Series stacked phase dc-dc converters with stable operation
AssigneeEmpower Semiconductor, Inc.
InventorsRichard Nicholson, Xiaogang Feng
Life of this patent
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Abstract
A power converter circuit is disclosed. In one aspect, the power converter circuit includes a first top buck converter circuit coupled in parallel to a second top buck converter circuit at a first connection node and at a second connection node, and a bottom buck converter circuit coupled in series to each of the first and second top buck converter circuits at the second connection node, a power input terminal coupled to the first and second top buck converter circuits, and a power output terminal coupled to the bottom buck converter circuit and to the first connection node.
Claims20
A circuit comprising:
- a first top buck converter circuit coupled in parallel to a second top buck converter circuit at a first connection node and at a second connection node;
- and
- a bottom buck converter circuit coupled in series to each of the first and second top buck converter circuits at the second connection node;
- a power input terminal coupled to the first and second top buck converter circuits;
- and
- a power output terminal coupled to the bottom buck converter circuit and to the first connection node.
A circuit comprising:
- a first top buck converter circuit coupled to an input terminal;
- a second top buck converter circuit coupled to the input terminal, the first top buck converter circuit coupled to the second top buck converter circuit at a first and second connection nodes;
- a bottom buck converter circuit coupled to the first and second top buck converter circuits at the second connection node;
- and
- an output terminal coupled to the bottom buck converter circuit and to the first connection node.
Dependencies are inferred from the claim text.