Abstract: An integrated circuit can include: a bottom structure; at least one GaN transistor die, where each GaN transistor die includes at least one power switching device; a silicon die including a control circuit for controlling the power switching device; and where the GaN transistor die and the silicon die are arranged on the bottom structure, and an electrical connection between the control circuit and the power switching device includes corresponding patterned metal structures arranged in the bottom structure.

Abstract: A switched capacitor converter can include a plurality of input switch groups connected in series between an input terminal and an output terminal, where each input switch group can include two power switches connected in series. The switched capacitor converter can also include a plurality of output switch groups, where each output switch group can include two power switches connected in series. The switched capacitor converter can also include a plurality of capacitors, first terminals of which are respectively connected to the common nodes of every two series-connected power switches in the plurality of input switch groups, and second terminals of which are respectively connected to intermediate nodes of each output switch group. The switched capacitor converter can also include a plurality of inductors, where a first terminal of each output switch group can connect to a first terminal of a corresponding inductor.

Abstract: A power conversion module can include: an i-th level structure comprising 2i-1 basic units, a second terminal of each basic unit in each level structure respectively connected to first terminals of two basic units in a next level structure, where a first terminal of a first basic unit in a first-level structure is used as a first terminal of the power conversion module; an N-th level structure comprising 2N-1 balance units, where second terminals of each balance unit are connected as a second terminal of the power conversion module, and second terminals of each basic unit in an (N?1)th level structure are respectively connected to first terminals of two balance units in the N-th level structure; and where each basic unit comprises a switched capacitor circuit, N is a positive integer greater than or equal to 2, i is a positive integer, and 1?i?N?1.

Abstract: A power converter can include: positive and negative input terminals configured to receive an input voltage; positive and negative output terminals configured to generate an output voltage; first and second power switches sequentially coupled in series between the positive input terminal and a first node; third and fourth power switches sequentially coupled in series between a second node and the negative input terminal, where there is no physical connection between the first node and the second node; a first energy storage element coupled between a common terminal of the first and second power switches and a common terminal of the third and fourth power switches; a first multi-level power conversion circuit coupled between the first node and the positive output terminal; and a second multi-level power conversion circuit coupled between the first node and the positive output terminal.

Abstract: A power conversion module can include: an i-th level structure comprising 2i-1 basic units, a second terminal of each basic unit in each level structure respectively connected to first terminals of two basic units in a next level structure, where a first terminal of a first basic unit in a first-level structure is used as a first terminal of the power conversion module; an N-th level structure comprising 2N-1 balance units, where second terminals of each balance unit are connected as a second terminal of the power conversion module, and second terminals of each basic unit in an (N?1)th level structure are respectively connected to first terminals of two balance units in the N-th level structure; and where each basic unit comprises a switched capacitor circuit, N is a positive integer greater than or equal to 2, i is a positive integer, and 1?i?N?1.

Abstract: A power converter can include a positive input terminal and a negative input terminal, configured to receive an input voltage; a positive output terminal and a negative output terminal, configured to generate an output voltage; a first power switch and a second power switch, sequentially coupled in series between the positive input terminal and a first node; a third power switch and a fourth power switch, sequentially coupled in series between a second node and the negative input terminal; a first energy storage element coupled between a common terminal of the first power switch and the second power switch and a common terminal of the third power switch and the fourth power switch; a first switched capacitor circuit coupled between the first node and the positive output terminal; and a second switched capacitor circuit coupled between the second node and the positive output terminal.

Abstract: A switched capacitor converter can include a plurality of input switch groups connected in series between an input terminal and an output terminal, where each input switch group can include two power switches connected in series. The switched capacitor converter can also include a plurality of output switch groups, where each output switch group can include two power switches connected in series. The switched capacitor converter can also include a plurality of capacitors, first terminals of which are respectively connected to the common nodes of every two series-connected power switches in the plurality of input switch groups, and second terminals of which are respectively connected to intermediate nodes of each output switch group. The switched capacitor converter can also include a plurality of inductors, where a first terminal of each output switch group can connect to a first terminal of a corresponding inductor.

Abstract: A power converter can include: positive and negative input terminals configured to receive an input voltage; positive and negative output terminals configured to generate an output voltage; first and second power switches sequentially coupled in series between the positive input terminal and a first node; third and fourth power switches sequentially coupled in series between a second node and the negative input terminal, where there is no physical connection between the first node and the second node; a first energy storage element coupled between a common terminal of the first and second power switches and a common terminal of the third and fourth power switches; a first multi-level power conversion circuit coupled between the first node and the positive output terminal; and a second multi-level power conversion circuit coupled between the first node and the positive output terminal.