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    • 1. 发明授权
    • Primary-side feedback control device and related method for a power converter
    • 一次侧反馈控制装置及其相关方法
    • US07911815B2
    • 2011-03-22
    • US12346879
    • 2008-12-31
    • Yen-Hui WangChin-Yen LinChi-Hao WuChia-Chieh Hung
    • Yen-Hui WangChin-Yen LinChi-Hao WuChia-Chieh Hung
    • H02M3/335
    • H02M3/33523
    • A primary-side feedback control device for a power converter includes a control unit for generating a pulse signal according to a feedback signal for controlling on and off states of a switching transistor of the power converter, a comparator coupled to an auxiliary winding of a primary side of the power converter for generating at least one control signal according to a voltage on the auxiliary winding and a reference voltage, a sample-and-hold unit coupled to the auxiliary winding, the comparator, and the control unit for generating the feedback signal according to the voltage on the auxiliary winding and the at least one control signal, and a voltage generator coupled to the control unit, the comparator, and the sample-and-hold unit for generating the reference voltage according to the feedback signal.
    • 用于功率转换器的初级侧反馈控制装置包括:控制单元,用于根据用于控制功率转换器的开关晶体管的导通和截止状态的反馈信号产生脉冲信号;比较器,耦合到初级侧的辅助绕组; 用于根据辅助绕组上的电压和参考电压产生至少一个控制信号的电源转换器侧,耦合到辅助绕组的采样和保持单元,比较器和控制单元,用于产生反馈信号 根据辅助绕组上的电压和至少一个控制信号,以及耦合到控制单元,比较器和采样保持单元的电压发生器,用于根据反馈信号产生参考电压。
    • 5. 发明申请
    • Current-level Decision Device for a Power Supply Device and Related Power Supply Device
    • 电源装置及相关电源装置的电流决定装置
    • US20090256533A1
    • 2009-10-15
    • US12338907
    • 2008-12-18
    • Chi-Hao WuChia-Chieh Hung
    • Chi-Hao WuChia-Chieh Hung
    • G05F1/613
    • H02M3/33507
    • An current-level decision device for a power supply device includes a reception end for receiving a current sense signal, a reference voltage generator for generating a first reference voltage, a reference voltage correction unit coupled to the reference voltage generator and the reception end for adjusting the reference voltage according to variation of the current sense signal, so as to generate a second reference voltage, a comparator coupled to the reception end and the reference voltage correction unit for comparing the current sense signal and the second reference voltage to generate a comparison result, and a control unit coupled to the comparator for controlling a switch transistor of the power supply according to the comparison result.
    • 用于电源装置的电流电平判定装置包括用于接收电流感测信号的接收端,用于产生第一参考电压的参考电压发生器,耦合到参考电压发生器的参考电压校正单元和用于调整的接收端 所述参考电压根据所述电流检测信号的变化,以产生第二参考电压,耦合到所述接收端的比较器和所述参考电压校正单元,用于比较所述电流检测信号和所述第二参考电压以产生比较结果 以及耦合到比较器的控制单元,用于根据比较结果控制电源的开关晶体管。
    • 7. 发明申请
    • PRIMARY-SIDE FEEDBACK CONTROL DEVICE AND RELATED METHOD FOR A POWER CONVERTER
    • 主侧反馈控制装置及其功率转换器的相关方法
    • US20100165666A1
    • 2010-07-01
    • US12346879
    • 2008-12-31
    • Yen-Hui WangChin-Yen LinChi-Hao WuChia-Chieh Hung
    • Yen-Hui WangChin-Yen LinChi-Hao WuChia-Chieh Hung
    • H02M3/22
    • H02M3/33523
    • A primary-side feedback control device for a power converter includes a control unit for generating a pulse signal according to a feedback signal for controlling on and off states of a switching transistor of the power converter, a comparator coupled to an auxiliary winding of a primary side of the power converter for generating at least one control signal according to a voltage on the auxiliary winding and a reference voltage, a sample-and-hold unit coupled to the auxiliary winding, the comparator, and the control unit for generating the feedback signal according to the voltage on the auxiliary winding and the at least one control signal, and a voltage generator coupled to the control unit, the comparator, and the sample-and-hold unit for generating the reference voltage according to the feedback signal.
