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公开(公告)号:US20100320979A1
公开(公告)日:2010-12-23
申请号:US12487355
申请日:2009-06-18
Applicant: Chun LU , Luyang LUO , Feng SHI , Xinhe SU
Inventor: Chun LU , Luyang LUO , Feng SHI , Xinhe SU
IPC: G05F1/10
CPC classification number: H02M3/156 , H02M2001/0009
Abstract: A current control system includes a first switch, a second switch, and a controller. The second switch is coupled in parallel with the first switch and operable for providing a feedback signal indicative of a current flowing through the first switch. The feedback signal is determined by a width-to-length ratio of the first switch and a width-to-length ratio of the second switch. In addition, the controller is coupled to the first and second switches and operable for adjusting the current according to the feedback signal.
Abstract translation: 电流控制系统包括第一开关,第二开关和控制器。 第二开关与第一开关并联耦合,并且可操作以提供指示流过第一开关的电流的反馈信号。 反馈信号由第一开关的宽度比和第二开关的宽度与长度之比确定。 此外,控制器耦合到第一和第二开关,并且可操作用于根据反馈信号调整电流。
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公开(公告)号:US20100327658A1
公开(公告)日:2010-12-30
申请号:US12495758
申请日:2009-06-30
Applicant: Chun LU , Luyang LUO
Inventor: Chun LU , Luyang LUO
IPC: H02J1/00
CPC classification number: H02J7/34 , H02J2007/0062 , H02M2001/0045 , Y10T307/505 , Y10T307/511 , Y10T307/549 , Y10T307/696
Abstract: A system includes a power bus and a circuit. The power bus delivers power from a first power source to an output node. The circuit monitors a current flowing through the power bus and provides power from a second power source to the output node based on an amount of the current, and maintains a voltage level of the output node in a predetermined range.
Abstract translation: 系统包括电源总线和电路。 电源总线将功率从第一个电源传输到输出节点。 该电路监视流过电力总线的电流,并且基于电流量将第二电源的功率提供给输出节点,并且将输出节点的电压电平维持在预定范围内。
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公开(公告)号:US20120327129A1
公开(公告)日:2012-12-27
申请号:US13237960
申请日:2011-09-21
Applicant: Eric LI , Chun LU , Nedi NADERSHAHI , Sonny TANG
Inventor: Eric LI , Chun LU , Nedi NADERSHAHI , Sonny TANG
CPC classification number: H05B33/0818 , G09G3/2018 , G09G3/32 , G09G3/3216 , G09G3/3283 , G09G3/3406 , G09G3/3413 , G09G3/3426 , G09G5/10 , G09G2320/0242 , G09G2320/0257 , G09G2320/0285 , G09G2320/029 , G09G2320/062 , G09G2320/064 , G09G2320/0666 , G09G2330/06 , H05B33/0857
Abstract: An LED display system comprises an LED array and an LED driver circuit. An LED driver circuit comprises components including a phase lock loop, a pulse width modulation engine, a configuration register, a series of gain adjustable fast charge current sources, and a serial input/output interface. The components in this driver circuit may be integrated on a same chip. The LED array may be arranged in a common cathode configuration.
Abstract translation: LED显示系统包括LED阵列和LED驱动电路。 LED驱动器电路包括包括锁相环,脉宽调制引擎,配置寄存器,一系列增益可调快速充电电流源和串行输入/输出接口的组件。 该驱动器电路中的组件可以集成在同一芯片上。 LED阵列可以布置成共同的阴极配置。
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