| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp which can be attached not only to glow start, rapid start and inverter lighting fixtures but also to a lighting fixture having a socket connected directly with a commercial power supply, and can save power in any lighting fixture.SOLUTION: An LED lamp 10 includes a pair of terminal pins 11, 12 being attached to a pair of sockets of a lighting fixture for fluorescent lamp, a lighting control section 14 for outputting a drive current on the basis of the AC currents from the terminal pins 11, 12, and an LED lighting section 15 being lighted by the drive current. The lighting control section 14 includes rectification sections 141, 142 for rectifying the AC currents from the terminal pins 11, 12, and a current source 144 outputting a drive current on the basis of the pulsation currents from the rectification sections 141, 142. Between the rectification sections 141, 142, resistors are provided, while being connected in parallel with the current source 144, as load sections 161, 162 for consuming a surplus current from the lighting fixture for fluorescent lamp, larger than the current consumed by the LED lighting section 15. |
