1. Speeding up transformer design through latest Web tool 29/Nov./2007 1 www.powerEsim.com 1 Speeding up transformer design through latest Web tool

2. Speeding up transformer design through latest Web tool 29/Nov./2007 2 www.powerEsim.com 2 The Web tool... It’s on-line It’s for everyone Worldwide access 100% server side simulation It’s FREE !!

3. Speeding up transformer design through latest Web tool 29/Nov./2007 3 www.powerEsim.com 3 Free accounts from sponsors Some sponsors provide a full features PowerEsim for public user.

4. Speeding up transformer design through latest Web tool 29/Nov./2007 4 www.powerEsim.com 4 Your private free account User can apply for a 7 days private free full features account by email address.

5. Speeding up transformer design through latest Web tool 29/Nov./2007 5 www.powerEsim.com 5 It’s highly accurate I/P Votlage Vs Efficiency % 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 300350405 150W flybackInput Votlage Vdc Input Votlage Vs Efficiency % 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 100.00 85110230265 160W PFC Input Voltage Vac

6. Speeding up transformer design through latest Web tool 29/Nov./2007 6 www.powerEsim.com 6 No expert knowledge needed Find MOSFET Find Diode Find Capacitor Find Core Find Wire  Rds*Crss  Vf*trrm  CV  k1, k2, k3  Current density PowerEsimTraditional Design No equations needed! Simple pick and place components Or build real Xformer in virtual space

7. Speeding up transformer design through latest Web tool 29/Nov./2007 7 www.powerEsim.com 7 PowerEsim vs Traditional Design result oriented adaptive iteration instead of skill of knowledge application PowerEsim turn design into

8. Speeding up transformer design through latest Web tool 29/Nov./2007 8 www.powerEsim.com 8 Designing a power supply - Ask our expert Enter the input & output specification Chose an application Click “Recommend Design”

9. Speeding up transformer design through latest Web tool 29/Nov./2007 9 www.powerEsim.com 9 How our expert inside the server work Specification Search for closest reference design Search for best topologies Fuzzy logic is used to rank the topologies or reference design according to user’s requirements

10. Speeding up transformer design through latest Web tool 29/Nov./2007 10 www.powerEsim.com 10 Chose a PWM controller circuit Double click the PWM block Select the PWM controller Another PWM circuit will appear

11. Speeding up transformer design through latest Web tool 29/Nov./2007 11 www.powerEsim.com 11 Preliminary design will be initialized Preliminary design of real components will be initialized within a few seconds A virtual power supply is on the your bench

12. Speeding up transformer design through latest Web tool 29/Nov./2007 12 www.powerEsim.com 12 Now click T1 and go to Magnetic Builder

13. Speeding up transformer design through latest Web tool 29/Nov./2007 13 www.powerEsim.com 13 H Background - What else we consider for a transformer Leakage inductance m=2 Proximity effect Skin effect Fringing flux Core losses

14. Speeding up transformer design through latest Web tool 29/Nov./2007 14 www.powerEsim.com 14 Magnetic Builder - Build a single transformer alone User can build a single sand alone transformer by pressing the button “Magnetic Builder”

15. Speeding up transformer design through latest Web tool 29/Nov./2007 15 www.powerEsim.com 15 Design a single Xformer – Where it apply? Choose the application of the magnetic component, e.g. it is a “Flyback Xformer” or “Input Choke”

16. Speeding up transformer design through latest Web tool 29/Nov./2007 16 www.powerEsim.com 16 Design a single Xformer – Operating conditions? Enter the simple operating condition of the application, e.g. the operating condition of the “Flyback converter” Press “Recommend Design,” a preliminary Xformer with core, wire, tape and winding sequence, will be recommended.

17. Speeding up transformer design through latest Web tool 29/Nov./2007 17 www.powerEsim.com 17 Design a single Xformer – “ Recommended Design ” A preliminary transformer of real construction is ready to be edit and refine. This page is a simplified version of the Magnetic Builder. Excellent for quick design purpose.

18. Speeding up transformer design through latest Web tool 29/Nov./2007 18 www.powerEsim.com 18 Design a single Xformer – Full version Magnetic Builder Click the “Advanced” button will go to the full version Magnetic Builder and do whatever you like.

19. Speeding up transformer design through latest Web tool 29/Nov./2007 19 www.powerEsim.com 19 First thing to design a Xformer First thing to do - Select the varnish and UL insulation system first, of course.

20. Speeding up transformer design through latest Web tool 29/Nov./2007 20 www.powerEsim.com 20 Any real core you like Chose the range of Ae Select Core shape Select Manufacturer

21. Speeding up transformer design through latest Web tool 29/Nov./2007 21 www.powerEsim.com 21 Instant preview winding when thing change Click the “preview winding” Corresponding winding cross section will be shown Supported on Core, N and Wire.

22. Speeding up transformer design through latest Web tool 29/Nov./2007 22 www.powerEsim.com 22 Seeking for the best Lm Click the “Inductance” button Enter the range of inductance Highlight each in the list, select according to total loss and stress.

23. Speeding up transformer design through latest Web tool 29/Nov./2007 23 www.powerEsim.com 23 Find the best number of turn Click the “Number of turn” button Enter the range of turn Highlight each in the list, select according to total loss and stress.

