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This is significant in AC applications as "Apparent Power" (Volt-Amperes) can be easily calculated using Voltage multiplied by Current. This can be also be done purely through code including the ability to measure non-linear loads, which I will aim to cover in another instructable.įor the benefit of any beginners reading this, power factor is the ratio of true power to apparent power and can be calculated by finding the cosine of the phase angle between the supply voltage and current (see attached image from Google). This is a hardware solution to the problem of measuring PF in linear loads. Warning! If you are not trained or do not know how to work correctly with mains voltage I suggest you don't proceed with that part of the instructable and I will show you a safe method of proving the circuit works. I am an electrical engineer and very competent when working with mains potential (i.e.CFL Bulbs, switch mode power supplies, LED's) This will NOT work with NON-LINEAR (e.g.This will ONLY work with LINEAR loads (e.g inductive motors, transformers, solenoids).Before we start theres a few things to bear in mind: In the situation that you do not have this feature you must create a new component for layout only to completely replace the component in the schematic.Hi everyone! This is my third instructable, hope you find it informative :-) This will be an instructable on how to make a basic power factor measurement using an Arduino.

Note: The Spreadsheet View is not available in all versions of Multisim. In the newer version of Multisim 14.0, you would see the word Package instead of Footprint. The footprint or package is now associated with this virtual component.

Pick the appropriate footprint or package for the virtual component from your database.

In the Edit Footprint or Package dialog box click the Select From Database button:.

When your virtual component is selected, click on it’s Footprint or Package field:.

Scroll over to the Footprint or Package column.

Select the Component tab in the Spreadsheet View.

Turn on the Spreadsheet View by selecting View»Spreadsheet View.

This is not a change that can be saved to a database, and therefore you will need to repeat the following steps for each instance of the component:

The footprint or package assigned to the virtual component is only valid for the symbol that is placed upon the schematic. It is possible, however, to assign a footprint or a package to your virtual components so that they can be transferred to a full PCB design.

Therefore, the component does not have a natural footprint or a package. This is because virtual components are modeled theoretically rather than as a real device that can be purchased. In Multisim, virtual components and few real components do not automatically have a footprint or a package associated with them.