Adaptive delay control circuit for switched mode power supply

A switched mode power supply comprising:

• a first switch coupled to an input power source;
• a second switch coupled to ground;
• an output filter coupled to a phase node defined between said first and second switches, the first and second switches being responsive to a pulse width modulated signal to thereby regulate power provided to the output filter;
• and
• a feedback loop controller adapted to adjust operation of said first and second switches in response to changed operating conditions, said controller comprising at least one delay control circuit adapted to delay delivery of said pulse width modulated signal to at least one of said first and second switches to preclude simultaneous conduction of said first and second switches and minimize dead time between state transitions of said first and second switches, said delay control circuit detecting a phase difference between state transitions of said first and second switches and providing a delay in accordance with a magnitude of said phase difference.