Design and optimization of medium frequency, medium voltage. This transformer may be used in self oscillating circuitry where the feed back winding is utilized or, in a. Figure 3 shows the high frequency model for a transmissionline 1. Figure 3 shows the highfrequency model for a transmissionline 1. 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. Previous research focusing on mft design has been introduced in 1 2 3 for traction applications and in 4 5 for renewable energy and smart grid applications. The properties of an smps transformer are highly dependent on the frequency in which they operate. Integrated high frequency transformer design virtual laboratory.
Please complete the form and a representative from ops will contact you to schedule a demonstration of the software. We can also optimize your overall circuit design with a transformer or inductor precisely customized for your application. Using toroidal power transformer in highfrequency application. At the minimum, these include the input voltages and frequency. A short presentation on the basic of high frequency transformer design by prof. No matter which options our clients choose, our high voltage, high frequency transformers are designed and manufactured to fully comply with rohs and other standards.
Singleended buck operates at a higher frequency than a typical line transformer. Htlt powerdistribution transformer design software. Inductors need an air gap for storing energy, transformers do not. Design of inductors and high frequency transformers. Offline standby ups is mainly used for small office and home office, also called soho. Integrated high frequency transformer design virtual.
Oct 16, 2019 the properties of an smps transformer are highly dependent on the frequency in which they operate. This is a windows based software for designing small transformers working on line frequency 50 60 hz and high frequency for use in smps. Using toroidal power transformer in high frequency. Used in a class of power supplies known as switchedmode. To make a new design just input basic parameters like kva rating of transformer, hthv voltage of transformer, ltlv voltage of transformer, impedance of transformer, load losses of transformer, no load losses of transformer, flux density of transformer and leave rest upon the software to take default values like various clearances, conductor. 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. Design and optimization of medium frequency, medium. Xx28, y7 the objective of this project is to design a xxykva, 2206600 volts, high frequency 100 khz singlephase transformer by doing the necessary calculations to provide the following. The working principle of hf transformer is the same as 50hz transformers, only the nonidealities should be taken into the account. A highfrequency transformer with non inherently shortcircuit proof as per iec. Dec 23, 2012 on different forums, i often find people asking for help in calculating the required turns for a ferrite transformer they are going to use in high frequency smps inverters. Magnetics design 4 power transformer design texas instruments. Design optimization of high frequency transformer for dual active bridge dcdc converter k. Each bridge is controlled to produce a highfrequency square wave voltage at its transformer terminals and the power flow from one dc source to the other is regulated via appropriately controlling the phaseshifted angle between these two square wave voltages 4.
The high frequency coaxial transformer hfct has been successfully used in many areas. Transformer analysis is one of the most widely used applications for our electromagnetic simulation software, and our customers depend on accurate, reliable results. Ordinary transformers for use in linear power supplies, inverters etc. High frequency transformer design program optimized. Several novel concepts are proposed to reveal the essence of the transformer design. Smps transformer, what is working concept, how smps switch transformer works are explained in transformers tutorial video. All new 15kv pkpk high voltage 70 watt output, 20 khz100 khz operating frequency, in 1. This work proposes a design and optimization methodology of a high power high frequency transformer accounting for the tuned leakage inductance of the trans. Wire effective resistivity cm total rms winding current, ref to pri itot a desired turns ratios n2n1, n3n1, etc.
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. Find high power rf transformers related suppliers, manufacturers, products and specifications on globalspec a trusted source of high power rf transformers information. High frequency transformer design program optimized program. Aug 03, 2019 generally, the higher operating frequency is, the more power could be pushed through same transformer size. Transformer design software integrated engineering software. My initial consideration was for a open circuit, transformer draws very less current and hence i should be able to test it on breadboard, but after seeing those fumes im surprised if transformer draws too much current for open circuit as well. At high frequency one can make far less turns in windings, yet they still would have enough inductance to resist incoming voltage. Rale small transformer design software is worldwide best design software. Lewis research center summary users of this program are relieved of most computational details, while maintaining control over most engineering decisions, in the design of toroidal transformers for use in parallel inverter circuitry. 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.
