公开(公告)号：US06744649B1

公开(公告)日：2004-06-01

申请号：US10248206

申请日：2002-12-27

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

IPC: H02M324

CPC classification number: H02M3/3376

Abstract: A pulse width modulated soft-switching power converter, having a pair of main switches and a pair of auxiliary switches coupled to the primary winding of the transformer. The main switches and auxiliary switches intermittently conduct an input voltage source to the primary winding to operate the soft-switching power converter in four operation stages in each switching cycle. The main switches conduct the input voltage source to the transformer in a first operation stage. In a second operation stage, the conduction is cut off. The transformer operates as an inductor with the auxiliary switches switched on under zero-voltage or zero-current switching mode in a third operation stage. In the fourth operation stage, the auxiliary switches are switched off, whereby the flyback energy achieves the zero-voltage transition. A zero-voltage-detection is employed to optimize the zero-voltage switching. The switching frequency is decreased in response to the decrease of the load. Furthermore, the auxiliary switching is restricted in accordance with the decrease of the load. Therefore reducing the power consumption in the light load and no load conditions.

Abstract translation: 一种脉宽调制软开关功率转换器，具有一对主开关和一对耦合到变压器初级绕组的辅助开关。 主开关和辅助开关间歇地将一个输入电压源传导到初级绕组，以在每个开关周期的四个运行阶段中操作软开关功率转换器。 在第一个操作阶段，主开关将输入电压源传导到变压器。 在第二操作阶段，导通被切断。 变压器作为电感器工作，辅助开关在第三个运行阶段以零电压或零电流开关模式接通。 在第四运行阶段，辅助开关被切断，由此回扫能量实现零电压转换。 采用零电压检测来优化零电压开关。 响应于负载的减小，开关频率降低。 此外，根据负载的减少来限制辅助开关。 因此降低轻载和无负载条件下的功耗。

公开(公告)号：US20100149845A1

公开(公告)日：2010-06-17

申请号：US12368816

申请日：2009-02-10

Applicant: Chi-Hao WU ,  Chern-Lin Chen

Inventor： Chi-Hao WU ,  Chern-Lin Chen

IPC: H02M7/06

CPC classification number: H02M3/33515 ,  H02M3/33523

Abstract: The present invention relates to a digitally controlled switched-mode power supply, which achieves the effectiveness to save on power and enable more accurate voltage through control of a digital circuit, The power supply is provided with a control circuit, and the control circuit primarily includes a digital unit and a switching controller, wherein functionality of the digital unit enables transmitting an input voltage signal to the switching controller, and when the switching controller transmits voltage to the digital unit, then the digital unit is able to feed a signal back to control the switching controller. Accordingly, the digital unit is able to accurately sense the input load voltage at all times, and thereby achieve advancement to enable saving on power and more accurate voltage.

Abstract translation: 本发明涉及一种数字控制开关电源，其实现了节省功率的效果，并通过数字电路的控制实现了更精确的电压。电源设有控制电路，控制电路主要包括 数字单元和开关控制器，其中数字单元的功能使得能够将输入电压信号传送到开关控制器，并且当开关控制器向数字单元发送电压时，数字单元能够将信号反馈到控制 开关控制器。 因此，数字单元能够一直准确地感测输入负载电压，从而实现提高功率和更精确的电压。

公开(公告)号：USRE40656E1

公开(公告)日：2009-03-10

申请号：US11411208

申请日：2006-04-24

Applicant: Ta-yung Yang ,  Jenn-Yu G. Lin ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Jenn-Yu G. Lin ,  Chern-Lin Chen

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/32 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0041 ,  Y02B70/16

Abstract: The present invention provides a primary-side flyback power converter that supplies a constant voltage output and a constant current output. To generate a well-regulated output voltage under varying load conditions, a PWM controller is included in the power converter in order to generate a PWM signal controlling a switching transistor in response to a flyback voltage sampled from a first primary winding of the power supply transformer. Several improvements are included in this present invention to overcome the disadvantages of prior-art flyback power converters. Firstly, the flyback energy of the first primary winding is used as a DC power source for the PWM controller in order to reduce power consumption. A double sample amplifier samples the flyback voltage just before the transformer current drops to zero. Moreover, an offset current is pulled from a detection input of the double sample amplifier in order to generate a more accurate DC output voltage. The offset current is generated in response to the temperature in order to compensate for temperature-induced voltage fluctuations across the output rectifier. Ultimately, in order to maintain a constant output current, the PWM controller modulates the switching frequency in response to the output voltage.

