LED DRIVE CIRCUIT, LED ILLUMINATION COMPONENT, LED ILLUMINATION DEVICE, AND LED ILLUMINATION SYSTEM

摘要

PURPOSE: An LED drive circuit, an LED illumination component, an LED illumination device and an LED illumination system are provided to improve power efficiency by forming a power loss suppression unit. CONSTITUTION: A current removing unit removes current from a current supply line which supplies an LED drive current to an LED module(3). The current removing unit reduces the removing amount of the current based on the input current of an LED drive circuit(100). The current removing unit includes a bypass line, an active element and a control unit. The active element is arranged on the bypass line. The control unit controls the active element.