File translated into English by Vladimir Denisenko and Andrew Buckin

[TITLE]
title = ExcellentIT - SMPS transformer calculation tool
version = Version

[ABOUT]
s1 = Vladimir Denisenko, Russia, Pskov
s2 = I would be thankful for financial support

[MENU]
s1 = About
s2 = Help
s3 = Language
s4 = English
s5 = Hints

[BASE CORES]
s1 = Magnetic core
s2 = Shape
s3 = Other
s4 = Material
s5 = Dimensions of the core:
s6 = Parameters of the core:
s7 = Effective permeability
s8 = Effective cross section area
s9 = Area of the core window
s10 = Length of the magnetic path
s11 = Volume of the core
s12 = Ae, mm2
s13 = An, mm2
s14 = le, mm
s15 = Ve, cm3
s16 = Adding to database (input dimensions)
s17 = Adding to database (input data)
s18 = Add to database
s19 = Delete from database
s20 = Please enter the name for the new core when you add it to the database.\nThere is no need to manually add a prefix about it's form, the program does it automatically.
s21 = If "Other" is chosen as the form of the core, please take the parameters from the manufacturer's documentation.
s22 = The dimensions input is used for cores of a simple geometric form, like a ring or EE.\nDespite that the calculations are made with the geometric measures, the results from such a calculation might be inaccurate, due to the difference between the manufacturers' specifications and direct calculation with geometric measures.
s23 = Enter the parameters for complex core types, such as RM or PQ.
s24 = You forgot to enter a name for the core before adding it.
s25 = You forgot to enter permeability.
s26 = You forgot to enter all the dimensions.
s27 = You forgot to enter all the parameters.
s28 = Are you sure you want to remove it from the core database?

[TOPOLOGY]
s1 = Converter topology
s2 = Push-Pull
s3 = Half-Bridge
s4 = Full bridge
s5 = See circuits of converter topology in the menu.

[INITIAL DATA]
s1 = Initial data
s2 = Flux density, maximum
s3 = Switching frequency
s4 = Duty cycle, maximum
s5 = Dead time
s6 = Rds(on)
s7 = Saturation voltage
s8 = Winding fill factor
s9 = Current density
s10 = Input voltage (min., rated, max.)
s11 = Secondary windings
s12 = Regulation
s13 = Rated voltage
s14 = Rated current
s15 = Minimal current
s16 = Diode's forward voltage
s17 = Diameter of wire (desired), mm
s18 = Rectification:
s19 = Single rail with center...
s20 = Dual rail with center...
s21 = Bridge
s22 = TL494 etc.
s23 = IR2153 etc.
s24 = Usat.
s25 = Rds(on)
s26 = DC
s27 = AC
s28 = No
s29 = Yes
s30 = Recomended settings
s31 = min.    rated   max.
s32 = Flux density range is 50-300mT. The hysteresis losses depend on the combination of the flux density and frequency.\nAt high frequencies and high flux density, the losses will turn out to be so high, that the heating of the core will exceed reasonable limits.\nHence the peak flux density is limited automatically depending on the entered frequency.
s33 = Frequency range is 25-300 kHz.\nWe see no reason for DIY to run faster due to higher switching losses and potentially worse EMI performance.
s34 = This field is used for TL494 and similar ICs with a duty cycle that is independent of the frequency.
s35 = This switch is used for TL494 and similar ICs, the maximum duty cycle of which is independent of the frequency.
s36 = This field is used for ICs, for which the dead time is either fixed, like in IR2153, or is determined by external sources, like in SG3525, and is also independent of the frequency.
s37 = This switch is used for ICs, for which the dead time is either fixed, like in IR2153, or is determined by external sources, like in SG3525, and is also independent of the frequency.
s38 = In this field the resistance of the open channel has to be entered Rds(on).
s39 = This switch is used for MOSFET.
s40 = This field is for the BJT or IGBT saturation voltage.\nFor field-effect transistors this field shows the calculated value for the voltage loss of the transistor.
s41 = This switch is used for BJT or IGBT saturation voltage.
s42 = The winding fill factor describes what part of the core window is filled by the winding.\nThe winding fill factor can be in the range of 0.1-0.35, depending on the size of the core, lower values indicate smaller sizes.
s43 = The current density depends on the cooling conditions and the size of the core.\nWith natural cooling one should choose 4-6A/mm^2.\nIf a fan is used, the current density can be set higher, up to 8-10A/mm^2.\nHigher current density indicates smaller cores.\nWith artificial cooling, the allowed current density depends on its intensity.
s44 = The calculation is made assuming minimal input voltage.\nPlease note, that feedback is taken from the first output ONLY, so it is better if it will be the rail with the highest load.\nTo improve the regulation for all rails together try using the common choke.
s45 = Calculation will use the rated input voltage for all output rails.\nOne does not really need to use common choke to improve the regulation for all rails together.
s46 = These fields are for the minimal current consumption value, which is used for the calculation of the minimal inductance for the output choke.\nFor instance it can be the bias current of the amp etc.\nOne should not set the value too low though, because it can result in high inductance. It might be hard to make an inductor for a high inductance, and a low minimal current, because one has to consider not letting the core reach saturation.
s47 = Please refer to the diode's datasheet and check the Vf parameter for the actual current.\nIf the Diodes aren't loaded with nominal current, then one can evaluate the decline of the entered current by the graph in the datasheet.
s48 = Primary winding wire diameter.
s49 = 1. Select the Flux density regarding frequency.\n2. Set the winding fill factor\n3. Set the Rds_on of MOSFET.\n4. Set the current density.
s50 = See circuits of rectification in the menu.
s51 = Standard of wires
s52 = Metrical, mm
s53 = Standard AWG
s54 = Wire size (desired), AWG
s55 = To use the desired wire diameters put a tick here.\nI suggest to let the program calculate the diameters of the wires and the number of the wires in the windings first to make the best of a given diameter.

