Why VCC is greater than VBB in transistor?

The polarities of the terminals are important when we define the voltages of the transistor. The bias voltage sources are connected to the transistor via resistors. The collector bias voltage source is designated VCC and is always much larger than VBB, to ensure that the CB junction is reverse biased.

What is the difference between VCC and VBB?

VCC= DC voltage at the collector w.r.t ground. VCE= DC voltage between collector and emitter w.r.t ground. VBB=DC voltage at the base w.r.t ground.

What is VCC and VBB in transistor?

What does VBB mean transistor?

VBB is the base voltage of a bipolar junction transistor, in other words, the voltage that falls across the base of the transistor. VBB is an important value of a transistor because in order to find the quiescient current of the transistor, IEQ, VBB must be known.

Where is VBB transistor?

Use the formula Vbb = Vcc * [R2/(R1 + R2)]. Using the numbers from the previous examples, the equation works as follows: Vbb = 12 * [15/(25 + 15)] = 12 * (15/40) = 12 * 0.375 = 4.5 volts. Calculate the emitter current, which is the current flowing from the emitter to ground.

Why do we use VCC?

Vcc and Vdd are the positive supply voltage to an IC or circuit. Vss and Vee are the negative supply voltage to an IC or electronic circuit. Why different names are used? Vss refers that the supply voltage pin is connected to the source of the transistor.

Where is VBB in transistor?

Calculate the base voltage, Vbb, which is the voltage measured at the base of the transistor. Use the formula Vbb = Vcc * [R2/(R1 + R2)]. Using the numbers from the previous examples, the equation works as follows: Vbb = 12 * [15/(25 + 15)] = 12 * (15/40) = 12 * 0.375 = 4.5 volts.

What is VCC in a circuit?

VCC (Voltage Common Collector) is the higher voltage with respect to GND (ground). VCC is the power input of a device. When the only positive power supply is used then VSS (Voltage Source Supply) means ground or zero.