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公开(公告)号:US20110127921A1
公开(公告)日:2011-06-02
申请号:US12954958
申请日:2010-11-29
申请人: Li-Wei Lin , Chen-Chiang LEE , Chi-Hsin LEE , Yuan-Po HUANG , Wen-Ming LIN
发明人: Li-Wei Lin , Chen-Chiang LEE , Chi-Hsin LEE , Yuan-Po HUANG , Wen-Ming LIN
IPC分类号: H05B37/02
CPC分类号: H05B33/0827 , H05B33/0887
摘要: A light-emitting diode (LED) current balance circuit includes a reference current generator, a current mirror and a voltage compensation circuit. The reference current generator provides a reference current robust against disturbance in a supply voltage applied to the reference current generator. The current mirror generates, according to the reference current, sink currents to bias lightbars and employs a structure to reduce the influence of unmatched transistors on the sink currents so as to stabilize and clamp currents through the lightbar. The voltage compensation circuit detects the voltages across the lightbars to compensate the lightbars having various forward voltages so as to ensure the turn-on of all lightbars and effectively balance the currents through the lightbars. Therefore, the invention employs simpler circuit architecture and not need a specific-purpose LED controller so as to be cheaper and more competitive.
摘要翻译: 发光二极管(LED)电流平衡电路包括参考电流发生器,电流镜和电压补偿电路。 参考电流发生器提供了对施加到参考电流发生器的电源电压中的干扰的参考电流。 电流镜根据参考电流产生吸收电流以偏置光棒并且采用结构来减少不匹配的晶体管对吸收电流的影响,以便稳定和钳制通过光棒的电流。 电压补偿电路检测光束两端的电压,以补偿具有各种正向电压的光棒,以确保所有光条的导通,并有效平衡通过光棒的电流。 因此,本发明采用更简单的电路架构,并且不需要特定目的的LED控制器,以便更便宜和更具竞争力。
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公开(公告)号:US20130004706A1
公开(公告)日:2013-01-03
申请号:US13171791
申请日:2011-06-29
申请人: Chen-Chiang Lee
发明人: Chen-Chiang Lee
IPC分类号: B32B7/00
CPC分类号: B32B5/26 , A41D2400/10 , B32B2250/03 , B32B2250/20 , B32B2307/304 , B32B2307/724 , B32B2437/00 , Y10T428/24174
摘要: A cloth structure having thermal and stereoscopic effects in accordance with the present invention has a lining set as the inner surface, a surface fabric set as outer surface and an intermediate layer sandwiched between the lining and the surface fabric. The intermediate layer is made of fiber filaments laid and stacked in shape of continuous stretching fiber to perform the fiber body, which is heated to make the fiber filaments shrunk and combined with each other until the fiber body has a thickness suitable for manufacturing or optionally cut to become a thinner size. Thereby, the clothing made by the cloth structure has thermal and ventilating effects and moreover has excellent resilient, supporting and stereoscopic effects.
摘要翻译: 根据本发明的具有热和立体效果的布结构具有作为内表面的衬里,设置为外表面的表面织物和夹在衬里和表面织物之间的中间层。 中间层由以连续拉伸纤维形式堆叠堆叠的纤维丝制成,以进行纤维体的加热,使纤维丝收缩并相互结合,直至纤维体的厚度适于制造或选择性切割 变得更薄。 因此,由布结构制成的衣服具有热和通风效果,并且具有优异的弹性,支撑和立体效果。
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公开(公告)号:US20110096055A1
公开(公告)日:2011-04-28
申请号:US12913837
申请日:2010-10-28
申请人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Wen-Ming Lin , Chun-Chi Liao , Yuan-Po Huang
发明人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Wen-Ming Lin , Chun-Chi Liao , Yuan-Po Huang
IPC分类号: G06F3/038
CPC分类号: H05B33/0887 , H05B33/0815 , H05B33/0818 , H05B33/0827
摘要: A light-emitting diode (LED) driving circuit for driving a plurality of first lightbars and a plurality of second lightbars includes a first current mirror, a second current mirror and a control circuit. The first current mirror, if enabled, balances current among the first lightbars. The second current mirror, if enabled, balances current among the second lightbars. During a first period, the control circuit disables the second current mirror and adjusts the duration of enabling the first current mirror according to a dimming signal. During a second period, the control circuit disables the first current mirror and adjusts the duration of enabling the second current mirror according to the dimming signal. Therefore, only first or second lightbars are driven in each period.
