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    • 1. 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。
    • 2. 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。
    • 3. 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。
    • 4. 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。
    • 5. 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。
    • 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. 发明授权
    • Controller and converting controller with multi-function pin
    • 控制器和转换控制器与多功能引脚
    • US09024611B2
    • 2015-05-05
    • US13585811
    • 2012-08-14
    • Li-Min LeeQuan GanShian-Sung ShiuChung-Che Yu
    • Li-Min LeeQuan GanShian-Sung ShiuChung-Che Yu
    • G05F1/10H02M3/156H02M1/32H01L21/00H02H3/10H02H7/122H02M3/158
    • H02M3/156H01L21/00H02H3/10H02H7/1222H02H7/1227H02M1/32H02M3/158
    • A controller with a multi-function pin, adapted to control a converting circuit according to a control signal for converting an input voltage into an output voltage, is disclosed. The controller has the multi-function pin, an enable unit, an over-current detecting unit and a logic control unit. The enable unit is coupled to the multi-function pin for receiving an enable signal and activates the controller in response to the enable signal. The over-current detecting is coupled to the multi-function pin and determines an over-current value according to an over-current set resistance coupled between the multi-function pin and a voltage source. The over-current detecting unit generates an over-current protection signal according to the over-current value and a current flowing through the converting circuit. The logic control unit determines whether executing an over-current protection according to the over-current protection signal.
    • 公开了一种具有多功能引脚的控制器,其适于根据用于将输入电压转换为输出电压的控制信号来控制转换电路。 控制器具有多功能引脚,使能单元,过流检测单元和逻辑控制单元。 使能单元耦合到多功能引脚,用于接收使能信号,并响应于使能信号激活控制器。 过电流检测耦合到多功能引脚,并根据耦合在多功能引脚和电压源之间的过电流设定电阻确定过电流值。 过流检测单元根据过电流值和流过转换电路的电流产生过电流保护信号。 逻辑控制单元根据过电流保护信号判定是否执行过电流保护。
    • 10. 发明授权
    • Non-linear load driving circuit and controller
    • 非线性负载驱动电路和控制器
    • US08558483B2
    • 2013-10-15
    • US13118557
    • 2011-05-30
    • Li-Min LeeShian-Sung ShiuChung-Che YuXi Tu
    • Li-Min LeeShian-Sung ShiuChung-Che YuXi Tu
    • H05B37/02
    • H05B33/0824H05B33/0815
    • 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.
    • 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。