Backup Box and Driving Method Thereof, and Photovoltaic System

ChangeBridge: EPO Bulletin - Power Supply (H02J)

Published March 25th, 2026

Detected April 2nd, 2026

Summary

EPO published patent application EP4579998A2 for a backup box and driving method for photovoltaic systems, filed by Huawei Digital Power Technologies Co., Ltd. The application covers power backup technology for solar energy systems under IPC classifications H02J 9/06 and H02J 3/38. No compliance obligations or deadlines are associated with this patent publication.

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What changed

EPO published patent application EP4579998A2 for a backup box and driving method for photovoltaic systems, filed by Huawei Digital Power Technologies Co., Ltd. The invention covers power backup solutions for solar energy installations, classified under IPC H02J 9/06 (emergency power supply systems) and H02J 3/38 (arrangements for interconverting electric energy from plural sources). The designated states cover all EU member states plus EFTA and other European countries.

This publication is informational and does not create compliance obligations. Companies developing photovoltaic systems or power backup solutions should review this patent to assess potential intellectual property considerations for their product lines. No licensing requirements or deadlines are established by this publication.

Source document (simplified)

← EPO Patent Bulletin

BACKUP BOX AND DRIVING METHOD THEREOF, AND PHOTOVOLTAIC SYSTEM

Publication EP4579998A2 Kind: A2 Mar 25, 2026

Applicants

Huawei Digital Power Technologies Co., Ltd.

Inventors

WANG, Hang, CHEN, Wei, FANG, Gang, GUO, Yunhui, XING, Fanfan

IPC Classifications

H02J 9/06 20060101AFI20250709BHEP H02J 3/38 20060101ALI20250709BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

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