Title:
自動利得制御回路
Document Type and Number:
Japanese Patent JP3129673
Kind Code:
U
Abstract:
An automatic-gain control circuit includes a variable-gain amplifier, a peak-detecting circuit, and an adjustable charge/discharge circuit. The variable-gain amplifier receives an input signal and adjusts the input signal based on a gain-factor control signal for generating a corresponding output signal. The peak-detecting circuit is coupled to the variable-gain amplifier for generating a comparing signal according to a reference signal and the output signal. The adjustable charge/discharge circuit is coupled to the peak-detecting circuit and the variable-gain amplifier for outputting a charge current or a discharge current based on the comparing signal, thereby generating the gain-factor control signal. The ratio between the charge current and the discharge current is adjustable.
Inventors:
Xie Yoshihama
Chen Nobumitsu
Tetsu Wei
Chen Nobumitsu
Tetsu Wei
Application Number:
JP2006010144U
Publication Date:
March 01, 2007
Filing Date:
December 14, 2006
Export Citation:
Assignee:
Princeton Technology Corp.
International Classes:
H03G3/30
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito
Previous Patent: JPH03129672
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