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    • 1. 发明授权
    • Resonant converting circuit and resonant controller
    • 谐振转换电路和谐振控制器
    • US08971059B2
    • 2015-03-03
    • US13447285
    • 2012-04-16
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • H02M3/335H02H7/10H02M1/36H02M3/337H02M1/00
    • H02H7/10H02M1/36H02M3/335H02M3/3376H02M2001/0058Y02B70/1433Y02B70/1491Y02P80/112
    • 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.
    • 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. 发明授权
    • Resonant converting circuit and resonant controller
    • 谐振转换电路和谐振控制器
    • US08824176B2
    • 2014-09-02
    • US13412636
    • 2012-03-06
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • H02M1/32H02M3/337H02M1/00
    • H02M3/3376H02M1/32H02M2001/0058Y02B70/1433Y02B70/1441Y02B70/1491Y02P80/112
    • The resonant converting circuit comprises a resonant circuit, a current detecting circuit and the resonant controller. The resonant controller controls a power conversion of the resonant circuit for converting an input voltage into an output voltage and the resonant controller comprises an over current judgment unit and an over current protection unit. The over current judgment unit determines whether the resonant current is higher than an over current value according to a current detecting signal generated by the current detecting circuit. The over current protection unit generates a protection signal in response to a determined result of the over current judgment unit and an indication signal indicative of an operating state of the resonant controller. The resonant controller executes a corresponding protecting process in response to the protection signal.
    • 谐振转换电路包括谐振电路,电流检测电路和谐振控制器。 谐振控制器控制用于将输入电压转换为输出电压的谐振电路的功率转换,并且谐振控制器包括过电流判断单元和过电流保护单元。 过电流判断单元根据由电流检测电路产生的电流检测信号来判定谐振电流是否高于过电流值。 过电流保护单元响应于过电流判断单元的确定结果和表示谐振控制器的工作状态的指示信号产生保护信号。 谐振控制器响应于保护信号执行相应的保护处理。
    • 3. 发明申请
    • Resonant Converting Circuit and Resonant Controller
    • 谐振转换电路和谐振控制器
    • US20130121037A1
    • 2013-05-16
    • US13447285
    • 2012-04-16
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • H02M3/335
    • H02H7/10H02M1/36H02M3/335H02M3/3376H02M2001/0058Y02B70/1433Y02B70/1491Y02P80/112
    • 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.
    • 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。
    • 4. 发明申请
    • RESONANT CONVERTING CIRCUIT AND RESONANT CONTROLLER
    • 谐振转换电路和谐振器
    • US20130121036A1
    • 2013-05-16
    • US13412636
    • 2012-03-06
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • Ke PengLi-Min LeeChung-Che YuShian-Sung Shiu
    • H02M3/335
    • H02M3/3376H02M1/32H02M2001/0058Y02B70/1433Y02B70/1441Y02B70/1491Y02P80/112
    • The resonant converting circuit comprises a resonant circuit, a current detecting circuit and the resonant controller. The resonant controller controls a power conversion of the resonant circuit for converting an input voltage into an output voltage and the resonant controller comprises an over current judgment unit and an over current protection unit. The over current judgment unit determines whether the resonant current is higher than an over current value according to a current detecting signal generated by the current detecting circuit. The over current protection unit generates a protection signal in response to a determined result of the over current judgment unit and an indication signal indicative of an operating state of the resonant controller. The resonant controller executes a corresponding protecting process in response to the protection signal.
