Title:
ELECTRIC POWER UNIT, LIGHTING FIXTURE, AND VEHICLE
Document Type and Number:
Japanese Patent JP2018170136
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electric power unit which allows for compaction of a second constant voltage circuit, and to provide a lighting fixture and a vehicle using the same.SOLUTION: In an electric power unit 1, a first output terminal T12 and a second output terminal T22 are connected electrically, and a first common terminal T13 and a second common terminal T23 are connected electrically. In steady state, a second constant voltage circuit 12 performs constant voltage of a second voltage V2, and supplies current consumption Id of a motor 41. In overload state, the second constant voltage circuit 12 decreases the second voltage V2 compared with that in steady state, and a first constant voltage circuit 11 supplies an undercurrent Is, i.e., the difference of the current consumption Id of the motor 41 and the maximum output current value of the second constant voltage circuit 12.SELECTED DRAWING: Figure 1
Inventors:
OHORI TAKAHIRO
FUKUI TAKAHIRO
MURAKAMI MASANOBU
FUKUI TAKAHIRO
MURAKAMI MASANOBU
Application Number:
JP2017065913A
Publication Date:
November 01, 2018
Filing Date:
March 29, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H05B37/02; H02M3/00; H05B44/00
Attorney, Agent or Firm:
Patent business corporation Hokuto patent office