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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
    • 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。
    • 6. 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. 发明授权
    • Efficient PWM controller
    • 高效的PWM控制器
    • US08044651B2
    • 2011-10-25
    • US12331529
    • 2008-12-10
    • Yen-Hui WangChin-Yen LinChia-Chieh HungYu-Min Shih
    • Yen-Hui WangChin-Yen LinChia-Chieh HungYu-Min Shih
    • G05F1/40
    • H02M3/33507H02M2001/0032H03K7/08Y02B70/16Y10T307/50
    • This patent discloses an efficient PWM controller for generating a pulse signal in response to a feedback signal, capable of operating in a normal mode or a green mode, comprising: a capacitor for building a saw-tooth signal by current integration, the saw-tooth signal having a ramp-up period and a ramp-down period; a first composite current source for the ramp-up period, detachable into a first constant current source and a first variable current source; and a second composite current source for the ramp-down period, detachable into a second constant current source and a second variable current source; wherein, the first variable current source is attached to the first constant current source and the second variable current source is attached to the second constant current source respectively in the green mode.
    • 该专利公开了一种有效的PWM控制器,用于响应于能够以正常模式或绿色模式操作的反馈信号产生脉冲信号,包括:用于通过电流积分建立锯齿信号的电容器,锯齿 信号具有斜坡上升周期和斜坡下降周期; 用于所述斜坡上升周期的第一复合电流源,可分离成第一恒定电流源和第一可变电流源; 以及用于所述斜坡下降周期的第二复合电流源,可分离成第二恒定电流源和第二可变电流源; 其中,所述第一可变电流源附接到所述第一恒定电流源,并且所述第二可变电流源分别以绿色模式附接到所述第二恒定电流源。
    • 10. 发明申请
    • EFFICIENT PWM CONTROLLER
    • 有效的PWM控制器
    • US20100141033A1
    • 2010-06-10
    • US12331529
    • 2008-12-10
    • Yen-Hui WangChin-Yen LinChia-Chieh HungYu-Min Shih
    • Yen-Hui WangChin-Yen LinChia-Chieh HungYu-Min Shih
    • H02J1/04
    • H02M3/33507H02M2001/0032H03K7/08Y02B70/16Y10T307/50
    • This patent discloses an efficient PWM controller for generating a pulse signal in response to a feedback signal, capable of operating in a normal mode or a green mode, comprising: a capacitor for building a saw-tooth signal by current integration, the saw-tooth signal having a ramp-up period and a ramp-down period; a first composite current source for the ramp-up period, detachable into a first constant current source and a first variable current source; and a second composite current source for the ramp-down period, detachable into a second constant current source and a second variable current source; wherein, the first variable current source is attached to the first constant current source and the second variable current source is attached to the second constant current source respectively in the green mode.
    • 该专利公开了一种有效的PWM控制器,用于响应于能够以正常模式或绿色模式操作的反馈信号产生脉冲信号,包括:用于通过电流积分建立锯齿信号的电容器,锯齿 信号具有斜坡上升周期和斜坡下降周期; 用于所述斜坡上升周期的第一复合电流源,可分离成第一恒定电流源和第一可变电流源; 以及用于所述斜坡下降周期的第二复合电流源,可分离成第二恒定电流源和第二可变电流源; 其中,所述第一可变电流源附接到所述第一恒定电流源,并且所述第二可变电流源分别以绿色模式附接到所述第二恒定电流源。