公开(公告)号：US20160025779A1

公开(公告)日：2016-01-28

申请号：US14793512

申请日：2015-07-07

Applicant: Yi-Shan Chu ,  Chih-Ping Yin ,  Shih-Jen Yang

Inventor： Yi-Shan Chu ,  Chih-Ping Yin ,  Shih-Jen Yang

IPC: G01R19/00 ,  H02J7/00

CPC classification number: H02J7/007 ,  G01R31/045 ,  H02J7/0004 ,  H02J7/0006

Abstract: A method for confirming correctness of a signal includes: providing a current to flow through a time-dependent impedance circuit, wherein the time-dependent impedance circuit provides at least two resistances at two different time points, the current flowing through the time-dependent impedance circuit to generate a first voltage at a first time point, and the current flowing through the time-dependent impedance circuit to generate a second voltage at a second time point, the first voltage and the second voltage being different from each other. When a predetermined relationship exists between the first voltage and the second voltage, it is confirmed that a signal provided from a node coupled to the time-dependent impedance circuit is correct.

Abstract translation: 一种用于确认信号的正确性的方法包括：提供电流流过时间依赖阻抗电路，其中时间依赖阻抗电路在两个不同的时间点提供至少两个电阻，流过时间依赖阻抗的电流 电路，以在第一时间点产生第一电压，以及流过时间依赖阻抗电路的电流，以在第二时间点产生第二电压，第一电压和第二电压彼此不同。 当在第一电压和第二电压之间存在预定的关系时，确认从耦合到时间依赖阻抗电路的节点提供的信号是正确的。

公开(公告)号：US08283809B2

公开(公告)日：2012-10-09

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：US20120074917A1

公开(公告)日：2012-03-29

申请号：US13078005

申请日：2011-04-01

Applicant: Hsing-Kuo Chao ,  Yi-Shan Chu

Inventor： Hsing-Kuo Chao ,  Yi-Shan Chu

IPC: G05F1/00

CPC classification number: H02M3/155 ,  H02M2001/0029

Abstract: An adaptive slope-compensation method is applied for a switch-mode power supply. The switch-mode power supply has a power switch, and an inductor coupled to an input power. The power switch controls the inductor storing energy or releasing energy to generate an output voltage. The adaptive slope-compensation method includes detecting an inductor current passing through the inductor and to generate an inductor-current detecting voltage, detecting a duty cycle of the power switch, detecting a voltage variation of the inductor-current detecting voltage when the power switch is turned on, generating a slope-compensation signal according to the voltage variation and the duty cycle, and adjusting the timing of turning the power switch on or off. In this way, even if the operation conditions of the input power and the output voltage change, the system still can quickly response and does not generate sub-harmonic oscillation.

Abstract translation: 自适应斜率补偿方法适用于开关电源。 开关电源具有电源开关和耦合到输入电源的电感器。 电源开关控制电感器存储能量或释放能量以产生输出电压。 自适应斜率补偿方法包括检测通过电感器的电感电流并产生电感电流检测电压，检测电源开关的占空比，检测电源电流检测电压的电压变化，当电源开关为 导通，根据电压变化和占空比产生斜率补偿信号，并调节打开或关闭电源开关的时间。 这样，即使输入电源和输出电压的运行条件发生变化，系统仍能快速响应，不会产生次谐波振荡。

公开(公告)号：US07821750B2

公开(公告)日：2010-10-26

申请号：US11468765

申请日：2006-08-30

Applicant: Yi-Shan Chu ,  Ming-Nan Chuang

Inventor： Yi-Shan Chu ,  Ming-Nan Chuang

IPC: H02H7/10

CPC classification number: H02H9/045

Abstract: A voltage converter includes an electronic induction device, a switch device, a protection circuit, and a control circuit. The switch device, electrically connected to the electronic induction device, is utilized for selectively establishing an electrical connection between the electronic induction device and a predetermined voltage level according to a control signal. The protection circuit, coupled to the electronic induction device, is utilized for selectively establishing an electrical connection between the electronic induction device and the predetermined voltage level, wherein the protection circuit is enabled to establish the electrical connection when a current passing through the switch device exceeds a predetermined current limit. The control circuit, coupled to the switch device, is utilized for generating the control signal.

