Demodulation apparatus for digital audio amplifier
US6867646B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2003 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | May 7, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2001/0035
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a demodulation apparatus for a digital audio amplifier capable of solving a space, cost and heat generation of the digital audio amplifier. The demodulation apparatus includes a first inductor connected between a positive digital audio signal output terminal and one end of a load, a second inductor connected between a negative digital audio signal output terminal and the other end of the load, and magnetically coupled to the first inductor, a first capacitor connected between the one end of the load and ground and coupled to the first inductor for serving as a low-pass filter, and a second capacitor connected between the other end of the load and ground and connected to the second inductor for serving as a low-pass filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.