Chapter 4: Difference between revisions
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*The arrow is for the emitter current. For an NPN the current flows into the collector. For a PNP the current flows out of the collector. |
*The arrow is for the emitter current. For an NPN the current flows into the collector. For a PNP the current flows out of the collector. |
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===How a BJT works=== |
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*Base-emitter junction is forward biased |
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==Large-Signal DC models== |
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*Base-collector junction is reverse biased |
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{| class="wikitable" border="1" style="text-align:center;" |
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! Base-Emitter !! Collector-Emitter !! Region |
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| FB|| FB || Saturation |
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| FB|| RB || Active |
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| RB || FB || Reverse |
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| RB || RB || Cutoff |
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Revision as of 10:32, 3 March 2010
Bipolar Junction Transistor
- NPN: Not Pointing iN
- PNP: Pointing iN Please
- The arrow is for the emitter current. For an NPN the current flows into the collector. For a PNP the current flows out of the collector.
How a BJT works
Large-Signal DC models
| Base-Emitter | Collector-Emitter | Region |
|---|---|---|
| FB | FB | Saturation |
| FB | RB | Active |
| RB | FB | Reverse |
| RB | RB | Cutoff |