For K-12 Students · Transistor Bias
Transistor Bias for a power supply
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a power supply live below — adjust the inputs and watch it respond, right in your browser.
BJT Transistor BiasLive
voltage-divider Q-point
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Voltage-divider bias sets a transistor's operating point (Q-point) stably against variations in β. The base voltage fixes the emitter current, and the collector-emitter voltage falls on the DC load line. For a clean amplifier, the Q-point should sit near the middle of the active region.
Data Inspector
Collector current Ic2.52 mA
Vce8.22 V
Base voltage2.11 V
Regionactive
Governing equation
Reading this result: The Q-point sits near mid-load-line — the sweet spot for a linear amplifier, giving the largest symmetric output swing.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Transistor Bias for a power supply" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.