Title:
【発明の名称】増幅回路、送信機及び無線電話
Document Type and Number:
Japanese Patent JP2000508869
Kind Code:
A
Abstract:
An amplifier circuit, particularly for RF-purposes includes a main current stream of a controllable RF-semiconductor device having a control input, a control means having a control output coupled to the control input for controlling the main current stream, and a compensation circuit having a compensation output coupled to the control input for compensating the controllable semiconductor device. The compensation circuit is constructed so as to be temporarily active during a period of time wherein the control means do not supply a control output signal to the control input of the controllable semiconductor device. This provides a suitable solution for IC's and for dealing with DC-adjustment disturbances in a low DC-current dissipating manner caused by a lack of pull-down capability when the amplifier circuit operates at very high frequencies or at relatively large amplitudes.
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Inventors:
Fischer, Hendrik, Arland
Application Number:
JP52918498A
Publication Date:
July 11, 2000
Filing Date:
January 15, 1998
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
H03F1/02; H03F3/195; H03F3/50; H03F3/24; (IPC1-7): H03F1/02; H03F3/195; H03F3/24
Attorney, Agent or Firm:
Tadahiko Ito (1 outside)