Voltage at a specific point in time
Calculator for the instantaneous voltage at a specific point in time
On this page you can calculate the instantaneous value of a sinusoidal oscillation at a specific point in time.
The reference voltage can be entered as an effective value or as a peak voltage.
|
Formula the instantaneous value
With the help of the angular frequency formulas below, the instantaneous value of voltage and current can be determined after a certain time \(\displaystyle t\).
α 0°
u = 0V
α 90°
u = û
α 180°
u = 0V
α 270°
u = û
α 360°
u = 0V
The pocket calculator must be set to radians to calculate these formulas.
Angular frequency \(\displaystyle ω= (2 · π · f)\)
\(\displaystyle u=û · sin(ω · t)\) \(\displaystyle =û · sin(2 π f · t)\)
\(\displaystyle i=î · sin(ω · t)\)
Legend
\(\displaystyle û\)
Peak voltage
\(\displaystyle u\)
Instantaneous voltage
\(\displaystyle f\)
Frequency
\(\displaystyle t\)
Time
\(\displaystyle ω\)
Angular frequency
\(\displaystyle î\)
Peak current
\(\displaystyle i\)
Instantaneous current
if you want to use degrees, you must convert the parameter to degree (x· 180/π)
Example: \(\displaystyle u =û · sin\left(2 π f · t · \frac{180}{π}\right)\)
AC functions
Alternating voltage valuesAlternating voltage and time
Frequency and wavelength
Alternating voltage value and angle
Frequency and periodic time
RMS value of a sinusoidal oscillation
RMS value of a sinusoidal oscillation with offset
RMS value of a sine pulse (half-wave rectification)
RMS value of a sine pulse (full-wave rectification)
RMS value of a square wave voltage
RMS value of a square pulse
RMS value of a triangle voltage
RMS value of a triangular pulse
RMS value of a sawtooth voltage
RMS value of a sawtooth pulse
|
|