Converting circuit and controller for controlling the same
US8253403B2 · kind B2 · utility
9Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Dec 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention uses a discharge path to release the power stored in an output capacitor of a converting circuit when the time interval between two adjacent switching thereof is too long and may generate noises whose frequencies can be sensed by human ears. Hence, the present invention can keep the operating frequency of the converting circuit higher than a predetermined frequency and reduce the audio noise of the converting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.