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1. 发明授权

US08358084B2 LED current control circuit, current balancer and driving apparatus 有权
标题翻译： LED电流控制电路，电流平衡器和驱动装置
公开(公告)号：US08358084B2
公开(公告)日：2013-01-22
申请号：US12826699
申请日：2010-06-30
申请人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
发明人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B33/0887 , H05B33/0827 , H05B33/0866 , Y02B20/341
摘要： An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.
摘要翻译：提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

2. 发明申请

US20120112645A1 FEEDBACK CONTROL CIRCUIT AND LED DRIVING CIRCUIT 有权
标题翻译：反馈控制电路和LED驱动电路
公开(公告)号：US20120112645A1
公开(公告)日：2012-05-10
申请号：US13218405
申请日：2011-08-25
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0824 , H05B33/0827 , Y02B20/346
摘要： The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.
摘要翻译：本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。调光信号在第一状态和第二状态之间改变。当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

3. 发明申请

US20110109231A1 LED CURRENT CONTROL CIRCUIT, CURRENT BALANCER AND DRIVING APPARATUS 有权
标题翻译： LED电流控制电路，电流平衡和驱动装置
公开(公告)号：US20110109231A1
公开(公告)日：2011-05-12
申请号：US12826699
申请日：2010-06-30
申请人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
发明人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0887 , H05B33/0827 , H05B33/0866 , Y02B20/341
摘要： An LED current control circuit including a current adjusting unit, a detecting unit, and a current control unit is provided. The current adjusting unit has a current control end coupled to an LED string for determining an amount of current flowing through the LED string according to a current control signal. The detecting unit detects the current control end and determines whether to generate a protecting signal according to a protecting voltage value. The current control unit generates the current control signal to control the amount of current flowing through the LED string of and determines whether to stop the current flowing through the LED string according to the protecting signal.
摘要翻译：提供了包括电流调节单元，检测单元和电流控制单元的LED电流控制电路。电流调节单元具有耦合到LED串的电流控制端，用于根据电流控制信号确定流过LED串的电流量。检测单元检测电流控制端，并根据保护电压值确定是否产生保护信号。电流控制单元产生电流控制信号以控制流过LED串的电流量，并根据保护信号确定是否停止流经LED串的电流。

4. 发明授权

US08664893B2 Feedback control circuit and LED driving circuit 有权
标题翻译：反馈控制电路和LED驱动电路
公开(公告)号：US08664893B2
公开(公告)日：2014-03-04
申请号：US13218405
申请日：2011-08-25
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Hai-Po Li
IPC分类号： H05B37/02
CPC分类号： H05B33/0818 , H05B33/0824 , H05B33/0827 , Y02B20/346
摘要： The present invention provides a feedback control circuit and an LED driving circuit for using the same, wherein the feedback control circuit receives a dimming signal. The dimming signal is changed between a first state and a second state. When being in the first state, the feedback control circuit controls a converter circuit to drive the LED module for lighting stably. When being in the second state, the feedback control circuit controls the converter circuit to maintain the power conversion of the converter circuit to have an output voltage outputted by the converter circuit maintained at a level close to a lighting threshold voltage of the LED module.
摘要翻译：本发明提供一种反馈控制电路和使用该反馈控制电路的LED驱动电路，其中反馈控制电路接收调光信号。调光信号在第一状态和第二状态之间改变。当处于第一状态时，反馈控制电路控制转换器电路以驱动LED模块以稳定点亮。当处于第二状态时，反馈控制电路控制转换器电路以维持转换器电路的功率转换，使转换器电路输出的输出电压保持在接近LED模块的点亮阈值电压的水平。

5. 发明授权

US09035560B2 LED driving control circuit and LED driving circuit 有权
标题翻译： LED驱动控制电路和LED驱动电路
公开(公告)号：US09035560B2
公开(公告)日：2015-05-19
申请号：US13348628
申请日：2012-01-11
申请人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
发明人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0818 , H05B33/0827
摘要： The present invention provides an LED (Light-Emitting Diode) driving control circuit for controlling a converting circuit to transform an input power source into an output voltage for driving an LED module. The LED module has a plurality of LED strings. The LED driving control circuit includes a voltage detecting circuit and a feedback control circuit. The voltage detecting circuit has a plurality of detection circuits, and each detection circuit is coupled to a terminal of the corresponding LED string to determine whether a voltage of the terminal is higher or lower than a preset value. The voltage detecting circuit generates a feedback signal according to the determination results. The feedback control circuit controls the converting circuit to modulate the output voltage according to the feedback signal.
摘要翻译：本发明提供一种LED（发光二极管）驱动控制电路，用于控制转换电路以将输入电源变换为用于驱动LED模块的输出电压。 LED模块具有多个LED串。 LED驱动控制电路包括电压检测电路和反馈控制电路。电压检测电路具有多个检测电路，并且每个检测电路耦合到相应LED串的端子，以确定端子的电压是否高于或低于预设值。电压检测电路根据判定结果生成反馈信号。反馈控制电路根据反馈信号控制转换电路来调制输出电压。

