Tutorial on how to Convert Watts to Amps, or how to convert Amps to Watts, conversion at fixed voltage or fixed current, how many watts in a volt, how many volts in a watt
Converting watts to volt-amps (VA)Use the following formula to calculate VA from watts: VA = Watts/PF PF = 0.95 Watts = Watts listed in the individual tables Parent topic: Hardware specifications
Since Watts are proportional to Amps squared or Volts squared, db (in power) = 20 log V1/V0 or db = 20 log I1/I0 . This is only useful in cases where the voltage or current is measured at the same impedance or resistance, which allows the ratio of two powers I2R or V2/R ...
amps are not precisely in phase you have to calculate the watts by multiplying the volts times the amps at each moment in time and take the average over time, i.e. the integral of V*A dt over a full cycle. The ratio between the VA (i.e. rms volts time rms amps) and Watts is ...