LIGHTING DEVICE AND ILLUMINATION EQUIPMENT

LIGHTING DEVICE AND ILLUMINATION EQUIPMENT

To obtain a lighting device and illumination equipment that can suppress the flicker of a light source.SOLUTION: A lighting device according to the present disclosure comprises a lighting circuit that includes a switching element and lights a light source by turning the switching element on and off,...

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Hauptverfasser: SUZUKI HIROSHI, HIRAMOTO YUYA
Format: Patent
Sprache:eng ; jpn
Schlagworte:
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator SUZUKI HIROSHI
HIRAMOTO YUYA
description To obtain a lighting device and illumination equipment that can suppress the flicker of a light source.SOLUTION: A lighting device according to the present disclosure comprises a lighting circuit that includes a switching element and lights a light source by turning the switching element on and off, a detection circuit that detects the output power of the lighting circuit, and a control unit that controls the on-width of the switching element such that the output power matches a predetermined target value according to a detection value of the detection circuit, and fixes the on-width to a fixed value which is the immediately preceding value regardless of the detection value when the output power matches the target value.SELECTED DRAWING: Figure 2 【課題】光源のちらつきを抑制できる点灯装置および照明器具を得ることを目的とする。【解決手段】本開示に係る点灯装置は、スイッチング素子を有し、該スイッチング素子のオンオフにより光源を点灯させる点灯回路と、該点灯回路の出力電力を検出する検出回路と、該検出回路の検出値に応じて、該出力電力が予め定められた目標値と一致するように該スイッチング素子のオン幅を制御し、該出力電力と該目標値とが一致すると、該検出値に関わらず該オン幅を直前の値である固定値に固定する制御部と、を備える。【選択図】図２
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title LIGHTING DEVICE AND ILLUMINATION EQUIPMENT
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