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：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。

公开(公告)号：US08058857B2

公开(公告)日：2011-11-15

申请号：US12360949

申请日：2009-01-28

Applicant: Chi-Hao Wu ,  Chern-Lin Chen

Inventor： Chi-Hao Wu ,  Chern-Lin Chen

IPC: G05F1/40

CPC classification number: H02M3/33515

Abstract: The present invention relates to a digitally controlled switched-mode power supply, wherein a switched-mode power supply is provided with a control circuit, which comprises a signal amplifier unit able to receive digital signals or analog signals and a switching controller able to receive the signals. The switching controller uses the signals to produce a clock signal, after which the clock signal is output, whereupon the signal amplifier unit feeds a signal back to control the switching controller. The signal amplifier unit is provided with at least one amplifier element, and when the amplifier element receives a digital signal or analog signal, then the signal is transmitted to the switching controller. Accordingly, the control circuit achieves the effectiveness to not only receive and transmit digital signals, but also receive and transmit analog signals, and is thus provided with the advantage of enormous flexibility.

Abstract translation: 本发明涉及一种数字控制的开关电源，其中开关模式电源具有控制电路，该控制电路包括能够接收数字信号或模拟信号的信号放大器单元，以及能够接收 信号。 开关控制器使用信号产生时钟信号，之后输出时钟信号，于是信号放大器单元向信号反馈信号以控制开关控制器。 信号放大器单元设置有至少一个放大器元件，并且当放大器元件接收数字信号或模拟信号时，该信号被发送到开关控制器。 因此，控制电路实现了不仅接收和发送数字信号而且还接收和发送模拟信号的有效性，并且因此具有巨大灵活性的优点。

公开(公告)号：US07054170B2

公开(公告)日：2006-05-30

申请号：US10752363

申请日：2004-01-05

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

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

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H01F2038/026

Abstract: A power-mode controlled power converter is capable of supplying a constant output voltage and output current. A PWM controller generates a PWM signal in response to a voltage sampled from a transformer auxiliary winding. A programmable current-sink and a detection resistor compensate for a voltage drop of an output rectifier. A low-pass filter integrates a switching-current voltage to an average-current signal. An attenuator produces an input-voltage signal from a line-voltage input signal. The PWM controller multiplies the average-current signal with the input-voltage signal to generate a power-control signal. An error-amplifier compares the power-control signal with a power-reference voltage to generate a limit voltage. The limit voltage controls the power delivered from a primary-side circuit to a secondary-side circuit of the power-mode controlled power converter. Since the power-reference voltage varies in proportional to output voltage variations, a constant output current is therefore achieved.

Abstract translation: 功率模式控制功率转换器能够提供恒定的输出电压和输出电流。 PWM控制器响应于从变压器辅助绕组采样的电压产生PWM信号。 可编程电流吸收器和检测电阻器补偿输出整流器的电压降。 低通滤波器将开关电流电压集成到平均电流信号。 衰减器从线电压输入信号产生输入电压信号。 PWM控制器将平均电流信号与输入电压信号相乘以产生功率控制信号。 误差放大器将功率控制信号与功率参考电压进行比较，以产生极限电压。 极限电压控制从功率模式受控功率转换器的初级侧电路到次级侧电路的功率。 由于功率参考电压与输出电压变化成比例变化，因此实现恒定的输出电流。

公开(公告)号：US20050146903A1

公开(公告)日：2005-07-07

申请号：US10752363

申请日：2004-01-05

Applicant: Ta-Yung Yang ,  Chern-Lin Chen ,  Jenn-Yu Lin ,  Guo-Kiang Hung

Inventor： Ta-Yung Yang ,  Chern-Lin Chen ,  Jenn-Yu Lin ,  Guo-Kiang Hung

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H01F2038/026

Abstract: The present invention demonstrates a power-mode controlled power converter for supplying a constant output voltage and a constant output current. A PWM controller of the power-mode controlled power converter generates a PWM signal in response to the voltage sampled from a transformer auxiliary winding. A programmable current-sink and a detection resistor compensate for the voltage drop of an output rectifier. A low-pass filter integrates a switching-current voltage to an average-current signal. An attenuator produces an input-voltage signal from a line-voltage input signal. The PWM controller multiplies the average-current signal with the input-voltage signal to generate a power-control signal. An error-amplifier compares the power-control signal with a power-reference voltage to generate a limit voltage. The limit voltage controls the power delivered from a primary-side circuit to a secondary-side circuit of the power-mode controlled power converter. Since the power-reference voltage varies in proportional to output voltage variations, a constant output current is therefore achieved.

