- #1

tommyhakinen

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## Homework Statement

How to find the input power factor(PF) and total harmonic distortion (THM) of a halfwave rectifier with a free wheeling diode, ripple free load current, and transformer turns ratio of 1?

## Homework Equations

PF = (Vs*Is*Cos(theta))/(Vs*Is)

THD = [(Is/Is1)^2 - 1]^0.5

Vs = transformer secondary rms voltage

Is = transformer secondary rms current

Is1 = fundamental of Is

## The Attempt at a Solution

I get confused on finding the Is and Is one. other method of finding PF is using

PF = Pac/VA where

Pac = output rms power

VS = transformer volt-ampere rating

how do I solve this problem?