In electronics, a common-source amplifier is one of three basic single-stage field-effect transistor (FET) amplifier topologies, typically used as a voltage or transconductance amplifier. The easiest way to tell if a FET is common source, common drain, or common gate is to examine where the signal enters and leaves. The remaining terminal is what is known as "common". In this example, the signal enters the gate, and exits the drain. The only terminal remaining is the source. This is a common-source FET circuit. The analogous bipolar junction transistor circuit may be viewed as a transconductance amplifier or as a voltage amplifier. (See classification of amplifiers). As a transconductance amplifier, the input voltage is seen as modulating the current going to the load. As a voltage amplifi
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| - Common source (en)
- Source commune (fr)
- Source comune (it)
- ソース接地回路 (ja)
- 共源极 (zh)
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| - En électronique, un Source commune est un type d'amplificateur électronique utilisant un transistor à effet de champ. Le terme de source commune vient du fait que l'électrode « source » du transistor est reliée au zéro. Le montage en source commune est typiquement utilisé comme amplificateur de tension. (fr)
- ソース接地回路（ソースせっちかいろ）またはソース共通回路（ソースきょうつうかいろ、英: Common source）は、電界効果トランジスタを用いた基本的な増幅回路の一つ。入力インピーダンスが高く、出力インピーダンスも比較的高い。電圧増幅に用いるのが一般的。バイポーラトランジスタを用いた同様の回路にエミッタ接地回路がある。 (ja)
- 在电子学中，共源极（英語：common-source）放大器是场效应管（field-effect transistor (FET)）放大器电路的三种基本组成方式之一（另外两种为共栅极和共漏极），通常被用在电压或跨导放大器中。辨识一个场效应管放大器电路是共源极、共栅极还是共漏极的简易方法为，检查信号输入和输出的通路，剩余的那一端即为“公共端”。在右图的例子中，信号从栅极进入，从漏极离开。唯一剩余的一端为源极，因此它是共源极。在双极性晶体管中，类似的概念称作共射极。 (zh)
- In electronics, a common-source amplifier is one of three basic single-stage field-effect transistor (FET) amplifier topologies, typically used as a voltage or transconductance amplifier. The easiest way to tell if a FET is common source, common drain, or common gate is to examine where the signal enters and leaves. The remaining terminal is what is known as "common". In this example, the signal enters the gate, and exits the drain. The only terminal remaining is the source. This is a common-source FET circuit. The analogous bipolar junction transistor circuit may be viewed as a transconductance amplifier or as a voltage amplifier. (See classification of amplifiers). As a transconductance amplifier, the input voltage is seen as modulating the current going to the load. As a voltage amplifi (en)
- In elettronica un amplificatore a source comune o common source è una delle tre tipologie fondamentali di amplificatori a singolo stadio costruita con transistor di tipo FET. Questa configurazione è utilizzata come un o di transconduttanza. Il modo più semplice per capire se l'amplificatore è source comune, o è esaminare dove il segnale entra e dove esce. Il restante terminale è detto "comune". In questo caso il segnale entra dal gate ed esce dal quindi si tratta di una configurazione common source. La sua controparte BJT è l'amplificatore ad emettitore comune. (it)
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| - In electronics, a common-source amplifier is one of three basic single-stage field-effect transistor (FET) amplifier topologies, typically used as a voltage or transconductance amplifier. The easiest way to tell if a FET is common source, common drain, or common gate is to examine where the signal enters and leaves. The remaining terminal is what is known as "common". In this example, the signal enters the gate, and exits the drain. The only terminal remaining is the source. This is a common-source FET circuit. The analogous bipolar junction transistor circuit may be viewed as a transconductance amplifier or as a voltage amplifier. (See classification of amplifiers). As a transconductance amplifier, the input voltage is seen as modulating the current going to the load. As a voltage amplifier, input voltage modulates the current flowing through the FET, changing the voltage across the output resistance according to Ohm's law. However, the FET device's output resistance typically is not high enough for a reasonable transconductance amplifier (ideally infinite), nor low enough for a decent voltage amplifier (ideally zero). Another major drawback is the amplifier's limited high-frequency response. Therefore, in practice the output often is routed through either a voltage follower (common-drain or CD stage), or a current follower (common-gate or CG stage), to obtain more favorable output and frequency characteristics. The CS–CG combination is called a cascode amplifier. (en)
- En électronique, un Source commune est un type d'amplificateur électronique utilisant un transistor à effet de champ. Le terme de source commune vient du fait que l'électrode « source » du transistor est reliée au zéro. Le montage en source commune est typiquement utilisé comme amplificateur de tension. (fr)
- In elettronica un amplificatore a source comune o common source è una delle tre tipologie fondamentali di amplificatori a singolo stadio costruita con transistor di tipo FET. Questa configurazione è utilizzata come un o di transconduttanza. Il modo più semplice per capire se l'amplificatore è source comune, o è esaminare dove il segnale entra e dove esce. Il restante terminale è detto "comune". In questo caso il segnale entra dal gate ed esce dal quindi si tratta di una configurazione common source. La sua controparte BJT è l'amplificatore ad emettitore comune. Nel caso di un amplificatore di transconduttanza la tensione di ingresso modula la corrente che passa nel carico. Nel caso di un amplificatore di tensione la tensione di input modula la corrente che attraversa il transistor modificando la tensione ai capi del carico. Nelle applicazioni pratiche l'output di solito è collegato ad un voltage follower (drain comune o stadio CD), o ad un current follower (gate comune o stadio CG), per migliorare le prestazioni dell'amplificatore. (it)
- ソース接地回路（ソースせっちかいろ）またはソース共通回路（ソースきょうつうかいろ、英: Common source）は、電界効果トランジスタを用いた基本的な増幅回路の一つ。入力インピーダンスが高く、出力インピーダンスも比較的高い。電圧増幅に用いるのが一般的。バイポーラトランジスタを用いた同様の回路にエミッタ接地回路がある。 (ja)
- 在电子学中，共源极（英語：common-source）放大器是场效应管（field-effect transistor (FET)）放大器电路的三种基本组成方式之一（另外两种为共栅极和共漏极），通常被用在电压或跨导放大器中。辨识一个场效应管放大器电路是共源极、共栅极还是共漏极的简易方法为，检查信号输入和输出的通路，剩余的那一端即为“公共端”。在右图的例子中，信号从栅极进入，从漏极离开。唯一剩余的一端为源极，因此它是共源极。在双极性晶体管中，类似的概念称作共射极。 (zh)
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