Rf-Etikett-Schaltung

Details

Veröffentlichungs-Nr.

EP3457330

Aktenzeichen

EP18189222

Anmeldetag

16. August 2018

Veröffentlichung

18. November 2020

Erteilung

18. November 2020

Rechtsraum

EP

IPC

G06K19/07// H03H7/38H03H7/40

Abstract

An RF tag circuit including a power storage unit is provided, in which an increase in time required for a voltage change occurring when an impedance is adjusted is reduced. The RF tag circuit is connected to an antenna and a load. The RF tag circuit includes a rectification circuit, a matching circuit, a power storage unit, and a control unit. The rectification circuit rectifies a radio wave received by the antenna and supplies DC power. The matching circuit, of which an impedance is changeable, is interposed between the antenna and the rectification circuit. The power storage unit stores DC power input from the rectification circuit and supplies the stored DC power to the load. The control unit disconnects the power storage unit from the RF tag circuit and adjusts the impedance of the matching circuit such that the amount of the power supplied by the rectification circuit increases.

Anmelder

Firma

OMRON CORPORATION

Land

🇯🇵 Japan

Fachgebiete