This component divides one voltage (the y input, or numerator) by another (the x input, or denominator).

Vo = Vy/Vx

You can limit the value of the denominator input to a value above zero by using the parameter XLOWLIM. This limit is approached through a quadratic smoothing function, the domain of which you can specify as an absolute value in XDS.

In the example shown below, the 120 V rms (339.38v peak to peak) sine wave at the Y input is divided by a 16.96V DC voltage at the X input. The result is 339.38v (peak to peak) / 16.97V = 20 v peak to peak.

If Vx is replaced with a 12 V rms, in phase with Vy, the output will be 10V DC.

  If the X (denominator) voltage crosses 0 v when any voltage is present at the Y (numerator) terminal, the quotient will go to infinity and a large positive or negative “spike” will be observed on the scope.

Characteristic Equation

where:

Vx = input voltage at x

Vy = input voltage at y