公开(公告)号：US20080310196A1

公开(公告)日：2008-12-18

申请号：US11812208

申请日：2007-06-15

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M1/00

CPC classification number: H02M1/36 ,  H02M1/4225 ,  H02M3/33507 ,  Y02B70/126 ,  Y10S323/901

Abstract: The present invention discloses a method and a circuit for controlling a start-up cycle of an integrated circuit in a circuit system. The method and circuit determine whether or not an input power of the circuit system and a bias voltage power of the integrated circuit have reached a normal operating voltage range to control the bias voltage power to produce a start-up cycle of the integrated circuit. The method and circuit also provides a protection mechanism for an overload of the circuit system overload, so that the integrated circuit can moderate surges and prevent damages.

Abstract translation: 本发明公开了一种用于控制电路系统中的集成电路的启动周期的方法和电路。 该方法和电路确定电路系统的输入功率和集成电路的偏置电压功率是否已经达到正常工作电压范围，以控制偏置电压功率以产生集成电路的启动周期。 该方法和电路还为电路系统过载的过载提供保护机制，使集成电路可以缓和浪涌并防止损坏。

公开(公告)号：US20080192517A1

公开(公告)日：2008-08-14

申请号：US11705135

申请日：2007-02-12

Applicant: Kuo-Fan Lin ,  Chien-Li Tsai

Inventor： Kuo-Fan Lin ,  Chien-Li Tsai

IPC: H02H7/125

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: The present invention discloses a self-excitation synchronous rectification driver, which comprises a self-excitation coil, a self-excitation driver, a synchronous-signal source, a pulse transformer, a positive/negative edge detector, and a latch unit. The synchronous-signal source generates a synchronous signal to attain an external synchronous function. When the frequency is abnormal, the first and second rectifier switches of the rectification unit of the power supply are forced to turn on or turn off. Thereby, the first and second rectifier switches can turn on alternately, and the first and second rectifier switches are limited to within the highest and lowest working frequencies during the zero-load stage or the shutdown stage. Thus, the frequency of the synchronous rectification driver is under control, and abnormal voltage will not occur.

Abstract translation: 本发明公开了一种自激同步整流驱动器，其包括自励线圈，自激驱动器，同步信号源，脉冲变压器，正/负边沿检测器和锁存单元。 同步信号源产生同步信号以获得外部同步功能。 当频率异常时，电源整流单元的第一和第二整流开关被迫导通或关断。 由此，第一和第二整流开关交替地导通，并且第一和第二整流开关在零负载阶段或关断阶段被限制在最高和最低工作频率内。 因此，同步整流驱动器的频率受到控制，不会发生异常电压。

公开(公告)号：US07224590B2

公开(公告)日：2007-05-29

申请号：US10956385

申请日：2004-09-30

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M3/335 ,  H02H7/122 ,  G05F1/10

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: A control circuit for use in a power converter has a synchronous rectifier for producing substantially direct current, including a sensor for sensing a characteristic of the power converter; detection circuitry capable of using the characteristic to develop a control signal for controlling the power converter; and synchronous rectifier control circuitry connected to the detection circuitry wherein the control circuitry is adapted to modify a duty cycle of the power converter as a function of the control signal thereby to turn off a freewheel switch of the synchronous rectifier before turning off a forward switch of the synchronous rectifier during a reverse current period.

Abstract translation: 用于功率转换器的控制电路具有用于产生基本上直流的同步整流器，包括用于感测功率转换器的特性的传感器; 检测电路，能够使用该特性来开发用于控制功率转换器的控制信号; 以及连接到检测电路的同步整流器控制电路，其中所述控制电路适于根据所述控制信号来修改所述功率转换器的占空比，从而在断开所述同步整流器的正向开关之前关闭所述同步整流器的续流开关 同步整流器在反向电流期间。

公开(公告)号：US20060072349A1

公开(公告)日：2006-04-06

申请号：US10956385

申请日：2004-09-30

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: A control circuit for use in a power converter having a synchronous rectifier for producing substantially direct current including a sensor for sensing a characteristic of the power converter, detection circuitry capable of using the characteristic to develop a control signal for controlling the power converter, and synchronous rectifier control circuitry connected to the detection circuitry wherein the control circuitry is adapted to modify a duty cycle of the power converter as a function of the control signal thereby to turn off a freewheel switch of the synchronous rectifier before turning off a forward switch of the synchronous rectifier during a reverse current period.

