| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting fixture that allows generating a control power source at low loss with reduced components, an LED bulb, a lighting device, and a light-emitting module.SOLUTION: A lighting device 100 includes a converter circuit CNV1, a control integrated circuit IC1, and a wiring line 104. The converter circuit CNV1 includes a MOSFET Q1, has an input side connected to a commercial power supply AC, has an output side connected to light-emitting diodes LED1 to LED4, and generates a direct current to be supplied to the light-emitting diodes LED1 to LED 4 from the commercial power supply AC by switching of the MOSFET Q1. The control integrated circuit IC1 operates by receiving a control voltage more than or equal to a predetermined voltage by a control power-supply terminal Vcc1, and provides a control signal to a control terminal of the MOSFET Q1. The wiring line 104 electrically connecting a cathode of the light-emitting diode LED4 and the control power-supply terminal Vcc1. |
