Adaptive dead-time control for switching circuitry of a dc converter

A switching converter, comprising:

• switching circuitry configured to receive a first direct current (DC) voltage, the switching circuitry including a primary switch and a secondary switch connected in a half-bridge configuration;
• a first output filter connected to the switching circuitry, wherein the switching circuitry is configured to open and close the primary switch and the secondary switch such that the first output filter generates a second DC voltage from the first DC voltage;
• a high-pass filter coupled to the switching circuitry or the first output filter to generate a feedback signal, wherein a switch transient event is provided in the feedback signal in response to the opening of the primary switch;
• a trigger circuit configured to receive the feedback signal from the high-pass filter and configured to switch a trigger signal from a first signal state to a second signal state in response to a switch transient event, wherein the switching circuitry is configured to close the secondary switch in response to the trigger signal transitioning from the first signal state to the second signal state;
• and
• wherein no isolators are provided between the trigger circuit and the switching circuitry.

A method of operating a switch converter, comprising:

• generating a direct current (DC) voltage using an output filter and switching circuitry, the switching circuitry comprising a primary switch and a secondary switch;
• opening the primary switch in response to an enabling signal being in an enabling state;
• receiving a feedback signal from the switching circuitry or the output filter;
• detecting a switching transient event in the feedback signal in response to the primary switch being opened while the secondary switch remains open;
• and
• closing the secondary switch in response to the switching transient event and the enabling signal being in the enabling state.