Stromversorgungsschaltung, Leiterplatte, Batterieverwaltungssystem und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4773494

Anmeldetag

31. Juli 2024

Veröffentlichung

19. Juni 2025

Rechtsraum

EP

IPC

H02M1/44

Abstract

The present application discloses a power supply circuit, a circuit board, a battery management system, and an electric device. The power supply circuit comprises a driver, a transformer, a rectifier, and a filtering module; the driver comprises a driving pin and a power supply input pin; the transformer comprises a primary winding and a secondary winding; the driving pin and the power supply input pin are connected to different taps of the primary winding; the secondary winding is connected to an input end of the rectifier, and an output end of the rectifier is connected to a power supply output end of the power supply circuit; the filtering module comprises at least one of a driving filtering module, an input filtering module, an output filtering module, and a primary and secondary filtering module; the driving filtering module is connected to the driving pin; the input filtering module is connected to the power supply input pin and the primary winding; the output filtering module is connected to the power supply output end; and the primary and secondary filtering module is connected to a grounding end connected to the driver and a grounding end connected to the secondary winding. The embodiments of the present application can improve the EMC performance of the power supply circuit.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China