Converter

A converter comprising:

• a bridge circuit having a first leg and a second leg, each leg including a high switch and a low switch, the high switches being connected to a first energy source and the low switches being connected to ground;
• a coupling network(s) having a first connection between the switches of the first leg and a second connection between the switches of the second leg;
• and
• a second (or multiple secondary) energy source(s) connected between the coupling network(s) and ground, wherein:
• the converter is a boost active bridge converter that includes a capacitor, the capacitor being the first energy source;
• and
• the converter includes a DC energy source having a positive terminal electrically located between the first leg and the second leg, wherein the DC energy source is the second energy source.

A converter comprising:

• a bridge circuit having a first leg and a second leg, each leg including a high switch and a low switch, the high switches being connected to a first energy source and the low switches being connected to ground;
• a coupling network(s) having a first connection between the switches of the first leg and a second connection between the switches of the second leg;
• and
• a second (or multiple secondary) energy source(s) connected between the coupling network(s) and ground, wherein
• the converter is controlled so that there is a difference in DC voltage on the first leg relative to the second leg, wherein the first leg in combination with the second leg converts AC power to DC power or visa-versa.