Techniques for Power Conversion in Single-Phase and Multi-Phase Power Networks

A power converter arrangement comprising:

• an input filter comprising a first input filter capacitor, wherein the input filter is configured to:
• couple to a plurality of phase terminals of a multi-phase power network to receive a respective alternating current (AC) voltage, wherein each of the phase terminals is configured to provide the AC voltage with a different voltage phase, wherein at least one phase terminal of the multi-phase power network is a non-operational phase terminal;
• and
• filter the respective AC voltage to provide a respective input voltage;
• an electrical switching network comprising:
• an output terminal, wherein the first input filter capacitor is configured to reduce undesirable oscillations at the output terminal;
• and
• an array of bidirectional switches configured to generate a switched voltage from the respective input voltages at the output terminal;
• and
• a resonant circuit configured to convert the switched voltage into a supply voltage for supplying a load.

A method comprising:

• filtering a first alternating current (AC) voltage of a first phase terminal of a single-phase power network in order to provide an input voltage;
• generating, at an output terminal of an electrical switching network, a switched voltage from the input voltage using an array of bidirectional switches of the electrical switching network;
• reducing undesirable oscillations at the output terminal using a decoupling capacitor of the electrical switching network;
• and
• converting, by a resonant circuit, the switched voltage into a supply voltage for supplying a load.

A method comprising:

• filtering, by an input filter, alternating current (AC) voltages from a plurality of phase terminals of a multi-phase power network in order to provide a-respective input voltages;
• generating, at an output terminal of an electrical switching network, a switched voltage from the respective input voltages using an array of bidirectional switches of the electrical switching network;
• reducing undesirable oscillations at the output terminal by using an input filter capacitor of the input filter;
• and
• converting, by a resonant circuit, the switched voltage into a supply voltage for supplying a load.