Bipolar current mirror base current compensated — Free Electronics Illustration

Electronics

Bipolar current mirror base current compensated

Schematic-style clipart of a three-transistor bipolar current mirror with base-current compensation. Two matched NPN transistors labeled Q1 and Q2 stand side by side with tied bases and emitters connected to a common lower rail. A third NPN transistor labeled Q3 is placed to the left or below, with its emitter feeding the shared base node of Q1 and Q2. The collector of Q1 is tied to its base-side bias branch carrying IREF, the collector of Q2 is the output branch labeled IO, and a node labeled x appears at the junction associated with Q3 and the reference path. Black line-art in textbook circuit-diagram style.

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