Calculate Q-point (operating point) for common BJT transistor circuits.
Circuit Parameters
V
β
Ω
Ω
Ω
Ω
V
Calculation Results
Enter component values
Quick Reference
IcCollector Current
VceVoltage between C and E
βCurrent Gain
VbeBase-Emitter Bias (≈0.7V)
Overview
Transistor biasing is the process of setting a transistor's operating point (Q-point) for proper amplification. A stable Q-point ensures the signal isn't distorted.
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Pro Tips
Vbe is typically around 0.7V for silicon transistors.
Beta (hFE) usually ranges between 50 and 300 for small signal transistors.
Voltage divider bias is much more stable than simple fixed bias.
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Fun Facts
"The term 'transistor' is a combination of 'transfer' and 'resistor'."
"Transistors replaced bulky, hot, and fragile vacuum tubes in the mid-20th century."
"A modern processor can contain billions of tiny transistors."
