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。

公开(公告)号：US20120104967A1

公开(公告)日：2012-05-03

申请号：US13118557

申请日：2011-05-30

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

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

IPC: H05B37/02 ,  H03K5/04

CPC classification number: H05B33/0824 ,  H05B33/0815

Abstract: A non-linear load driving circuit and a controller for controlling a conversion circuit to drive a non-linear load are provided. The controller includes a feedback unit, a pulse width control unit, and an overshoot reduction unit. The feedback unit generates a feedback signal according to a current feedback signal that represents a load current flowing through the non-linear load. The pulse width control unit generates a control signal according to the feedback signal to control a power output of the conversion circuit. The overshoot reduction unit generates an overshoot reduction signal when the load current changes from being smaller than to being greater than a predetermined value according to the current feedback signal. The pulse width control unit receives the overshoot reduction signal and reduces the duty cycle of the control signal accordingly. Thereby, stability of feedback control is improved and damage to circuit is prevented.

Abstract translation: 提供了非线性负载驱动电路和用于控制转换电路以驱动非线性负载的控制器。 控制器包括反馈单元，脉冲宽度控制单元和过冲减少单元。 反馈单元根据表示流过非线性负载的负载电流的电流反馈信号产生反馈信号。 脉冲宽度控制单元根据反馈信号产生控制信号，以控制转换电路的功率输出。 当负载电流根据电流反馈信号从小于大于预定值变化时，过冲减少单元产生过冲减小信号。 脉冲宽度控制单元接收过冲减小信号并相应地减小控制信号的占空比。 由此，能够提高反馈控制的稳定性，防止对电路的损坏。

公开(公告)号：US08154250B2

公开(公告)日：2012-04-10

申请号：US12400375

申请日：2009-03-09

Applicant: Chung-Che Yu ,  Shian-Sung Shiu

Inventor： Chung-Che Yu ,  Shian-Sung Shiu

IPC: H02J7/00 ,  H02J3/14

CPC classification number: H02J7/0016 ,  Y10T307/484

Abstract: The present invention discloses a battery charging controller for achieving a balanced battery charge. The battery charging controller includes a voltage divider, a switch module and a balance circuit. A reference voltage generated by the voltage divide is used to determine which battery unit in a battery module has an insufficient voltage lower than the others, so that the balance circuit controls the switch module to allow a larger current to charge a lower-voltage battery than a higher-voltage battery, so as to result in substantially the same voltage for each fully charged battery of the battery module.

Abstract translation: 本发明公开了一种用于实现平衡电池充电的电池充电控制器。 电池充电控制器包括分压器，开关模块和平衡电路。 使用由分压产生的参考电压来确定电池模块中的哪个电池单元的电压低于其他电池，因此平衡电路控制开关模块以允许较大的电流对低压电池充电 高电压电池，以便为电池模块的每个充满电的电池产生基本相同的电压。

公开(公告)号：US20110291575A1

公开(公告)日：2011-12-01

申请号：US13086365

申请日：2011-04-13

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

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

IPC: H05B37/02 ,  G05F1/00

CPC classification number: H05B33/0827 ,  H05B33/0815 ,  H05B33/089 ,  Y02B20/347

Abstract: A control circuit adapted to control a power converting circuit for stabilizing an output of the power converting circuit is provided. The control circuit includes a capacitor, a charging unit, a discharging unit, a feedback control unit, and a duty-cycle adjusting unit. The charging unit has a first current source coupled to the capacitor for charging the capacitor. The discharging unit is coupled to the capacitor for discharging the capacitor. The feedback control unit controls the charging unit to charge the capacitor according to a feedback signal which represents the output of the power converting circuit. The duty-cycle adjusting unit generates a control signal and adjusts a duty cycle of the control signal according to a voltage of the capacitor.

Abstract translation: 提供一种适于控制用于稳定电力转换电路的输出的功率转换电路的控制电路。 控制电路包括电容器，充电单元，放电单元，反馈控制单元和占空比调节单元。 充电单元具有耦合到电容器的用于对电容器充电的第一电流源。 放电单元耦合到用于放电电容器的电容器。 反馈控制单元控制充电单元根据表示功率转换电路的输出的反馈信号对电容器充电。 占空比调整单元生成控制信号，根据电容器的电压来调整控制信号的占空比。