摘要翻译: 用于驱动多个第一光条和多个第二光棒的发光二极管(LED)驱动电路包括第一电流镜,第二电流镜和控制电路。 第一个当前的镜像,如果启用,平衡第一个光条之间的电流。 第二个电流镜如果启用,则平衡第二个光条之间的电流。 在第一时段期间,控制电路禁用第二电流镜,并且根据调光信号调节启用第一电流镜的持续时间。 在第二时段期间,控制电路禁用第一电流镜并根据调光信号调节启用第二电流镜的持续时间。 因此,在每个周期内仅驱动第一或第二个光条。
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公开(公告)号:US08610368B2
公开(公告)日:2013-12-17
申请号:US12974074
申请日:2010-12-21
申请人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee
发明人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee
IPC分类号: G05F1/00
CPC分类号: H05B33/0827
摘要: A serial-type LED device includes p light source units and a dimming circuit. Each light source unit includes first and second terminals, m light strings and m current balance units. Each light string includes LEDs coupled in series to have a first terminal coupled to the first terminal of a corresponding light source unit and a second terminal coupled to the second terminal of the corresponding light source unit through a corresponding current balance unit. The first terminal of the first light source unit is coupled to a second DC voltage, and the second terminal of the i-th light source unit is coupled to the first terminal of the (i+1)-th light source unit, where m and p are integers greater than or equal to 2, and i is any integer from 1 to (p−1). The dimming circuit coupled to the second terminal of the p-th light source unit controls the second DC voltage according to a current outputted from the p-th light source unit.
摘要翻译: 串联型LED器件包括p个光源单元和一个调光电路。 每个光源单元包括第一和第二端子,m个光线和m个电流平衡单元。 每个灯串包括串联耦合的LED以具有耦合到相应光源单元的第一端的第一端和通过相应的电流平衡单元耦合到相应光源单元的第二端的第二端。 第一光源单元的第一端子耦合到第二DC电压,并且第i个光源单元的第二端子耦合到第(i + 1)个光源单元的第一端子,其中m p是大于或等于2的整数,i是从1到(p-1)的整数。 耦合到第p个光源单元的第二端的调光电路根据从第p个光源单元输出的电流来控制第二直流电压。
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公开(公告)号:US08525774B2
公开(公告)日:2013-09-03
申请号:US12913837
申请日:2010-10-28
申请人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Wen-Ming Lin , Chun-Chi Liao , Yuan-Po Huang
发明人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Wen-Ming Lin , Chun-Chi Liao , Yuan-Po Huang
CPC分类号: H05B33/0887 , H05B33/0815 , H05B33/0818 , H05B33/0827
摘要: A light-emitting diode (LED) driving circuit for driving a plurality of first lightbars and a plurality of second lightbars includes a first current mirror, a second current mirror and a control circuit. The first current mirror, if enabled, balances current among the first lightbars. The second current mirror, if enabled, balances current among the second lightbars. During a first period, the control circuit disables the second current mirror and adjusts the duration of enabling the first current mirror according to a dimming signal. During a second period, the control circuit disables the first current mirror and adjusts the duration of enabling the second current mirror according to the dimming signal. Therefore, only first or second lightbars are driven in each period.
