These scope images show the current and voltage waveforms present in a
bridge rectifier setup.

The transformer is driven by a high power audio amp in lieu of the grid so
I can control the amount of clipping of the 60 Hz waveform.

The transformer has an equivalent impedance of .125 ohms and 80 uH,
measured at the secondary with primary shorted. The bridge rectifier
consists of 4 Shottky diodes, rated at 80 amps. The filter capacitor is a
100,000 uF computer grade electrolytic.

The load was adjusted to give a current of 8 amps RMS in the secondary
winding for three amounts of peak clipping; the amount of clipping can be
seen in the scope images. The DC output current was as shown in the table
below.


Image Sec current DC current Irms/Idc

Bridge1A 8.0 amps 4.58 amps 1.74
Bridge2 8.0 amps 4.88 amps 1.64
Bridge3 8.0 amps 5.17 amps 1.55

The orange waveform is the voltage applied to the primary.
The green waveform is the current in the secondary.
The purple waveform is the voltage seen at the secondary.

Bridge1A shows waveforms with a DC load applied; Bridge1B shows the
situation with no DC load. In Bridge1B, you can see that the voltage at
the secondary is no longer clipped by the effect of the large current
pulses.

Bridge2 and Bridge3 don't show the secondary voltage.

In Bridge1A can be seen the slight delay of the peak of the current pulse
with respect to the peak of the applied primary voltage, due to the effect
of the leakage inductance.

The current waveforms were taken across a shunt, so the scale of the green
waveforms is 10 amps/division.

The amount of clipping seen in Bridge2 is about what my line voltage looks
like.