Load responsive jitter
US9450478B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2015 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Jul 2, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller for a power converter that may sense whether the power converter is in a light load condition. If the power converter is a light load condition, the switching frequency may be within the audible noise range. Once the controller senses the light load condition, the controller may modulate the switching frequency of the power switch such that the switching frequency is no longer within the audible noise range. The controller comprises of a current limit generator coupled to generate an initial current limit signal and receive a feedback signal. The controller may sense a light load condition of the power converter and output a light load signal. As a result of the light load signal, the controller may modulate the initial current limit in response to the light load signal indicating a light load condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.