Abstract translation: 电压转换器包括电子感应装置，开关装置，保护电路和控制电路。 电连接到电子感应装置的开关装置用于根据控制信号选择性地建立电子感应装置与预定电压电平之间的电连接。 耦合到电子感应装置的保护电路用于选择性地建立电子感应装置与预定电压电平之间的电连接，其中当通过开关装置的电流超过时，保护电路能够建立电连接 预定电流限制。 耦合到开关装置的控制电路用于产生控制信号。

公开(公告)号：US20090146575A1

公开(公告)日：2009-06-11

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：US20090091950A1

公开(公告)日：2009-04-09

申请号：US11867009

申请日：2007-10-04

Applicant: Hsing-Kuo Chao ,  Yi-Shan Chu ,  Yu-Chuan Liu

Inventor： Hsing-Kuo Chao ,  Yi-Shan Chu ,  Yu-Chuan Liu

IPC: H02M3/00

CPC classification number: H02M3/155 ,  H05B33/0815 ,  H05B33/0887 ,  Y02B20/341

Abstract: A power converting circuit with an open load protection function is electrically connected to a power supply providing a first voltage level, and outputs a second voltage level to drive a load. The power converting circuit includes a DC/DC converter and a rectifying element disposed between an output node and an input node of the DC/DC converter that forms a discharging loop with the DC/DC converter. The DC/DC converter receives the power, converts the first voltage level into the second voltage level and outputs the second voltage level to the load. The rectifying element is utilized to release a surge voltage produced by the DC/DC converter in an open load condition.

Abstract translation: 具有开路负载保护功能的电力转换电路电连接到提供第一电压电平的电源，并输出第二电压电平以驱动负载。 功率转换电路包括DC / DC转换器和设置在DC / DC转换器的输出节点和输入节点之间的整流元件，其与DC / DC转换器形成放电环路。 DC / DC转换器接收电力，将第一电压电平转换成第二电压电平，并将第二电压电平输出到负载。 整流元件用于在开路负载条件下释放由DC / DC转换器产生的浪涌电压。

公开(公告)号：US06788005B2

公开(公告)日：2004-09-07

申请号：US10076428

申请日：2002-02-19

Applicant: Yi-Shan Chu ,  Cheng-Chia Hsu

Inventor： Yi-Shan Chu ,  Cheng-Chia Hsu

IPC: H05B3700

CPC classification number: H05B41/2824

Abstract: An inverter for igniting a discharge lamp comprises a transformer, a first switch transistor, a second switch transistor, a first snubber capacitor, a second snubber capacitor, a reset capacitor, and a control circuit. One of the source/drain of the first switch transistor is electrically coupled to the primary side of the transformer. One of the source/drain of the second switch transistor is electrically coupled to the primary side of the transformer. The first snubber capacitor is electrically coupled between the source and the drain of the first switch transistor. The second snubber capacitor is electrically coupled between the source and the drain of the second switch transistor. The reset capacitor is electrically coupled between the other of the source/drain of the first switch transistor and the other of the source/drain of the second switch transistor. The control circuit controls the first switch transistor and the second switch transistor so that the two transistors will not conduct at the same time.

Abstract translation: 用于点燃放电灯的逆变器包括变压器，第一开关晶体管，第二开关晶体管，第一缓冲电容器，第二缓冲电容器，复位电容器和控制电路。 第一开关晶体管的源/漏之一电耦合到变压器的初级侧。 第二开关晶体管的源极/漏极之一电耦合到变压器的初级侧。 第一缓冲电容器电耦合在第一开关晶体管的源极和漏极之间。 第二缓冲电容器电耦合在第二开关晶体管的源极和漏极之间。 复位电容器电耦合在第一开关晶体管的源极/漏极中的另一个和第二开关晶体管的源极/漏极中的另一个之间。 控制电路控制第一开关晶体管和第二开关晶体管，使得两个晶体管不会同时导通。

公开(公告)号：US20110032024A1

公开(公告)日：2011-02-10

申请号：US12536473

申请日：2009-08-05

Applicant: Ren-Yi Chen ,  Yi-Lun Shen ,  Yi-Shan Chu

Inventor： Ren-Yi Chen ,  Yi-Lun Shen ,  Yi-Shan Chu

IPC: H03H11/40

CPC classification number: H03K17/687 ,  H03K19/1732 ,  H03K2217/0036 ,  H05B33/0815 ,  Y02B20/346

Abstract: An integrated circuit and a related method for determining an operation mode are disclosed. The exemplified integrated circuit includes a controller, a multi-function pin, and a mode determination circuit. The controller controls a power switch and is being set to operate in one of the operation modes including a first operation mode and a second operation mode. The multi-function pin is connected to an external resistor. The mode determination circuit detects a signal from the multi-function pin. The signal represents the resistance of the external resistor. If the resistance is within a first range, the controller is operated in the first operation mode. If the resistance is within a second range, the controller is operated in the second operation mode.

