公开(公告)号：US07872842B2

公开(公告)日：2011-01-18

申请号：US12275175

申请日：2008-11-20

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

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

IPC: H02H7/00

CPC classification number: H02M3/33507 ,  H02M1/32

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02M3/22

CPC classification number: H02M3/33523

Abstract: 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.

Abstract translation: 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：US08751023B2

公开(公告)日：2014-06-10

申请号：US12543588

申请日：2009-08-19

Applicant: Chi-Chang Lu ,  Jin-Hau Kuo ,  Chi-Hao Wu ,  Chia-Hao Chang ,  Hsiao-Wei Huang

Inventor： Chi-Chang Lu ,  Jin-Hau Kuo ,  Chi-Hao Wu ,  Chia-Hao Chang ,  Hsiao-Wei Huang

IPC: G06F17/00 ,  G06F3/00 ,  G06F3/14 ,  H04N5/783

CPC classification number: G06F17/30752 ,  G06F3/0481 ,  G06F17/3074 ,  G06F17/30749 ,  G11B19/022 ,  G11B27/105 ,  G11B27/34

Abstract: An audio playback positioning method. A processor retrieves audio data from a memory, divides a progress bar showing playback time of the audio data into segments, utilizes a length of a progress bar segment as a unit to perform playback skipping on the audio data, and retrieves an audio data segment through the skipping. The processor further divides a progress bar segment corresponding to the retrieved audio data segment into sub-segments in response to input operations, and utilizes the length of a sub-segment as a unit to perform playback skipping on the retrieved audio data segment to retrieve and perform playback operation on a target position thereon.

Abstract translation: 音频播放定位方法。 处理器从存储器检索音频数据，将显示音频数据的播放时间的进度条划分成段，利用进度条段的长度作为单位进行播放，跳过音频数据，并且通过 跳过 所述处理器还响应于输入操作，将对应于检索到的音频数据段的进度条段划分为子段，并且利用子段的长度作为单元来执行回放跳过所检索的音频数据段以检索和 在其上的目标位置执行播放操作。

公开(公告)号：US08068354B2

公开(公告)日：2011-11-29

申请号：US12336537

申请日：2008-12-17

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

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

IPC: H02M3/335

CPC classification number: H02M3/33507

Abstract: 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.

Abstract translation: 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：US07983062B2

公开(公告)日：2011-07-19

申请号：US12406145

申请日：2009-03-18

Applicant: Yen-Hui Wang ,  Chia-Chien Hung ,  Chi-Hao Wu

Inventor： Yen-Hui Wang ,  Chia-Chien Hung ,  Chi-Hao Wu

IPC: H02H7/122

CPC classification number: H02M3/33507

Abstract: The present invention discloses a minimum on-time reduction method for a switching power conversion, comprising the steps of: generating a first reset signal and an over-supply pulse signal according to a current sensing signal and a reference signal; generating a blanking signal according to a count number of the over-supply pulse signal; and generating a second reset signal by performing Logic-AND operation on the first reset signal and the blanking signal. Furthermore, the present invention also provides a minimum on-time reduction apparatus for a power conversion, and a system using the minimum on-time reduction apparatus for a power conversion.

Abstract translation: 本发明公开了一种开关电源转换的最小导通时间简化方法，包括以下步骤：根据电流检测信号和参考信号产生第一复位信号和过供电脉冲信号; 根据过供电脉冲信号的计数数生成消隐信号; 以及通过对第一复位信号和消隐信号执行逻辑与运算来产生第二复位信号。 此外，本发明还提供了一种用于电力转换的最小接通时间减少装置，以及使用最小导通时间减少装置进行电力转换的系统。

公开(公告)号：US20100156314A1

公开(公告)日：2010-06-24

申请号：US12318067

申请日：2008-12-22

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

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

IPC: H05B37/00

CPC classification number: H05B33/0815 ,  Y02B20/346

Abstract: 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.

Abstract translation: 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

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

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

IPC: H02H3/08

CPC classification number: H02M3/33507 ,  H02M1/32

Abstract: 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.

Abstract translation: 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：US20100117699A1

公开(公告)日：2010-05-13

申请号：US12268450

申请日：2008-11-11

Applicant: Chi-Hao Wu ,  Wei-Ching Lee

Inventor： Chi-Hao Wu ,  Wei-Ching Lee

IPC: H03K5/04

CPC classification number: H03K5/05 ,  H02M1/44 ,  H03K7/08

Abstract: A pulse width modulation controller with frequency jitter functionality includes an oscillator and a threshold voltage generator. The oscillator is utilized for generating a switching frequency signal according to an upper threshold voltage and a lower threshold voltage. The threshold voltage generator is coupled to the oscillator, and is utilized for generating the upper threshold voltage and the lower threshold voltage and modulating at least one of the upper threshold voltage and the lower threshold voltage to vary over time for jittering the switching frequency signal.

Abstract translation: 具有频率抖动功能的脉宽调制控制器包括振荡器和阈值电压发生器。 振荡器用于根据上阈值电压和较低阈值电压产生开关频率信号。 阈值电压发生器耦合到振荡器，并且用于产生上阈值电压和下阈值电压，并且调制上阈值电压和下阈值电压中的至少一个随时间变化以使开关频率信号抖动。

公开(公告)号：US20090140794A1

公开(公告)日：2009-06-04

申请号：US11947348

申请日：2007-11-29

Applicant: Chi-Hao Wu

Inventor： Chi-Hao Wu

IPC: G05F1/575

CPC classification number: H02M3/07 ,  H02M2001/0045

Abstract: The present invention discloses a constant-current charge pump, wherein a current detection circuit and a regulation circuit are arranged in the output of a pump circuit and used to control the current output by the pump circuit. When the load varies, the current variation is detected, and the regulation circuit pumps and regulates the current output by the pump circuit to stabilize the output current. Thereby, the output current will vary very slightly for different loads and input voltages.

Abstract translation: 本发明公开了一种恒流电荷泵，其中电流检测电路和调节电路布置在泵电路的输出端，用于控制泵电路的电流输出。 当负载变化时，检测到电流变化，并且调节电路泵浦和调节泵电路的电流输出以稳定输出电流。 因此，对于不同的负载和输入电压，输出电流将变化很小。