Abstract translation: 本发明示出了用于提供恒定输出电压和恒定输出电流的功率模式控制功率转换器。 功率模式受控功率转换器的PWM控制器响应于从变压器辅助绕组采样的电压产生PWM信号。 可编程电流吸收器和检测电阻器补偿输出整流器的电压降。 低通滤波器将开关电流电压集成到平均电流信号。 衰减器从线电压输入信号产生输入电压信号。 PWM控制器将平均电流信号与输入电压信号相乘以产生功率控制信号。 误差放大器将功率控制信号与功率参考电压进行比较，以产生极限电压。 极限电压控制从功率模式受控功率转换器的初级侧电路到次级侧电路的功率。 由于功率参考电压与输出电压变化成比例变化，因此实现恒定的输出电流。

公开(公告)号：US20050024897A1

公开(公告)日：2005-02-03

申请号：US10629150

申请日：2003-07-28

Applicant: Ta-Yung Yang ,  Jenn-Yu Lin ,  Chern-Lin Chen

Inventor： Ta-Yung Yang ,  Jenn-Yu Lin ,  Chern-Lin Chen

IPC: H02M1/38 ,  H02M3/335

CPC classification number: H02M1/38 ,  H02M3/33592 ,  Y02B70/1475

Abstract: The present invention provides a forward power converter with a synchronized rectifying controller. The synchronized rectifying controller has a detection input for detecting the voltage of a secondary winding of a transformer, and thereby accurately measuring the PWM signal. Based on this measurement, the synchronized rectifying controller generates control signals for two secondary-side rectifying MOSFETs. The present invention also introduces a delay time using a timing resistor coupled to the synchronized rectifying controller. This avoids cross-conduction from secondary-side MOSFETs. The present invention also includes an output current-sense mechanism to avoid reverse inductor currents under light-load conditions.

Abstract translation: 本发明提供一种具有同步整流控制器的正向功率转换器。 同步整流控制器具有用于检测变压器的次级绕组的电压的检测输入，从而精确地测量PWM信号。 基于该测量，同步整流控制器产生用于两个次级侧整流MOSFET的控制信号。 本发明还引入使用耦合到同步整流控制器的定时电阻器的延迟时间。 这避免了二次侧MOSFET的交叉导通。 本发明还包括在轻负载条件下避免反向电感电流的输出电流检测机构。

公开(公告)号：US06768655B1

公开(公告)日：2004-07-27

申请号：US10357842

申请日：2003-02-03

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

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

IPC: H02M3335

CPC classification number: H02M1/4225 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16 ,  Y02P80/112

Abstract: The present invention discloses a ZCS discontinuous mode PFC controller having a power saving modulator. The controller turns on through the feedback resistor and the parasitic diode of the controller, thus eliminating the need for a startup resistor. To achieve ZCS, the inductor current is released to zero, while the switching signal is off, before the next switching cycle starts. In order to decrease the switching frequency for light load conditions, an off-time delay is inserted right before the start of every switching cycle. The off-time delay is modulated to be the function of the feedback voltage and supply voltage. When the supply voltage is lower than the limit voltage, the off-time delay will decrease to inhibit the decrease of a switching frequency therefore prevents a low supply voltage. The switching frequency is decreased in accordance with the decrease of the load. Consequently, the switching losses and power consumption for light load and no load conditions are reduced.

Abstract translation: 本发明公开了一种具有省电调制器的ZCS不连续模式PFC控制器。 控制器通过反馈电阻和控制器的寄生二极管接通，因此无需启动电阻。 为了实现ZCS，在下一个开关周期开始之前，电感电流释放为零，而开关信号关闭。 为了降低轻负载条件的开关频率，在每个开关周期开始之前插入关断时间延迟。 关断时间延迟被调制为反馈电压和电源电压的函数。 当电源电压低于极限电压时，关断时间延迟将降低，以抑制开关频率的降低，从而防止低电源电压。 开关频率根据负载的减小而减小。 因此，减轻了轻负载和无负载条件下的开关损耗和功耗。

公开(公告)号：US06160531A

公开(公告)日：2000-12-12

申请号：US169172

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 discloses a driving method utilizing a driving circuit for driving a plasma display unit of a plasma display panel. The plasma display unit is repeatedly charged for sustaining an image signal. The driving circuit comprises an inductor connected in parallel to two ends of the plasma display unit, a power supply for charging the plasma display unit and the inductor, a first switch connected between the power supply and the first end of the plasma display unit, a second switch connected between the first end of the plasma display unit and ground, a third switch connected between the power supply and the second end of the plasma display unit, and a fourth switch connected between the second end of the plasma display unit and ground. Each of the first and second switches comprises a transistor having a parasitic diode between the drain and source of each transistor. Each switch is switched on only when the potential difference between the source and drain of the transistor is 0V.

Abstract translation: 本发明公开了一种利用驱动电路驱动等离子体显示面板的等离子体显示单元的驱动方法。 等离子体显示单元被重复充电以维持图像信号。 驱动电路包括并联连接到等离子体显示单元的两端的电感器，用于对等离子体显示单元和电感器充电的电源，连接在电源和等离子体显示单元的第一端之间的第一开关， 连接在等离子体显示单元的第一端和地之间的第二开关，连接在电源和等离子体显示单元的第二端之间的第三开关，以及连接在等离子体显示单元的第二端和地之间的第四开关。 第一和第二开关中的每一个包括在每个晶体管的漏极和源极之间具有寄生二极管的晶体管。 每个开关仅在晶体管的源极和漏极之间的电位差为0V时才导通。