Multi-Semiconductor Solid State Power Controllers And Method For Managing Inductive Switching Transients Thereof

A bi-directional alternating current solid state power controller system, comprising:

• a plurality of pairs of switching devices, each pair is connected in parallel for performing switching;
• one or more main transient voltage suppressors configure to perform voltage clamping;
• a plurality of parasitic inductances each connected in series with a switching device of the plurality of pairs of switching devices;
• and
• a plurality of local transient voltage suppressors, each connected in parallel with a series connection of a switching device of the plurality of switching devices and at least one parasitic inductor of the plurality of parasitic inductances and configured to dissipate energy stored within the at least one parasitic inductor of the plurality of parasitic inductances.

A method for managing transients in a direct current solid state power controller, the method comprising:

• performing switching with a plurality of switching devices connected in parallel;
• performing voltage clamping using one or more main transient voltage suppressors connected to the plurality of switching devices;
• connecting at least one parasitic inductor of a plurality of parasitic inductances in series with a switching device of the plurality of switching devices;
• and
• connecting in parallel a local transient voltage suppressor with a series connection between a switching device of the plurality of switching devices and at least one parasitic inductor of the plurality of parasitic inductances, dissipating energy stored within the at least one parasitic inductor of the plurality of parasitic inductances.