[RESULTS]
s1 = Results of the calculation
s2 = Rated transformer power
s3 = Output power
s4 = Core losses
s5 = Efficiency (copper losses are excluded)
s6 = Winding fill factor
s7 = Primary inductance
s8 = Primary magnetizing current
s9 = Amplitude of primary current
s10 = Current consumption
s11 = Primary winding turns
s12 = Wire diameter for the primary winding
s13 = Wire skin diameter
s14 = Secondary windings
s15 = Winding turns
s16 = Diameter mm õ number
s17 = Voltage min, V
s18 = Voltage rated, V
s19 = Voltage max, V
s20 = Choke inductance
s21 = For the Push-pull topology the inductance will be calculated for a single primary winding, not for both together.
s22 = Minimum amplitude of the secondary windings, Volts
s23 = Rated amplitude of the secondary windings, Volts
s24 = Maximum amplitude of the secondary windings, Volts
s25 = Duty cycle
s26 = min.         rated      max.

[BUTTONS]
s1 = Exit
s2 = Calculate
s3 = Load
s4 = Save
s5 = Load initial data from a .sav file.
s6 = Save initial data as a .sav file.

[OTHERS]
s1 = Open file
s2 = Open
s3 = Save as
s4 = Save
s5 = File name
s6 = Replace the file
s7 = Cancel
s8 = Attention!
s9 = The file is not in the root folder
s10 = V
s11 = A
s12 = W
s13 = kHz
s14 = mH
s15 = µH
s16 = µS
s17 = Ohm
s18 = mm
s19 = T
s20 = A/mm2
s21 = Drop at the transistors is too large.\nIncorrectly selected transistors.\nLarge channel resistance or saturation voltage.
s22 = Number of turns of the primary coil is < 4!\nReduce the frequency.
s23 = Winding fill factor is above 0.3.\nCalculate layout of the winding or select a larger core.
s24 = The desired diameter is replaced by the nearest standard diameter

[HINTS]
s1 = Converter topology and types of rectification
s2 = Converter topology:
s6 = Type of rectification:
s7 = Single rail with center-tapped transformers
s8 = Dual rail with center-tapped transformers
s9 = Bridge