Planar transformers for switchmode power conversion planar transformers have been around for many years, and i have often wondered why they are not used more frequently. Us5353001a hybrid integrated circuit planar transformer. Designing a planar transformer and using the pc winding technique, reduces the window utilization factor even further. Transformer calculator program electronics projects circuits. The window utilization, ku, comparison of the two different winding techniques is shown in figure 2012. Otherwise, contact the planar reseller partner you purchased your planar display from or contact planar support. Planar transformers for switchmode power conversion. Ferroxcube 2 exploded view of a planar transformer.
Tpp series planar transformers, combined ed core, pcb coil, and triple insulated wire together, with compact structure, high withstanding voltage, low leakage flux and less skin effect, are suitable for using in high frequency acdc power supply with high conversion efficiency, such as chargers for smart phones and tablets, especially qc2. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model with parasitics. Coreless planar transformer using lowtemperature cofired. Professionals with experience in transformer assemblies use the computer program to calculate the number of coils and wire thickness. It has two types, single phase and three phase transformer. By using this website you agree to the placement of cookies. Transformershigh frequency transformerinductorxunyan. Transformer design integrated engineering software. Us5781077a reducing transformer interwinding capacitance. 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. High density dcdc power module design with embedded planar.
To increasedecrease the alternating volts in electric power, transformers are used. Coreless planar transformer using lowtemperature cofired ceramics for isolated gate driver applications an undergraduate honors college thesis in the department of electrical engineering college of engineering university of arkansas fayetteville, ar by matthew feurtado. The p220 p900 planar transformer series, with a combined overall 1kw30kw power range has transformed the efficiency for resonance chokes, planar power transformers, and planar output chokes in ev dcdc converters. Planar magnetics have become very common in dcdc converters and other power conversion devices. The demo software will run average and switching models for these predesigned templates. Electronics projects, transformer calculator program electronics software tools, date 20190802. Click here for a summary of our newest planar transformers and a detailed description for determining losses and overall efficiencies. Planar transformer trims cost, boosts power handling. Topic 4 designing planar magnetics texas instruments. Enter the parameters in the yellow coloured fields, and then click the calculate buttons. The magnetics curve fit equation tool is an excel file for design engineers. A transformer is a passive electrical device that transfers electrical energy between two or more circuits.
Steinmetz coefficients are avaialble in following file. 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. The planar transformer height effect on the power density was studied. The result is a compact, high power density planar transformer that is typically around 30%. Transforming the future of power electronics planar. With this coil calculator you can design and calculate the properties of a coil or transformer. The planar transformer, or inductor, is a low profile device that covers a large area, whereas, the. Learn more about planar s custom digital display solutions.
Standex electronics planar magnetics include planar transformers and planar inductors available in a variety of standard core sizes with custom configurations. We use cookies to provide the best possible user experience for those who visit our website. The templates accept the isspice4 transformer models generated using magnetics designer for cyclebycycle switching simulations. Planar magnetics design for lowvoltage dcdc converters. Magnetic cores used with planar devices have a different shape than conventional cores used with helical windings. The first approximation is based on a modification of an expression developed by wheeler. Transformer capacity calculator three phase transformer.
A novel planar balun structure for continuous wave 1 kw, 500. Calculating performance of planar magnetics 2 the transformer consisted of four windings having eight layers and 38 turns total. A transformer with two overlapping windings etched on either side of a planar substrate is presented in this paper. Planar transformers can be used in forward, pushpull, and full bridge half bridge topologies at frequencies from 100 khz to 500 khz. Beijing institute of technology, 1995 a thesis submitted in partial fulfillment of the requirements for the degree of master of science in the department of electrical and computer engineering in the college of engineering and computer science. We changed the voltage ratio by using different seriesparallel connections. View the kit manual this is the kit used by coilcraft designers to provide fast turnaround of planar transformer samples.
Faradays law is still used to calculate the required turns. We offer a wide range of customdesigned, stateoftheart magnetics, of the highest quality, for a variety of applications. Except for the wall warts, magnetics in every modern converter i either acquired for my projects or reverse engineered to see how it is made and works, had this type. Planar magnetics design for lowvoltage dcdc converters by shangyang xiao b. High performance planar power transformer with high power density in mhz frequency region for next generation switch mode power supplies. Built for the most demanding environments and to high customer standards, planar offers unmatched performance, durability, and value. Himag planar has become the global market leader in the development of planar transformer technology, design. You can experiment with the number of turns, dcr and the location of the windings within the as. In this article, the proposed novel round planar balun based on marchand balun. Specialized wire types like those used in planar magnetics can also be added. Here you will find useful calculators for your electromagnetic power supply needs. Complete designs for a forward and a flyback transformer are given. Planar s commitment to high quality, leadingedge display technology is unparalleled.
Introduction to planar magnetic pcb design terratel. High voltage transformers copper strip windings planar transformers. With the assumption that half of the total transformer. Planar windings are constructed using flat copper layers leadframes or printed circuit boards pcbs to form a laminate style winding construction, which are then sandwiched between small, lightweight planar ferrite cores. This 15 page application note presents a fast and easy method to design planar transformers based on the ferroxcube range of planar e cores. Standard transformer typical planar transformer copper area window area, wa ku 0. If you have some experience in assembling transformers, then this program is perfect for you.
