Three working states of transistors - PNP type - cut-off state
Source: InternetPublisher:通通 Keywords: Transistor BSP collector Updated: 2020/07/04
Cut-off state:
When "≤0", the collector current is very
small, the transistor is equivalent to cut-off, and the power supply
voltage mound is almost entirely applied to both ends of the tube.
Amplification state:
"Gradually increasing from O, the collector current
J also increases according to a certain proportion. A small
change in I causes a large change. The transistor
plays an amplifying role.
Saturation state:
When the three-input tube is saturated, the voltage drop across the tube is very
small, and almost all of the power supply voltage E is applied to the collector
load. The larger the I port at both ends of the collector load resistor, the more
sensitive the control.
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