LIGHTING DEVICE AND LUMINAIRE USING THE SAME

• Main Authors: HIMEDA MASATO, ASANO HIROYUKI, YAMAMOTO MASASHI
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a lighting device that can reduce a noise terminal voltage while realizing high-density mounting, and a luminaire using the same.SOLUTION: A first inductor 11 and a second inductor 12 are arranged in alignment with each other on the surface of a substrate 6 such that a magnetic flux generated by first current flowing through the first inductor 11 and a magnetic flux generated by second current flowing through the second inductor 12 interfere with each other. With respect to the first inductor 11 and the second inductor 12, the winding directions of windings 112, 122 are set such that the magnetic flux based on the first inductor 11 and the magnetic flux based on the second inductor 12 offset each other. A switching element 13 is mounted between the first inductor 11 and the second inductor 12 in an arrangement direction as a direction along which the first inductor 11 and the second inductor 12 are arranged on the surface of the substrate 6.SELECTED DRAWING: Figure 3 【課題】高密度実装を実現しつつ雑音端子電圧を低減させた点灯装置及びそれを用いた照明器具を提供する。【解決手段】第１インダクタ１１及び第２インダクタ１２は、第１電流が第１インダクタ１１に流れることにより発生する磁束と第２電流が第２インダクタ１２に流れることにより発生する磁束とが互いに干渉するように基板６の表面に並べて実装されている。また、第１インダクタ１１及び第２インダクタ１２は、第１インダクタ１１による磁束と第２インダクタ１２による磁束とが互いに打ち消されるように巻線１１２，１２２の巻き方向がそれぞれ設定されている。そして、スイッチング素子１３は、基板６の表面において第１インダクタ１１及び第２インダクタ１２が並ぶ方向である配列方向における第１インダクタ１１と第２インダクタ１２との間に実装されている。【選択図】図３