File:DiodeGenCharacteristics1.jpg
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Summary
| Description |
English: Diagram of several diodes for small currents (0.5µA - 1 mA). The curved yellow on the left are Germanium Diodes AA 118 and AA 119. From left to right we than have: Schottky-Diodes with steep slope, Si-Diodes (which are identified with the more oblique slope). Finally we have Base-Emitter-Diodes of Transistors. Note the more or less parallel slope for the for different technological solutions. The diagram proofs that for "Transistor-Diodes" the connection of Collector to Base is a mandatory (s. horizontal arrows). Only then we have the long direct line of I(U), which is used for temperature measurement or amplifiers with logarithmic or exponential behaviour. Deutsch: Spannungs-Strom-Diagramm für verschiedenste Dioden bei kleinen Strömen (0,5 µA - 1 mA). Die gekrümmten Kurven links sind Germanium-Dioden (AA 118, AA 119). Dann folgen Schottky-Dioden. Danach sieht man, mit geringerer Steigung, diverse Si-Dioden. Am Ende sind Basis-Emitter-Dioden verschiedener Transistoren zu sehen.
Interessant ist der parallele Steigungsverlauf der verschiedenen Technologien. Wichtig ist auch noch die Feststellung, dass für den korrekten Betrieb einer "Transistor-Diode" immer der Kollektor mit der Basis verbunden sein muss (s. waagrechte Pfeile). Nur dieses erzeugt den sehr geraden Verlauf der Spannungskurve über mehrere Stromdekaden, der für Temperaturmessungen und Verstärker mit logarithmischer oder exponentieller Kennlinie benutzt wird. |
| Date | |
| Source | Own work |
| Author | Rolf Suessbrich |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:33, 2 July 2011 | | 1,376 × 720 (135 KB) | Rsuessrb | General slopes for particular diode types added |
| 18:58, 30 June 2011 |  | 1,086 × 604 (93 KB) | Rsuessrb |
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