Title:
POWER AMPLIFIER
Document Type and Number:
Japanese Patent JP3186113
Kind Code:
B2
Abstract:
PURPOSE: To provide the power amplifier with a distortion correction circuit correcting automatically a change in a distortion of a signal frequency arranged at plural bands depending on the frequency characteristic provided to the power amplifier.
CONSTITUTION: An output side of a power amplifier 3 is provided with a signal detector 5, distortion detectors 8, 9, plural band pass filters 6, 7, a subtractor 11 and a comparator 12 to maximize the detection voltage difference of the S/N and a feedback is applied to a distortion correction circuit 2. Thus, the distortion of plural signals over a wide band is suppressed.
Inventors:
Jun Mizoe
Application Number:
JP25735091A
Publication Date:
July 11, 2001
Filing Date:
October 04, 1991
Export Citation:
Assignee:
NEC
International Classes:
H03F1/32; (IPC1-7): H03F1/32
Domestic Patent References:
| JP3109825A | ||||
| JP63232530A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)