전자회로실험 A+ 7주차 결과보고서(BJT Amp Biasing)

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"전자회로실험 A+ 7주차 결과보고서(BJT Amp Biasing)"에 대한 내용입니다.

목차

1. 실험목표
2. 실험과정
3. 실험결과
4. 실험결과 사진
5. PSPICE 결과
6. 분석 및 토의

본문내용

1. 실험목표
1) Learn about different types of biasing method.
2) Compare their advantages and disadvantages.
2. 실험과정
(1) Simple Biasing
a) Set up the circuit shown in Figure 6.1, with RB = 1.1 MΩ and RC=2.7 kΩ
b) Apply DC voltage VCC to 12V, and measure VBE, VCE, IB and IC. Record it at table 6.2.
c) Using measured data, calculate β. (β=IC/IB)
d) Change another transistor and repeat the measurement in procedure b ~ c.
e) Change RB = 570 kΩ and repeat the measurement in procedure b ~ d.
f) Based on the experiment, explain what conditions RB should be when using simple biasing.
(2) Resistive Divider Biasing
a)Set up the circuit shown in Figure 6.3, with R1 = 120 kΩ, R2 = 8.2 kΩ and RC = 2.7 kΩ.
b)Apply DC voltage VCC to 12 V, and measure VBE, VCE, IB and IC. Record it at table 6.3.
c)Using measured data, calculate β. (β=IC/IB)
d) Change another transistor and repeat the measurement in procedure b ~ c
e) Change R2 = 6.8 kΩ and measure IC, VBE and VCE. Record it at table 6.4.
f)Repeat and fill in the blank by changing R2 to the values specified in the table 6.4
g) Explain the relationship between VBE and IC when using resistive divider biasing.
(3) Resistive Divider Biasing with Emitter Degeneration
a) Add the RE = 560Ω to make circuit like Figure 6.4.
b)Apply DC voltage VCC to 12V, and measure VBE, VCE and IC. Record it at table 6.5.
c)Repeat and fill in the blank by changing R2 to the values specified in the table 6.5.
d)Explain the difference according to RE compared to resistive divider biasing.

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