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Electronics Engineering

fα for CB Calculator

Electronics Engineering

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fα for CB

Equation and meaning

\[f_alpha = ( ( 1 + h_fe ) / ( 2 \cdot \pi \cdot r_b_prime \cdot e \cdot ( C_C + C_e ) ) )\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

C_C — C C
Enter this value unless it is the selected unknown.
C_e — C E
Enter this value unless it is the selected unknown.
e — E
Enter this value unless it is the selected unknown.
f_alpha — F Alpha
Enter this value unless it is the selected unknown.
h_fe — H Fe
Enter this value unless it is the selected unknown.
r_b_prime — R B Prime
Enter this value unless it is the selected unknown.
Equation 2

Equation and meaning

\[f_alpha = ( 1 + h_fe ) \cdot f_beta\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

f_alpha — F Alpha
Enter this value unless it is the selected unknown.
f_beta — F Beta
Enter this value unless it is the selected unknown.
h_fe — H Fe
Enter this value unless it is the selected unknown.
Equation 3

Equation and meaning

\[f_{alpha} = \left(1 + \beta\right) \cdot f_{beta}\]

Use this equation when the shown variables describe your problem. Keep all inputs in compatible units; the calculator converts them to SI internally before solving.

Variables in this formula

beta — Beta
Enter this value unless it is the selected unknown.
f_alpha — F Alpha
Enter this value unless it is the selected unknown.
f_beta — F Beta
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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