Enter the DC bus voltage (volts) and the difference in modulation indices into the calculator to determine the Inverter Voltage.

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## Inverter Voltage Formula

The following formula is used to calculate the Inverter Voltage.

**VI = Vdc * dm**

Variables:

- Where VI is the Inverter Voltage (volts)
- Vdc is the DC bus voltage (volts)
- dm is the difference in modulation indices

## How to Calculate Inverter Voltage?

The following two example problems outline how to calculate the Inverter Voltage.

**Example Problem #1:**

- First, determine the DC bus voltage (volts). In this example, the DC bus voltage (volts) is measured to be 95.
- Next, determine the difference in modulation indices. For this problem, the difference in modulation indices is calculated to be .45.
- Finally, calculate the Inverter Voltage using the formula above:

VI = Vdc * dm

Inserting the values from above and solving the equation with the imputed values gives:

VI = 95 * .45 = 42.75 (volts)

**Example Problem #2: **

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

DC bus voltage (volts) = 42

difference in modulation indices = .75

Entering these values into the formula or calculator above gives us::

VI = 42 * .75 = 31.5 (volts)