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    • 1. 发明授权
    • Method and apparatus for power driving
    • 动力驾驶方法与装置
    • US08525434B2
    • 2013-09-03
    • US12884255
    • 2010-09-17
    • Daniel ReedJinho Choi
    • Daniel ReedJinho Choi
    • G05F1/00
    • H02M3/33507H05B33/0815
    • Aspects of the disclosure provide a power circuit to provide electric energy with control and protection for driving a load, such as a light emitting diode (LED) array, and the like. The power circuit includes a converter, a voltage feedback module, a current feedback module and a controller. The converter is configured to receive electric energy from an energy source and to deliver the electric energy for driving the load. The voltage feedback module is configured to generate a first feedback signal based on a voltage of the delivered electric energy. The current feedback module is configured to generate a second feedback signal based on a current of the delivered electric energy. The controller is configured to receive the first feedback signal and the second feedback signal, and to control the converter to receive and deliver the electric energy based on the first feedback signal and the second feedback signal.
    • 本公开的方面提供了一种电力电路,以向电能提供用于驱动诸如发光二极管(LED)阵列等的负载的控制和保护。 电源电路包括转换器,电压反馈模块,电流反馈模块和控制器。 转换器被配置为从能量源接收电能并传送用于驱动负载的电能。 电压反馈模块被配置为基于所递送的电能的电压产生第一反馈信号。 电流反馈模块被配置为基于所传送的电能的电流产生第二反馈信号。 控制器被配置为接收第一反馈信号和第二反馈信号,并且基于第一反馈信号和第二反馈信号来控制转换器接收和传递电能。
    • 2. 发明授权
    • Two-peak current control for flyback voltage converters
    • 用于回扫电压转换器的两峰电流控制
    • US08947895B2
    • 2015-02-03
    • US13404584
    • 2012-02-24
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • G05F1/00H02M3/335H02M1/42H05B33/08H02M1/00
    • H02M3/33523H02M1/4258H02M2001/0022H05B33/0815Y02B20/347Y02B70/126
    • A system including a switch configured to supply power to a load. A first comparator is configured to compare a first current through the switch to a first threshold. A second comparator is configured to compare the first current through the switch to a second threshold. The second threshold is greater than the first threshold. A current control module is configured to turn off the switch (i) for a first duration in response to the first current through the switch being greater than or equal to the first threshold and (ii) for a second duration in response to the first current through the switch being greater than or equal to the second threshold. The current control module is configured to adjust the second duration based on a difference between an estimated current through the load and a desired current through the load.
    • 一种包括被配置为向负载供电的开关的系统。 第一比较器被配置为将通过开关的第一电流与第一阈值进行比较。 第二比较器被配置为将通过开关的第一电流与第二阈值进行比较。 第二阈值大于第一阈值。 电流控制模块被配置为响应于通过开关的第一电流而将开关(i)的第一持续时间关断大于或等于第一阈值,以及(ii)响应于第一电流的第二持续时间 通过开关大于或等于第二阈值。 电流控制模块被配置为基于通过负载的估计电流与通过负载的期望电流之间的差来调整第二持续时间。
    • 3. 发明申请
    • Two-Peak Current Control for Flyback Voltage Converters
    • 反激电压转换器的两峰电流控制
    • US20120230065A1
    • 2012-09-13
    • US13404584
    • 2012-02-24
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • H02M3/335
    • H02M3/33523H02M1/4258H02M2001/0022H05B33/0815Y02B20/347Y02B70/126
    • A system including a switch configured to supply power to a load. A first comparator is configured to compare a first current through the switch to a first threshold. A second comparator is configured to compare the first current through the switch to a second threshold. The second threshold is greater than the first threshold. A current control module is configured to turn off the switch (i) for a first duration in response to the first current through the switch being greater than or equal to the first threshold and (ii) for a second duration in response to the first current through the switch being greater than or equal to the second threshold. The current control module is configured to adjust the second duration based on a difference between an estimated current through the load and a desired current through the load.
