I am using spiral and toroidal inductors in a buck converter gan half. How to design planar toroidal inductor using altium. Read about what is the best way to learn how to design and make smps transformers. Edn designing a highefficiency planar transformer for. Ron hui, senior member, ieee, and henry shuhung chung, member, ieee abstract magnetic cores have been used in transformers for over a century. New design rule for high frequency planar transformer. The hybrid planar transformer series is available in surfacemount and throughhole configurations. Examines how a planar inductor or transformer core could be made from a net tie component in altium designer. Breaking the pcb design challenges with net ties altium.
Introduction significant cost reductions and performance enhancements in planar magnetics have been introduced in recent years. This tutorial introduces a few basic techniques about using m2spice in planar magnetics. Decrease the time used to generate planar transformers dramatically using this tool. Also, planar magnetics can have very good thermal performance because of greater surface area to volume ratio providing more area to contact a heatsink. A split count of 1 means that the layer has not been split and the layer itself is considered to be a single split. The netslayers section of the panel displays all internal plane layers currently defined for the design. Is there anyone who can give some suggestion on doing the planar transformer. This is a platform that was discontinued by altium limited but is now offered as freeware.
Transforming the future of power electronics planar. Introduction to planar magnetic pcb design terratel. Correspondingly, material grades were medium and high frequency power ferrites. Rolled planar magnetics transformers and inductors. Make the free switch and import from kicad to altium designer free design software lacks the features and support you need.
For example if we start with an ac to isolated dc supply say. Compared to a conventional magnetic core of equal core volume, devices built with optimized planar magnetic cores usually exhibit. Circuitmaker is said to be particularly useful for mixedsignal and. Pdf complete software package for transformer design. I have a new dcdc requirement from 48vdc to 52vdc and 24vdc for slic battery feeding. Custom design of all types of planar inductors and transformers for highfrequency dcdc converters power supplies with input voltage from 0v to 150v and output voltage from 0. Magnetic builder magnetic design software, inductor and transformer design tool poweresim is a free webbased 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. The design of a multilayer planar transformer for a dcdc converter with a resonant inverter magdalena puskarczyk. The inductance of the mains filter choke can be increased by substituting the power ferrite for a high permeability grade. The separation of the conductors of the primary winding and the secondary winding is a critical factor to determine the coupling of the transformer. Planar magnetics design for lowvoltage dcdc converters. Before proceeding to the actual software tutorial, it is important to understand when it is absolutely necessary to use a.
Using m2spice to simulate a transformer with 8 layers and 4 windings operating at 500 khz minjie chen and samantha gunter 1 organizing the geometry information m2spice is wellsuited for modeling planar magnetics with sophisticated windinginterleaving patterns. When it comes to standex electronics custom transformers custom is standard. Complete software package for transformer design optimization and economic evaluation analysis. Our planar transformer design capability combines excellent engineering with delivering a solution that not only saves you space, time, and costs, but suits your needs uniquely and specifically. Id like to learn about designing and making transformers for switch mode power supplies. After that fem simulators are introduced to numerically compute the winding loss. When various windings of the inductor are placed directly on the printed circuit board, each winding is composed. This 15 page application note presents a fast and easy method to design planar transformers based on the ferroxcube range of planar e cores. Himag planar offers a onestop planar transformer and inductor service. Discover features you didnt know existed and get the most out of those you already know about. Altium techdocs are online documentation for altium products, providing the basic information you need to get the most out of our tools. As more and more industries begin to feel the push toward higher efficiency and performance along with miniaturization, the planar transformer continues to emerge as an alternative to wirewound transformers, making it ideal in certain application sweet spots. Net ties are components that allow multiple separate nets connected via smt pads to.
The pcb layout of the forward transformer is included. Download a free trial to find out which altium software best suits your needs. Coreless planar printedcircuitboard pcb transformersa fundamental concept for signal and energy transfer s. Comsol software while determining main parameters of the analysed transformer. Complete designs for a forward and a flyback transformer are given. The first applications for planar e cores were in power conversion. A complete software package for transformer design optimization and. This design facility is an essential part of the himag planar organisation as most products are custom designed. This is the reason for a numerical method implementation fem. In pulse transmission, a wideband transformer between pulse. The main transformer board is comprised of 6 4oz layers and 2 2oz layers in an 8 layer pcb. Planar transformers are high frequency transformers used in isolated switchmode power supplies operating at high frequency. Model and design of pcb parallel winding for planar transformer. As opposed to conventional wirewoundonabobbin transformers, planar.
