公开(公告)号：US09232605B2

公开(公告)日：2016-01-05

申请号：US13360077

申请日：2012-01-27

Applicant: Shian-Sung Shiu ,  Chia-Ming Chan

Inventor： Shian-Sung Shiu ,  Chia-Ming Chan

IPC: H05B39/00 ,  H05B33/08

CPC classification number: H05B33/089 ,  Y02B20/341

Abstract: A load driving circuit comprises a converting circuit, a converting controller, a load driving modulator, and a charge spike protection circuit. The converting circuit is adapted to be coupled to an output power source and supplies a driving power source to drive a load. The converting circuit has an output capacitance coupled to an output end thereof. The converting controller controls an amount of the driving power source responsive to a current or a voltage of the load. The load driving modulator and the load, connected in series, are coupled to the output end and so the load driving modulator adjusts an electronic state of the load. The charge spike protection circuit is coupled to the output capacitance and at least one connecting node of the load and the load driving modulator to provide a unidirectional charge release path to the output capacitance.

Abstract translation: 负载驱动电路包括转换电路，转换控制器，负载驱动调制器和充电尖峰保护电路。 转换电路适于耦合到输出电源并提供驱动电源以驱动负载。 转换电路具有耦合到其输出端的输出电容。 转换控制器响应于负载的电流或电压来控制驱动电源的量。 串联连接的负载驱动调制器和负载耦合到输出端，因此负载驱动调制器调整负载的电子状态。 电荷尖峰保护电路耦合到输出电容和负载和负载驱动调制器的至少一个连接节点，以向输出电容提供单向电荷释放路径。

公开(公告)号：US08823280B2

公开(公告)日：2014-09-02

申请号：US13567101

申请日：2012-08-06

Applicant: Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

Inventor： Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

IPC: G05F1/00 ,  H05B37/02

CPC classification number: H05B33/0827 ,  Y02B20/341

Abstract: An LED driving circuit comprises a converting circuit, a current regulator, a converting controller and a low dimming protection blocking circuit, is disclosed. The converting circuit is adapted to perform a power conversion to provide a driving voltage for lighting an LED module. The current regulator is coupled to the LED module for regulating a current flowing through the LED module. The current regulator conducts and stops conducting the current flowing through the LED module according to a dimming signal, and executes a protection process when the LED module operates abnormal. The converting controller controls the power conversion of the converting circuit according to a voltage level of at least one connection node of the current regulator and the LED module. The low dimming protection blocking circuit stops the protection process of the current regulator when the driving voltage is lower than a predetermined value.

Abstract translation: LED驱动电路包括转换电路，电流调节器，转换控制器和低调光保护阻断电路。 转换电路适于执行功率转换以提供用于点亮LED模块的驱动电压。 电流调节器耦合到LED模块，用于调节流过LED模块的电流。 电流调节器根据调光信号进行并停止导通LED模块的电流，并在LED模块运行异常时执行保护过程。 转换控制器根据电流调节器和LED模块的至少一个连接节点的电压电平来控制转换电路的功率转换。 当驱动电压低于预定值时，低调光保护阻断电路停止电流调节器的保护处理。

公开(公告)号：US20130271006A1

公开(公告)日：2013-10-17

申请号：US13567101

申请日：2012-08-06

Applicant: Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

Inventor： Shian-Sung Shiu ,  Chia-Ming Chan ,  Li-Min Lee ,  Chung-Che Yu

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  Y02B20/341

Abstract: An LED driving circuit comprises a converting circuit, a current regulator, a converting controller and a low dimming protection blocking circuit, is disclosed. The converting circuit is adapted to perform a power conversion to provide a driving voltage for lighting an LED module. The current regulator is coupled to the LED module for regulating a current flowing through the LED module. The current regulator conducts and stops conducting the current flowing through the LED module according to a dimming signal, and executes a protection process when the LED module operates abnormal. The converting controller controls the power conversion of the converting circuit according to a voltage level of at least one connection node of the current regulator and the LED module. The low dimming protection blocking circuit stops the protection process of the current regulator when the driving voltage is lower than a predetermined value.

