Verfahren zur Steuerung einer Lampenschaltung auf der Basis von Temperatur und Verstärktem Strom und Lampenschaltung damit

Details

Veröffentlichungs-Nr.

EP4132227

Aktenzeichen

EP22186244

Anmeldetag

21. Juli 2022

Veröffentlichung

21. Februar 2024

Erteilung

21. Februar 2024

Rechtsraum

EP

IPC

H05B47/28H05B45/56

Abstract

A lamp circuit including a light emitting circuit and a light emission control circuit that controls the light emitting circuit. The light emitting circuit includes a thermistor and a light emitting device, and the light emission control circuit comprised a constant current circuit, dimming control circuit, voltage divider having a first resistor and a second resistor, and a current amplification circuit. The current amplification circuit amplifies a current of the thermistor, and the voltage divider divides a first voltage to a first node between the first resistor and the second resistor based on the amplified current. The dimming control circuit controls an output current of the constant current circuit based on the first voltage, and the constant current circuit outputs a current to the light emitting device based on the control of the dimming control circuit.

Anmelder

Firma

Hyundai Mobis Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete