Title:
Radio frequency electric power amplification circuit
Document Type and Number:
Japanese Patent JP6141438
Kind Code:
B2
Abstract:
A radio frequency (RF) power amplifier circuit with spur cancellation for GSM/GPRS/EDGE transceivers is disclosed. There is a power amplifier with an RF input, an RF output, and a voltage supply input. Additionally, there is an adjustable DC-DC converter with an input connected to a battery, an output connected to the voltage supply input of the power amplifier with a DC supply voltage signal generated thereby. A spur compensator generates an error control signal responsive to spurs in the DC supply voltage signal. The error control signal is applied to the RF input of the power amplifier.
Inventors:
Gorbachev Alexandre
Application Number:
JP2015539950A
Publication Date:
June 07, 2017
Filing Date:
October 30, 2013
Export Citation:
Assignee:
SKYWORKS SOLUTIONS,INC.
International Classes:
H03F1/26; H03F3/21; H04B1/04
Domestic Patent References:
| JP2009100197A | ||||
| JP10313220A | ||||
| JP2004187446A | ||||
| JP2010118918A | ||||
| JP2001257540A | ||||
| JP8316755A | ||||
| JP2001218453A | ||||
| JP201210579A | ||||
| JP5235647A |
Foreign References:
| US7132891 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara
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