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Base Current of PNP Transistor using Saturation Current Formula

GoBase Current of PNP Transistor given Emitter Current Formula

GoBase Current of PNP Transistor using Collector Current Formula

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Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on. Check FAQs

I B = (\frac{I sat}{β}) \cdot e^{\frac{V BE}{V t}}

I_B - Base Current?I_sat - Saturation Current?β - Common Emitter Current Gain?V_BE - Base-Emitter Voltage?V_t - Thermal Voltage?

Base Current of PNP Transistor using Saturation Current Example

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Here is how the Base Current of PNP Transistor using Saturation Current equation looks like with Values.

Here is how the Base Current of PNP Transistor using Saturation Current equation looks like with Units.

Here is how the Base Current of PNP Transistor using Saturation Current equation looks like.

0.0771 = (\frac{1.675}{65}) \cdot e^{\frac{5.15}{4.7}}

0.0771mA = (\frac{1.675mA}{65}) \cdot e^{\frac{5.15V}{4.7V}}

0.0771 = (\frac{1.675}{65}) \cdot e^{\frac{5.15}{4.7}}

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Base Current of PNP Transistor using Saturation Current Solution

Follow our step by step solution on how to calculate Base Current of PNP Transistor using Saturation Current?

FIRST Step Consider the formula

I B = (\frac{I sat}{β}) \cdot e^{\frac{V BE}{V t}}

Next Step Substitute values of Variables

∴

I B = (\frac{1.675mA}{65}) \cdot e^{\frac{5.15V}{4.7V}}

Next Step Convert Units

∴

I B = (\frac{0.0017A}{65}) \cdot e^{\frac{5.15V}{4.7V}}

Next Step Prepare to Evaluate

∴

I B = (\frac{0.0017}{65}) \cdot e^{\frac{5.15}{4.7}}

Next Step Evaluate

∴

I B = 7.70863217186262E-05A

Next Step Convert to Output's Unit

∴

I B = 0.0770863217186262mA

LAST Step Rounding Answer

∴

I B = 0.0771mA

Base Current of PNP Transistor using Saturation Current Formula Elements

Variables

Base Current

Base Current is a crucial current of bipolar junction transistor. Without the base current, the transistor cannot turn on.

Symbol: I_B

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Base Current

Saturation Current

Saturation Current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.

Symbol: I_sat

Measurement: Electric CurrentUnit: mA

Note: Value should be greater than 0.

Formulas to find Saturation Current

Common Emitter Current Gain

Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.

Symbol: β

Measurement: NAUnit: Unitless

Note: Value should be between 49 to 201.

Formulas to find Common Emitter Current Gain

Base-Emitter Voltage

Base-Emitter Voltage is the forward voltage between the base and emitter of the transistor.

Symbol: V_BE

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Base-Emitter Voltage

Thermal Voltage

Thermal Voltage is the voltage produced within the p-n junction.

Symbol: V_t

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Thermal Voltage

Other Formulas to find Base Current

Go Base Current of PNP Transistor given Emitter Current

I B = \frac{I e}{β + 1}

Go Base Current of PNP Transistor using Collector Current

I B = \frac{I c}{β}

Go Base Current of PNP Transistor using Common-Base Current Gain

I B = (1 - α) \cdot I e

Other formulas in Base Current category

Go Common-Base Current Gain

α = \frac{β}{β + 1}

Go Intrinsic Gain of BJT

A o = \frac{V A}{V t}

Go Total Power Dissipated in BJT

P = V CE \cdot I c + V BE \cdot I B

Go Common Mode Rejection Ratio

CMRR = 20 \cdot \log 10 (\frac{A d}{A cm})

How to Evaluate Base Current of PNP Transistor using Saturation Current?

Base Current of PNP Transistor using Saturation Current evaluator uses Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage) to evaluate the Base Current, The Base Current of PNP Transistor using Saturation Current is proportional to the number of electrons injected into the base. In a PNP transistor, the base current is carried by holes, which are minority carriers in the P-type material. When a positive voltage is applied to the base with respect to the emitter, holes from the base region are injected into the emitter region, and a current flows through the transistor. Base Current is denoted by I_B symbol.

How to evaluate Base Current of PNP Transistor using Saturation Current using this online evaluator? To use this online evaluator for Base Current of PNP Transistor using Saturation Current, enter Saturation Current (I_sat), Common Emitter Current Gain (β), Base-Emitter Voltage (V_BE) & Thermal Voltage (V_t) and hit the calculate button.

FAQs on Base Current of PNP Transistor using Saturation Current

What is the formula to find Base Current of PNP Transistor using Saturation Current?

The formula of Base Current of PNP Transistor using Saturation Current is expressed as Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage). Here is an example- 77.08632 = (0.001675/65)*e^(5.15/4.7).

How to calculate Base Current of PNP Transistor using Saturation Current?

With Saturation Current (I_sat), Common Emitter Current Gain (β), Base-Emitter Voltage (V_BE) & Thermal Voltage (V_t) we can find Base Current of PNP Transistor using Saturation Current using the formula - Base Current = (Saturation Current/Common Emitter Current Gain)*e^(Base-Emitter Voltage/Thermal Voltage).

What are the other ways to Calculate Base Current?

Here are the different ways to Calculate Base Current-

Base Current=Emitter Current/(Common Emitter Current Gain+1)
Base Current=Collector Current/Common Emitter Current Gain
Base Current=(1-Common-Base Current Gain)*Emitter Current

Can the Base Current of PNP Transistor using Saturation Current be negative?

No, the Base Current of PNP Transistor using Saturation Current, measured in Electric Current cannot be negative.

Which unit is used to measure Base Current of PNP Transistor using Saturation Current?

Base Current of PNP Transistor using Saturation Current is usually measured using the Milliampere[mA] for Electric Current. Ampere[mA], Microampere[mA], Centiampere[mA] are the few other units in which Base Current of PNP Transistor using Saturation Current can be measured.

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