MOSFET 실험 2-Single Stage Amplifier 1

MOSFET 실험 2-Single Stage Amplifier 1_결과레포트

문서 내 토픽

1. Common Source Amplifier

실험 1을 통해 Common Source Amplifier 회로의 Gain과 함께 gm을 구하고, 실험 2에서 실험 1에서 구한 gm으로 Gain의 이론값과 실험에서 측정한 값을 비교해 보았다. 실험 1에서 측정한 Parameter를 이용해 실험 2의 Gain을 계산해 본 결과, 이론값과 실험값이 약 36%의 오차율을 보였다. 오차가 발생한 이유로는 입력 전압 Vin의 크기가 작아 오실로스코프에 정확한 값으로 나타나지 않았을 경우를 생각할 수 있다.
2. Common Source Amplifier with Rs

실험 2에서는 Source에 저항이 연결된 Common Source Amplifier 회로를 구현하였다. Source에 저항이 연결되면 Gain의 절대적 크기가 작아지는 경향성을 확인할 수 있었다. 실험 1과 비교했을 때 실험 2의 Gain의 절대적 크기가 작아졌기에 Source에 저항이 연결되면서 Gain의 절대적 크기가 작아지는 것을 확인할 수 있었다.

Easy AI와 토픽 톺아보기

1. Common Source Amplifier

The common source amplifier is a fundamental analog circuit topology that is widely used in electronic design. It consists of a single transistor with the source terminal connected to ground, the gate terminal as the input, and the drain terminal as the output. This configuration provides voltage gain by amplifying the input signal at the gate and producing an amplified output at the drain. The common source amplifier is known for its simplicity, high input impedance, and moderate voltage gain, making it suitable for a variety of applications, such as audio amplifiers, RF amplifiers, and buffer stages. Its versatility and ease of implementation make it a staple in analog circuit design.
2. Common Source Amplifier with Rs

The common source amplifier with a source resistor (Rs) is a variation of the basic common source amplifier that introduces additional features and performance characteristics. The addition of the source resistor provides several benefits, including: 1. Improved stability: The source resistor helps to stabilize the amplifier's operating point, making it less sensitive to variations in transistor parameters and power supply fluctuations. 2. Increased input impedance: The source resistor increases the input impedance of the amplifier, which can be beneficial in certain applications where a high input impedance is desired. 3. Adjustable gain: The gain of the amplifier can be adjusted by changing the value of the source resistor, allowing for more flexibility in the design. 4. Negative feedback: The source resistor introduces negative feedback, which can improve the amplifier's linearity, reduce distortion, and enhance the overall stability of the circuit. The common source amplifier with Rs is commonly used in analog circuit design, particularly in applications where stability, input impedance, and adjustable gain are important considerations. Its versatility and the additional features it provides make it a valuable tool in the analog designer's toolkit.

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