+  1 Introduction
 +  2 Start a Power Supply Design
 +  3 Component Finder
 +  4 Project Management
 +  5 Loss Analysis
 +  6 Waveform Analysis
 +  7 Monte Carlo Analysis
 +  8 Loop Analysis
 +  9 Thermal Analysis
 +  10 Life & MTBF Analysis
 +  11 BOM - BOM Builder
 +  12 DVT Reports
 +  13 Magnetic Builder
 +  14 Add Parts
 +  15 Report Builder
 +  16 Harmonic
 +  17 EMI Analysis
 +  18 Component Builder
 +  19 Smart Optimizer
 +  20 General Function in PowerEsim
      21 Troubleshooting
 +  22 PowerEsim Account Management
      23 PowerEsim Terms of use
 +  24 User Interface Practice
Better Than Real - Free Switch Mode Power Supply Circuit (SMPS) Design Software & Transformer Calculation / Simulation Tool.
PowerEsim User Manual
PowerEsim is a free web-based software providing power supply (SMPS) design, transformer design, magnetic design, loss analysis, thermal analysis, waveform analysis, MTBF analysis, BOM building, DVT analysis and optimization of power supply (SMPS). Click to try PowerEsim (www.powerEsim.com)




5 Loss Analysis Back to top
 1 YouTube



5.1 What is Loss analysis? Back to top
Loss analysis may as well be the most useful tool of PowerEsim. It sorts the losses of each user added or automatically loaded component from the converter, and gives a breakdown on the type of losses they are. Users can improve efficiency or cost just by choosing different components from different manufacturers.

5.2 How to start Loss Analysis as a Standalone Tool Back to top
Click on "Loss " on the left main menu to start Loss Analysis.


5.3 Introduction to Interface (Standalone Tool) Back to top
The user must first add at least one part into the design.
To add parts into the design, click [+Part] in the top bar. For details, please refer to Session 14--Add Parts.

There are shortcuts to start a design from choosing topology before using this tool.
To start a design using another method, please refer to Session 2.2--Start a power supply design.

  1. Top Bar
  2. Component List


5.3.1 Top Bar Back to top
Please refer to Session 9.3.7--Top bar.


5.3.2 Component List Back to top
All added components are shown in the component list.
Total Loss of whole design is shown in the first row of the component list.

To change the components, click the blue button with the designator on the left to enter the component finder page.

Sorting order can be changed by clicking the column heading.

Enable [Compare this result] to show the Stored Losses column.

Enable [Hidden Part] to select parts that you want to hide.
After selecting, click [Apply] to update.


5.4 How to start Loss Analysis with Topology Back to top
Click on "Loss" on the left main menu to start Loss Analysis.


5.5 Introduction to Interface (With Topology) Back to top
  1. Top Bar
  2. Graph
  3. Component List


5.5.1 Top Bar Back to top
Please refer to Session 9.5.1--Top bar.


5.5.2 Graph Back to top
The graphs for loss analysis are shown.
Click on the graphs to enlarge.


5.5.3 Component List Back to top
All components in the design are automatically loaded to this tool and shown in the component list.

Individual component loss of each components are shown including conduction loss, switching loss and fringing & leakage flux loss.

Conduction losses mean forward drop losses.

Switching losses mean the sum of reverse recovery losses and reverse leakage current losses.

Losses of a magnetic component divided into three parts:
  • "Core losses" mean the total AC losses including the hystersis and eddy current losses.
  • "Conduction losses" mean the DC copper losses.
  • "Fringing & leakage flux losses" mean the sum of all AC losses in the copper such as AC losses caused by skin and proximity effect, eddy current losses caused by fringing flux, and so on.


    For the function of the component list, please refer to Session 5.3.2--Component List.