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4_DC Biasing BJTs - MavDISK

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4_<strong>DC</strong> <strong>Biasing</strong> <strong>BJTs</strong> 5 of 31<br />

Saturation Region<br />

Saturation – 0.2V is<br />

better approximation,<br />

but use 0V for now.<br />

ICsat = (VCC- 0)/RC<br />

and in active region,<br />

IC = β IB or IB = ICmax/β<br />

In saturation<br />

IB is greater than ICmax/β<br />

There is<br />

more base current than needed.

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