Modulation scheme for filterless switching amplifiers
US6211728A · kind A · utility
53Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Nov 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/384
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Class-D switching amplifier (20) having a terinary modulation scheme implemented in an H-bridge configuration. The present invention has four states of operation, and achieves increased efficiency and reduced cost by delivering current to the load only when needed, and once delivered, maintaining the current. The Class-D switching amplifier eliminates the need for post amplifier filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.