System and method for starting up a high density isolated DC-to-DC power converter

A DC-to-DC power converter comprising:

• a transformer comprising a primary side and a secondary side;
• a primary circuit electrically coupled to the primary side of the transformer, the primary circuit including a primary microcontroller configured to generate a first energizing signal that energizes a portion of the primary circuit;
• and
• a secondary circuit electrically coupled to the secondary side of the transformer, the secondary circuit including a secondary microcontroller communicatively coupled to the primary microcontroller, the secondary microcontroller configured to provide, in response to a bias voltage caused by the first energizing signal, an instruction to the primary microcontroller that causes the primary microcontroller to relinquish control of the primary circuit to the secondary microcontroller, the secondary microcontroller further configured to provide a second energizing signal to the portion of the primary circuit.

A method of operating a DC-to-DC power converter, the method comprising:

• receiving, by a primary microcontroller disposed within a primary circuit of the DC-to-DC power converter, a first bias voltage;
• generating, by the primary microcontroller and in response to the first bias voltage, a first energizing signal that energizes a portion of the primary circuit;
• sending, by a secondary microcontroller disposed within a second circuit and in response to a bias voltage caused by the first energizing signal, an instruction to the primary microcontroller to relinquish control of the primary circuit to the secondary microcontroller;
• receiving, by the primary microcontroller, the instruction to relinquish control of the primary circuit to the secondary microcontroller;
• and
• transmitting, by the secondary microcontroller, a second energizing signal to the portion of the primary circuit.