AMPLIFIER CIRCUIT
PROBLEM TO BE SOLVED: To regulate a gain of an amplifier circuit according to the temperature.SOLUTION: An amplifier circuit which amplifies an input signal and outputs an amplification signal includes an amplifier element which outputs the amplification signal form an output terminal, an inductor h...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To regulate a gain of an amplifier circuit according to the temperature.SOLUTION: An amplifier circuit which amplifies an input signal and outputs an amplification signal includes an amplifier element which outputs the amplification signal form an output terminal, an inductor having one end to which a power source voltage is supplied and the other end connected to the output terminal of the amplifier element, a variable resistor connected to the inductor in parallel, and a resistance value adjusting circuit which adjusts a resistance value of the variable resistor according to the temperature.SELECTED DRAWING: Figure 1
【課題】増幅回路のゲインを温度に応じて調整する。【解決手段】入力信号を増幅して増幅信号を出力する増幅回路であって、出力端子から増幅信号を出力する増幅素子と、一端に電源電圧が供給され、他端が増幅素子の出力端子と接続されるインダクタと、インダクタと並列に接続される可変抵抗器と、温度に応じて可変抵抗器の抵抗値を調整する抵抗値調整回路と、を備える。【選択図】図１ |
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