Switching amplifier and control method thereof
US7388431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2006 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jul 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/384
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a switching amplifier for generating a pair of output signals of square waves in response to an input signal, when the input signal is zero, the first output signal has a first duty cycle and the second output signal has a second duty cycle; when the input signal is greater than zero, the first output signal has a third duty cycle varying with the input signal and the second output signal still has the second duty cycle; and when the input signal is less than zero, the first output signal has the first duty cycle and the second output signal has a fourth duty cycle varying with the input signal. The first and second duty cycles are very small but equal to each other in size, and the phase difference between the first and second output signals could range from 0 to 180 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.