Speeding up transformer design through latest Web tool
Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
The Web tool. . . • It’s on-line • It’s for everyone • Worldwide access • 100% server side simulation • It’s FREE !! Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Free accounts from sponsors • Some sponsors provide a full features Power. Esim for public user. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Your private free account • User can apply for a 7 days private free full features account by email address. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
It’s highly accurate I/P Votlage Vs Efficiency % Input Votlage Vs Efficiency % 100. 00 90. 00 80. 00 70. 00 60. 00 50. 00 40. 00 30. 00 20. 00 10. 00 85 110 230 265 160 W PFC Input Voltage Vac Speeding up transformer design through latest Web tool 29/Nov. /2007 300 350 405 150 W flyback. Input Votlage Vdc www. power. Esim. com
No expert knowledge needed Power. Esim Traditional Design • Find MOSFET ý Rds*Crss • Find Diode ý Vf*trrm • Find Capacitor ý CV • Find Core • Find Wire ý k 1, k 2, k 3 ý Current density • No equations needed! • Simple pick and place components • Or build real Xformer in virtual space Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Power. Esim vs Traditional Design Power. Esim turn design into result oriented adaptive iteration instead of skill of knowledge application Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Designing a power supply - Ask our expert • Enter the input & output specification • Chose an application • Click “Recommend Design” Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
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 Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Chose a PWM controller circuit • Double click the PWM block • Select the PWM controller • Another PWM circuit will appear Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
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 Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Now click T 1 and go to Magnetic Builder Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Background - What else we consider for a transformer m=2 Proximity effect H Leakage inductance Core losses Fringing flux Skin effect Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Magnetic Builder - • Build a single transformer alone User can build a single sand alone transformer by pressing the button “Magnetic Builder” Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Design a single Xformer – Where it apply? • Speeding up transformer design through latest Web tool 29/Nov. /2007 Choose the application of the magnetic component, e. g. it is a “Flyback Xformer” or “Input Choke” www. power. Esim. com
Design a single Xformer – Operating conditions? • • Speeding up transformer design through latest Web tool 29/Nov. /2007 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. www. power. Esim. com
Design a single Xformer – “Recommended Design” • • • Speeding up transformer design through latest Web tool 29/Nov. /2007 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. www. power. Esim. com
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. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
First thing to design a Xformer • First thing to do - Select the varnish and UL insulation system first, of course. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Any real core you like • Chose the range of Ae • Select Core shape • Select Manufacturer Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Instant preview winding when thing change Speeding up transformer design through latest Web tool 29/Nov. /2007 • Click the “preview winding” • Corresponding winding cross section will be shown • Supported on Core, N and Wire. www. power. Esim. com
Seeking for the best Lm Speeding up transformer design through latest Web tool 29/Nov. /2007 • Click the “Inductance” button • Enter the range of inductance • Highlight each in the list, select according to total loss and stress. www. power. Esim. com
Find the best number of turn Speeding up transformer design through latest Web tool 29/Nov. /2007 • Click the “Number of turn” button • Enter the range of turn • Highlight each in the list, select according to total loss and stress. www. power. Esim. com
No. of turn is not just an abstract number ! Speeding up transformer design through latest Web tool 29/Nov. /2007 • Click the “Preview Winding” button • Observe how winding structure change with number of turn. www. power. Esim. com
Add more copper • • • Speeding up transformer design through latest Web tool 29/Nov. /2007 Click the “Change Wire” button Click the “No. of Parallel Wire” Add more parallel wire as you like. www. power. Esim. com
Copper foil can be used • • Speeding up transformer design through latest Web tool 29/Nov. /2007 Click the “Use copper foil” button Enter the copper foil size www. power. Esim. com
Faraday shield can be added Speeding up transformer design through latest Web tool 29/Nov. /2007 • 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. www. power. Esim. com
Arrange each winding layer you like Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
The dot of a winding • Speeding up transformer design through latest Web tool 29/Nov. /2007 User can define whether the winding is started at dot sign or not www. power. Esim. com
Where to start • Speeding up transformer design through latest Web tool 29/Nov. /2007 User can define whether the winding is started at upper end or lower end of the winding layer www. power. Esim. com
How to wind a winding • Speeding up transformer design through latest Web tool 29/Nov. /2007 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. www. power. Esim. com
Layer to layer winding method • Speeding up transformer design through latest Web tool 29/Nov. /2007 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 www. power. Esim. com
Inner tape between each layer • Speeding up transformer design through latest Web tool 29/Nov. /2007 Inner tape can be placed between each layer of Multi-layers winding. www. power. Esim. com
Customize different bobbins type • Speeding up transformer design through latest Web tool 29/Nov. /2007 Thickness of each wall and the type of split bobbin can be defined in “Bobbin Setting”. www. power. Esim. com
You can make a transformer like this. . Speeding up transformer design through latest Web tool 29/Nov. /2007 • 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. . www. power. Esim. com
Transformer drawing will be followed • • Speeding up transformer design through latest Web tool 29/Nov. /2007 Transformer drawing will be automatically generated by pressing the “Generate Drawing” button. Details testing methods, P/N, material can be edit before printing. www. power. Esim. com
Thermal – knowing Temp. at day 1 • May be the fastest and easiest thermal simulation tool for power supply. 5 s for a simulation only!! Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
DVT – check the stresses • DVT Report check every components stress and also circuit design constraint. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
MTBF – how long it last Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
Use thermal result check box • Speeding up transformer design through latest Web tool 29/Nov. /2007 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 www. power. Esim. com
Loop Analysis– how stable the system • Speeding up transformer design through latest Web tool 29/Nov. /2007 Gain and phase margin will be immediately known with after any change or circuit component www. power. Esim. com
Loop Analysis– transient loading • Speeding up transformer design through latest Web tool 29/Nov. /2007 Define step loading waveform and corresponding output transient loading response will be shown www. power. Esim. com
Harmonic – knowing input current harmonics content • Speeding up transformer design through latest Web tool 29/Nov. /2007 All input current parameters, e. g. PF, THD, harmonic content can be seen www. power. Esim. com
Waveform – the least important tools • Speeding up transformer design through latest Web tool 29/Nov. /2007 Critical component’s waveform will be illustrated www. power. Esim. com
BOM Builder – BOM is always ready to print out • Speeding up transformer design through latest Web tool 29/Nov. /2007 BOM is always ready to print and will be updated automatically. It save a lot of preparing document time for engineer. www. power. Esim. com
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. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
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 Power. Esim expert. Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
We believe. . . Speeding up transformer design through latest Web tool 29/Nov. /2007 www. power. Esim. com
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