Switching circuit, corresponding device and method

A circuit, comprising:

• a switching circuit stage comprising first and second half bridges each comprising a high-side DMOS transistor and a low-side DMOS transistor, the first half bridge and the second half bridge each comprising respective first and second output nodes between their respective high-side DMOS transistor and their respective low-side DMOS transistor, the first and second output nodes configured for supplying an electrical load via respective filter networks coupled between the first and second output nodes and the load;
• control circuitry coupled to the switching circuit stage and configured to control switching sequences of the high-side DMOS transistors and the low-side DMOS transistors in the first half bridge and the second half bridge;
• wherein a first pair of DMOS transistors comprising the high-side DMOS transistor in one of the half bridges and the low-side DMOS transistor in the other of the half bridges is switched to a non-conductive state, and a second pair of transistors comprising the high-side DMOS transistor in the other of the half bridges and the low-side DMOS transistor in the one of the half bridges is switched to a conductive state;
• a current flow line between the first and second output nodes in the first half bridge and the second half bridge, the current flow line comprising an inductance having opposed terminals coupled to a first switch and a second switch, the first switch and the second switch being selectively switchable between a non-conductive state and at least one conductive state, and
• first and second capacitances coupled with the first and second output nodes of the first half bridge and the second half bridge;
• wherein the control circuitry is configured to:
• switch the first switch and the second switch to the at least one conductive state at intervals in said switching sequences between switching the first pair of DMOS transistors to a non-conductive state and switching the second pair of DMOS transistors to a conductive state;
• and
• provide control signals to switch at least one of said first switch and said second switch based on at least one comparison signal indicative of a delay among a first output signal at said first output node and a second output signal at said second output node.