Power Loss Calculations

Power Loss calculator

Based on the core details the calculator can provide Core Loss for DC and AC.

The calculator link is Power Loss Calculator.

Here is the guide for Calculator

 

Input details

Part # - this carryover from the website

                METHOD 1                                                          METHOD 2

ENTER REQUIRED INDUCTANCE   OR       ENTER WAVEFORM DETAILS

 

METHOD 1

ENTER REQUIRED INDUCTANCE

1.       RMS CURRENT ( Irms ) A

2.       Iripple

3.       Freq

4.       Required Inductance

 

METHOD 2

ENTER WAVEFORM DETAILS

1.       RMS CURRENT ( Irms ) A

2.       Freq (kHz)

3.       Voltage input (Vin),

4.       Voltage output (Vo),

5.       Ripple voltage (Vripple) ,

6.       Voltage drop at switch (Vsw) (default 1.5V)

7.       Voltage drop Diode (forward voltage drop) Vd (default 0.5V)

Assumption:

·         Approximate Calculation for Buck converter.

·         For the loop stability reason – output capacitor should have resistance of > 100 mOhms.

·         No LC post filter

·         Ripple current is assumed as I peak = Irms + (Ripple A)/2 Amps

 

Table has the details – core part #, cc, Le, cross section.

Output Results

Winding Loss (W) =

Core loss Dc (W)=

Core Loss AC(W) =

Required Inductance (uH) =

I peak current (A) =

 

References:

Core loss calculation referred from core manufacturer catalog.

Waveform calculation is based on the Texas Instrument Inductor design guide.

 

Disclaimer:

- Power Loss Simulation is an effective tool for evaluating product performance by simulation; however, it does not simulate product performance in all test environments and is not intended to be a replacement for testing of the actual device by means of a test board or otherwise.

- Simulation results are for reference purposes only; CUSTOMER shall perform thorough testing using the actual device.