Abstract translation: 本发明提供了提供恒定电压输出和恒定电流输出的初级侧反激式功率转换器。 为了在变化的负载条件下产生良好调节的输出电压，PWM控制器被包括在功率转换器中，以便响应于从电源变压器的第一初级绕组采样的回扫电压产生控制开关晶体管的PWM信号 。 在本发明中包括若干改进以克服现有技术的反激式功率转换器的缺点。 首先，为了降低功耗，首先将初级绕组的回扫能量用作PWM控制器的直流电源。 双倍采样放大器在变压器电流下降到零之前对反激电压进行采样。 此外，从双倍放大器的检测输入端拉出偏移电流，以产生更精确的直流输出电压。 偏移电流响应于温度而产生，以便补偿输出整流器两端的温度感应电压波动。 最终，为了保持恒定的输出电流，PWM控制器响应于输出电压来调制开关频率。

公开(公告)号：US06862194B2

公开(公告)日：2005-03-01

申请号：US10465467

申请日：2003-06-18

Applicant: Ta-yung Yang ,  Chern-Lin Chen ,  Jenn-yu G. Lin ,  Song-Yi Lin

Inventor： Ta-yung Yang ,  Chern-Lin Chen ,  Jenn-yu G. Lin ,  Song-Yi Lin

IPC: H02M3/335 ,  H02M7/04

CPC classification number: H02M3/33507 ,  H02M2001/0006

Abstract: A primary-side flyback power converter supplies a constant voltage and a constant current output. To generate a well-regulated output voltage under varying load conditions, the power converter includes a PWM controller. The PWM controller generates a PWM signal to control a switching transistor in response to a flyback voltage detected from the first primary winding of the power supply transformer. To reduce power consumption, the flyback energy of the first primary winding is used as a DC power source for the PWM controller. The flyback voltage is sampled following a delay time to reduce interference from the inductance leakage of the transformer. To generate a more accurate DC output voltage, a bias current is pulled from the detection input to form a voltage drop across a detection resistor for compensating for the voltage drop of the output rectifying diode.

Abstract translation: 初级侧反激式功率转换器提供恒定电压和恒定电流输出。 为了在变化的负载条件下产生良好调节的输出电压，功率转换器包括PWM控制器。 PWM控制器产生PWM信号以响应于从电源变压器的第一初级绕组检测到的回扫电压来控制开关晶体管。 为了降低功耗，第一个初级绕组的回扫能量被用作PWM控制器的直流电源。 在延迟时间之后对回扫电压进行采样，以减少变压器的电感泄漏引起的干扰。 为了产生更精确的直流输出电压，从检测输入端拉出偏置电流，在检测电阻上形成电压降，以补偿输出整流二极管的电压降。

公开(公告)号：US06861827B1

公开(公告)日：2005-03-01

申请号：US10666803

申请日：2003-09-17

Applicant: Ta-yung Yang ,  Hsuan-I Pan ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Hsuan-I Pan ,  Chern-Lin Chen

IPC: G05F1/575 ,  G05F3/26 ,  G05F1/40

CPC classification number: G05F1/575 ,  G05F3/262

Abstract: A method and apparatus to dynamically modify the internal compensation of a low drop-out (LDO) voltage regulator is presented. The process involves creating an additional equivalent series resistance (ESR) from an internal circuit. The additional ESR of the internal circuit is sufficient to ensure the DC output stability. This allows the ESR of the output capacitance to be reduced to zero if desired, for improved transient response.

Abstract translation: 提出了一种动态修改低压差（LDO）稳压器内部补偿的方法和装置。 该过程涉及从内部电路产生额外的等效串联电阻（ESR）。 内部电路的额外ESR足以确保直流输出稳定。 如果需要，这允许输出电容的ESR减小到零，以改善瞬态响应。

公开(公告)号：US20050007083A1

公开(公告)日：2005-01-13

申请号：US10617515

申请日：2003-07-10

Applicant: Ta-yung Yang ,  Yi-Hsin Leu ,  Chern-Lin Chen ,  Jenn-Yu Lin

Inventor： Ta-yung Yang ,  Yi-Hsin Leu ,  Chern-Lin Chen ,  Jenn-Yu Lin

IPC: G05F1/40 ,  G05F1/56 ,  H02M1/00 ,  H02M1/42 ,  H02M7/00

CPC classification number: H02M1/4225 ,  H02M2001/4275 ,  Y02B70/126

Abstract: A regulated power supply having power factor correction control includes a multi-vector error amplifier. The multi-vector error amplifier provides an error signal that is used to regulate a switching mechanism of the power supply. The multi-vector error amplifier acts to provide a low distortion error signal during steady-state operation, while responding rapidly and smoothly to sudden load changes.

公开(公告)号：US06839247B1

公开(公告)日：2005-01-04

申请号：US10617516

申请日：2003-07-10

Applicant: Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

Inventor： Ta-yung Yang ,  Jenn-yu G. Lin ,  Chern-Lin Chen

IPC: H02M1/00 ,  H02M1/42 ,  H02M3/335

CPC classification number: H02M1/4225 ,  H02M2001/0032 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/16

Abstract: A PFC-PWM controller with a power saving means is disclosed. A built-in current synthesizer generates a bias current in response to feedback voltages sampled from the PWM circuit and the PFC circuit. The bias current modulates the oscillation frequency to further reduce the switching frequencies of the PWM signal and the PFC signal under light-load and zero-load conditions. Thus, power consumption is greatly reduced. The PFC and the PWM switching signals interleave each other, so that power can be transferred more smoothly from the PFC circuit to the PWM circuit. The saturation of the switching components can be avoided by limiting the maximum on-time of the PWM signal. Further, an external resistor is used to start up the PFC-PWM controller and provide an AC template signal for PFC control.

