Title:
DIGITAL AMPLIFIER
Document Type and Number:
Japanese Patent JP3956800
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a digital amplifier provided with a current feedback circuit for feeding back an output current without increasing the resistance component of an output circuit.
SOLUTION: The digital amplifier is provided with the current feedback circuit 18 transformer-coupled to a low-pass filter 14 and for feeding back a current to a differential input terminal 20. The distortion of the low-pass filter 14 is reduced by the current feedback circuit 18 for detecting and feeding back current distortion which is the cause of the distortion.
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| JPH01314007 | MICROPHONE AMPLIFIER |
Inventors:
Toshiya Nakagaki
Application Number:
JP2002241425A
Publication Date:
August 08, 2007
Filing Date:
August 22, 2002
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H03F1/34; H03F3/217; (IPC1-7): H03F3/217; H03F1/34
Domestic Patent References:
| JP2001339256A | ||||
| JP11031928A | ||||
| JP4045019B2 | ||||
| JP57060270Y1 |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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