6. 发明授权

US08664884B2 LED driving circuit and feedback control circuit thereof 有权
标题翻译： LED驱动电路及其反馈控制电路
公开(公告)号：US08664884B2
公开(公告)日：2014-03-04
申请号：US13241299
申请日：2011-09-23
申请人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
发明人： Hai-Po Li , Shian-Sung Shiu , Li-Min Lee
IPC分类号： G05F1/00
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0827 , H05B33/0845 , Y02B20/346
摘要： An LED (Light-Emitting Diode) driving circuit to drive an LED module is provided. The LED driving circuit includes a converting circuit and a feedback control circuit. The converting circuit is coupled to the LED module, and converts an input voltage into an output voltage according to at least one control signal. The feedback control circuit generates the control signal to control the converting circuit to perform voltage conversion according to a feedback signal. In addition, the feedback control circuit receives a dimming signal, and is operated in a first state or a second state in response to the dimming signal, wherein the feedback control circuit adjusts the duty cycle of the control signal to have the duty cycle larger than or equal to a predetermined duty cycle in a predetermined period right after the feedback control circuit is operated from the second state to the first state.
摘要翻译：提供了用于驱动LED模块的LED（发光二极管）驱动电路。 LED驱动电路包括转换电路和反馈控制电路。转换电路耦合到LED模块，并根据至少一个控制信号将输入电压转换成输出电压。反馈控制电路产生控制信号以根据反馈信号控制转换电路进行电压转换。此外，反馈控制电路接收调光信号，并响应于调光信号而在第一状态或第二状态下操作，其中反馈控制电路调节控制信号的占空比以使占空比大于或等于在反馈控制电路从第二状态操作到第一状态之后的预定周期内的预定占空比。

7. 发明授权

US08971059B2 Resonant converting circuit and resonant controller 有权
标题翻译：谐振转换电路和谐振控制器
公开(公告)号：US08971059B2
公开(公告)日：2015-03-03
申请号：US13447285
申请日：2012-04-16
申请人： Ke Peng , Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu
发明人： Ke Peng , Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu
IPC分类号： H02M3/335 , H02H7/10 , H02M1/36 , H02M3/337 , H02M1/00
CPC分类号： H02H7/10 , H02M1/36 , H02M3/335 , H02M3/3376 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： A current detecting circuit detects a resonant current in a primary side of a resonant converting circuit to generate a current detecting signal. An output detecting circuit generates a feedback signal according to the output voltage. A resonant controller generates a clock signal and adjusts an operating frequency of the clock signal in response to the feedback signal for modulating the output voltage of the resonant circuit. The resonant controller includes a resonance deviation protection unit which detects the current detecting signal according to a phase of the clock signal to determine whether the resonant circuit enters a region of zero current switching or not. When the resonant circuit enters the region of zero current switching, the resonant controller executes a corresponding protection process in response to that the resonant controller operates in a starting mode or a normal operating mode.
摘要翻译：电流检测电路检测谐振转换电路的初级侧的谐振电流以产生电流检测信号。输出检测电路根据输出电压产生反馈信号。谐振控制器响应于用于调制谐振电路的输出电压的反馈信号而产生时钟信号并调整时钟信号的工作频率。谐振控制器包括谐振偏差保护单元，其根据时钟信号的相位检测电流检测信号，以确定谐振电路是否进入零电流切换的区域。当谐振电路进入零电流切换区域时，谐振控制器响应于谐振控制器在启动模式或正常工作模式下运行而执行相应的保护处理。

