System and method for controlling dc - dc converter

A system for controlling a DC-DC converter, comprising:

• a microcomputer for deriving an output limiting current value by dividing an output limiting power value by an output voltage value;
• a conversion circuit for scaling the output limiting current value to a limiting voltage value;
• a voltage control circuit for deriving a control voltage value based on an output voltage value and a reference voltage value and defining the limiting voltage value as a control voltage limiting value;
• and
• a current control circuit for generating a pulse width modulation (PWM) control signal based on the control voltage value.

A method of controlling a DC-DC converter, comprising:

• deriving an input limiting current value by dividing an input limiting power value by an input voltage value;
• scaling the input limiting current value to a limiting voltage value;
• deriving a control voltage value based on a reference voltage value and a feedback output voltage value, and defining the limiting voltage value as a control voltage limiting value;
• and
• generating a Pulse Width Modulation (PWM) control signal for a bridge converter based on the control voltage value.

A method of controlling a DC-DC converter, comprising:

• deriving an output limiting current value by dividing an output limiting power value by an output voltage value;
• scaling the output limiting current value to a limiting voltage value;
• deriving a control voltage value based on a reference voltage value and a feedback output voltage value, and setting the limiting voltage value as a control voltage limiting value;
• and
• generating a pulse width modulation (PWM) control signal for a bridge converter based on the control voltage value.