会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明申请
    • Light-emitting element driving circuit
    • 发光元件驱动电路
    • US20050218835A1
    • 2005-10-06
    • US10873302
    • 2004-06-23
    • Hiroshi SuzunagaAtsushi NamaiHirofumi Kobayashi
    • Hiroshi SuzunagaAtsushi NamaiHirofumi Kobayashi
    • H01L33/00G05F1/00H05B33/08H05B37/00
    • H05B33/0803H05B33/0818Y02B20/347
    • A light-emitting element driving circuit comprises a current supplier serially connected to a light-emitting element and operative to supply a current to the light-emitting element; and a switching unit operative to control switching between the states of the current supplied to the light-emitting element from the current supplier. The switching unit includes a current path consisting of a diode and a semiconductor switching element. The diode is connected in parallel with the light-emitting element and in a forward direction directed from an anode to a cathode of the light-emitting element. The semiconductor switching element is connected serially to the diode and operative to switch between the states of conductive and non-conductive based on a control signal. A voltage drop across the current path when the semiconductor switching element is made conductive is determined lower than a forward voltage of the light-emitting element when it emits light.
    • 发光元件驱动电路包括串联连接到发光元件的电流供给器,用于向发光元件供给电流; 以及切换单元,用于控制从当前供应商提供给发光元件的电流的状态之间的切换。 开关单元包括由二极管和半导体开关元件组成的电流路径。 二极管与发光元件并联并且在从发光元件的阳极指向的正向方向上连接。 半导体开关元件串联连接到二极管并且可操作以基于控制信号在导电状态和非导通状态之间切换。 当半导体开关元件导通时,电流路径上的电压降被确定为低于发光元件发光时的正向电压。