Enter the duty into the calculator to determine the Voltage from PWM.
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Voltage from PWM Formula
The following formula is used to calculate the Voltage from PWM.
V = D / 256 * 5
Variables:
- Where V is the Voltage from PWM (volts)
- D is the duty
How to Calculate Voltage from PWM?
The following two example problems outline how to calculate the Voltage from PWM.
Example Problem #1:
- First, determine the duty. In this example, the duty is measured to be 200.
- Finally, calculate the Voltage from PWM using the formula above:
V = D / 256 * 5
Inserting the values from above and solving the equation with the imputed values gives:
V = 200 / 256 * 5 = 3.906 (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:
duty = 21
Entering these values into the formula or calculator above gives us::
V =21 / 256 * 5 = .410 (volts)
