Power amplifying apparatus for wireless transmitter
US5126688A · kind A · utility
85Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Mar 20, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/004
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifying apparatus according to the present invention can provide a stable electric power output with wide range by controlling both of the output amplifier for amplifying the electric power and the pre-amplifier disposed at the front of the output amplifier. Furthermore, in order to avoid the disadvantage that a transmission spectrum is expanded because of no supply of a stable voltage to be supplied to the electric power amplifier, thereby producing a cross-talk, a stabilizing power source circuit is provided to stabilize the voltage between the power amplifier and the power source for supplying the voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.