Title:
CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JP2021190896
Kind Code:
A
Abstract:
To provide a control circuit that suppresses variations in the characteristics of a Doherty amplifier.SOLUTION: In a power amplification module 1, a second integrated circuit 3 is a control circuit that controls a Doherty amplifier composed of a carrier amplifier 12 and a peak amplifier 13, which is included in a first integrated circuit 2, and in a resistance array 32, a resistance value is irreversibly adjustable, and includes resistance elements RF-1 to RF-n that determine the bias of the peak amplifier on the basis of the resistance value.SELECTED DRAWING: Figure 5
Inventors:
TANAKA SATOSHI
HARIMA FUMIO
ARAYASHIKI SATOSHI
HARIMA FUMIO
ARAYASHIKI SATOSHI
Application Number:
JP2020095643A
Publication Date:
December 13, 2021
Filing Date:
June 01, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO
International Classes:
H03F1/02
Attorney, Agent or Firm:
Sakai International Patent Office