-
1.发明申请LIGHTING APPARATUS WITH VARIABLE CURRENT SWITCHING FREQUENCY AND METHODS OF OPERATING SAME 有权具有可变电流切换频率的照明设备及其操作方法公开(公告)号：US20160057823A1
公开(公告)日：2016-02-25
申请号：US14465431
申请日：2014-08-21
Applicant: Cree, Inc.
Inventor： Daniel Pope , Xiuge Yang
CPC classification number: H05B33/0845 , H05B33/0818 , H05B37/0281 , Y02B20/347 , Y02B20/42
Abstract: An apparatus includes a current modulation circuit configured to modulate a current in at least one light-emitting device responsive to a pulse width modulated control signal and a control circuit configured to control a pulse width of the pulse width modulated control signal responsive to a first control input and to control a frequency of the pulse width modulated control signal responsive to a second control input. The first control input may include, for example, a current control input, and the second control input may include a light intensity control input, such as a dimming input. The control circuit may be configured to increase the frequency responsive to a change in the light intensity control input corresponding to a decrease in light intensity and to decrease the frequency responsive to a change in the light intensity control input corresponding to an increase in light intensity.
Abstract translation: 一种装置，包括：电流调制电路，被配置为响应于脉冲宽度调制控制信号调制至少一个发光器件中的电流;以及控制电路，被配置为响应于第一控制来控制脉宽调制控制信号的脉冲宽度 并且响应于第二控制输入来控制脉宽调制控制信号的频率。 第一控制输入可以包括例如电流控制输入，并且第二控制输入可以包括诸如调光输入的光强度控制输入。 控制电路可以被配置为响应于光强度控制输入的变化而响应于光强度的降低而增加频率，并且响应于光强度的增加对光强度控制输入的变化而降低频率。
-
2.发明授权Lighting apparatus with variable current switching frequency and methods of operating same 有权具有可变电流开关频率的照明装置及其操作方法公开(公告)号：US09585218B2
公开(公告)日：2017-02-28
申请号：US14465431
申请日：2014-08-21
Applicant: Cree, Inc.
Inventor： Daniel Pope , Xiuge Yang
CPC classification number: H05B33/0845 , H05B33/0818 , H05B37/0281 , Y02B20/347 , Y02B20/42
Abstract: An apparatus includes a current modulation circuit configured to modulate a current in at least one light-emitting device responsive to a pulse width modulated control signal and a control circuit configured to control a pulse width of the pulse width modulated control signal responsive to a first control input and to control a frequency of the pulse width modulated control signal responsive to a second control input. The first control input may include, for example, a current control input, and the second control input may include a light intensity control input, such as a dimming input. The control circuit may be configured to increase the frequency responsive to a change in the light intensity control input corresponding to a decrease in light intensity and to decrease the frequency responsive to a change in the light intensity control input corresponding to an increase in light intensity.
Abstract translation: 一种装置，包括：电流调制电路，被配置为响应于脉冲宽度调制控制信号调制至少一个发光器件中的电流;以及控制电路，被配置为响应于第一控制来控制脉宽调制控制信号的脉冲宽度 并且响应于第二控制输入来控制脉宽调制控制信号的频率。 第一控制输入可以包括例如电流控制输入，并且第二控制输入可以包括诸如调光输入的光强度控制输入。 控制电路可以被配置为响应于光强度控制输入的变化而响应于光强度的降低而增加频率，并且响应于光强度的增加对光强度控制输入的变化而降低频率。
-
Search Results
2
records
(took 0.01 seconds)
