Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/186254
Kind Code:
A1
Abstract:
A lighting device (10) is provided with: a lighting control circuit (11) that controls a lighting switching element (SCR1); and a power supply circuit (12) that supplies power to the lighting control circuit (11) using alternating current output (Vac) outputted from an alternating current power generator (ACG) driven by means of an internal combustion engine. The power supply circuit (12) has: a second rectifying element (D2) that rectifies the alternating current output (Vac); a first switching element (Q1), which has an output voltage from the second rectifying element (D2) supplied to one end, and an output voltage from the second rectifying element (D2) supplied to a control terminal via a first resistor (R1), and which supplies power from the other end; a first capacitive element (C1) that is connected to the other end of the first switching element (Q1); and a switching element control circuit (121) that reduces the voltage of the control terminal of the first switching element (Q1) to a fixed voltage in the cases where the voltage of the power supply is equal to or higher than the first voltage.
Inventors:
OSAKI SHINGO (JP)
Application Number:
PCT/JP2014/065129
Publication Date:
December 10, 2015
Filing Date:
June 06, 2014
Export Citation:
Assignee:
SHINDENGEN ELECTRIC MFG (JP)
International Classes:
F02P3/08; F02P1/08
Foreign References:
| JPS6210471A | 1987-01-19 | |||
| JPH0566269U | 1993-09-03 | |||
| JPH03164568A | 1991-07-16 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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