Active snubber for improving stability of headphone amplifiers
US8437483B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1091
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Audio amplifiers, particularly those employed with headphones, use snubbers to suppress or snub signals within a particular frequency range. Conventional resistive and resistor-capacitor (RC) type snubbers have a number of drawbacks (i.e., require external components and high power consumption). Here, an active snubber is provided that allows for suppression in a desired frequency range without the need for external components and with relatively small footprint and a relatively small power increase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.