Output signal converter for tube amplifiers
US6175271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/549
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The output signal converter for a tube amplifier includes semiconductor devices for amplifying or attenuating an output signal of the tube amplifier while maintaining output properties of the tube amplifier. The output signal converter in preferred embodiments has an output transformer (1) connected to the tube amplifier, a current amplifier and a voltage amplifier serially connected with each other via a node, and a speaker (4). The current amplification factor (Ac) of the current amplifier (2) and the voltage amplification factor (Av) of the voltage amplifier (3) are related according to the following equation: Ac*Av=-k, wherein k is a constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.