| 摘要 |
An LED driving device capable of successively driving red LED, green LED, and blue LED with one driving IC is provided to facilitate PCB design of complex driving IC vicinity by reducing the number of component of a RGB driving circuit. An LED driving device comprises a LED part(100), a LED driving part(110), a switching part(120), and a control part(130). The LED part comprises a plurality of LED devices. The LED driving part drives the LED part, and supplies a current for driving the LED part. The switching part controls a driving power source supplied to the LED part by the LED driving part. The control part outputs a control signal to the switching part. A current supplied by the LED driving part is successively supplied to a plurality of LED parts according to on/off timing of the LED part. A plurality of LED parts comprises a first to a third LED part(100a, 100b, 100c). The first LED part includes a red LED device. The second LED part includes a green LED device. The third LED part includes a blue LED device. |
