R5.07-2A10
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-17.png)
R2.11-2A10
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-354.png)
R4.07-1A10
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-154.png)
R3.01-2A12
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-297.png)
R4.07-2A12
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-298.png)
R3.07-1A13
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-271.png)
R3.01-1A12
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-329.png)
H31.01-1A12
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-467-800x222.png)
解答
R5.07-2A10
5 530[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2024/01/image-4.png)
ワンポイント解説
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}\)
②\(V_{CE}=V-I_CR_C\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}\)
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-17.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{3m}{300}=0.01m\)
②\(V_{CE}=V-I_CR_C=12-3m×2k=6\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{6-0.7}{0.01m}=530k=530\)[kΩ]
R2.11-2A10
1 530[kΩ]
R4.07-1A10
2 730[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-154.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{2m}{200}=0.01m\)
②\(V_{CE}=V-I_CR_C=12-2m×2k=8\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{8-0.7}{0.01m}=730k=730\)[kΩ]
R3.01-2A12
3 1,060[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-297.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{1m}{200}=0.005m\)
②\(V_{CE}=V-I_CR_C=10-1m×4k=6\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{6-0.7}{0.005m}=1,060k=1,060\)[kΩ]
R4.07-2A12
4 0.01[mA] 440[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-298.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{2m}{200}=0.01m\)
②\(V_{CE}=V-I_CR_C=9-2m×2k=5\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{5-0.6}{0.01m}=440k=440\)[kΩ]
R3.07-1A13
2 20[μA] 170[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-271.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{2m}{100}=0.02m=20μ\)
②\(V_{CE}=V-I_CR_C=8-2m×2k=4\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{4-0.6}{20μ}=170k=170\)[kΩ]
R3.01-1A12
2 0.02[mA] 270[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-329.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{3m}{150}=0.02m\)
②\(V_{CE}=V-I_CR_C=12-3m×2k=6\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{6-0.6}{0.02m}=270k=270\)[kΩ]
H31.01-1A12
1 0.01[mA] 540[kΩ]
![](https://miyabisazanka.com/wp-content/uploads/2023/08/image-467-800x222.png)
エミッタ接地回路
①\(I_B=\frac{I_C}{h_{FE}}=\frac{2m}{200}=0.01m\)
②\(V_{CE}=V-I_CR_C=10-2m×2k=6\)
③\(R_B≒\frac{V_{CE}-V_{BE}}{I_B}=\frac{6-0.6}{0.01m}=540k=540\)[kΩ]
検索用キーワード
エミッタ接地増幅器 図に示すトランジスタ(Tr)のバイアス回路において、コレクタ電流 ベース抵抗 Trのエミッタ接地直流電流増幅率 回路のベース-エミッタ間電圧
図に示すトランジスタ(Tr)の自己バイアス回路において
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