| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp that operates with safety and with stability even when attached to an existing fluorescent lamp illuminating device.SOLUTION: Provided is an LED lamp that can be attached to a fluorescent lamp illuminating fixture. The LED lamp has: an LED power supply circuit that converts an AC input from the fluorescent lamp illuminating fixture into a DC, and outputs the DC; and an LED module that has at least one LED element, and lightens the LED element by the DC input supplied from the LED power supply circuit. In addition, the LED power supply circuit has a pseudo heater circuit that gives an impedance as well as a general LED power supply circuit. This pseudo heater circuit is a resonance capacitor provided at the fluorescent lamp illuminating fixture (an inverter) side, and supplies an AC output to a rectification circuit without functioning a resonance capacitor for generating an initial voltage, and feeds the AC output back to the fluorescent lamp illuminating fixture (the inverter). |
