# What is collector base voltage?

Table of Contents

## What is collector base voltage?

The voltage between the collector and emitter terminals under conditions of base current or base-emitter voltage beyond which the collector current remains essentially constant as the base current or voltage is increased.

## How is VB calculated?

- Vb = VccR2R1+R2 and.
- That is valid if R1R2R1+R2 << βRe.
- Rx = R1R2R1+R2.
- V1 = VccR2R1+R2.

## How do you calculate IC and VCE?

Calculate Vce using the formula Vce= Vcc – [Ie * (Rc + Re)]. Using the numbers from the previous examples, the equation works as follows: Vce = 12 – 0.00053 (3000 + 7000) = 12 – 5.3 = 6.7 volts.

## What is Icbo and ICEO?

ICBO is the current that flows across collector base junction under reverse bias condition with emitter lead open. Another transistor leakage current is ICEO (Where, I stands for current, CE stand for collector emitter terminal and O tells us that base terminal is open). 1.

## How do you calculate DC gain?

An their ratio βdc = Ic/Ib. This is the DC current gain.

## What is Vebo BJT?

vebo bjt. Hi, Vebo is the emitter to base voltage. It is the max reverse voltage (or breakdown voltage), typicaly comprised between 3v and 5v.

## What is VBE in PNP transistor?

Where: Ib is the base current, Vb is the base bias voltage, Vbe is the base-emitter volt drop (0.7v) and Rb is the base input resistor. Increasing Ib, Vbe slowly increases to 0.7V but Ic rises exponentially. Example No2. An NPN Transistor has a DC base bias voltage, Vb of 10v and an input base resistor, Rb of 100kΩ.

## How do you calculate base voltage?

This can be done using the formula: Vcc = Vrc + Vrb + Vbe + (Ic + Ib)Rc + IbRb + Vbe, where “Vrc” is the voltage across the collector resistor; “Vrb” is the voltage across the base resistor (connected across the base) and the junction between the collector resistor and the transistor collector; and “Vbe” is the voltage …

## How do I get VCE?

To complete VCE you need to complete a minimum of 16 subjects (units) across year 11 and 12. It doesn’t matter what your results are – as long as you complete all of your subjects, you’ll get your VCE. If you don’t complete enough subjects to finish VCE, you’ll be sent a letter saying so. You also won’t get an ATAR.

## What is the base current of a collector?

Since the beta is stated as 125, and the base current is calculated as 6.2uA, the collector current must be (6.2uA * 125) .775mA. That current through a 5K resistor produces a drop of 3.875V across the resistor. The collector voltage must be Vcc – 3.875, or 16.125V.

## Why is the voltage at the collector lower than 5 V?

It’s true that some voltage is dropped across the resistor R C, and consequently, the voltage at the collector is lower than 5 V, but we’ll assume that the collector resistance and the initial collector current are small enough to maintain conditions of reverse-bias for the BC junction.

## What does VBE mean on a resistor resistor?

Vbe means voltage on the base relative to the emitter. Since the beta is stated as 125, and the base current is calculated as 6.2uA, the collector current must be (6.2uA * 125) .775mA. That current through a 5K resistor produces a drop of 3.875V across the resistor. The collector voltage must be Vcc – 3.875, or 16.125V.

## Which is the correct voltage between collector and emitter?

Yours are correct only in this specific circuit if we assume the negative terminals of the voltage supplies are at gnd. In this specific circuit with that assumption, they are equivalent, but that’s only because the Emitter is grounded (at 0 volts), therefore, Vbe = Vb and Vce = Vc.