公开(公告)号：US20100149712A1

公开(公告)日：2010-06-17

申请号：US12336522

申请日：2008-12-16

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Yu-Min Shih

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Yu-Min Shih

IPC分类号： H02H3/08

CPC分类号： H02H7/1213 ,  H01H3/004 ,  H02M1/32 ,  H02M3/33515

摘要： A digital overcurrent protection device for a power supply device includes a receiving end for receiving a current sensing signal, a digital reference voltage generator for digitally generating a reference voltage, a comparator coupled between the receiving end and the digital reference voltage generator for comparing the current sense signal with the reference voltage in order to generate a comparison result, and a control unit coupled to the comparator for controlling a power switch of the power supply device according to the comparison result.

摘要翻译： 用于电源装置的数字过电流保护装置包括用于接收电流感测信号的接收端，用于数字产生参考电压的数字参考电压发生器，耦合在接收端与数字参考电压发生器之间的比较电流 具有参考电压的感测信号以产生比较结果，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装置的电源开关。

公开(公告)号：US20100289463A1

公开(公告)日：2010-11-18

申请号：US12464874

申请日：2009-05-13

申请人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Chi-Hao Wu

发明人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Chi-Hao Wu

IPC分类号： G05F1/625

CPC分类号： H02M3/33523

摘要： A primary-side feedback control device for a power converter includes a control unit, a comparator and a sample-and-hold unit. The control unit is utilized for generating a pulse signal according to a feedback signal for controlling on and off states of a switching transistor of the power converter. The comparator is coupled to an auxiliary winding of a primary side of the power converter, and is utilized for generating at least one control signal according to a voltage on the auxiliary winding. The sample-and-hold unit is coupled to the auxiliary winding, the comparator and the control unit, and is utilized for generating the feedback signal according to the voltage on the auxiliary winding and the at least one control signal.

摘要翻译： 用于功率转换器的初级侧反馈控制装置包括控制单元，比较器和采样保持单元。 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。 比较器耦合到功率转换器的初级侧的辅助绕组，并用于根据辅助绕组上的电压产生至少一个控制信号。 采样保持单元耦合到辅助绕组，比较器和控制单元，并用于根据辅助绕组上的电压和至少一个控制信号产生反馈信号。

公开(公告)号：US20090256545A1

公开(公告)日：2009-10-15

申请号：US12336537

申请日：2008-12-17

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

IPC分类号： G05F5/00

CPC分类号： H02M3/33507

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07911815B2

公开(公告)日：2011-03-22

申请号：US12346879

申请日：2008-12-31

申请人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chi-Hao Wu ,  Chia-Chieh Hung

发明人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chi-Hao Wu ,  Chia-Chieh Hung

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07872842B2

公开(公告)日：2011-01-18

申请号：US12275175

申请日：2008-11-20

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

IPC分类号： H02H7/00

CPC分类号： H02M3/33507 ,  H02M1/32

摘要： An overcurrent protection device for a power supply device includes a receiving end for receiving a current sensing signal, a compensating current unit coupled to the receiving end for compensating the current sensing signal in order to generate a current sense compensation signal, a first reference voltage generator for generating a first reference voltage, a comparator coupled between the compensating current unit and the first reference voltage generator for comparing the current sense compensation signal with the first reference voltage in order to generate a comparison result, a control unit coupled to the comparator for controlling a power switch of the power supply device according to the comparison result.

摘要翻译： 用于电源装置的过电流保护装置包括用于接收电流感测信号的接收端，耦合到接收端的补偿电流单元，用于补偿电流感测信号以产生电流感测补偿信号，第一参考电压发生器 用于产生第一参考电压的比较器，耦合在所述补偿电流单元和所述第一参考电压发生器之间的比较器，用于将所述电流感测补偿信号与所述第一参考电压进行比较，以便产生比较结果;耦合到所述比较器的控制单元， 电源装置的电源开关根据比较结果。

公开(公告)号：US20100165666A1

公开(公告)日：2010-07-01

申请号：US12346879

申请日：2008-12-31

申请人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chi-Hao Wu ,  Chia-Chieh Hung

发明人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chi-Hao Wu ,  Chia-Chieh Hung

IPC分类号： H02M3/22

CPC分类号： H02M3/33523

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08068354B2

公开(公告)日：2011-11-29

申请号：US12336537

申请日：2008-12-17

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

IPC分类号： H02M3/335

CPC分类号： H02M3/33507

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100156314A1

公开(公告)日：2010-06-24

申请号：US12318067

申请日：2008-12-22

申请人： Yen-Hui Wang ,  Chia-Chieh Hung ,  Chi-Hao Wu

发明人： Yen-Hui Wang ,  Chia-Chieh Hung ,  Chi-Hao Wu

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20100123988A1

公开(公告)日：2010-05-20

申请号：US12275175

申请日：2008-11-20

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

IPC分类号： H02H3/08

CPC分类号： H02M3/33507 ,  H02M1/32

摘要： An overcurrent protection device for a power supply device includes a receiving end for receiving a current sensing signal, a compensating current unit coupled to the receiving end for compensating the current sensing signal in order to generate a current sense compensation signal, a first reference voltage generator for generating a first reference voltage, a comparator coupled between the compensating current unit and the first reference voltage generator for comparing the current sense compensation signal with the first reference voltage in order to generate a comparison result, a control unit coupled to the comparator for controlling a power switch of the power supply device according to the comparison result.

摘要翻译： 用于电源装置的过电流保护装置包括用于接收电流感测信号的接收端，耦合到接收端的补偿电流单元，用于补偿电流感测信号以产生电流感测补偿信号，第一参考电压发生器 用于产生第一参考电压的比较器，耦合在所述补偿电流单元和所述第一参考电压发生器之间的比较器，用于将所述电流感测补偿信号与所述第一参考电压进行比较，以便产生比较结果;耦合到所述比较器的控制单元， 电源装置的电源开关根据比较结果。

公开(公告)号：US08044651B2

公开(公告)日：2011-10-25

申请号：US12331529

申请日：2008-12-10

申请人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Yu-Min Shih

发明人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Yu-Min Shih

IPC分类号： G05F1/40

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  H03K7/08 ,  Y02B70/16 ,  Y10T307/50

摘要： 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.

摘要翻译： 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。