Why same voltage is used as vcc and vee in differential amplifier?
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There are basically two types of Transistors:
Bipolar Junction Transistors (BJT)
Field Effect Transistors
BJT's have 3 terminals: Emitter, Base and Collector.
The VCC and VEE are the notations used for the voltages at various common voltage terminals.
VCC stands for Voltage at Common Collector that is the positive supply voltage.
VEE stands for Voltage at Common Emitter that is the negative supply voltage.
The TTL OCs (Transistor-Transistor Logic) are originally based upon BJT technology and these notations are used there.
Whenever a supply to the TTL is connected between collector and ground it is notified as VCC or positive supply voltage and if it is connected between emitter and ground it is notified as VEE or negative supply voltage and if it is connected between base and ground it is notified as VBB or base supply voltage.
Bipolar Junction Transistors (BJT)
Field Effect Transistors
BJT's have 3 terminals: Emitter, Base and Collector.
The VCC and VEE are the notations used for the voltages at various common voltage terminals.
VCC stands for Voltage at Common Collector that is the positive supply voltage.
VEE stands for Voltage at Common Emitter that is the negative supply voltage.
The TTL OCs (Transistor-Transistor Logic) are originally based upon BJT technology and these notations are used there.
Whenever a supply to the TTL is connected between collector and ground it is notified as VCC or positive supply voltage and if it is connected between emitter and ground it is notified as VEE or negative supply voltage and if it is connected between base and ground it is notified as VBB or base supply voltage.
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VCC stands for Voltage at Common Collector that is the positive supply voltage. VEE stands for Voltage at Common Emitter that is the negative supply voltage. The TTL OCs (Transistor-Transistor Logic) are originally based upon BJT technology and these notations are used there.
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