    • 用于功率转换器的初级侧反馈控制装置包括:控制单元,用于根据用于控制功率转换器的开关晶体管的导通和截止状态的反馈信号产生脉冲信号;比较器,耦合到初级侧的辅助绕组; 用于根据辅助绕组上的电压和参考电压产生至少一个控制信号的电源转换器侧,耦合到辅助绕组的采样和保持单元,比较器和控制单元,用于产生反馈信号 根据辅助绕组上的电压和至少一个控制信号,以及耦合到控制单元,比较器和采样保持单元的电压发生器,用于根据反馈信号产生参考电压。
    • 8. 发明授权
    • Current-level controlling device for a power supply device and related power supply device
    • 电源装置及相关电源装置的电流控制装置
    • US08068354B2
    • 2011-11-29
    • US12336537
    • 2008-12-17
    • Yen-Hui WangChi-Hao WuChia-Chieh HungChin-Yen Lin
    • Yen-Hui WangChi-Hao WuChia-Chieh HungChin-Yen Lin
    • H02M3/335
    • H02M3/33507
    • A current-level controlling device for a power supply includes a reception end for receiving a current sense signal, a reference voltage generator for generating a reference voltage, an adaptive reference voltage generator, coupled to the reference voltage generator and the reception end, for adjusting the reference voltage according to variation of peak values of the current sense signal, so as to generate an adaptive reference voltage, a comparator, coupled to the reception end and the adaptive reference voltage generator, for comparing the current sense signal and the adaptive reference voltage, to generate a comparison result, and a control unit, coupled to the comparator, for controlling a switch transistor of the power supply according to the comparison result.
    • 用于电源的电流电平控制装置包括用于接收电流感测信号的接收端,用于产生参考电压的参考电压发生器,耦合到参考电压发生器和接收端的自适应参考电压发生器,用于调整 根据电流检测信号的峰值的变化产生参考电压,以产生耦合到接收端和自适应参考电压发生器的自适应参考电压,比较器,用于比较电流检测信号和自适应参考电压 ,以产生比较结果,以及耦合到比较器的控制单元,用于根据比较结果控制电源的开关晶体管。
    • 9. 发明申请
    • Light source driver circuit
    • 光源驱动电路
    • US20100156314A1
    • 2010-06-24
    • US12318067
    • 2008-12-22
    • Yen-Hui WangChia-Chieh HungChi-Hao Wu
    • Yen-Hui WangChia-Chieh HungChi-Hao Wu
    • H05B37/00
    • H05B33/0815Y02B20/346
    • A light source driver circuit includes a voltage input terminal, a light source module, a transformer module, a voltage regulator module, a first switch and a control module. The voltage input terminal receives an input voltage. The light source module includes a plurality of light-emitting units. The transformer module is electrically connected to the light-emitting units. The voltage regulator module connected to the voltage input terminal provides a stable output voltage. The first switch electrically connected to the transformer module and the voltage regulator module receives the stable output voltage to determine whether the first switch is to be turned on or off. The control module is electrically connected to the first switch. The control module and the first switch are controlled so that the light source module the input voltage can be drived by the input voltage.
    • 光源驱动电路包括电压输入端子,光源模块,变压器模块,电压调节器模块,第一开关和控制模块。 电压输入端子接收输入电压。 光源模块包括多个发光单元。 变压器模块电连接到发光单元。 连接到电压输入端子的稳压器模块提供稳定的输出电压。 电连接到变压器模块和电压调节器模块的第一开关接收稳定的输出电压以确定第一开关是打开还是关闭。 控制模块电连接到第一开关。 控制模块和第一开关被控制,使得光源模块的输入电压可以被输入电压驱动。