Leistungsempfangsvorrichtung und Leistungsempfangssteuerungsverfahren

Details

Veröffentlichungs-Nr.

EP3544148

Aktenzeichen

EP19160566

Anmeldetag

4. März 2019

Veröffentlichung

5. Mai 2021

Erteilung

5. Mai 2021

Rechtsraum

EP

IPC

H02J50/10H02J7/00

Abstract

Provided are a power reception device and a power reception control method capable of suppressing the application of an excessive voltage even in the case where a time lag occurs before power transmission by a power transmission device is stopped after disconnection between the power reception device and a load. The power reception device (10) includes: a power reception coil (11) that receives power transmitted from the power transmission coil; a rectification circuit (12) that rectifies AC power received by the power reception coil (10); and a control circuit (14) that is connected between the rectification circuit (12) and a load (15) to which DC power outputted from the rectification circuit 12 is supplied, and controls that the DC current flowing through the load 15 to be constant or equal to or less than a predetermined value by the DC power. The control circuit (14) includes a switch (14a) that is connected between a positive electrode and a negative electrode of the load (15) and is switched from a non-conducting state to a conducting state when a voltage applied to the load (15) satisfies a predetermined condition, and a rectification element (14b) that is connected between the positive electrode or the negative electrode and the switch (14a) and prevents back-flow current.

Anmelder

Firma

Daihen Corporation

Land

🇯🇵 Japan

Fachgebiete