Single layer planar spiral coil inductor calculator. Locate and download the drivers or software for your planar display. Sfdt 2010 assists design engineers in optimizing their magnetics components. In assembling i use for output two wires of 2 milimeters at one quill. Server and application monitor helps you discover application dependencies to help identify relationships between application servers. The result is a compact, high power density planar transformer that is. Pulse electronics ph08xxcnl flat coil planar transformers offer up to 160w in a 9. Planar transformer top view planar transformers are devices used to exact standards with precise electrical characteristics such as capacitance, output, and aspect ratio. According to one embodiment, the planar transformer has a first winding, a first conducting surface adjacent to the first winding, a second winding and a second conducting surface adjacent to the second winding. Begining point of two wires are joined and this is output ground, end point is two outputs of 27 volts. An equivalent circuit planar magnetics inductors model vs air.
A novel planar balun structure for continuous wave 1 kw. Ph08xxcnl is a highly efficient, costeffective planar transformer featuring a helical flat coil design. Transformers and inductors for smps power supplies. Order designers kit c356 view the kit manual this is the kit used by coilcraft designers to provide fast turnaround of planar transformer samples. Planar e cores offer ease of assembly, consistent results and a low profile. Payton planar magnetics is the global leader of planar magnetics technology with more than 25 years of research and development experience.
Transformer calculators toolbox agile magnetics, inc. Planar magnetics pcb design an alternative to conventional core shapes. If you cannot find the driver or software you are looking for and are an authorized planar reseller partner, visit the reseller partner portal. Planar transformer trims cost, boosts power handling the planar transformers introduced by pulse electronics are part of the companys initiative to bring down the cost of the previously announced ph08xxnl series. Planar technology is a relatively modern process that allows transformers to operate at a high frequency unlike the conventional wirewoundonabobbin transformers, planar transformers use flat windings, usually on a printed circuit board or insulated copper plates, instead of copper wire to form the coils. The magnetics ferrite core loss calculator is an easy way to find core loss data on.
A compact planar transformer with an improved winding configuration has been designed and fabricated. In researching how to design a planar rectangular pcb coil, ive come across numerous papers describing many topologies, except for a rectangular one. The agw electronics calculator app provides information and facilities for the design and manufacture of transformers, inductors, chokes and other coils. This video provides insights into the key considerations to optimizing a power module design in addition to the market trend of the brick power module industry. Coupled electromagnetic and analysis of ferrite core. Pdfs for download high density dcdc power module design with embedded planar transformer. Because of the limited available winding space it is recommended to use the maximum allowed flux densities in planar magnetics. This relation can be used to estimate the temperature rise of the transformer as a function of flux density in the core. A varying current in one coil of the transformer produces a varying magnetic flux, which, in turn, induces a varying electromotive force across a second coil wound around the same core. Compared to a conventional magnetic core of equal core volume, devices built with optimized planar magnetic cores usually exhibit.
This planar transformer was used in a flyback switchmode dcdc converter with a pulse width modulator feedback control circuit. Vishays planar transformer portfolio features low power devices 5w to 1kw for acdc and dcdc conversion, including standard gate drive transformers. This nfcrfid planar spiral coil inductance calculator determines the inductance of onelayer circular, square, hexagonal and octagonal planar flat spiral coils, which are often used in nearfield communication nfc and radio frequency identification rfid tags that are powered by means of extracting energy from the reader electromagnetic field. Be sure to calculate the total pcb cumulative maximum thickness to insure no air. A compact planar transformer with an improved winding. These transformers are available in multiple turns ratio and surfacemount or throughhole configurations.
Our planar transformers are specifically offered in a wide array of ranges and outputs for this particular reason. Planar s products represent bestinclass image performance with solutions tailored to the unique needs of each application. An online three phase transformer calculator to find the current in different power units. You can experiment with the number of turns, dcr and the location of the windings within the assembly interleaving. Ph08xxcnl flat coil planar transformers pulselarsen. Magnetics designer demo, product brochure or application note in.
The pcb layout of the forward transformer is included. The design of a multilayer planar transformer for a dcdc converter with a resonant inverter magdalena puskarczyk, radoslaw jez abb corporate research center, a starowislna st. These usually smt devices have a distinct density advantage and a highfrequency loss advantage. The transformer parameters can be input to the average models. Users may download and print one copy of any publication from the public portal for the purpose of private study or.
Dec 18, 2017 download transformer design software for free. Here is how to calculate a ferrite transformer turns in a practical way. Download readytouse system files to speed your design process. Below the calculator you will find more explanation about the calculations. Himag planar possess over two decades of experience in the field of planar transformers with a long term history in inverter technology and pcb design. Planars products represent bestinclass image performance with solutions tailored to the unique needs of each application. The design and development of a novel flyback planar. The design of a multilayer planar transformer for a dcdc. Magnetics designer is a standalone software program for windows that designs all types of layer and sectorsplit bobbin wound transformers and inductors, and generates a corresponding spice model.
Optimal design and tradeoffs analysis for planar transformer in. With innovations in lcd display, video walls, large format displays, and touch interactivity, planar offers the best visualization solutions for a variety of demanding vertical markets around the globe. Ferroxcube 3 planar transformers can be constructed as stand alone components, with a stacked layer design or a small multilayer pcb, or integrated into a multilayer board of the power supply. However, such multiturn transformer still brings some additional complexity in layout and calculation. Pdf high performance planar power transformer with high. The switch mode converter and the planar transformer showed a high efficiency of 90 and 99% at 2 mhz operating frequency, respectively.