Title:
増幅装置
Document Type and Number:
Japanese Patent JP5333111
Kind Code:
B2
Abstract:
An amplifying device includes a selecting section that selects one of a first power source potential and a second power source potential which are different from each other, a potential generating circuit that generates a third power source potential from the power source potential selected by the selecting section, an amplifier that operates with supply of the first power source potential and the third power source potential, and a controlling circuit that variably controls a target to be selected by the selecting section in accordance with at least one of an amplitude of a signal on an input side of the amplifier, an amplitude of a signal on an output side of the amplifier, and the third power source potential.
Inventors:
Tatsuya Kishii
Hiroto Tsuchiya
Nakamura Katsuyoshi
Miyazaki Masato
Akihisa Himeno
Hiroto Tsuchiya
Nakamura Katsuyoshi
Miyazaki Masato
Akihisa Himeno
Application Number:
JP2009216336A
Publication Date:
November 06, 2013
Filing Date:
September 18, 2009
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
H03F1/02; H03F3/181
Domestic Patent References:
| JP8111615A | ||||
| JP2008289175A | ||||
| JP2008244623A | ||||
| JP2007189434A | ||||
| JP2010130136A |
Foreign References:
| WO1998044621A1 |
Attorney, Agent or Firm:
Akira Obayashi
Yashiro Hitoshi
Taro Takahashi
Yashiro Hitoshi
Taro Takahashi