Contents
What is saturation region in CE configuration?
The region to the left of VCE(sat) is called the saturation region. In the active region of a common emitter amplifier the collector-base junction is reverse-biased, while the base-emitter junction is forward-biased.
What is the characteristics of CE configuration?
Common Emitter (CE) Configuration of Transistor
| Transistor Characteristics | Definition |
|---|---|
| Current Transfer Characteristics | The variation of collector current(IC) with the base current(IB), keeping Collector-Emitter voltage(VCE) constant. The resulting current gain has a value greater than 1. |
How is the input current measured in CE configuration?
The input current in CE configuration is measured in microamperes (μA) whereas the input current in CB configuration is measured in milliamperes (mA). In common emitter (CE) configuration, the input current (IB) is produced in the base region which is lightly doped and has small width.
What is the current gain of a transistor in CE configuration?
The current gain of a transistor in CE configuration is defined as the ratio of output current or collector current (IC) to the input current or base current (IB). The current gain of a transistor in CE configuration is high. Therefore, the transistor in CE configuration is used for amplifying the current.
How are output characteristics of common base configuration obtained?
The output characteristics of common base configuration are obtained between output current and output voltage with constant input current. First keep the emitter current constant and vary the VCB value for different points, now record the IC values at each point.
How is the base current represented in emitter amplification?
In common emitter amplification, the output current is the collector current I C, and the input current is the base current I B. In other words, the ratio of change in collector current with respect to base current is known as the base amplification factor. It is represented by β (beta).