Abstract translation: LED驱动电路包括转换电路，电流调节器，转换控制器和低调光保护阻断电路。 转换电路适于执行功率转换以提供用于点亮LED模块的驱动电压。 电流调节器耦合到LED模块，用于调节流过LED模块的电流。 电流调节器根据调光信号进行并停止导通LED模块的电流，并在LED模块运行异常时执行保护过程。 转换控制器根据电流调节器和LED模块的至少一个连接节点的电压电平来控制转换电路的功率转换。 当驱动电压低于预定值时，低调光保护阻断电路停止电流调节器的保护处理。

公开(公告)号：US08971059B2

公开(公告)日：2015-03-03

申请号：US13447285

申请日：2012-04-16

Applicant: Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

Inventor： Ke Peng ,  Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC: H02M3/335 ,  H02H7/10 ,  H02M1/36 ,  H02M3/337 ,  H02M1/00

CPC classification number: H02H7/10 ,  H02M1/36 ,  H02M3/335 ,  H02M3/3376 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140062428A1

公开(公告)日：2014-03-06

申请号：US13604635

申请日：2012-09-06

Applicant: Shian-Sung Shiu ,  Ke Peng ,  Li-Min Lee ,  Ying Wang ,  Yong Huang

Inventor： Shian-Sung Shiu ,  Ke Peng ,  Li-Min Lee ,  Ying Wang ,  Yong Huang

IPC: G05F1/10

CPC classification number: H05B33/0848

Abstract: Disclosed is a feedback detection circuit, adapted to provide a feedback detection signal wherein a converting circuit provides a driving power source to drive a load according to the feedback detection signal. The feedback detection circuit comprises an operational conversion circuit and a signal limitation circuit. The operational conversion circuit generates the feedback detection signal in response to a level of a detected node of the load. The operational conversion circuit has an operational amplifier, which modulates the level of the feedback detection signal in response to the level of the detected node. The signal limitation circuit is coupled to the operational conversion circuit for clamping a level rang of the feedback detection signal.

Abstract translation: 公开了一种反馈检测电路，其适于提供反馈检测信号，其中转换电路根据反馈检测信号提供驱动电源来驱动负载。 反馈检测电路包括操作转换电路和信号限制电路。 操作转换电路响应于检测到的负载节点的电平而产生反馈检测信号。 操作转换电路具有运算放大器，其响应于检测到的节点的电平来调制反馈检测信号的电平。 信号限制电路耦合到操作转换电路，用于钳位反馈检测信号的电平。

公开(公告)号：US20130169249A1

公开(公告)日：2013-07-04

申请号：US13449321

申请日：2012-04-18

Applicant: Li-Min Lee ,  Quan Gan ,  Chung-Che Yu ,  Shian-Sung Shiu

Inventor： Li-Min Lee ,  Quan Gan ,  Chung-Che Yu ,  Shian-Sung Shiu

IPC: G05F1/00

CPC classification number: H02M3/1584

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08421511B2

公开(公告)日：2013-04-16

申请号：US12909838

申请日：2010-10-22

Applicant: Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

Inventor： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

IPC: H03K7/08

CPC classification number: H02M1/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08334661B2

公开(公告)日：2012-12-18

申请号：US12886504

申请日：2010-09-20

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

IPC: G05F1/00

CPC classification number: H05B33/0815 ,  H05B33/0848

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120268088A1

公开(公告)日：2012-10-25

申请号：US13284974

申请日：2011-10-30

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Chao Shao

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Chao Shao

IPC: G05F1/46

CPC classification number: H02M3/1588 ,  H02M2001/0022 ,  H02M2001/0025 ,  Y02B70/1466

Abstract: A constant on-time period of a DC to DC buck converting controller is adjusted according to a level of a preset output voltage. Therefore, the DC to DC buck converting controller of the present invention is suitable for any applications with different requests of output voltages or different operating mode.

Abstract translation: DC-DC降压转换控制器的恒定导通时间段根据预设输出电压的电平进行调整。 因此，本发明的DC-DC降压转换控制器适用于具有不同输出电压或不同工作模式要求的任何应用。

公开(公告)号：US20120268011A1

公开(公告)日：2012-10-25

申请号：US13244653

申请日：2011-09-25

Applicant: Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

Inventor： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0827

Abstract: An LED driving circuit includes a first and a second LED modules, a first and a second switching converters, an extreme voltage detecting and selecting circuit, a current balance circuit and a controller. The first switching converter transforms electric power of an input power supply into a first output voltage for lighting the first LED module. The second switching converter transforms electric power of the input power supply into a second output voltage for lighting the second LED module. The current balance circuit balances the currents flowing through the first and the second LED modules. The extreme voltage detecting and selecting circuit detects the first and the second LED modules and selects to output one of detecting results. The controller controls the transforming of the first switching converter and the second switching converter to light the first and the second LED modules in response to the outputted detecting result.

Abstract translation: LED驱动电路包括第一和第二LED模块，第一和第二开关转换器，极值电压检测和选择电路，电流平衡电路和控制器。 第一开关转换器将输入电源的电力变换为第一输出电压以点亮第一LED模块。 第二开关转换器将输入电源的电力转换成用于照亮第二LED模块的第二输出电压。 电流平衡电路平衡流经第一和第二LED模块的电流。 极端电压检测和选择电路检测第一和第二LED模块，并选择输出检测结果之一。 控制器控制第一开关转换器和第二开关转换器的变换，以响应于输出的检测结果点亮第一和第二LED模块。