    • 谐振转换电路包括谐振电路,电流检测电路和谐振控制器。 谐振控制器控制用于将输入电压转换为输出电压的谐振电路的功率转换,并且谐振控制器包括过电流判断单元和过电流保护单元。 过电流判断单元根据由电流检测电路产生的电流检测信号来判定谐振电流是否高于过电流值。 过电流保护单元响应于过电流判断单元的确定结果和表示谐振控制器的工作状态的指示信号产生保护信号。 谐振控制器响应于保护信号执行相应的保护处理。
    • 6. 发明申请
    • POWER CONVERTING CONTROLLER AND LIGHT-EMITTING DIODE DRIVING CIRCUIT
    • 电源转换控制器和发光二极管驱动电路
    • US20120104968A1
    • 2012-05-03
    • US13192466
    • 2011-07-28
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • H05B37/02H02M3/335
    • H05B33/0815H05B33/0824Y02B20/341
    • A power converting controller and an LED driving circuit are provided. The power converting controller controls a converting circuit, which converts an input power source into an appropriate power source to drive a load. The power converting controller includes a feedback control unit, an open-circuit judging unit and a protection unit. The feedback control unit controls the converting circuit according to a feedback signal representing the status of the load. As the open-circuit judging unit has judged that the load is continuously in an open-circuit status for a predetermined time length, the open-circuit judging unit generates an open-circuit protection signal. The protection unit is coupled to the feedback control unit and the open-circuit judging unit so as to generate a protection signal as receiving the open-circuit protection signal and thereby the feedback control unit enters a latch status to stop controlling the converting circuit.
    • 提供电力转换控制器和LED驱动电路。 电力转换控制器控制转换电路,其将输入电源转换成适当的电源以驱动负载。 电力转换控制器包括反馈控制单元,开路判断单元和保护单元。 反馈控制单元根据表示负载状态的反馈信号控制转换电路。 由于开路判断部判断负载连续处于规定时间长度的开路状态,所以开路判断部生成开路保护信号。 保护单元耦合到反馈控制单元和开路判断单元,以便产生保护信号作为接收开路保护信号,由此反馈控制单元进入锁存状态以停止控制转换电路。
    • 8. 发明授权
    • Power converting controller and light-emitting diode driving circuit
    • 电力转换控制器和发光二极管驱动电路
    • US08618748B2
    • 2013-12-31
    • US13192466
    • 2011-07-28
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • Shian-Sung ShiuChung-Che YuLi-Min LeeKe Peng
    • H05B37/02G05F1/00
    • H05B33/0815H05B33/0824Y02B20/341
    • A power converting controller and an LED driving circuit are provided. The power converting controller controls a converting circuit, which converts an input power source into an appropriate power source to drive a load. The power converting controller includes a feedback control unit, an open-circuit judging unit and a protection unit. The feedback control unit controls the converting circuit according to a feedback signal representing the status of the load. As the open-circuit judging unit has judged that the load is continuously in an open-circuit status for a predetermined time length, the open-circuit judging unit generates an open-circuit protection signal. The protection unit is coupled to the feedback control unit and the open-circuit judging unit so as to generate a protection signal as receiving the open-circuit protection signal and thereby the feedback control unit enters a latch status to stop controlling the converting circuit.
    • 提供电力转换控制器和LED驱动电路。 电力转换控制器控制转换电路,其将输入电源转换成适当的电源以驱动负载。 电力转换控制器包括反馈控制单元,开路判断单元和保护单元。 反馈控制单元根据表示负载状态的反馈信号控制转换电路。 由于开路判断部判断负载连续处于规定时间长度的开路状态,所以开路判断部生成开路保护信号。 保护单元耦合到反馈控制单元和开路判断单元,以便产生保护信号作为接收开路保护信号,由此反馈控制单元进入锁存状态以停止控制转换电路。
    • 9. 发明申请
    • MULTI-PHASE DC-DC CONVERTER AND METHOD OF CONTROLLING THE SAME
    • 多相DC-DC转换器及其控制方法
    • US20130169249A1
    • 2013-07-04
    • US13449321
    • 2012-04-18
    • Li-Min LeeQuan GanChung-Che YuShian-Sung Shiu
    • Li-Min LeeQuan GanChung-Che YuShian-Sung Shiu
    • G05F1/00
    • H02M3/1584
    • 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.
    • 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。
    • 10. 发明授权
    • Power converter and pulse width modulation signal controlling apparatus thereof
    • 功率转换器及其脉宽调制信号控制装置
    • US08421511B2
    • 2013-04-16
    • US12909838
    • 2010-10-22
    • Li-Min LeeShian-Sung ShiuChung-Che YuJi-Ming Chen
    • Li-Min LeeShian-Sung ShiuChung-Che YuJi-Ming Chen
    • H03K7/08
    • H02M1/08
    • 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.
    • 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。