Circuitmaker is receiving accolades as a freetouse schematic and pcb design tool for the opensource hardware community. Hi all, i want to draw a planar transformer cell on pads layout and associate a symbol to create a part. Magnetic builder magnetic design software, inductor and. Beginning guide this guide is a beginners guide to pcb design using altium designer and is geared towards the following individuals. These further enhance the performance and reduce the cost while extending the power capability of the planar transformer to 1 kw. Topic 4 designing planar magnetics texas instruments. Thank you for your interest and answering my question. Making planar transformers in altium electrical engineering stack. The first step of new design rule for high frequency planar transformer with helical winding structure is proposed in the paper.
Modeling and design of planar integrated magnetic components by shen wang dr. A database with thousands of cores, wide variety of materials and wire is included. Magnetics current transformer design software assists design engineers in choosing the most appropriate core material and size for a number of current transformer ct topologies. Miscellaneous devices online documentation for altium. There is a large and vibrant community of opensource designers, makers, hobbyists, students, and professionals. How can i make spirals and similar designs in altium. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model with parasitics. I am looking for something a bit more flexible that would permit quick design changes.
Kim investigated different planar transformer structures with copper wire and pcb winding 9 and fu 10 proposed some fundamental principles for the planar transformer design in the llc resonant converter with several winding arrangements. Planar transformers for switchmode power conversion. Use a net tie to prevent shorts between the ends of the coil. Creating planar transformers in altium designer youtube. To download the altium project files, see the design files at tida 00688.
The use of flex and rigid flex circuits for integrated planar magnetics is rising in popularity. I am thinking of doing it in a cad software and then import it to altium as friend of mine has chipped in to help me with it. Model and design of pcb parallel winding for planar. Circuit topologies best suited for high frequency applications are discussed. Planar transformers due to the design features and manufacturability have the following advantages. The drc will flag any other short circuit violation between these differing nets elsewhere in the design. Browse other questions tagged transformer altium planarinductor or ask your own question. Strategies for optimizing planar design are presented, and illustrated with design examples. Quickly find the best current transformer or current sensor for your application. By using this website you agree to the placement of cookies.
Browse other questions tagged transformer altium planar inductor or ask your own question. We use cookies to provide the best possible user experience for those who visit our website. This seem to be easy but i have a problem because each coil of the transformer has the same net name at each end and i cannot attach different pads at each end of coil track. The design of a multilayer planar transformer for a dcdc. Odendaal, cochair electrical engineering abstract recently planar magnetic technologies have been widely used in power electronics, due to good cooling and ease of fabrication. The devices unique design can be optimized for customerspecific switching frequencies, input and output voltages, and current levels. A circuit bridging two differing ground plane nets with a planar inductor winding. Design of planar power transformers contents introduction 3 design procedure 4 design examples flyback 8 forward 10 formulas layer design 14 1ferroxcube 2. Coreless planar printedcircuitboard pcb transformers. The 2oz cu plating on the outer layers of the main transformer board allows for placement of the surface mount components that make up the remainder of the dc. Altium designer rigid flex guidebook for pcb design altium. The software can accommodate user inputs of voltage, current, frequency, andor desired impedance and will recommend the best part number for the application.
Software to predict the current density distribution and ac loss for planar windings has been developed. You can use altium designer to place a net tie component in series with the inductor windings. Within the section, the split count column indicates how many split planes exist for the corresponding plane layer. But there is a limitation on the height so i am not able to use the traditional transformer i used to use. Planar transformers are devices used to exact standards with precise electrical characteristics such as capacitance, output, and aspect ratio. High power densities and great reliability and repeatability. Inhouse the design engineer can adapt the different combinations of serial and parallel configurations of the windings to give a substantial number of ratio and current possibilities via the supplied software. Two further advancements in planar design, one in the optimization of the design of the planar core and another in a patentpending winding technique, are presented here. Im trying to make spirals and more, like this and this the circular shape i think i can figure out, but the spiral, any suggestions.
How to design planar toroidal inductor using altium designer. Versatile planar transformer vishay intertechnology. Magnetic cores used with planar devices have a different shape than conventional cores used with helical windings. My hope is that this guidebook will form a good enough introduction to rigidflex pcb design that more readers will see the technology within reach for their own design projects, and that a result overall will be increased adoption. Just run the script and the options should be pretty selfexplanatory. Consequently, a software platform for magnetics design is established.
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