Peak Voltage Calculator:
Enter the value of RMS voltage, Vrms(V) to determine the value of Peak Voltage, Vp(V).
Peak Voltage Formula:
Peak voltage (Vp) refers to the maximum instantaneous value of voltage in an alternating current (AC) waveform. It represents the highest point the voltage reaches above the zero level in one cycle of the waveform. This value is crucial in understanding the behaviour of AC circuits, especially for components like capacitors and transformers, which are sensitive to peak voltage.
The peak voltage is related to the root mean square (RMS) voltage (Vrms), which is a measure of the effective voltage that delivers the same power as an equivalent direct current (DC) voltage. The relationship between peak voltage and RMS voltage is consistent for sinusoidal waveforms, governed by the square root of 2 (approximately 1.414).
Calculating peak voltage is essential for designing electrical systems to ensure that components can withstand the highest voltage without damage. It is also used in determining the amplitude of an AC signal in various electronic applications, such as oscilloscopes and power supplies.
Peak Voltage, Vp(V) in Volts equals the RMS voltage, Vrms(V) in volts multiplied by the square root of 2.
Peak Voltage, Vp(V) = Vrms(V) * √2
Vp(V) = peak voltage in volts, V.
Vrms(V) = RMS voltage in volts, V.
Peak Voltage Calculation:
1.An AC circuit has an RMS voltage of 120V. Calculate the peak voltage.
Given: Vrms(V) = 120V.
Peak Voltage, Vp(V) = Vrms(V) * √2
Vp(V) = 150 * √2
Vp(V) = 212.13V.
2.An AC signal has a peak voltage of 230V. Calculate the RMS voltage.
Given: Vp(V) = 230V.
Peak Voltage, Vp(V) = Vrms(V) * √2
Vrms(V) = Vp(V) / √2
Vrms(V) = 230 / √2
Vrms(V) = 162.66V.