Low audible noise power supply controller and method therefor
US6998828B2 · kind B2 · utility
7Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/156
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a power supply controller of a power supply system uses an algorithm to reduce the number of drive pulses to the output transistors under light load conditions. The algorithm groups the drive pulses to the output transistors into sets and removes some of the drive pulses for each set drive pulses issued by the controller. Each successive set removes additional drive pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.