Class-D amplifier input structure
US6016075A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1997 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/2171
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A Class-D amplifier using an audio signal input structure with monolithic devices forming integrated circuit configurations to receive audio input signals to be amplified. One monolithic device used to couple audio input ports to receive respective audio input signals to be amplified and feedback network to receive feedback signals is a pulse-width-modulator. Another monolithic device is used to form an integrated circuit with a pulse-width-modulated square wave input ports. Field effect transistor driver circuits are connected to respective pulse-with-modulated square wave signal input ports. Filter circuits coupled to the integrated circuits are used to receive and filter the amplified square wave signals and produce continuous amplified audio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.