Statuserkennungsschaltung einer elektrischen Verbindung

Details

Veröffentlichungs-Nr.

EP2626713

Aktenzeichen

EP13153865

Anmeldetag

4. Februar 2013

Veröffentlichung

25. Oktober 2017

Rechtsraum

EP

IPC

G01R31/04G01R1/20G01R1/30

Abstract

This load connection state detection circuit (1) includes a PNP type transistor (13) whose emitter is connected to a power source terminal (11), a NPN type transistor (24) where the emitter thereof is connected to the power source terminal (11), the collector thereof is connected to the base of the PNP type transistor (13), and the base thereof is connected to the collector of the PNP type transistor (13), and a diode (14) inserted between the collector of the PNP type transistor (13) and an external antenna load (16), wherein the diode (14) is configured to perform temperature compensation for the base voltage of the NPN type transistor (24) and prevent currents from flowing from the external antenna load (16) to the PNP type transistor (13) and the NPN type transistor (24).

Anmelder

Firma

Alps Electric Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete