Kharezydesign methodology and optimization of a medium frequency transformer for high power dcdc applications. Computer aided high frequency transformer design using an optimized methodology john g. Design optimization of high frequency transformer for dual active bridge dcdc converter k. Magnetics designer software makes transformer and inductor design easy. Magnetics builder design magnetic inductor and transformer. High frequency transformer design program hitrin is a powerful computeraided design program, which is a companion program to trans intended for high frequency applications up to 500khz. Is there a software for optimization of ferrite core dimensions for highfrequency transformers with high voltage and current. Evaluation and design of high frequency transformers for on board charging. The working principle of hf transformer is the same as 50hz transformers, only the nonidealities should be taken into the account. Magnetic builder magnetic design software, inductor and. The thinking principles see note1 for what to use a transformer have more variations in radio or switchmode power supply circuit design than at 50hz. Using toroidal power transformer in highfrequency application read 11568 times. Piexpert provides transformer inductor design for circuits designed using power integrations integrated power supply controller ics.
How to design your own transformer for smps power supply. High frequency transformer design program optimized program. However, in a typical power frequency transformer, the ratio may be as high as 5 1. The transformer must have high electrical efficiency and in the proposed approach has to be optimized by the number of the cores. 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.
How to design your own transformer for smps power supply circuits. Therefore, careful attention to transformer design can have an impor. A high frequency transformers transfer electric power. Lc magnetics offers a unique capability for high frequency transformers. Unlike the generaluse power transformer, the modeling of high frequency, high voltage transformer is a quite different scenario. Looking to finalise your footprint for pcb layout, unsure what footprint you may need. Gerard hurley power electronics research center, department of electronic engineering national university of ireland, galway ireland abstract a new methodology for designing transformers has previously been developed. The line frequency transformers are divided into two categories, 1. High frequency transformer by using ferrites transformer 2 high frequency high power transformer design 0 questions about high frequency transformer and high frequency choke 0.
Evaluationanddesignofhighfrequency transformers for on. Due to the insulation design of transformer under highvoltage application, the parasitic capacitance existing between insulating papers can no more be neglected and plays an important role in the design of resonant. Highfrequency transformers generally use ferrite cores, as opposed to iron cores, resulting in lower remanence and higher efficiency. Inclusion of core loss selection of operating flux density to optimize total loss multiple winding design. Due to the insulation design of transformer under high voltage application, the parasitic capacitance existing between insulating papers can no more be neglected and plays an important role in the design of resonant. A database with thousands of cores, wide variety of materials and wire is included. Our programs address the most fundamental aspects of medium and high voltage transformer performance, by providing answers to transformer design. When putting a high frequency high voltage transformer along with a wideband power a mplifier in the plasma generation application, we call the system plasma power supply. Now i was wondering how to test it, if its working properly or not. Use of the transformercoretables the highfrequency transformers are calculated with the help of the effective core volume v e and the minimum corecrosssection a min. Stc sun transformer custom high frequency transformers.
The primary aim of the work was to study core and winding losses and in particular thermal modeling of high frequency power transformers and to determine appropriate loss and temperature rise modeling methods for power converter applications. Murata is able to design custom high power, high frequency transformers operating around 450 khz with power ratings from 30 kw to 400 kw. New transformer for high power, high frequency applications. They are often found in high level applications, such as power supplies and lasers. Design of highdensity transformers for highfrequency.
In this thesis design and manufacturing of ferrite based high frequency power transformers is considered. Its mechanical size depends on the power to be transfered and on the operating frequency. The hv, hf transformer is the main critical block of a high frequency power converter system. These power supplies make possible everyday functions with plasma that otherwise would be almost impossible to perform. A short presentation on the basic of high frequency transformer design by prof. Im using full bridge topology and operating at 200khz. Murata is able to design custom high power, high frequency transformers operating around 450 khz with power ratings from 30 to 400kw. Wang abstract this paper presents a design optimization procedure for high frequency transformer hft employed in.
The waveform and frequency of currents in transformers employed in these unique circuit topologies are all. The flowchart that can be used for transformer design with fea software support is given in. Using toroidal power transformer in highfrequency application. Smps design software such as pi expert for power integration or viper from st provides tools and excels for changing and configuring the smps transformer. Note that working frequency of all calculations is 50 hz you can use it for 60 hz too, in next release ill add ability to change that frequency. Highfrequency llc resonant converter with gan devices. High voltage high frequency power transformer for pulsed. Magnetics builder magnetic design software, design magnetic. Application of high frequency power transformers has become abundant in most of the power electronic switched mode power supplies. I still could not locate one which is easy to understand for novice. Download transformer calculator coils and wire thickness. Moreover, due to the high penetration of distributed generation, dc grids.
