Auto-synchronized DC/DC converter and method of operating same

摘要

A DC/DC converter comprising a buck stage that includes a buck switch, a push-pull stage that includes push-pull switches, and a controller to control the switching phases of the buck and push-pull switches. The turn-on phases of these buck and push-pull switches are automatically and continuously adjusted to an optimal value at each occurrence of a synchronization pulse produced at a fixed frequency by an auto-synchronization circuit. <IMAGE>