Abstract translation: 一种用于具有同步整流器的功率转换器的控制电路，所述同步整流器用于产生基本上直流的电流，所述同步整流器包括用于感测所述功率转换器的特性的传感器，能够使用所述特性来开发用于控制功率转换器的控制信号的检测电路， 连接到检测电路的整流器控制电路，其中控制电路适于根据控制信号修改功率转换器的占空比，从而在同步整流器的正向开关断开之前关闭同步整流器的续流开关 整流器在反向电流期间。

公开(公告)号：US5896279A

公开(公告)日：1999-04-20

申请号：US838615

申请日：1997-04-10

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M1/40 ,  H02M3/335

CPC classification number: H02M1/40 ,  H02M3/33569

Abstract: A constant-voltage clamping forward conversion switching power supply is disclosed, which can prevent each of a magnetic saturation phenomenon in a main transformer, an excessive high voltage of a main switching transistor, and a shift effect of an input voltage, and can increase the duty cycle and improve an operating efficiency.

Abstract translation: 公开了一种恒压钳位正转转换开关电源，其能够防止主变压器中的每个磁饱和现象，主开关晶体管的过高的高电压和输入电压的偏移效应，并且可以增加 占空比，提高运行效率。

公开(公告)号：US08564993B2

公开(公告)日：2013-10-22

申请号：US13198710

申请日：2011-08-04

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M5/42 ,  H02M7/217

CPC classification number: H02M1/4208 ,  Y02B70/126 ,  Y02P80/112

Abstract: A switch control circuit for controlling a first switch element and a second switch element within a bridgeless switching circuit is provided. The bridgeless switching circuit generates an output signal according to an alternating current signal. The switch control circuit includes a current generating element and a phase generating element. The current generating element is for sensing a first current flowing through the first switch element and a second current flowing through the second switch element, and generating a phase comparison result according to the first and the second currents. The phase generating element generates a first control signal and a second control signal according to a power factor correction signal and the phase comparison result to control conducting status of the first and the second switch elements, respectively.

Abstract translation: 提供了一种用于控制无桥开关电路内的第一开关元件和第二开关元件的开关控制电路。 无桥开关电路根据交流信号产生输出信号。 开关控制电路包括电流产生元件和相位产生元件。 电流产生元件用于感测流过第一开关元件的第一电流和流过第二开关元件的第二电流，并且根据第一和第二电流产生相位比较结果。 相位产生元件根据功率因数校正信号和相位比较结果产生第一控制信号和第二控制信号，以分别控制第一和第二开关元件的导通状态。

公开(公告)号：US20130063852A1

公开(公告)日：2013-03-14

申请号：US13610884

申请日：2012-09-12

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02H3/20

CPC classification number: H01L23/4952 ,  H01L21/56 ,  H01L23/3107 ,  H01L23/49562 ,  H01L23/498 ,  H01L23/62 ,  H01L24/06 ,  H01L24/13 ,  H01L24/14 ,  H01L24/16 ,  H01L24/29 ,  H01L24/32 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L25/16 ,  H01L2224/0401 ,  H01L2224/0603 ,  H01L2224/13111 ,  H01L2224/1403 ,  H01L2224/14051 ,  H01L2224/16106 ,  H01L2224/16245 ,  H01L2224/29339 ,  H01L2224/32013 ,  H01L2224/32245 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/4813 ,  H01L2224/48247 ,  H01L2224/49107 ,  H01L2224/49113 ,  H01L2224/73265 ,  H01L2924/12035 ,  H01L2924/1301 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2924/181 ,  H01L2924/3011 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/00

Abstract: A snubber circuit includes: at least one impedance component, a capacitor, and a Bipolar Junction Transistor (BJT). The snubber circuit is utilized for protecting electric/electronic components, reducing high frequency interference and spike voltage, and enhancing efficiency. In particular, the at least one impedance component in the snubber circuit can be at least one zener diode, where regarding protecting electric/electronic components, reducing high frequency interference and spike voltage, and enhancing efficiency, the performance of the snubber circuit in a situation where the zener diode is utilized is better than that of the snubber circuit in a situation where other types of impedance components are utilized. An associated method of using a BJT in a snubber circuit is also provided.

