| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED driver module for which the space is saved and which is made small-sized and lightweight, and an LED bulb employing the same.SOLUTION: An LED driver module 10 is provided which comprises a protection circuit 11 which protects post-stage circuit parts from an input voltage, a rectifier circuit 12 which rectifies the input voltage inputted via the protection circuit 11, a filter circuit 13 which cancels a noise component from the input voltage rectified by the rectifier circuit 12, a voltage comparator 14 which compares the input voltage from which the noise component has been canceled by the filter circuit 13 with a threshold value, and a switch 15 which switches LED block parts B1, B2 to be power feeding targets in an LED module 20 that is a load, in accordance with a comparison result of the voltage comparator 14, and an LED bulb 1 employing the same is also provided. |
