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1. 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。

2. 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。

3. 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。

4. 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。

5. 发明申请

US20120268088A1 DC TO DC BUCK CONVERTING CONTROLLER 审中-公开
标题翻译：直流直流转矩控制器
公开(公告)号：US20120268088A1
公开(公告)日：2012-10-25
申请号：US13284974
申请日：2011-10-30
申请人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Chao Shao
发明人： Li-Min Lee , Chung-Che Yu , Shian-Sung Shiu , Chao Shao
IPC分类号： G05F1/46
CPC分类号： H02M3/1588 , H02M2001/0022 , H02M2001/0025 , Y02B70/1466
摘要： 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.
摘要翻译： 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。

6. 发明申请

US20120268011A1 LED DRIVING CIRCUIT 有权
标题翻译： LED驱动电路
公开(公告)号：US20120268011A1
公开(公告)日：2012-10-25
申请号：US13244653
申请日：2011-09-25
申请人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Xi Tu , Ying Wang
发明人： Shian-Sung Shiu , Li-Min Lee , Chung-Che Yu , Xi Tu , Ying Wang
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0827
摘要： 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.
摘要翻译： 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。

7. 发明申请

US20120104967A1 NON-LINEAR LOAD DRIVING CIRCUIT AND CONTROLLER 有权
标题翻译：非线性负载驱动电路和控制器
公开(公告)号：US20120104967A1
公开(公告)日：2012-05-03
申请号：US13118557
申请日：2011-05-30
申请人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Xi Tu
发明人： Li-Min Lee , Shian-Sung Shiu , Chung-Che Yu , Xi Tu
IPC分类号： H05B37/02 , H03K5/04
CPC分类号： H05B33/0824 , H05B33/0815
摘要： 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.
摘要翻译：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。

8. 发明申请

US20110291575A1 LED DRIVING CIRCUIT AND CONTROL CIRCUIT 有权
标题翻译： LED驱动电路和控制电路
公开(公告)号：US20110291575A1
公开(公告)日：2011-12-01
申请号：US13086365
申请日：2011-04-13
申请人： Shian-Sung Shiu , Chung-Che Yu , Li-Min Lee
发明人： Shian-Sung Shiu , Chung-Che Yu , Li-Min Lee
IPC分类号： H05B37/02 , G05F1/00
CPC分类号： H05B33/0827 , H05B33/0815 , H05B33/089 , Y02B20/347
摘要： 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.
摘要翻译：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。

9. 发明申请

US20110279103A1 POWER CONVERTER AND PULSE WIDTH MODULATION SIGNAL CONTROLLING APPARATUS THEREOF 有权
标题翻译：功率转换器和脉宽调制信号控制装置
公开(公告)号：US20110279103A1
公开(公告)日：2011-11-17
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： G05F1/10 , H03K3/01
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. 发明申请

US20110279061A1 FEEDBACK CONTROL CIRCUIT AND POWER CONVERTING CIRCUIT 有权
标题翻译：反馈控制电路和功率转换电路
公开(公告)号：US20110279061A1
公开(公告)日：2011-11-17
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： H05B41/36
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，以便减小误差放大信号的时间和振荡幅度。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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