Abstract translation: 缓冲电路包括：至少一个阻抗分量，电容器和双极结晶体管（BJT）。 缓冲电路用于保护电气/电子部件，降低高频干扰和尖峰电压，提高效率。 特别地，缓冲电路中的至少一个阻抗分量可以是至少一个齐纳二极管，其中关于保护电子/电子部件，降低高频干扰和尖峰电压，并提高效率，在一种情况下缓冲电路的性能 在使用其它类型的阻抗分量的情况下，使用齐纳二极管的电压优于缓冲电路。 还提供了在缓冲电路中使用BJT的相关方法。

公开(公告)号：US20130039101A1

公开(公告)日：2013-02-14

申请号：US13571358

申请日：2012-08-10

Applicant: Hua-Ming Lu ,  Kuo-Fan Lin

Inventor： Hua-Ming Lu ,  Kuo-Fan Lin

IPC: H02M1/36

CPC classification number: H02H9/001

Abstract: A switching power supply apparatus including an AC-to-DC conversion circuit, a hysteretic relay and a relay control circuit is provided. The AC-to-DC conversion circuit includes a current limit resistor, and the current limit resistor is configured to suppress an inrush current generated during the AC-to-DC conversion circuit converts an AC input voltage into a DC output voltage. The hysteretic relay is coupled with the current limit resistor in parallel. The relay control circuit is coupled to the AC-to-DC conversion circuit and the hysteretic relay, and configured to control the hysteretic relay to turn on in response to one of an over drive pulse signal and a holding modulation signal when the DC output voltage reaches to a predetermined value, so as to bypass the current limit resistor, wherein an enabling time of the over drive pulse signal is different from that of the holding modulation signal.

Abstract translation: 提供一种包括AC-DC转换电路，迟滞继电器和继电器控制电路的开关电源装置。 AC-DC转换电路包括限流电阻，并且限流电阻被配置为抑制在AC-DC转换期间产生的浪涌电流将AC输入电压转换成DC输出电压。 迟滞继电器并联电流限制电阻。 继电器控制电路耦合到AC-DC转换电路和迟滞继电器，并且被配置为当直流输出电压（DC）时，响应于过驱动脉冲信号和保持调制信号之一来控制滞后继电器导通 达到预定值，以便绕过限流电阻，其中过驱动脉冲信号的使能时间与保持调制信号的使能时间不同。

公开(公告)号：US07908310B2

公开(公告)日：2011-03-15

申请号：US11714764

申请日：2007-03-07

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: G06F7/16 ,  G05F5/00

CPC classification number: G06G7/16

Abstract: A multiplier-divider capable of offsetting errors includes a plurality of multiplication and division units to perform processes and arrangements so that errors generated by signals passing through the multiplier-divider are offset. As a result impact of the errors is reduced. More than one processing signal can be obtained from the same power supply to reduce loss of external sampling.

Abstract translation: 能够抵消误差的乘法器分配器包括多个乘法和除法单元，以执行处理和布置，使得通过乘法器分频器的信号产生的误差被偏移。 结果，误差的影响降低。 可以从相同的电源获得多于一个的处理信号，以减少外部采样的损耗。

公开(公告)号：US07499294B2

公开(公告)日：2009-03-03

申请号：US11705135

申请日：2007-02-12

Applicant: Kuo-Fan Lin ,  Chien-Li Tsai

Inventor： Kuo-Fan Lin ,  Chien-Li Tsai

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1475

Abstract: The present invention discloses a self-excitation synchronous rectification driver, which comprises a self-excitation coil, a self-excitation driver, a synchronous-signal source, a pulse transformer, a positive/negative edge detector, and a latch unit. The synchronous-signal source generates a synchronous signal to attain an external synchronous function. When the frequency is abnormal, the first and second rectifier switches of the rectification unit of the power supply are forced to turn on or turn off. Thereby, the first and second rectifier switches can turn on alternately, and the first and second rectifier switches are limited to within the highest and lowest working frequencies during the zero-load stage or the shutdown stage. Thus, the frequency of the synchronous rectification driver is under control, and abnormal voltage will not occur.

Abstract translation: 本发明公开了一种自激同步整流驱动器，其包括自励线圈，自激驱动器，同步信号源，脉冲变压器，正/负边沿检测器和锁存单元。 同步信号源产生同步信号以获得外部同步功能。 当频率异常时，电源整流单元的第一和第二整流开关被迫导通或关断。 由此，第一和第二整流开关交替地导通，并且第一和第二整流开关在零负载阶段或关断阶段被限制在最高和最低工作频率内。 因此，同步整流驱动器的频率受到控制，不会发生异常电压。