Digital to analog converter with power amplification
US4121205A · kind A · utility
5Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/804
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier has an input terminal supplied with a PCM (pulse code modulated) signal and a plurality of power supplies, each producing a voltage weighted according to the order of bits of the PCM-code. Switching means are controlled by the PCM input signal to connect selective ones of the power supplies in series to a load in response to the PCM signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.