Gleichrichterschaltung für ein Rfid-Etikett

Details

Veröffentlichungs-Nr.

EP4764944

Anmeldetag

20. Dezember 2024

Veröffentlichung

24. Juni 2026

Rechtsraum

EP

IPC

G06K19/07

Abstract

In one aspect the present invention concerns a rectifier circuit (10) for a passive RFID circuit (1), the rectifier circuit (10) comprising:- at least a first rectifier stage (11) comprising a first stage input (14) connectable to a first antenna port (6) and comprising a second stage input (15) connectable to a second antenna port (7),- a first rectifying unit (12) connected to the first stage input (14) and connected to a first stage output (16),- a second rectifying unit (18) connected to the second stage input (15) and connected to a second stage output (17),- a trimming capacitor arrangement (30) connected to the first stage input (14) and connected to the second stage input (15), wherein the trimming capacitor arrangement (30) is electronically switchable to at least a first capacitance and to a second capacitance, and- a first auxiliary rectifier stage (71) connected to the first antenna port (6), the second antenna port (7), the first stage output (16) and to the second stage output (17) and coupled to the trimming capacitor arrangement (30) to switch the trimming capacitor arrangement (30) into a predefined auxiliary configuration.

Anmelder

Firma

EM Microelectronic-Marin SA

Land

🇨🇭 Schweiz

Fachgebiete