Leistungsumwandlungsvorrichtung und Klimaanlage damit

Details

Veröffentlichungs-Nr.

EP4181390

Aktenzeichen

EP22194403

Anmeldetag

7. September 2022

Veröffentlichung

12. November 2025

Erteilung

12. November 2025

Rechtsraum

EP

IPC

H02P23/26H02M3/158H02M1/42H02M1/00H02M1/32

Abstract

The present disclosure discloses a power transforming apparatus capable of reducing a stress of a converter switch during a PFC operation, an operation method thereof, and an air conditioner including the same. To this end, the power transforming apparatus according to the present disclosure may determine the number of converters for performing a PFC operation based on a magnitude of input power and a speed of the motor. Furthermore, target converter channels are arbitrarily selected using a random function at an initial stage of a PFC operation so as not to add a stress to a switch device of any one converter. In addition, in order to disperse a stress to all switches, phases are individually controlled to perform switching operations while changing converters that match the number of converters for performing a PFC operation in a preset cycle, for example, whenever a zero-crossing is detected.

Anmelder

Firma

LG Electronics, Inc.

Land

🇰🇷 Südkorea

Fachgebiete