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Darlington Pair
f-alpha.net » Electronics » Basic Circuits » Darlington Pair » Let's go... » Experiment 7 - PNP Darlington Pair

Experiment 7 - The PNP Darlington Pair

Build the circuit shown using only the PNP transistors BC 557 B.

PNP Darlington pair circuit. (Enlarge)

This circuit is also characterized by a large gain. However, you have to turn the potentiometer P1 in the opposite direction, analogous to the simple PNP transistor circuit.

The following also applies to the PNP Darlington Schaltung...

  • the gain βD = βT1 × βT2.
  • a base-emitter voltage UBE = 1,30 V.

Circuit Diagram of a PNP Darlington Pair.

In the next experiment, again you look at a Darlington transistor.

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