BASE WIDTH MODULATION IN TRANSISTORS
EARLY EFFECT AND BASE-WIDTH MODULATION IN TRANSISTORS (BJT) A BJT Transistor consisting of three terminals, collector, base, and Emitter and two Junctions, Emitter-Base Junction and Collector-Base Junction. Normally a bipolar Junction Transistor operates on three regions 1. ACTIVE REGION 2. SATURATION REGION 3. CUT-OFF REGION It is well explained in my previous article about Different Operating Modes and Biasing of Transistors,i hope you read it. Now back to our topic, EARLY EFFECT AND BASE-WIDTH MODULATION . In active region, the Emitter-Base Junction is forward biased and Collector-Base Junction is reverse biased, so the barrier width at Emitter-Base Junction is negligible in comparison with the space charge width at Collector-Base Junction. The transition or space-charge region at a Junction is the region of uncovered charges on both sides of the Junction. As the Voltage applied across the Junction increases, the transition region penetrates deeper into the Collector-Base Junction. ...