This is a windows based software for designing small transformers working on line frequency 50 60 hz and high frequency for use in smps. Toroidal transformer design program with application to inverter circuitry by james a. The transformer concept has been investigated analytically and through software simulations and experiments. A good starting point for a highpower dcdc converter design is to use a. The properties of an smps transformer are highly dependent on the frequency in which they operate. The power handling capacity of a transformer core can also be determined by its waac product, where wa is the available core window area, and ac is the effective core crosssectional area. Highfrequency transformer design highfrequency power electronic applications cause added transformer design considerations.
To get a quotation, please provide us the following information. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model. Design and optimization of hf transformers for high power. When going about choosing a power topology, first nail down the required specs and then decide on. Each design can be optimized by a combination of muratas transformer expertise and their own simulation software. Special transformers for high frequency high voltages applications are increasingly developed and designed with regard to the magnetic transfer and dielectric strength 2, 3. Highfrequency llc resonant converter with gan devices and. Transformers for flyback converters have to store energy which means they are not a high frequency transformer but they are in fact an inductor with primary and secondary windings. Being able to design your model on platforms other than the popular and commonly used windows operating system does make it possible for you to design the best object for your project irrespective of your type and version of your operating system.
Pdf high power, high voltage, high frequency transformer. Transformer design1 chapter 15 transformer design some more advanced design issues, not considered in previous chapter. Using the equation shown below, calculate the waac product and then use the area product distribution waac chart to select the appropriate core. It is sometimes also the frequency seen by the output filter, the frequency of the output ripple and input ripple current, and is an important concept in control loop design. Computer aided high frequency transformer design using. Further, highfrequency excitation and circuit topology requirements generate. 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. One of the potential applications of the high frequency high power transformer hfhpt is high power isolated dcdc converters for wind energy dc collection and transmission grids. Increasing the switching frequency to shrink the passive component size is the biggest contribution towards increasing power density.
This could lead to a great weight and size reduction, which. For heavy duty applications, the high voltage, high frequency transformers are able to accommodate 15,000 volts with the highest levels of safety and accuracy. Due to the critical designrelated complexity, smps design software such as pi expert for power integration or viper from st provides tools and excels for changing and configuring the smps transformer as required. Electrical power requirements in spacecraft are frequently met by the use of inverter circuits that turn direct into alternating current. High frequency planar transformers are widely used in many electronics converters, such as inverters, drives, power supplies, and resonant converters. Transformer design software integrated engineering software. High switching frequency opens up the possibilities to choose smaller smps transformers these high frequency, smps transformers uses ferrite cores. High switching frequency opens up the possibilities to choose smaller smps transformers these high frequency. Design and application of a highfrequency highvoltage generator matthias birle, carsten leu and stefan bauer ilmenau university of technology, centre for electrical power engineering, research group of high voltage technology, germany. For a required power output p out v out i out and a chosen switching frequency f a suitable core volume v e. Transformer analysis is one of the most widely used applications for our electromagnetic simulation software, and our customers depend on accurate, reliable results. High voltage high frequency power transformer for pulsed power applications 962 fig. Evaluationanddesignofhighfrequency transformers for on board. Computer aided high frequency transformer design using an.
Each design can be optimised by a combination of muratas transformer expertise and their own simulation software. The design process of the high frequency planar transformer is very complicated because of high frequency interaction between the windings due to which numerous problems persist, namely. Wang abstract this paper presents a design optimization procedure for high frequency transformer hft employed in bidirectional dual active bridge dab isolated dcdc converter. Plasma power supplies generate high voltages at high frequency, and are used for applications in the fields of plasma operations and research. One of the design challenges of the highdensity power converter design is to have highdensity magnetic components which are usually the most bulky parts in a converter.
Piexpert also provides specific information regarding choice of other components in the circuit including recommendation for. Osborne transformer corporation is a market leader in the design and production of premium quality transformers. Computer software can greatly ease the difficulty of. Figure 3 shows the high frequency model for a transmissionline 1. Design optimization of high frequency transformer for dual. These design parameters such as the power handling capacity s, the operating frequency of the power electronic circuit and hence the operating frequency of the medium frequency transformer f, the current density j, the maximum flux density b m, the window utilization coefficient of the windings k cu, and the waveform coefficient of. Hi today i finished winding my ferrite core transformer. Integrated engineering software ies is proud to feature tools ideal for transformer manufacturing and design optimization.