Abstract translation: 公开了用于确定操作模式的集成电路和相关方法。 示例性集成电路包括控制器，多功能引脚和模式确定电路。 控制器控制电源开关并被设置为在包括第一操作模式和第二操作模式的操作模式之一中操作。 多功能引脚连接到外部电阻。 模式确定电路检测来自多功能引脚的信号。 该信号表示外部电阻的电阻。 如果电阻在第一范围内，则控制器在第一操作模式下操作。 如果电阻在第二范围内，则控制器在第二操作模式下操作。

公开(公告)号：US07573730B2

公开(公告)日：2009-08-11

申请号：US11936790

申请日：2007-11-08

Applicant: Ming-Nan Chuang ,  Yi-Shan Chu ,  Yu-Bin Wang

Inventor： Ming-Nan Chuang ,  Yi-Shan Chu ,  Yu-Bin Wang

IPC: H02M3/335

CPC classification number: H02J7/0052 ,  H02J2007/0059 ,  H02M3/33523 ,  H02M2001/0038

Abstract: A charging device with boundary mode control is disclosed. The charging device includes a transformer, a power switch, a detection circuit and a pulse-width modulation (PWM) controller. The power switch is electrically connected to one end of a primary-side winding of the transformer. The detection circuit is electrically connected to the primary-side winding and the power switch. The detection circuit detects the resonance of the parasitic capacitance of the power switch, thereby generating a detection signal for boundary mode control. The PWM controller generates a pulse-width modulation signal for driving the power switch, and turns on the power switch according to the detection signal.

Abstract translation: 公开了具有边界模式控制的充电装置。 充电装置包括变压器，电源开关，检测电路和脉冲宽度调制（PWM）控制器。 电源开关电连接到变压器的初级侧绕组的一端。 检测电路电连接到初级侧绕组和电源开关。 检测电路检测电源开关的寄生电容的谐振，从而产生用于边界模式控制的检测信号。 PWM控制器产生用于驱动电源开关的脉宽调制信号，并根据检测信号接通电源开关。

公开(公告)号：US20090128209A1

公开(公告)日：2009-05-21

申请号：US11942720

申请日：2007-11-20

Applicant: Yi-Shan Chu ,  Yu-Bin Wang ,  Hsing-Kuo Chao

Inventor： Yi-Shan Chu ,  Yu-Bin Wang ,  Hsing-Kuo Chao

IPC: H03K3/017 ,  H03K7/08

CPC classification number: H03K7/08

Abstract: A pulse width modulation (PWM) control circuit is applied to a power converter with a charging capacitor. The PWM control circuit includes a PWM signal generator, a first comparator, and a reference voltage modulator. A PWM signal generator generates a PWM signal to control a power switch in the power converter. Two input terminals of the first comparator respectively receive a first reference voltage and a sensing voltage, which is proportional to a primary-side current of a transformer. When the power switch is turned on and the sensing voltage rises to the level of the first reference voltage, the first comparator outputs a first control signal to the PWM signal generator. Then, the PWM signal generator outputs a signal to turn off the power switch. The reference voltage modulator outputs the first reference voltage according to a feedback voltage relative to the output voltage of the power converter.

Abstract translation: 脉冲宽度调制（PWM）控制电路应用于具有充电电容器的功率转换器。 PWM控制电路包括PWM信号发生器，第一比较器和参考电压调制器。 PWM信号发生器产生PWM信号以控制功率转换器中的电源开关。 第一比较器的两个输入端子分别接收与变压器初级侧电流成比例的第一参考电压和感测电压。 当电源开关接通并且感测电压上升到第一参考电压的电平时，第一比较器向PWM信号发生器输出第一控制信号。 然后，PWM信号发生器输出信号以关闭电源开关。 参考电压调制器根据相对于功率转换器的输出电压的反馈电压输出第一参考电压。