Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VEHICULAR LAMP DRIVE DEVICE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/187325
Kind Code:
A1
Abstract:
This vehicular lamp drive device drives a vehicular LED lamp by controlling the flow of alternating current output from the coil of a power-generator, which generates power via the rotation of an engine. This vehicular lamp drive device comprises: a first supply path connected at a mid-section of the coil, whereby a negative-side current output from the coil is supplied to a first load including at least the LED lamp; a second supply path connected at one end of the coil, whereby the negative-side current output from the coil is supplied to a second load that is different from the first load; and a third supply path connected at the one end of the coil, whereby a positive-side current output from the coil is supplied to a third load that is different from the first and second loads. In addition, this vehicular lamp drive device is equipped with a lighting control unit controlling the timing of the flow of electricity in the first supply path, and a load drive unit controlling the timing of the flow of electricity in the second supply path.

Inventors:
SAITO Kotaro (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
WATANABE Hitoshi (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
ITABASHI Gaku (2681 Hirosawa-cho 1-chome, Kiryu-sh, Gunma 55, 〒3768555, JP)
Application Number:
JP2018/042806
Publication Date:
October 03, 2019
Filing Date:
November 20, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBA CORPORATION (2681, Hirosawa-cho 1-chome Kiryu-sh, Gunma 55, 〒3768555, JP)
International Classes:
H05B37/02; B60Q1/04
Domestic Patent References:
WO2017212837A12017-12-14
Foreign References:
JPH09191696A1997-07-22
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
Download PDF: