Title:
LIGHTING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2024/080187
Kind Code:
A1
Abstract:
This lighting circuit is to be applied to a vehicle light that includes a plurality of light sources, and comprises: a voltage divider circuit that divides a power supply voltage applied to a power supply line into a plurality of different voltages; a timer circuit that includes a first resistor to which the power supply voltage is applied via the power supply line, and a first capacitor connected to the first resistor; a control circuit that sequentially turns ON the plurality of light sources on the basis of the plurality of voltages of the voltage divider circuit and the voltage of the first capacitor; and a first discharge circuit that, when the power supply voltage is applied to the power supply line, discharges the first capacitor during a first period.
Inventors:
KITAGAWA YUTA (JP)
YAMADA YUKIYA (JP)
OTA SHINJI (JP)
YAMADA YUKIYA (JP)
OTA SHINJI (JP)
Application Number:
PCT/JP2023/036039
Publication Date:
April 18, 2024
Filing Date:
October 03, 2023
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
H05B47/165; B60Q1/34; B60Q1/38; H05B47/105; H05B47/16; H05B47/20
Attorney, Agent or Firm:
ISSHIKI PATENT & TRADEMARK FIRM (JP)
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