Power converter controller having event generator for detection of events and generation of digital error
US6956750B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Jan 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/33523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter comprises an event detection module detecting various events of the power converter in real time at the switching frequency of a switch in the power converter according to predetermined criteria. A pulse generator generates control signals for controlling the on-times and off-times of the switch based on the various detected events. The events detected by the event detection module include a detection of a “knee” in the reflected secondary voltage on the auxiliary windings of the transformer in a primary side sensing flyback power converter, and detection of a digital error quantifying the difference between the reference voltage and the reflected secondary voltage on the auxiliary windings of the transformer in time domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.