Patent ID: 9627975
Date: 2017-04-18
CPC Classifications: H02M

Claim:
1. A modulated power supply system comprising: a switching converter configured to provide a switching voltage at an output terminal for supplying modulated power to a load; and a controller configured to perform steps to: determine if the modulated power supply system is operating in an average power tracking (APT) mode; operate the modulated power supply system in a buck mode if the APT mode is determined to be enabled; monitor a switching output voltage of the modulated power supply system to detect a signal indicative of a first predetermined condition corresponding to a drop below a regulated voltage level of the switching output voltage; automatically transition from the buck mode to a boost mode if the first predetermined condition exists for a predetermined time; monitor the switching output voltage of the modulated power supply system to detect a signal indicative of a second predetermined condition corresponding to a rise above the regulated voltage level of the switching output voltage; automatically transition from the boost mode to the buck mode if the second predetermined condition exists for the predetermined period; and repeat the steps until the controller determines that the APT mode is no longer enabled.