Thermal overload and resonant motion control for an audio speaker
US7113603B1 · kind B1 · utility
8Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1999 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Sep 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermal overload and resonant motion control circuit is provided for an audio speaker, the circuit generating a feedback signal to control the input applied to the speaker, which feedback signal is dependent on both the drive current to the speaker and the speaker impedance. More specifically, the feedback signal has a voltage which is substantially equally to the absolute value of K(bv−ai)H(s); where,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.