公开(公告)号：US07772782B2

公开(公告)日：2010-08-10

申请号：US11951293

申请日：2007-12-05

Applicant: Yi-Shan Chu ,  Hsing-Kuo Chao

Inventor： Yi-Shan Chu ,  Hsing-Kuo Chao

IPC: H05B41/24

CPC classification number: H05B33/0815 ,  Y02B20/348

Abstract: A light emitting diode (LED) driving device includes a power factor correction (PFC) circuit, a bridge switch circuit, a resonant circuit, a transformer and a feedback circuit. The PFC circuit adjusts an output signal thereof based on a feedback signal. The bridge switch circuit transforms the output signal of the PFC circuit into a pulse signal. The resonant circuit resonates and outputs a sinusoidal signal to a primary-side of the transformer based on the pulse signal. The feedback circuit outputs the feedback signal to the PFC circuit in response to a primary-side current of the transformer. Therefore, an output current of the LED driving device is adjusted through modulating the feedback circuit.

Abstract translation: 发光二极管（LED）驱动装置包括功率因数校正（PFC）电路，桥式开关电路，谐振电路，变压器和反馈电路。 PFC电路基于反馈信号调整其输出信号。 桥式开关电路将PFC电路的输出信号变换为脉冲信号。 谐振电路基于脉冲信号谐振并将正弦信号输出到变压器的初级侧。 反馈电路响应于变压器的初级侧电流将反馈信号输出到PFC电路。 因此，通过调制反馈电路来调节LED驱动装置的输出电流。

公开(公告)号：US20100124084A1

公开(公告)日：2010-05-20

申请号：US12272807

申请日：2008-11-18

Applicant: Yuan-Wen Chang ,  Chun-Teh Chen ,  Ren-Yi Chen ,  Yi-Shan Chu

Inventor： Yuan-Wen Chang ,  Chun-Teh Chen ,  Ren-Yi Chen ,  Yi-Shan Chu

IPC: H02M7/44

CPC classification number: H02M1/32 ,  H02M3/33507

Abstract: A control circuit for use in a power converter has a multi-function terminal, a current comparator circuit, and an under-voltage detection circuit. The current comparator circuit compares current flowing through a power switch of the power converter with a reference value through the multi-function terminal when the power switch is on, and turns the power switch off when the current reaches the reference value. The under-voltage detection circuit determines whether an input voltage of the power converter is less than a predetermined value through the multi-function terminal when the power switch is turned off.

Abstract translation: 用于功率转换器的控制电路具有多功能端子，电流比较器电路和欠压检测电路。 当电流开关打开时，电流比较器电路通过多功能端子将电源转换器电源开关的电流与参考值进行比较，当电流达到参考值时，电流关断。 当电源开关断开时，欠压检测电路通过多功能端子来确定功率转换器的输入电压是否小于预定值。

公开(公告)号：US20070002661A1

公开(公告)日：2007-01-04

申请号：US11207789

申请日：2005-08-22

Applicant: Yi-Shan Chu ,  Ju-Lin Chia ,  Da-Chun Wei

Inventor： Yi-Shan Chu ,  Ju-Lin Chia ,  Da-Chun Wei

IPC: G11C5/14

CPC classification number: G11C5/14 ,  G11C5/04

Abstract: A protection circuit of the memory module and the method thereof is provided. The protection circuit comprises: a first voltage comparing unit, which compares a reference voltage signal with a voltage level signal to output a first driving signal; a transistor switch, which is connected among the output terminal of the first voltage comparing unit and the input terminal of the second voltage comparing unit and a power end, wherein the voltage level signal and the threshold voltage signal is compared by the second voltage comparing unit so as to output a second driving signal to a logical algorithm unit, and a logical algorithm is conducted between the second driving signal and system enable signal to output a third driving signal; and a soft start enable unit for receiving the third driving signal so as to enable a soft start process.

Abstract translation: 提供了存储器模块的保护电路及其方法。 保护电路包括：第一电压比较单元，其将参考电压信号与电压电平信号进行比较以输出第一驱动信号; 连接在第一电压比较单元的输出端子和第二电压比较单元的输入端子与功率端之间的晶体管开关，其中电压电平信号和阈值电压信号由第二电压比较单元 以将第二驱动信号输出到逻辑算法单元，并且在第二驱动信号和系统使能信号之间进行逻辑算法以输出第三驱动信号; 以及软启动使能单元，用于接收第三驱动信号，以便能够进行软启动处理。

公开(公告)号：US08120931B2

公开(公告)日：2012-02-21

申请号：US12272807

申请日：2008-11-18

Applicant: Yuan-Wen Chang ,  Chun-Teh Chen ,  Ren-Yi Chen ,  Yi-Shan Chu

Inventor： Yuan-Wen Chang ,  Chun-Teh Chen ,  Ren-Yi Chen ,  Yi-Shan Chu

IPC: H02M3/335

CPC classification number: H02M1/32 ,  H02M3/33507

Abstract: A control circuit for use in a power converter has a multi-function terminal, a current comparator circuit, and an under-voltage detection circuit. The current comparator circuit compares current flowing through a power switch of the power converter with a reference value through the multi-function terminal when the power switch is on, and turns the power switch off when the current reaches the reference value. The under-voltage detection circuit determines whether an input voltage of the power converter is less than a predetermined value through the multi-function terminal when the power switch is turned off.

