公开(公告)号：US20230216309A1

公开(公告)日：2023-07-06

申请号：US18084830

申请日：2022-12-20

Applicant: Enphase Energy, Inc.

Inventor： MICHAEL J. HARRISON

IPC: H02J3/38 ,  H02M3/335 ,  H02J3/46

CPC classification number: H02J3/381 ,  H02M3/33584 ,  H02J3/46 ,  H02J2300/24

Abstract: Methods and apparatus which use a microinverter comprising integrated neutral forming function for off-grid facilities are provided herein. For example, a microinverter configured for use with an AC storage system comprises switching circuitry connected at an AC output of the microinverter, a three-line connector connected at the AC output and comprising a neutral line connected between two lines configured to connect to at least one of a single phase grid system or a split phase grid system, wherein the neutral line is connected to the microinverter at a point that maintains a mid-way voltage between the two lines voltage.

公开(公告)号：US20230077476A1

公开(公告)日：2023-03-16

申请号：US17939315

申请日：2022-09-07

Applicant: Enphase Energy, Inc.

Inventor： MICHAEL J. HARRISON

IPC: H02M7/48 ,  H02M1/00 ,  H02M7/5387

Abstract: A resonant parallel triple active bridge converter comprising a DC port configured to receive DC energy, an AC port configured to produce AC energy, and an AC line cycle energy storage port, coupled to both the DC port and the AC port, where the AC line cycle energy storage port comprises an energy storage device for storing energy during an energy conversion process.

公开(公告)号：US20230215626A1

公开(公告)日：2023-07-06

申请号：US18119979

申请日：2023-03-10

Applicant: Enphase Energy, Inc.

Inventor： MICHAEL J. HARRISON

IPC: H01F41/098 ,  C25D7/06 ,  C25D3/40 ,  C25D1/00 ,  C25D17/00

CPC classification number: H01F41/098 ,  C25D7/0614 ,  C25D3/40 ,  C25D1/003 ,  C25D17/00

Abstract: Methods and apparatus for producing helix windings used for a transformer are provided. For example, apparatus comprise an electrically conductive mandrel comprising an elongated body, a head comprising an eyelet detail, and a winding structure disposed along the elongated body.

公开(公告)号：US20220416784A1

公开(公告)日：2022-12-29

申请号：US17846882

申请日：2022-06-22

Applicant: Enphase Energy, Inc.

Inventor： MICHAEL J. HARRISON ,  Christiaan Johannes van Antwerpen ,  Patrick Lyle Chapman

IPC: H03K17/687 ,  H01L29/20 ,  H01L29/778

Abstract: Apparatus for performing substrate voltage management is provided herein and comprises an active substrate voltage management circuit configured to be coupled to a substrate of a bidirectional gallium nitride high electron mobility transistor comprising a first source and a second source. The active substrate voltage management circuit comprises a first circuit that is connected to the first source and a second circuit that is connected to a second source such that when the bidirectional gallium nitride high electron mobility transistor is operational one of the first circuit or the second circuit connects one of the first source to the substrate or the second source to the substrate, respectively, to control a bias voltage applied to the substrate.