    • 一种包括被配置为向负载供电的开关的系统。 第一比较器被配置为将通过开关的第一电流与第一阈值进行比较。 第二比较器被配置为将通过开关的第一电流与第二阈值进行比较。 第二阈值大于第一阈值。 电流控制模块被配置为响应于通过开关的第一电流而将开关(i)的第一持续时间关断大于或等于第一阈值,以及(ii)响应于第一电流的第二持续时间 通过开关大于或等于第二阈值。 电流控制模块被配置为基于通过负载的估计电流与通过负载的期望电流之间的差来调整第二持续时间。
    • 5. 发明授权
    • TRIAC dimmer detection
    • TRIAC调光器检测
    • US08896288B2
    • 2014-11-25
    • US13398150
    • 2012-02-16
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • Jinho ChoiHao PengWanfeng ZhangTuyen Doan
    • G01D1/14H05B33/08H02M3/335H02M1/08H02M1/00
    • G01R19/0084G01R17/02H02M1/082H02M3/33523H02M2001/0022H05B33/0854
    • Methods, circuits, and systems for determining the presence of a chopped input signal are disclosed. A digital signal generator can produce multiple digital signals when an alternating current (AC) signal input reaches multiple threshold voltages. The times at which the threshold voltages are reached can be determined by looking at the times at which the digital signals go high and low. The differences between the times at which the digital signals go high and low are used to determine if the AC signal input is a leading or trailing edge chopped signal. The AC input signal is a leading edge chopped signal when the difference between the times at which the digital signals go high is less than a predetermined time threshold, and is a trailing edge chopped signal when the difference between the times at which the digital signals go low is less than a predetermined time threshold.
    • 公开了用于确定斩波输入信号的存在的方法,电路和系统。 当交流(AC)信号输入达到多个阈值电压时,数字信号发生器可以产生多个数字信号。 达到阈值电压的时间可以通过查看数字信号变为高电平和低电平的时间来确定。 使用数字信号变为高电平和低电平的时间之间的差异来确定AC信号输入是前导或后沿斩波信号。 当数字信号变高的时间之间的差小于预定时间阈值时,AC输入信号是前沿斩波信号,并且当数字信号到达时间之间的差异时是后沿斩波信号 低于预定时间阈值。
    • 6. 发明授权
    • Detector for multi-level modulated signal and detection method using the same, and iterative receiver for multi-level modulated signal and iteratively receiving method using the same
    • 用于多电平调制信号的检测器和使用其的检测方法,以及用于多电平调制信号的迭代接收机以及使用其的迭代接收方法
    • US08136022B2
    • 2012-03-13
    • US11920226
    • 2006-05-12
    • Byung-Jang JeongJae Young AhnJinho Choi
    • Byung-Jang JeongJae Young AhnJinho Choi
    • H03M13/03
    • H04B7/04
    • Provided are a detector for a multi-level modulated signal and a detection method using the same, and an iterative receiver for a multi-level modulated signal and an iteratively receiving method using the same. The detector includes: a channel estimator estimating a channel response of each of a plurality of bits included in at least one received signal based on multi-level modulation; a hard decision unit, for each bit, selecting at least one of a plurality of bits remaining by excluding the bit and performing a hard decision based on a pre-probability of the selected bit; and a reliability calculator calculating reliability of each of all the bits in the received signal based on the received signal from which the hard-decided bit component is cancelled and the estimated channel response. Accordingly, the computation amount according to detection can be reduced without the degradation of performance.
    • 提供了一种用于多电平调制信号的检测器和使用该检测方法的检测方法,以及用于多电平调制信号的迭代接收机和使用其的迭代接收方法。 检测器包括:信道估计器,用于基于多电平调制来估计包含在至少一个接收信号中的多个比特中的每一个的信道响应; 硬决策单元,对于每个位,通过排除所述比特来选择剩余的多个比特中的至少一个,并且基于所选择的比特的预先概率执行硬判决; 以及可靠性计算器,基于从硬判决位分量被取消的接收信号和所估计的信道响应,计算接收信号中的所有比特中的每一个的可靠性。 因此,可以降低根据检测的计算量,而不会降低性能。
    • 10. 发明授权
    • Terminal for multiple functions in a power supply
    • 电源中多功能端子
    • US07339359B2
    • 2008-03-04
    • US11083474
    • 2005-03-18
    • Jinho ChoiEung-Suen Kim
    • Jinho ChoiEung-Suen Kim
    • G05F1/575G05F1/569
    • H02M3/33523H02M1/32
    • An integrated circuit (IC) device includes a first function circuitry operable to perform a first function and a second function circuitry operable to perform a second function. A multi-function terminal is provided. A voltage sensing circuit is coupled to the multi-function terminal for sensing a voltage at the multi-function terminal. If the sensed voltage is above a predetermined level, the first function circuitry is activated to perform the first function. If the sensed voltage is below the predetermined level, the second function circuit is activated to perform the second function.
    • 集成电路(IC)装置包括可操作以执行第一功能的第一功能电路和可操作以执行第二功能的第二功能电路。 提供多功能终端。 电压感测电路耦合到多功能端子,用于感测多功能端子处的电压。 如果感测到的电压高于预定电平,则第一功能电路被激活以执行第一功能。 如果检测到的电压低于预定电平,则第二功能电路被激活以执行第二功能。