Power Loss in BJT Calculator

✖Energy loss is defined as the power dissipated or wasted by transistor device in one complete cycle.ⓘ Energy Loss [E_loss]			+10% -10%
✖Switching Frequency is the rate at which the DC voltage is switched on and off during the pulse width modulation process in a switching power supply in transistor device.ⓘ Switching Frequency [f_sw]			+10% -10%

✖Average power loss is the power loss when transistor device is in working state.ⓘ Power Loss in BJT [P_loss]

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Power Loss in BJT

Formula

`"P"_{"loss"} = "E"_{"loss"}*"f"_{"sw"}`

Example

`"187.5W"="0.125J"*"1.5kHz"`

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Power Loss in BJT Solution

STEP 0: Pre-Calculation Summary

Formula Used

Average Power Loss = Energy Loss*Switching Frequency
P_loss = E_loss*f_sw
This formula uses 3 Variables

Variables Used

Average Power Loss - (Measured in Watt) - Average power loss is the power loss when transistor device is in working state.
Energy Loss - (Measured in Joule) - Energy loss is defined as the power dissipated or wasted by transistor device in one complete cycle.
Switching Frequency - (Measured in Hertz) - Switching Frequency is the rate at which the DC voltage is switched on and off during the pulse width modulation process in a switching power supply in transistor device.

STEP 1: Convert Input(s) to Base Unit

Energy Loss: 0.125 Joule --> 0.125 Joule No Conversion Required
Switching Frequency: 1.5 Kilohertz --> 1500 Hertz (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_loss = E_loss*f_sw --> 0.125*1500

Evaluating ... ...

P_loss = 187.5

STEP 3: Convert Result to Output's Unit

187.5 Watt --> No Conversion Required

FINAL ANSWER

187.5 Watt <-- Average Power Loss

(Calculation completed in 00.004 seconds)

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Created by Parminder Singh

Chandigarh University (CU), Punjab

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< 7 BJT Calculators

Reverse Recovery Current

Go Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current)

Reverse Recovery Time

Go Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current)

Reverse Recovery Charge

Go Reverse Recovery Charge = 0.5*Reverse Recovery Current*Reverse Recovery Time

Softness Factor

Go Softness Factor = Reverse Current Decay Time/Forward Current Decay Time

Power Loss in BJT

Go Average Power Loss = Energy Loss*Switching Frequency

BJT Turn OFF Time

Go Turn OFF Time = Storage Time+Fall Time

BJT Turn ON Time

Go Turn ON Time = Rise Time+Delay Time

Power Loss in BJT Formula

Average Power Loss = Energy Loss*Switching Frequency
P_loss = E_loss*f_sw

Why is power wasted in a BJT?

Although, BJT does not dissipate energy or power unlike resistor but it also suffer the loss of power. The power loss is due to the frequent switching of the BJT, when a transistor is constantly made to switch its state from on to off or vice-versa, the power is lost.

How to Calculate Power Loss in BJT?

Power Loss in BJT calculator uses Average Power Loss = Energy Loss*Switching Frequency to calculate the Average Power Loss, The Power Loss in BJT formula is defined as the power loss during the operation of BJT. It is mainly due to the switching of BJT. Average Power Loss is denoted by P_loss symbol.

How to calculate Power Loss in BJT using this online calculator? To use this online calculator for Power Loss in BJT, enter Energy Loss (E_loss) & Switching Frequency (f_sw) and hit the calculate button. Here is how the Power Loss in BJT calculation can be explained with given input values -> 187.5 = 0.125*1500.

FAQ

What is Power Loss in BJT?

The Power Loss in BJT formula is defined as the power loss during the operation of BJT. It is mainly due to the switching of BJT and is represented as P_loss = E_loss*f_sw or Average Power Loss = Energy Loss*Switching Frequency. Energy loss is defined as the power dissipated or wasted by transistor device in one complete cycle & Switching Frequency is the rate at which the DC voltage is switched on and off during the pulse width modulation process in a switching power supply in transistor device.

How to calculate Power Loss in BJT?

The Power Loss in BJT formula is defined as the power loss during the operation of BJT. It is mainly due to the switching of BJT is calculated using Average Power Loss = Energy Loss*Switching Frequency. To calculate Power Loss in BJT, you need Energy Loss (E_loss) & Switching Frequency (f_sw). With our tool, you need to enter the respective value for Energy Loss & Switching Frequency and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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