Highfrequency transformer hft operates using the same principles as standard transformers. Ferrites are the most common materials designers use for highfrequency pulsetransformer design, although tapewound siliconsteel cores are useful for transformers that operate at a few kilohertz or less. 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. On different forums, i often find people asking for help in calculating the required turns for a ferrite transformer they are going to use in highfrequencysmps inverters. An overview of the adaptation of the underlying theory for use in computer aided design will be presented, along with a number of screenshots of the software in. It is used when ac line voltage is present a relay bypasses the inverter, which remains off. 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. 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. A high frequency model of transformer shielding is proposed for the use with circuit simulator software modelling the high frequency behaviour of the shielding. The magnetic cores are significantly different for inductors and high frequency transformers. Yet most highfrequency transformers use less than 25% of the available core window for ef. Low frequency winding losses are easy to calculate, but high frequency eddy current losses are difficult to determine accurately, because of the high frequency harmonic content of the switched rectangular current waveshape. What are the switch and smps highfrequency electrical transformer.
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. Transformers are more efficient at higher frequencies because as we increase frequency losses become less. The line frequency transformers are divided into two categories, 1. Computer software can greatly ease the difficulty of. For folks working with radio frequency circuits, such as amplifiers, antennas, and transmitters, transformers are typically used either to step impedance levels up and down or to provide dc isolation between two parts of a circuit. Any help towards testing a high frequency transformer is highly appreciated. Design of inductors and high frequency transformers inductors store energy, transformers transfer energy. How to design your own transformer for smps power supply. Design and analysis of a 35 kva medium frequency power. Transformer design software, inductor design software.
Is there software to optimize ferrite core dimensions for high. The higher the frequency the smaller the mechanical size. Edn design highperformance pulse transformers in easy stage. Ferrite transformer turns calculation for highfrequency. Calculation of high frequency transformers a high frequency transformers transfer electric power. Integrated engineering software ies is proud to feature tools ideal for transformer manufacturing and design optimization. You may be able to achieve it by using comsol commercial software. In a singleended power circuit such as the forward converter, the power switch, the transformer, and the output. 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. Transformer design software, inductor design software, high. This solution covers mainly power discrete solutions and is usually divided into low frequency and highfrequency transformerbased systems. The flowchart that can be used for transformer design with fea software support is given in fig. Wang abstract this paper presents a design optimization procedure for high frequency transformer hft employed in bidirectional dual active bridge dab isolated dcdc converter. This paper studies the high frequency high efficiency transformer design.
Its mechanical size depends on the power to be transfered and on the operating frequency. Thus, demand for hfct design and device development is increasing. So if we want small but powerful supply, we have to go for high frequency. High frequency transformers transfer electric power. Design and optimization of hf transformers for high power. From very beginning, the company has been dedicating in transformer design and manufacturing. Murata is able to design custom high power, high frequency transformers operating around 450 khz with power ratings from 30 kw to 400 kw. In order to have an accurate simulation, i have to know the winding resistance as well as the leakage and magnetizing inductance.
The software can accommodate user inputs of voltage, current, frequency, andor desired impedance and will recommend the best part number for the application. The electrical coupling between the primary and secondary windings of a transmissionline transformer improves the transfer of high frequency energy. Ferrite transformer turns calculation for highfrequencysmps. In a highfrequencysmps inverter, the ferrite transformer is used in the stepupboost stage where the low voltage dc from the battery is stepped up to high voltage dc. So, i need to design a high frequency transformer with these characteristics.
Although transformer design and optimization is widely discussed in. At agile magnetics, we have been designing and manufacturing these products since our company began in 1992. Two factors cause this relatively poor utilization. New transformer for high power, high frequency applications. This paper studies the highfrequency highefficiency transformer design. The higher the frequency the smaller the physical size. Hphf transformer high power, high frequency hphf transformer high power, high frequency breaking the powerfrequency barrier with patented pdqb winding technology. How to calculate ferrite core transformers homemade circuit. 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. Hitrin is a powerful computeraided design program, which is a companion program to trans intended for high frequency applications up to 500khz. Magnetics designer produces a complete transformer or inductor design based upon electrical specifications, including a winding sheet report and a spicecompatible model. You need to determine a few things before you can start to design a transformer, though.
