul 20, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct current to direct current (DC-to-DC) converter having an active transient voltage compensator (ATVC) coupled with the DC-to-DC converter output terminal to improve a fast transient response of the DC-to-DC converter. The active transient voltage compensator compensates the DC output only during transient operation The ATVC includes a transformer for reducing the ATVC current stresses to improve the compensator efficiency and injecting, absorbing high slew rate current, and a controller circuit for controlling ATVC operation in steady state and normal operation in transients. During step-up load the ATVC operates as a buck converter and during step-down load, the ATVC operates as a boost converter while the main converter operates at low switching frequency for good efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.