Current fraction of a sinewave

In summary, PWM can simulate a decrease in voltage by using a stable amplitude. For example, a 10v sine wave with a 50% duty cycle would be equivalent to a 5v amplitude. This would result in a current that is half of the original value when passed through a standard resistor. When dealing with a sine wave, the RMS value is typically used, which stands for Root Mean Square and is valid for any periodic waveform. More information and formulas can be found at the provided link.
  • #1
Tesladude
168
1
So PWM can simulate a decrease in voltage when useing a stable amplitude.

10v50% duty cycle is 1/2 the amplitude meaning 5v. And if this is through a standard resistor then you will see 1/2 the current.

But what about a sine wave? What fraction or percentage does this come out to be? What current will you read with a 10v sine wave through a 5ohm resistor?
 
Engineering news on Phys.org
  • #2

Related to Current fraction of a sinewave

What is the current fraction of a sinewave?

The current fraction of a sinewave refers to the proportion or percentage of the maximum current value that is present at any given point on a sinewave curve. It is a measure of the amplitude of the current at a specific point in time.

How is the current fraction of a sinewave calculated?

The current fraction of a sinewave is calculated by dividing the instantaneous current value at a specific point on the sinewave curve by the maximum current value. This will result in a decimal value between 0 and 1, which can then be converted to a percentage by multiplying by 100.

What factors affect the current fraction of a sinewave?

The current fraction of a sinewave can be affected by a number of factors, including the amplitude and frequency of the sinewave, the nature of the circuit it is flowing through, and any resistors or other components in the circuit that may alter the current flow.

Why is the current fraction of a sinewave important?

The current fraction of a sinewave is an important concept in understanding the behavior of electrical circuits. It can help determine the amount of power being transferred through the circuit and can also be used to calculate the voltage and current at any point on the sinewave curve.

How is the current fraction of a sinewave used in practical applications?

The current fraction of a sinewave is used in a variety of practical applications, including designing and analyzing electrical circuits, power transmission and distribution systems, and electronic devices. It is also important in fields such as telecommunications, where the quality of a signal can be measured by the current fraction of a sinewave.

Similar threads

Help me understand how this breadboard works?
    • Electrical Engineering
Replies
6
Views
984
Trouble building a Buck Converter
    • Electrical Engineering
Replies
14
Views
866
Eddy current position sensor circuit
    • Electrical Engineering
Replies
5
Views
1K
Resistive heating power AC vs rectified AC/DC
    • Electrical Engineering
Replies
10
Views
2K
Resonance of a PWM DC Circuit
    • Electrical Engineering
Replies
12
Views
1K
Understanding current measurement on an irregular waveform
    • Electrical Engineering
Replies
3
Views
1K
Building a Buck Converter Using the LT1170
    • Electrical Engineering
Replies
10
Views
1K
How is KVL used in the node method KCL equations?
    • Electrical Engineering
Replies
3
Views
810
Help with current flow, voltage, resistors in basic circuit
    • Electrical Engineering
Replies
21
Views
3K
Calculating Wattage with Sine Wave
    • Electrical Engineering
Replies
20
Views
3K

Hot Threads

Recent Insights

Back
Top