The laboratory implementation of a low power prototype of
the proposed topology, allowed to confirm the computer
simulations presented. The DC side of the converter was
composed of a 10000 UF capacitors (to obtain a very low
ripple in the output voltage), a 10 mH inductors and an
output resistor of 70R. The AC side is composed of an
inductor of 5mH and a 15uF capacitor. Figures 6 and 7
shows a simulation and an experimental result of the input
voltage (Vsm, = 60 V) and line current with the current
controller parameters K = 1.3e-4, ~ 0 . 2 a5nd S=0.5, and it is
possible to confirm, that the proposed rectifier provide
almost sinusoidal input current and high power factor. The
input source current is dominated by the mains frequency
sinusoid and the switching frequency components are greatly
attenuated. Figures 8-12 show simulation and experimental
results of the DC reactor current (iLo]) and the AC capacitor
voltage. It is important to verify that the DC reactor current
its different then the one expected in the circuit of the four
switches, which is explained by the magnetic coupling
between the inductors. When one of the switches is ON only
in one of the DC reactor flows the current. When the
switches are OFF there is current in both of the DC reactors,
transferring the energy for the two output capacitors. The AC
capacitor voltage has a ripple that depends of the histeresis of
the current controller and is in phase with the input line
voltage. A comparison between the experimental and the