Method for using a programmable operating frequency for a DC-to-DC converter for use with embedded wireless products
US7142441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Aug 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for determining the switching frequency of a DC-to-DC power supply for a portable radio transceiver (300) includes determining a first group of switching frequencies (301) and then determining the switching harmonics based on that group of switching frequencies (305). These switching harmonics are then compared to a group of desired radio channels (311) where it is then determined if the switching frequencies interfere with the group of desired radio channels (313). Based on these results, a second group of switching frequencies is selected if the first set of switching frequencies provides an undesired level of interference (317, 319, 321).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.