The converter system's low complexity and simple control make it interesting for certain industrial applications. A disadvantage is the discontinuous input current that contains low-frequency harmonics. Another disadvantage is the high peak current stress on the semiconductors and EMI. Basically, the DC side of the diode bridge is shorted periodically with constant pulse frequency (significantly higher than mains frequency) by the power transistor. Then in each phase at the end of an on-interval a current value is obtained which is proportional to the instantaneous value of the according phase voltage, i.e. this is ohmic fundametal mains behavior. After turning off the power transistor, the demagnetization of the input inductors via the DC capacitor follows. The power flow is defined by the length of the on-intervals.

• Drag the red points in the control schematics (magenta) to change switching frequency and duty cycle. Higher frequency reduces stress but causes higher switching losses. The duty cycle controls the unidirectional power flow.
• Change the inductor via dragging with the mouse. Higher inductance means lower component stress but larger inductor volume.
• Change the load resistor. This will increase the currents.
• Drag the time slider to visualize various conduction paths.