Fish & Richardson P.C.
LED power supply device
An LED power supply device disclosed in the present specification includes a DC dimmer circuit that performs dimming control of an LED such that the higher a reference voltage variably controlled according to a dimmer signal is, the smaller a current flowing in the LED is. This configuration makes it possible to achieve fine dimming control.
Rohm Co., Ltd.
H H H
H05B H05B H05B
inventional inventional inventional
Kotaro Akinobu
Shibata Sawada