Title:
LOW-NOISE CONVERTER
Document Type and Number:
Japanese Patent JP2004312668
Kind Code:
A
Abstract:
To provide a low-noise converter (LNB) with reduced power consumption.
A plurality of output voltage regulators are built in a power supply circuit 36 of the low-noise converter. An output voltage regulator 40, a local oscillation circuit 13, an output voltage regulator 42 and an LNA 5 are serially connected in a direction where a power supply current flows. Thus, the voltage adjustment width of the output voltage regulator can be reduced, and power loss can be suppressed. A value of a current flowing to the power supply circuit 36 can be also reduced. Thus, the low-noise converter with reduced power consumption can be obtained.
Inventors:
MOTOYAMA KOJI
Application Number:
JP2003372999A
Publication Date:
November 04, 2004
Filing Date:
October 31, 2003
Export Citation:
Assignee:
SHARP KK
International Classes:
H04N7/20; H03D7/00; H03F1/02; H03F1/26; H04B1/16; H04B1/18; H04B1/04; (IPC1-7): H04B1/18; H04N7/20
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai