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這個計算器計算偏置電壓和電流，以及增益和頻率響應。
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| V C (Collector Voltage)集電極電壓 | (V) |
| V E (Emitter Voltage)發射極電壓 | (V) |
| V B (Base Voltage)基極電壓 | (V) |
| I E (Emitter Voltage)發射極電壓 | (mA) |
| I C (Collector Voltage)集電極電壓 | (mA) |
| I B (Base Voltage)基極電壓 | (mA) |
| g m (Transconductance)跨導 | |
| r π (Input Resistance of BJT at low freq)晶體管輸入阻抗,低頻率的 | (Ω) |
| r e | (Ω) |
| R IN (Input Resistance of Amp)放大器輸入阻抗 | (KΩ) |
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| A (Amplifier Voltage Gain)放大器的電壓增益 | |
| f P1 | (MHz) |
| f P2 | (MHz) |
Equations
V B= VP*R2/(R1+R2)
V E= V B-V BE
I E=V E/R E
Alpha= Beta/(Beta+1);
I C= Alpha*I E
V C= VP - I C*R C/2
I B=I C/Beta
g m = Ic/25mA
r e = Alpha/g m
r π = Beta/g m
A= Alpha* r π * R C /( R s +2*r π )/r e
f P1 =1/( 2*π*( R s ||2*r π )*( C BE/2 + C BC ))
f P2 =1/( 2*π* R C *C BC )
f T = g m /(2π*(C BE +C BC ))