Osbornes high frequency power transformer designs are used to stepup, stepdown and isolate voltages. Isolation may be used to help provide a degree of secondaryside immunity from voltage spikes and noise both commonmode and transversemode present on the primaryside system. High frequency transformer is also available as poweresim will suggest a suitable. With more than 20 years of experience in providing customers with the industrys best transformers, our team at agile magnetics is well equipped to help you select the best high voltage, high frequency transformer for your job. The higher the frequency the smaller the mechanical size. High frequency transformers offer the advantage of smaller size and weight for a given power output. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model with parasitics. Design of plasma generator driven by highfrequency high. Design of inductors and high frequency transformers. This paper presents a high frequency high voltage generator which generates a high voltage up to 30 kv peak in the frequency range of 1 khz to. Databooks for appropriate cores provide information about the. Many of our products are custom designed or modified standard designs, prepared for unique customer applications. Current version can calculate values only for standard transformer core, thats w and u profile of core.
Design of high frequency mhz planar potcore transformer. It is capable of processing a large volume of information, performing all necessary calculations and producing design solutions in less time than it would take. I am also grateful for the financial support from the fulbrightsenacyt program to. Power transformer in smps is used to change amplitude of highfrequency pulses by the turns ratio and to. Highfrequency transformer design for solidstate transformers in. Poweresim free smps switching power supply transformer.
Design and optimization of hf transformers for high power dc. It is capable of processing a large volume of information, performing all necessary calculations and producing design solutions in less time than it would take an individual designer to prepare the same information. If your facility requires an extremely durable high frequency power transformer, youve come to the right place. In a singleended power circuit such as the forward converter, the power switch, the transformer, and the output. This paper presents a new topology for a high voltage hv 50 kv, high frequency hf 20 khz, multicored transformer suitable for use in pulsed power application systems. A prototype transformer has been designed and built which is novel in its combination of high voltage 50 kv, high frequency 20 khz and high power 25 kva specifications. Flyback transformers actually coupled inductors are covered in a later section. The electrical coupling between the primary and secondary windings of a transmissionline transformer improves the transfer of high frequency energy. Core material can be iron core, ferrite core or metglas core. Jun 30, 2017 16 ways to design a switchmode power supply. The physical size is dependent on the power to be transfered as well as the operating frequency. Flyback transformer circuits are used primarily at power levels in the range of 0 to 150 watts, forward converters in the range of 50 to 500 watts, halfbridge from 100 to l000 watts, and full bridge usually over 500 watts.
Matlab mathematical analysis software from the mathworks. Transformer for high power, high frequency applications. Magnetics design 4 power transformer design texas instruments. Download transformer calculator transmitter power amplifier. Voltboss high frequency transformers bicron electronics. Ordinary transformers for use in linear power supplies, inverters etc.
The higher the frequency the smaller the physical size. High frequency transformer design program optimized. Ultimately, an llc resonant converter with an output power of 1 kw, switching frequency of 500 khz, input voltage of 400 v, and output voltage of 300 v was achieved in this study. Magnetic builder is a useful magnetic design software. As the contextual idea behind the evolution of power electronic switched mode powers supplies against the general linear grid power supplies is, to convert and control the electrical power in accordance to the load. In most inverter circuits, the transformer is the heaviest component and usually accounts for a significant fraction of the power loss. A database with thousands of cores, wide variety of materials and wire is included, including a nonlinear saturable core spice model. High frequency power transformer osborne transformer. The tradeoff being that these transformers require external circuitry to drive the high frequencies.
Standard platforms or custom high frequency transformers view our platform guide below for popular examples of bicron voltboss transformers offered with a coronafree specification. A conventional resistive load is where the electrodes are in direct electrical. Please click here to see a list of our wideband high frequency power amplifiers. Unlike the generaluse power transformer, the modeling of highfrequency, highvoltage transformer is a quite different scenario.
Osbornes high frequency power transformer designs offer unmatched performance and longevity. How to design your own transformer for smps power supply circuits power. Design and analysis of a 35 kva medium frequency power. Murata announces innovative new transformer for high power.
The line frequency transformers are divided into two categories. Hybrid transformer are ordinarily small and under high load it can overheat. Design of high frequency power transformer for switched. Section 4 power transformer design power transformer design this section covers the design of power transformers used in buckderived topologies. Design and analysis of a 35 kva medium frequency power transformer with the nanocrystalline core material.
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