公开(公告)号：US20150028749A1

公开(公告)日：2015-01-29

申请号：US14072961

申请日：2013-11-06

申请人： National Chi Nan University

发明人： Tai-Ping SUN ,  Hsiu-Li SHIEH ,  Chi-Neng HO

IPC分类号： H05B33/08

CPC分类号： H05B33/0851

摘要： A driving device is adapted to drive a light emitting device with stable optical power, and includes a feedback driving circuit, and a pulse wave generating circuit. The feedback driving circuit provides a driving current that is associated with a pulse-wave signal to the light emitting device, and outputs a feedback signal. The pulse wave generating circuit includes an analog-to-digital converter outputting a digital feedback signal according to the feedback signal, and a controller outputting the pulse-wave signal according to the digital feedback signal.

摘要翻译： 驱动装置适于驱动具有稳定的光功率的发光装置，并且包括反馈驱动电路和脉波发生电路。 反馈驱动电路提供与发光器件的脉冲波信号相关联的驱动电流，并输出反馈信号。 脉搏波发生电路包括根据反馈信号输出数字反馈信号的模数转换器，以及根据数字反馈信号输出脉波信号的控制器。

公开(公告)号：US20140197756A1

公开(公告)日：2014-07-17

申请号：US13936621

申请日：2013-07-08

申请人： National Chi Nan University

发明人： Tai-Ping SUN ,  Hsiu-Li SHIEH ,  Yung-Hsin LU

IPC分类号： H05B33/08

CPC分类号： H05B33/0866 ,  H05B33/0872

摘要： A light emitting system includes a light emitting device having a forward voltage, and an optical power control device. The optical power control device includes a control signal module and a current controller. The control signal module generates a control signal according to the forward voltage, and the current controller permits flow of a driving current through the light emitting device according to the control signal.

摘要翻译： 发光系统包括具有正向电压的发光装置和光功率控制装置。 光功率控制装置包括控制信号模块和电流控制器。 控制信号模块根据正向电压产生控制信号，电流控制器根据控制信号允许驱动电流通过发光器件。

公开(公告)号：US20140009072A1

公开(公告)日：2014-01-09

申请号：US13733484

申请日：2013-01-03

申请人： NATIONAL CHI NAN UNIVERSITY

发明人： Tai-Ping SUN ,  Hsiu-Li SHIEH ,  Kuo-Sheng CHAO

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0851

摘要： A light emitting system includes a light emitting device having a forward voltage dependent on an ambient parameter, and a power control device including a current generator, a compensation voltage module, and a control signal generator. The current generator converts a control signal into a driving current for provision to the light emitting device, and provides a feedback voltage. The compensation voltage module obtains a compensation voltage according to the forward voltage, the feedback voltage, and a reference voltage. The control signal generator generates the control signal according to the compensation voltage for provision to the current generator.

摘要翻译： 发光系统包括具有取决于环境参数的正向电压的发光器件，以及包括电流发生器，补偿电压模块和控制信号发生器的功率控制器件。 电流发生器将控制信号转换成用于提供给发光器件的驱动电流，并提供反馈电压。 补偿电压模块根据正向电压，反馈电压和参考电压获得补偿电压。 控制信号发生器根据用于提供给电流发生器的补偿电压产生控制信号。