Abstract translation: 用于功率转换器的控制电路具有多功能端子，电流比较器电路和欠压检测电路。 当电流开关打开时，电流比较器电路通过多功能端子将电源转换器电源开关的电流与参考值进行比较，当电流达到参考值时，电流关断。 当电源开关断开时，欠压检测电路通过多功能端子来确定功率转换器的输入电压是否小于预定值。

公开(公告)号：US07330361B1

公开(公告)日：2008-02-12

申请号：US11535074

申请日：2006-09-26

Applicant: Yi-Shan Chu

Inventor： Yi-Shan Chu

IPC: H02M3/335 ,  H02M7/515

CPC classification number: H02M3/33507 ,  H02J7/345

Abstract: Disclosed is a capacitor charging module, comprises: a power switch; a power delivery device controlled by the power switch, for providing a charging current to the output capacitor according to a voltage source; a voltage divider for providing a feedback voltage according to the voltage on the output capacitor; a control circuit, for controlling on/off operation of the power switch according to the feedback voltage value, wherein the control circuit turns off the power switch when the voltage level on the output capacitor is at or above the pre-determined value; a first rectifier component, for preventing the feedback voltage being a negative voltage during on periods of the power switch; and a second rectifier component, for preventing an leakage current flowing from the output capacitor to the power delivery device.

Abstract translation: 公开了一种电容充电模块，包括：电源开关; 由所述电源开关控制的供电装置，用于根据电压源向所述输出电容器提供充电电流; 分压器，用于根据输出电容器上的电压提供反馈电压; 控制电路，用于根据反馈电压值控制电源开关的接通/断开操作，其中当输出电容器上的电压电平处于或高于预定值时，控制电路关闭电源开关; 第一整流器部件，用于在所述电源开关的接通周期期间防止所述反馈电压为负电压; 以及第二整流器组件，用于防止从输出电容器流向电力输送装置的漏电流。

公开(公告)号：US07154801B1

公开(公告)日：2006-12-26

申请号：US11207789

申请日：2005-08-22

Applicant: Yi-Shan Chu ,  Ju-Lin Chia ,  Da-Chun Wei

Inventor： Yi-Shan Chu ,  Ju-Lin Chia ,  Da-Chun Wei

IPC: G11C5/14

CPC classification number: G11C5/14 ,  G11C5/04

Abstract: A protection circuit of the memory module and method thereof are provided. The protection circuit includes: a first voltage comparing unit, which compares a reference voltage signal with a voltage level signal to output a first driving signal; a transistor switch, which is connected among the output terminal of the first voltage comparing unit and the input terminal of the second voltage comparing unit and a power end, wherein the voltage level signal and the threshold voltage signal is compared by the second voltage comparing unit so as to output a second driving signal to a logical algorithm unit, and a logical algorithm is conducted between the second driving signal and system enable signal to output a third driving signal; and a soft start enable unit for receiving the third driving signal so as to enable a soft start process.

Abstract translation: 提供了存储器模块的保护电路及其方法。 保护电路包括：第一电压比较单元，其将参考电压信号与电压电平信号进行比较以输出第一驱动信号; 连接在第一电压比较单元的输出端子和第二电压比较单元的输入端子与功率端之间的晶体管开关，其中电压电平信号和阈值电压信号由第二电压比较单元 以将第二驱动信号输出到逻辑算法单元，并且在第二驱动信号和系统使能信号之间进行逻辑算法以输出第三驱动信号; 以及软启动使能单元，用于接收第三驱动信号，以便能够进行软启动处理。

公开(公告)号：US20090271135A1

公开(公告)日：2009-10-29

申请号：US12249965

申请日：2008-10-13

Applicant: Yi-Shan Chu ,  Hsing-Kuo Chao

Inventor： Yi-Shan Chu ,  Hsing-Kuo Chao

IPC: G01R29/02 ,  H03K19/00

CPC classification number: H03K5/153 ,  H04N5/232 ,  Y10T307/76 ,  Y10T307/766 ,  Y10T307/911

Abstract: A detecting device for detecting an operating mode is disclosed. The detecting device includes a pulse generator and a hold-up unit. The pulse generator is disposed for issuing a one-shot pulse signal in response to each of button signals respectively. The hold-up unit is disposed for receiving the button signals to respectively generate delayed button signals by way of clock delay determined by a clock signal. The one-shot pulse signal and the delayed button signals are used to determine an operating mode of a system.

