System and method to enhance a feedback loop of a power converter

An apparatus for determining a value of a feedback parameter of a feedback loop of a power converter, comprising:

• a processor;
• and
• a memory including computer program code, wherein said processor, said memory, and said computer program code are collectively operable to:
• normalize an open-loop performance characteristic and a closed-loop performance characteristic of said feedback loop to a common scale to provide a normalized open-loop performance characteristic and a normalized closed-loop performance characteristic,
• combine said normalized open-loop performance characteristic with said normalized closed-loop performance characteristic to provide a combined normalized performance characteristic, and
• find a value of said feedback parameter that produces an extremum of said combined normalized performance characteristic.

A power converter including a feedback loop, comprising:

• a power train configured to convert an input voltage to an output voltage;
• and
• a controller configured to:
• normalize an open-loop performance characteristic and a closed-loop performance characteristic of said feedback loop to a common scale to provide a normalized open-loop performance characteristic and a normalized closed-loop performance characteristic,
• combine said normalized open-loop performance characteristic with said normalized closed-loop performance characteristic to provide a combined normalized performance characteristic, and
• find a value of said feedback parameter that produces an extremum of said combined normalized performance characteristic.

A computer program product comprising a program code stored in a tangible form in a computer readable medium, operable to cause a controller comprising a processor and a memory to:

• normalize an open-loop performance characteristic and a closed-loop performance characteristic of a feedback loop of a power converter to a common scale to provide a normalized open-loop performance characteristic and a normalized closed-loop performance characteristic;
• combine said normalized open-loop performance characteristic with said normalized closed-loop performance characteristic to provide a combined normalized performance characteristic;
• and
• find a value of said feedback parameter that produces an extremum of said combined normalized performance characteristic.