Transformer Calculation Help File

Primary coil - parametars

Clik on region from which you want help or see below.

This is palce where you type which input voltage you use for transformer. That's voltage what you transform.
There is no option for enter input amperage, because that value is recalculated and depend on output power which you transform.
You can use more input voltages, eg. if you build transformer 2x12V to 220V, then you enter two times 12 volts and aperage will be recalculated in right ratio.

Input voltge of transformer

This is where you type input voltage for your transformer.
You can use up and down arrows to increase or decrease voltage value.
If you typing number, don't press enter to add that value to list, use add button.

Add button for adding wanted voltage to list

This is add button, after you type wanted value for input voltage, use this button to add that value to list.
When value is in list, then you can calculate with it.

List of selected input voltage

There are displayed all input voltages which you want use in calculations.
Selecting item (value) here will automaticaly select related items (values) in amperage, coils and wire thickness lists.
To deselect, double click on selected value.

List of calculated input amperage

Here is displayed properly amperage for input voltage in dependence of requested output power and maximum power of EI core.
Selecting value here will automaticaly select related values in voltage, coils and wire thickness list.
To deselect, double click on selected value.

Delete and Clear buttons

Those buttons are for deleting and clearing values from all input lists.
That includes voltage, amperage, coils and wire thickness list.
Use delete button to remove one selected value and related values from all input lists.
Clear button use for removing all values from all input lists.

Current calculated power

This is place where is displayed current output power.
If background color in maximum power of core become red, then you can see from here how much is difference in power.
This information is usefull to see how much you must reduce your output values or how much you can increase output values for full usage of core power.