Lichtquellenbeleuchtungsschaltung und Lampensystem für Fahrzeug

Details

Veröffentlichungs-Nr.

EP2416626

Aktenzeichen

EP11176694

Anmeldetag

5. August 2011

Veröffentlichung

10. Oktober 2018

Erteilung

10. Oktober 2018

Rechtsraum

EP

IPC

H05B33/08

Abstract

A lighting circuit includes: a countercurrent prevention unit including a first control terminal and a second control terminal, the countercurrent prevention unit transmitting a first current or a second current; and a current controller including: a common terminal connected to the first control terminal and the second control terminal; and a switching terminal connected to the first control terminal, the current controller providing a first driving current or a second driving current from the common terminal to the light source. The countercurrent prevention unit further includes: a first rectifier, wherein voltage at the first control terminal is provided to the switching terminal through the first rectifier; a first P-FET provided between the first control terminal and the common terminal; a second P-FET provided between the second control terminal and the common terminal; and a second rectifier provided between the second P-PET and the common terminal.

Anmelder

Firma

Koito Manufacturing Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete