Three-port direct current converter

A three-port direct current converter comprising:

• at least one input direct current source;
• at least one storage battery;
• a primary side circuit having a connection between the at least one input direct current source and the at least one storage battery, the primary side circuit configured for operating as a buck converter;
• a secondary side circuit having a connection between the at least one storage battery and at least one load, the secondary side configured for operating as a boost converter;
• a single magnetic component shared by the primary side circuit and the secondary side circuit;
• actively controlled switching elements configured to control power flows of the three-port direct current converter, the actively controlled switching elements being metal-oxide-semiconductor field-effect transistors (MOSFETs);
• a MOSFET M2 is shared between the primary side circuit and the secondary side circuit;
• the secondary side circuit comprises a MOSFET M3 between the first inductor and the at least one load;
• further comprising:
• a MOSFET M5 configured to enable and disable the first power flow configuration, such that when the M5 is turned on energy is processed from the at least one input direct current source to the at least one storage battery;
• a MOSFET M4 configured to enable and disable the second power flow configuration, such that when the M4 is turned on the at least one storage battery powers the at least one load;
• and
• a MOSFET M1 configured to control the current and voltage of the at least one first single magnetic component;
• wherein M1, M2 and M3 are driven by pulse-width modulated signals, M4 and M5 are driven by enable/disable signals that do not vary within the power flow configurations, and the three-port direct current converter is configured to operate in two mutually exclusive power flow configurations.

A three-port direct current converter comprising:

• at least one input direct current source;
• at least one storage battery;
• a primary side circuit having a connection between the at least one input direct current source and the at least one storage battery, the primary side circuit configured for operating as a buck converter;
• a secondary side circuit having a connection between the at least one storage battery and at least one load, the secondary side configured for operating as a tapped boost converter;
• a single magnetic component shared by the primary side circuit and the secondary side circuit;
• a second magnetic component serially coupled to the first single magnetic component, the first and second magnetic components configured to perform a voltage step-up,
• wherein the three-port direct current converter is configured to operate in two mutually exclusive power flow configurations and the single magnetic component is a first single magnetic component shared by the primary side circuit and the secondary side circuit.