公开(公告)号：US12283893B2

公开(公告)日：2025-04-22

申请号：US18085161

申请日：2022-12-20

Applicant: Monolithic Power Systems, Inc.

Inventor： Dianbo Fu

IPC: H02M3/335

Abstract: A novel converter circuit topology is disclosed. The converter circuit has a bridge circuit, a transformer, and a half-bridge current-doubler rectifier. An input end of the bridge circuit is connected to an input voltage node of the converter circuit. A reference end of the bridge circuit is connected to an output voltage node of the converter circuit. Opposing ends of a primary winding of the transformer are connected to bridge nodes of the bridge circuit. A secondary winding of the transformer serves as current-doubler inductors of the half-bridge current-doubler rectifier. A tap of the secondary winding is connected to the reference end of the bridge circuit.

公开(公告)号：US11799383B2

公开(公告)日：2023-10-24

申请号：US17671814

申请日：2022-02-15

Applicant: MONOLITHIC POWER SYSTEMS, INC.

Inventor： Dianbo Fu ,  Jinghai Zhou ,  Daocheng Huang ,  Junjie Feng

IPC: H02M3/335 ,  H02M1/00 ,  H02M3/00

CPC classification number: H02M3/33573 ,  H02M1/0095 ,  H02M3/33584 ,  H02M3/01

Abstract: A hybrid DC-DC converter includes a converter circuit, a bridge circuit with a bridge path that includes a winding of a transformer, and another bridge circuit with a bridge path that includes another winding of the transformer. Current through the bridge path of the other bridge circuit flows through the converter circuit in one direction and bypasses the converter circuit in the other direction. The converter circuit can operate in buck, boost, or buck-boost mode.

公开(公告)号：US11451145B2

公开(公告)日：2022-09-20

申请号：US17141528

申请日：2021-01-05

Applicant: MONOLITHIC POWER SYSTEMS, INC.

Inventor： Hang Shao ,  Dianbo Fu ,  Daocheng Huang ,  Tao Zhao

IPC: H02M3/158 ,  H02M3/156

Abstract: A trans-inductor voltage regulator (TLVR) circuit has multiple phases and a regulator block for each phase. Each regulator block has a winding of a transformer as an output inductor. The other windings of the transformers are connected in series with a nonlinear compensation inductor. The compensation inductor has a large inductance when the compensation inductor current is responsive to a steady state load current and has a small inductance when the compensation inductor current is responsive to a transient load current.

公开(公告)号：US11303204B1

公开(公告)日：2022-04-12

申请号：US17143508

申请日：2021-01-07

Applicant: Monolithic Power Systems, Inc.

Inventor： Tao Zhao ,  Hang Shao ,  Dianbo Fu ,  Daocheng Huang

IPC: H02M3/158 ,  H02M3/04 ,  H02M1/00 ,  H02M1/14

Abstract: A trans-inductor voltage regulator (TLVR) circuit has multiple phases and a switching circuit for each phase. Each switching circuit has a winding of a transformer as an output inductor. The other windings of the transformers are connected in series with a nonlinear compensation inductor. An on-time period of each switching circuit is reduced when a load transient condition occurs or when a load current starts to be stable after the load transient condition.

公开(公告)号：US11705817B2

公开(公告)日：2023-07-18

申请号：US17492271

申请日：2021-10-01

Applicant: Monolithic Power Systems, Inc.

Inventor： Dianbo Fu ,  Daocheng Huang ,  Junjie Feng

IPC: H02M3/335

CPC classification number: H02M3/33573 ,  H02M3/33576

Abstract: An LLC resonant converter including a transformer, a switching full-bridge circuit, a resonant circuit, and a bridge rectifier. The switching full-bridge circuit has a first pair of switches and a second pair of switches, with the first pair of switches being connected between a DC input voltage and a second end of a secondary winding of the transformer, the second pair of switches being connected between a DC input voltage and a first end of the secondary winding of the transformer.