LED LIGHTING CIRCUIT, LED LAMP, LED LIGHTING DEVICE AND ENERGIZATION CONTROL CIRCUIT USED FOR THE SAME

PROBLEM TO BE SOLVED: To enable an LED lighting circuit for continuous lighting and an LED lighting control circuit for intermittent lighting to be configured as one circuit having a simple configuration, and enable simplification of wiring, miniaturization and reduction of the cost in an LED lighting circuit, an LED lamp, an LED lighting device and an energization control circuit for the same.SOLUTION: An energization control circuit (7A) is connected to an LED array series circuit including a first LED array (61) of first light emission color and a second LED array (62) of second light emission color different from the first light emission color which are connected in series between first and second input terminals (T5, T6) supplied with DC constant current. The energization control circuit (7A) includes, between the first and second input terminals, a switching element (70) connected to the second LED array in parallel, and a PWM control circuit (71) for turning on/off the switching element based on a predetermined frequency and a duty ratio.SELECTED DRAWING: Figure 1 【課題】連続点灯用のＬＥＤの点灯回路と間欠点灯用のＬＥＤの点灯回路とを簡素な構成で一回路とし、ＬＥＤ点灯回路、ＬＥＤランプ及びＬＥＤ点灯装置並びにこれらに用いる通電制御回路における配線の簡素化、小型化及び低コスト化を実現する。【解決手段】通電制御回路（７Ａ）は、直流定電流が供給される第１及び第２の入力端子（Ｔ５、Ｔ６）間に直列接続される第１の発光色の第１のＬＥＤアレイ（６１）と第１の発光色とは異なる第２の発光色の第２のＬＥＤアレイ（６２）からなるＬＥＤアレイ直列回路に接続される。通電制御回路（７Ａ）は、第１及び第２の入力端子間に、第２のＬＥＤアレイに並列接続されたスイッチング素子（７０）と、スイッチング素子を所定の周波数及びデューティ比に基づいてオン／オフするＰＷＭ制御回路（７１）とを備える。【選択図】 図１