摘要翻译: 用于驱动多个第一光条和多个第二光棒的发光二极管(LED)驱动电路包括第一电流镜,第二电流镜和控制电路。 第一个当前的镜像,如果启用,平衡第一个光条之间的电流。 第二个电流镜如果启用,则平衡第二个光条之间的电流。 在第一时段期间,控制电路禁用第二电流镜,并且根据调光信号调节启用第一电流镜的持续时间。 在第二时段期间,控制电路禁用第一电流镜并根据调光信号调节启用第二电流镜的持续时间。 因此,在每个周期内仅驱动第一或第二个光条。
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公开(公告)号:US08525436B2
公开(公告)日:2013-09-03
申请号:US12954958
申请日:2010-11-29
申请人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Yuan-Po Huang , Wen-Ming Lin
发明人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee , Yuan-Po Huang , Wen-Ming Lin
IPC分类号: H05B37/02
CPC分类号: H05B33/0827 , H05B33/0887
摘要: A light-emitting diode (LED) current balance circuit includes a reference current generator, a current mirror and a voltage compensation circuit. The reference current generator provides a reference current robust against disturbance in a supply voltage applied to the reference current generator. The current mirror generates, according to the reference current, sink currents to bias lightbars and employs a structure to reduce the influence of unmatched transistors on the sink currents to stabilize and clamp currents through the lightbar. The voltage compensation circuit detects the voltages across the lightbars to compensate the lightbars having various forward voltages to ensure the turn-on of all lightbars and to effectively balance the currents through the lightbars. Therefore, a simpler circuit architecture is employed which does not need a specific-purpose LED controller to be cheaper and more competitive.
摘要翻译: 发光二极管(LED)电流平衡电路包括参考电流发生器,电流镜和电压补偿电路。 参考电流发生器提供了对施加到参考电流发生器的电源电压中的干扰的参考电流。 电流镜根据参考电流产生吸收电流以偏置光棒并且采用结构来减少不匹配的晶体管对吸收电流的影响,以稳定和钳制通过光棒的电流。 电压补偿电路检测光束两端的电压,以补偿具有各种正向电压的光棒,以确保所有光条的导通,并有效平衡通过光棒的电流。 因此,采用更简单的电路结构,其不需要特定目的的LED控制器以便更便宜和更具竞争力。
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公开(公告)号:US20110148314A1
公开(公告)日:2011-06-23
申请号:US12974074
申请日:2010-12-21
申请人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee
发明人: Li-Wei Lin , Chen-Chiang Lee , Chi-Hsin Lee
IPC分类号: H05B37/02
CPC分类号: H05B33/0827
摘要: A serial-type LED device includes p light source units and a dimming circuit. Each light source unit includes a first and a second terminals, m light strings and m current balance units. Each light string includes LEDs coupled in series to have a first terminal coupled to the first terminal of a corresponding light source unit and a second terminal coupled to the second terminal of the corresponding light source unit through a corresponding current balance unit. The first terminal of the first light source unit is coupled to a second DC voltage, and the second terminal of the i-th light source unit is coupled to the first terminal of the (i+1)-th light source unit, where m and p are integers greater than or equal to 2 and i is any integer from 1 to (p−1). The dimming circuit coupled to the second terminal of the p-th light source unit controls the second DC voltage according to a current outputted from the p-th light source unit.
摘要翻译: 串联型LED器件包括p个光源单元和一个调光电路。 每个光源单元包括第一和第二端子,m个光线和m个电流平衡单元。 每个灯串包括串联耦合的LED以具有耦合到相应光源单元的第一端的第一端和通过相应的电流平衡单元耦合到相应光源单元的第二端的第二端。 第一光源单元的第一端子耦合到第二DC电压,并且第i个光源单元的第二端子耦合到第(i + 1)个光源单元的第一端子,其中m p是大于或等于2的整数,i是从1到(p-1)的任何整数。 耦合到第p个光源单元的第二端的调光电路根据从第p个光源单元输出的电流来控制第二直流电压。
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