24. Speeding up transformer design through latest Web tool 29/Nov./2007 24 www.powerEsim.com 24 No. of turn is not just an abstract number ! Click the “Preview Winding” button Observe how winding structure change with number of turn.

25. Speeding up transformer design through latest Web tool 29/Nov./2007 25 www.powerEsim.com 25 Add more copper Click the “Change Wire” button Click the “No. of Parallel Wire” Add more parallel wire as you like.

26. Speeding up transformer design through latest Web tool 29/Nov./2007 26 www.powerEsim.com 26 Copper foil can be used Click the “Use copper foil” button Enter the copper foil size

27. Speeding up transformer design through latest Web tool 29/Nov./2007 27 www.powerEsim.com 27 Faraday shield can be added Click the “Add Pri Wdg” or “Add Sec Wdg” button Click the check box “Faraday Shield” Click the combo box W”x” to arrange for the layer of the Faraday shield You may go to “Winding Construction” page to further arrange for the shield.

28. Speeding up transformer design through latest Web tool 29/Nov./2007 28 www.powerEsim.com 28 Arrange each winding layer you like

29. Speeding up transformer design through latest Web tool 29/Nov./2007 29 www.powerEsim.com 29 The dot of a winding User can define whether the winding is started at dot sign or not

30. Speeding up transformer design through latest Web tool 29/Nov./2007 30 www.powerEsim.com 30 Where to start User can define whether the winding is started at upper end or lower end of the winding layer

31. Speeding up transformer design through latest Web tool 29/Nov./2007 31 www.powerEsim.com 31 How to wind a winding User can define the location of a winding at the center, lower part or upper part of the winding layer. Distribute the winding all over the layer is also possible.

32. Speeding up transformer design through latest Web tool 29/Nov./2007 32 www.powerEsim.com 32 Layer to layer winding method A winding may occupy more than 1 layer. Choose “Tight” will ensure wires to full up all space in it’s layer before go to the next layer. Choose “Shared” will resulting in even distribution on each layers

33. Speeding up transformer design through latest Web tool 29/Nov./2007 33 www.powerEsim.com 33 Inner tape between each layer Inner tape can be placed between each layer of Multi-layers winding.

34. Speeding up transformer design through latest Web tool 29/Nov./2007 34 www.powerEsim.com 34 Customize different bobbins type Thickness of each wall and the type of split bobbin can be defined in “Bobbin Setting”.

35. Speeding up transformer design through latest Web tool 29/Nov./2007 35 www.powerEsim.com 35 You can make a transformer like this.. You can change the number of wire used You can change the size of the wire You can control how you place the wire You can use copper foil to replace magnet wire You can split the bobbin You can add Faraday shield You can do anything you like....

36. Speeding up transformer design through latest Web tool 29/Nov./2007 36 www.powerEsim.com 36 Transformer drawing will be followed Transformer drawing will be automatically generated by pressing the “Generate Drawing” button. Details testing methods, P/N, material can be edit before printing.

37. Speeding up transformer design through latest Web tool 29/Nov./2007 37 www.powerEsim.com 37 Thermal – knowing Temp. at day 1 May be the fastest and easiest thermal simulation tool for power supply. 5 s for a simulation only!!

38. Speeding up transformer design through latest Web tool 29/Nov./2007 38 www.powerEsim.com 38 DVT – check the stresses DVT Report check every components stress and also circuit design constraint.

39. Speeding up transformer design through latest Web tool 29/Nov./2007 39 www.powerEsim.com 39 MTBF – how long it last

40. Speeding up transformer design through latest Web tool 29/Nov./2007 40 www.powerEsim.com 40 Use thermal result check box Once this check box is clicked, all simulation, e.g. DVT, MTBF, etc, will be base on junction Temp. from thermal simulation result, otherwise default value will be used

41. Speeding up transformer design through latest Web tool 29/Nov./2007 41 www.powerEsim.com 41 Loop Analysis– how stable the system Gain and phase margin will be immediately known with after any change or circuit component

42. Speeding up transformer design through latest Web tool 29/Nov./2007 42 www.powerEsim.com 42 Loop Analysis– transient loading Define step loading waveform and corresponding output transient loading response will be shown

43. Speeding up transformer design through latest Web tool 29/Nov./2007 43 www.powerEsim.com 43 Harmonic – knowing input current harmonics content All input current parameters, e.g. PF, THD, harmonic content can be seen

44. Speeding up transformer design through latest Web tool 29/Nov./2007 44 www.powerEsim.com 44 Waveform – the least important tools Critical component’s waveform will be illustrated

45. Speeding up transformer design through latest Web tool 29/Nov./2007 45 www.powerEsim.com 45 BOM Builder – BOM is always ready to print out BOM is always ready to print and will be updated automatically. It save a lot of preparing document time for engineer.

46. Speeding up transformer design through latest Web tool 29/Nov./2007 46 www.powerEsim.com 46 Report Builder – Generate all document with a click Simple a click - All result from analysis or tools can be exported to Excel file for engineering documentation.

47. Speeding up transformer design through latest Web tool 29/Nov./2007 47 www.powerEsim.com 47 Download – a lot of document is ready to download A lot of document and publication are ready to download. It is helpful to become a PowerEsim expert.

48. Speeding up transformer design through latest Web tool 29/Nov./2007 48 www.powerEsim.com 48 We believe...