Ferrites are the most common materials designers use for high frequency pulse transformer design, although tapewound siliconsteel cores are useful for transformers that operate at a few kilohertz or less. 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. It is capable of processing a large volume of information, performing all necessary calculations and producing design solutions in less time than it would. Why are transformers more efficient at higher frequencies. The expanding demand for electronic equipment is fueling the need for more high frequency transformers. The electrical coupling between the primary and secondary windings of a transmissionline transformer improves the transfer of highfrequency energy. Quality guaranteed agile magnetics employs computer modeling for all customdesigned high voltage, high frequency transformers with our proprietary software, allowing for all electrical specifications to be included beginning with the design phase. Magnetics designer software makes transformer and inductor design easy 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.
Generally, the higher operating frequency is, the more power could be pushed through same transformer size. The main difference is that, as its name implies, it operates at higher frequencies, whereas most power transformers operate at 5060 hz, hft uses frequency ranges from 20 khz to over 1mhz. High voltage high frequency power transformer for pulsed. Highfrequency transformer design for solidstate transformers in. The line frequency transformers are divided into two categories. A complete software package for transformer design optimization and.
Please click here to see a list of our wideband high frequency power amplifiers. Pdf high power, high voltage, high frequency transformer. The program predicts magnetizing and leakage inductance, interwinding capacitance, peak flux density, dc winding resistance, high frequency ac resistance. Complete software package for transformer design optimization and economic evaluation analysis. In order to minimize the winding loss, several winding structure are proposed and compared. Investigation on transformer design of high frequency high. The physical size is dependent on the power to be transfered as well as the operating frequency.
Wang abstract this paper presents a design optimization procedure for high frequency transformer hft employed in. The planar transformer winding with pcb or spiral windings are discussed. Information regarding design specifications will help tailor the demonstration to your specific design type. It support led driver design, pfc, notebook adaptor, phone. The first method is implemented in the circuit simulation software utilizing a 1d electromagnetic analysis. Design optimization of high frequency transformer for dual. Special transformers for high frequency high voltages applications are increasingly developed and designed with regard to the magnetic transfer and dielectric strength 2, 3. Each design can be optimized by a combination of muratas transformer expertise and their own simulation software. Its toroidal transformer design yields high performance with. 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. How to calculate ferrite core transformers homemade. 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.
For a required power output p out v out i out and a chosen switching frequency f a suitable core volume v e must be determined. Design and analysis of a 35 kva medium frequency power transformer with the nanocrystalline core material. Both, electrical electromagnetic and thermal properties of the transformer is analyzed with fea based software. The most popular shapes are toroids and ungapped pot cores, but many other shapes also work. 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. Design and optimization of hf transformers for high power dc. High frequency transformer is also available as poweresim will suggest a suitable transformer for the requested operating frequency. A comprehensive model containing the proposed elements can help in evaluating electromagnetic compatibility emc of a future transformer during its design period. Using toroidal power transformer in highfrequency application read 11534 times. Highfrequency planar transformer parameter estimation ieee. Design support software simsurfing simsurfingweb watch our videos to learn how simsurfing can help you design support data.
How to design your own transformer for smps power supply circuits. Magnetic builder magnetic design software, inductor and. Toroidal transformer design program with application to inverter circuitry by james a. A 35 kva medium frequency transformer with nanocrystalline core material is designed. I still could not locate one which is easy to understand for novice. The highfrequency transformers are calculated with the help of the effective core volume ve. Jul 23, 2011 a short presentation on the basic of high frequency transformer design by prof. It has many benefits and advantages compared with other transformer products. Due to this, ferrite core transformers are used in highfrequency applications such as in switch mode power supply smps. This paper presents different methods to determine the parameters for the equivalent electrical circuit model of a high frequency planar transformer. Typical design applications include high frequency switching regulator transformers and output chokes for offline, fullwave and forward converters, 60 hz singlephase line transformers, ac inductors, planar magnetics and 400 hz aircraft transformers.
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