8. 发明申请

US20130169249A1 MULTI-PHASE DC-DC CONVERTER AND METHOD OF CONTROLLING THE SAME 审中-公开
标题翻译：多相DC-DC转换器及其控制方法
公开(公告)号：US20130169249A1
公开(公告)日：2013-07-04
申请号：US13449321
申请日：2012-04-18
申请人： Li-Min Lee , Quan Gan , Chung-Che Yu , Shian-Sung Shiu
发明人： Li-Min Lee , Quan Gan , Chung-Che Yu , Shian-Sung Shiu
IPC分类号： G05F1/00
CPC分类号： H02M3/1584
摘要： A multi-phase DC-DC converter and a method of controlling a multi-phase DC-DC converter are disclosed. The multi-phase DC-DC converter is adapted to control a plurality of channels in a multi-phase DC-DC converting circuit for providing an output voltage. The multi-phase DC-DC converter comprises a constant on unit, a plurality of PWM units and a pulse width logic unit. The constant on unit determines a time point of generating a turning on signal indicative of a preset time period according to the output voltage. Each PWM unit generates a PWM signal, and a pulse width thereof is determined according to the turning on signal and currents of the channels. The pulse width logic unit controls the channels according to the corresponding PWM signals generated by the plurality of PWM units.
摘要翻译：公开了一种多相DC-DC转换器和一种控制多相DC-DC转换器的方法。多相DC-DC转换器适于在多相DC-DC转换电路中控制多个通道以提供输出电压。多相DC-DC转换器包括恒定单元，多个PWM单元和脉冲宽度逻辑单元。常数单元根据输出电压确定产生指示预设时间段的导通信号的时间点。每个PWM单元产生PWM信号，并且其脉冲宽度根据通道的导通信号和电流确定。脉冲宽度逻辑单元根据由多个PWM单元产生的对应的PWM信号控制信道。

9. 发明授权

US08421511B2 Power converter and pulse width modulation signal controlling apparatus thereof 有权
标题翻译：功率转换器及其脉宽调制信号控制装置
公开(公告)号：US08421511B2
公开(公告)日：2013-04-16
申请号：US12909838
申请日：2010-10-22
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Ji-Ming Chen
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Ji-Ming Chen
IPC分类号： H03K7/08
CPC分类号： H02M1/08
摘要： A pulse width modulation signal controlling apparatus including a signal pin, a core circuit, a setting judging circuit, a signal adjusting and selecting circuit, and a timer circuit is disclosed. The signal pin is connected to a setting device for receiving an external input signal. The setting judging circuit receives and compares a setting signal with a reference value to generate a setting judgment result. The signal adjusting and selecting circuit couples the signal pin to the setting judging circuit and adjusts the external input signal into the setting signal according to the setting device in a first state, and couples the signal pin to the core circuit in a second state. The timer circuit controls the state of the signal adjusting and selecting circuit, wherein the timer circuit sets the signal adjusting and selecting circuit in the first state during a predetermined time period.
摘要翻译：公开了一种包括信号引脚，核心电路，设定判断电路，信号调整和选择电路以及定时器电路的脉宽调制信号控制装置。信号引脚连接到用于接收外部输入信号的设置装置。设置判断电路接收并将设置信号与参考值进行比较以产生设置判断结果。信号调节和选择电路将信号引脚耦合到设置判断电路，并根据第一状态的设置装置将外部输入信号调整为设置信号，并将信号引脚耦合到核心电路处于第二状态。定时器电路控制信号调整和选择电路的状态，其中定时器电路在预定时间段内将信号调节和选择电路设置在第一状态。

10. 发明授权

US08334661B2 Feedback control circuit and power converting circuit 有权
标题翻译：反馈控制电路和电源转换电路
公开(公告)号：US08334661B2
公开(公告)日：2012-12-18
申请号：US12886504
申请日：2010-09-20
申请人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Xi Tu
发明人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Xi Tu
IPC分类号： G05F1/00
CPC分类号： H05B33/0815 , H05B33/0848
摘要： An exemplary embodiment of the invention provides a set of an initial value of an error amplifying signal in the feedback control circuit for feedback control, so as to reduce the time and the amplitude of oscillation of the error amplifying signal. Accordingly, a feedback control circuit and a power converting circuit provided in an exemplary embodiment of the invention not only reduce the degree and the time of overshoot but also provide accurate and stable feedback control.
摘要翻译：本发明的示例性实施例提供了用于反馈控制的反馈控制电路中的误差放大信号的初始值的集合，以便减少误差放大信号的时间和振幅。因此，在本发明的示例性实施例中提供的反馈控制电路和功率转换电路不仅减小过冲的程度和时间，而且还提供准确和稳定的反馈控制。

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