Abstract translation: 公开了一种用于检测操作模式的检测装置。 检测装置包括脉冲发生器和保持单元。 脉冲发生器被设置为响应于每个按钮信号发出单触发脉冲信号。 保持单元设置成用于接收按钮信号，以分别通过由时钟信号确定的时钟延迟产生延迟的按钮信号。 单脉冲信号和延迟按钮信号用于确定系统的操作模式。

公开(公告)号：US07193453B2

公开(公告)日：2007-03-20

申请号：US11208651

申请日：2005-08-23

Applicant: Da-Chun Wei ,  Ju-Lin Chia ,  Yi-Shan Chu

Inventor： Da-Chun Wei ,  Ju-Lin Chia ,  Yi-Shan Chu

IPC: G05F1/10

CPC classification number: H03K17/165 ,  H03K17/04206

Abstract: A dual loop voltage regulation circuit of power supply chip is provided, comprising a capacitor for providing a voltage signal, a comparator for comparing a first reference voltage signal and the voltage signal to output forward or backward trigger signal, a first switch triggered by a forward trigger signal, a second switch triggered by a backward trigger signal, a first operational amplifier generating a first drive signal while the first and second switches are on, a first transistor switch triggered to be on by a first drive signal to provide a current source loop, a third switch triggered by a forward trigger signal, a fourth switch triggered by a backward trigger signal, a second operational amplifier generating a second drive signal while the third and fourth switches are on, and a second transistor switch triggered to be on by a second drive signal to provide a current sink loop.

公开(公告)号：US20070001749A1

公开(公告)日：2007-01-04

申请号：US11208651

申请日：2005-08-23

Applicant: Da-Chun Wei ,  Ju-Lin Chia ,  Yi-Shan Chu

Inventor： Da-Chun Wei ,  Ju-Lin Chia ,  Yi-Shan Chu

IPC: G05F1/10

CPC classification number: H03K17/165 ,  H03K17/04206

Abstract: A dual loop voltage regulation circuit of power supply chip is provided, comprising a capacitor for providing a voltage signal, a comparator for comparing a first reference voltage signal and the voltage signal to output forward or backward trigger signal, a first switch triggered by a forward trigger signal, a second switch triggered by a backward trigger signal, a first operational amplifier generating a first drive signal while the first and second switches are on, a first transistor switch triggered to be on by a first drive signal to provide a current source loop, a third switch triggered by a forward trigger signal, a fourth switch triggered by a backward trigger signal, a second operational amplifier generating a second drive signal while the third and fourth switches are on, and a second transistor switch triggered to be on by a second drive signal to provide a current sink loop.

Abstract translation: 提供电源芯片的双回路电压调节电路，包括用于提供电压信号的电容器，用于比较第一参考电压信号和电压信号以输出正向或反向触发信号的比较器，由前进触发的第一开关 触发信号，由反向触发信号触发的第二开关;第一运算放大器，当所述第一和第二开关导通时产生第一驱动信号;第一晶体管开关由第一驱动信号触发以导通，以提供电流源回路 ，由正向触发信号触发的第三开关，由反向触发信号触发的第四开关，在第三和第四开关导通时产生第二驱动信号的第二运算放大器，以及由第二开关触发的第二晶体管开关 第二驱动信号以提供电流吸收环路。

公开(公告)号：US06853166B1

公开(公告)日：2005-02-08

申请号：US10644837

申请日：2003-08-21

Applicant: Yuan-Wen Chang ,  Yi-Shan Chu

Inventor： Yuan-Wen Chang ,  Yi-Shan Chu

IPC: H02J7/34 ,  H02J7/16

CPC classification number: H02J7/345

Abstract: A capacitance charge device with adjustable clamping voltage is disclosed in the invention, which includes a high-farad capacitance and a power supply device for charging to the high-farad capacitance. In addition, a switch device is connected between the power supply device and the capacitance, and through the on/off operations of the switch device, the on/off conductions between the power supply device and the capacitance can be controlled. Besides, a clamping circuit is connected between the switch device and the capacitance and also connected to the output terminal of the power supply device. In addition, the clamping circuit has a clamping voltage, which can be compared with the actual voltage so as to control the on/off operations of the switch device and in turn control the on/off conductions between the power supply device and the capacitance. In addition, the invention can constrain the battery voltage in the clamping voltage of the clamping circuit. By doing so, the system can be ensured not to be down because of a sudden tremendous voltage drop of the battery, and the clamping voltage is adjustable according to the variations in product design.

Abstract translation: 本发明公开了具有可调节钳位电压的电容充电装置，其包括高法拉电容和用于对高法拉电容充电的电源装置。 此外，开关装置连接在电源装置和电容之间，并且通过开关装置的开/关操作，可以控制电源装置和电容之间的导通/截止导通。 此外，钳位电路连接在开关器件和电容之间，并且还连接到电源装置的输出端子。 此外，钳位电路具有钳位电压，其可以与实际电压进行比较，以便控制开关器件的导通/截止操作，从而控制电源装置和电容之间的导通/截止电导。 此外，本发明可以限制钳位电路的钳位电压中的电池电压。 通过这样做，由于电池的突然的巨大的电压下降，可以确保系统不会下降，并且根据产品设计的变化可以调节钳位电压。