Abstract translation: 公开了具有省电装置的PFC-PWM控制器。 内置电流合成器响应于从PWM电路和PFC电路采样的反馈电压产生偏置电流。 偏置电流调制振荡频率，以进一步降低轻载和零负载条件下PWM信号和PFC信号的开关频率。 因此，功耗大大降低。 PFC和PWM开关信号互相交错，使得功率可以从PFC电路更平稳地传输到PWM电路。 通过限制PWM信号的最大导通时间可以避免开关元件的饱和。 此外，外部电阻用于启动PFC-PWM控制器，并提供用于PFC控制的AC模板信号。

公开(公告)号：US06150999A

公开(公告)日：2000-11-21

申请号：US169171

申请日：1998-10-07

Applicant: Chern-Lin Chen ,  Song-Yi Lin

Inventor： Chern-Lin Chen ,  Song-Yi Lin

IPC: G09G3/28 ,  G09G3/288

CPC classification number: G09G3/2965 ,  G09G3/294

Abstract: The present invention provides a driving circuit for driving a plasma display unit. The plasma display unit can be repeatedly charged for sustaining a display of an image signal. The driving circuit comprises two driving circuits, a control circuit, and a power supply. Each of the driving circuits comprises an inductor, two switches, and two diodes. Each of the switches comprises a transistor with a parasitic diode existed between a drain and source of the transistor. The plasma display unit is electrically connected between the two inductors. The control circuit is used for controlling the on and off states of the switches so that the power supply can repeatedly charge the plasma display unit through the two driving circuits.

Abstract translation: 本发明提供一种用于驱动等离子体显示单元的驱动电路。 可以重复地对等离子体显示单元进行充电以维持图像信号的显示。 驱动电路包括两个驱动电路，一个控制电路和一个电源。 每个驱动电路包括电感器，两个开关和两个二极管。 每个开关包括在晶体管的漏极和源极之间存在寄生二极管的晶体管。 等离子体显示单元电连接在两个电感器之间。 控制电路用于控制开关的导通和截止状态，使得电源可以通过两个驱动电路反复给等离子体显示单元充电。

公开(公告)号：US5438251A

公开(公告)日：1995-08-01

申请号：US77777

申请日：1993-06-18

Applicant: Chern-Lin Chen ,  Jea-Sen Lin

Inventor： Chern-Lin Chen ,  Jea-Sen Lin

IPC: H02J7/00

CPC classification number: H02J7/0034

Abstract: A safety charging connector is provided for connecting two batteries of two automobiles. The safety charging connector comprises four contact terminals each for contacting a different electrode of one of the two batteries, a relay switch for rendering conduction among the contact terminals, and a control circuit for controlling the conduction of the relay switch; the control circuit includes four sub-circuits each of which is serially connected between the relay switch and one of the four terminals.

Abstract translation: 提供一个安全充电连接器，用于连接两个汽车的两个电池。 安全充电连接器包括四个接触端子，每个接触端子用于接触两个电池之一的不同电极，用于在接触端子之间导通的继电器开关和用于控制继电器开关导通的控制电路; 控制电路包括四个子电路，每个子电路串联连接在继电器开关和四个端子中的一个之间。

公开(公告)号：US20130145918A1

公开(公告)日：2013-06-13

申请号：US13421845

申请日：2012-03-15

Applicant: Yan-Ying Tsai ,  Tung-Po Hsieh ,  Chern-Lin Chen

Inventor： Yan-Ying Tsai ,  Tung-Po Hsieh ,  Chern-Lin Chen

IPC: B26D3/06

CPC classification number: H01L31/18 ,  B28D5/00 ,  H01L31/0463 ,  Y02E10/50 ,  Y10T83/0304

Abstract: A trench scribing apparatus and a trench scribing method adapted to scribe a trench on a substrate are provided. The apparatus includes a platen, a guide rod structure, a supporting carrier and a pin device. The guide rod structure is disposed above the platen. The supporting carrier is fixed on the guide rod structure, and the substrate is disposed on the supporting carrier. The pin device is disposed above the supporting carrier and includes a pin holder and a plurality of pins fastened on the pin holder, and the pins are arranged into at least one straight line.

Abstract translation: 提供了一种适于在衬底上刻划沟槽的沟槽划线装置和沟槽划线方法。 该装置包括压板，导杆结构，支撑架和销装置。 导杆结构设置在压板上。 支撑载体固定在导杆结构上，并且基板设置在支撑载体上。 销装置设置在支撑载体上方，并且包括销保持器和固定在销保持器上的多个销，并且销布置成至少一条直线。