Circuits, systems, methods, and software for power factor correction and/or control
USRE42946E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2010 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC —)General
Abstract
Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.