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：US5004486A

公开(公告)日：1991-04-02

申请号：US546768

申请日：1990-07-02

Applicant: Chun-Teh Chen

Inventor： Chun-Teh Chen

IPC: F23J15/04 ,  F23J15/06

CPC classification number: F23J15/04 ,  F23J15/06 ,  Y02E20/363 ,  Y10S261/09 ,  Y10S55/30

Abstract: A gas cleaning system includes a combustion equipment, a heat exchanger for cooling a flue gas discharged from the combustion equipment, an exhaust fan sucking the gas from the heat exchanger and directing the gas into a bubbling dust separator submerged in a water tank so that the dust laden in the gas will be rubbed off when the gas is bubbled through the separator to discharge a clean gas from a stack mounted in the water tank for preventing air pollution.

公开(公告)号：US20100052742A1

公开(公告)日：2010-03-04

申请号：US12200908

申请日：2008-08-28

Applicant: Chun-Teh Chen ,  Ren-Yi Chen ,  Da-Chun Wei

Inventor： Chun-Teh Chen ,  Ren-Yi Chen ,  Da-Chun Wei

IPC: H03K4/06

CPC classification number: H03K17/0822 ,  H03K4/94

Abstract: A PWM control circuit is disclosed. An oscillator generates a triangular signal, received by a limit signal generator to produce a limit signal accordingly. Corresponding to a rising period of the triangular signal, the limit signal sequentially experiences a first holding period, a rising period and a second holding period, wherein the limit signal has a first predetermined value during the first holding period and a second predetermined value during the second holding period. A compare/control circuit compares the limit signal with a detection signal corresponding to a current through a power switch, and controls the power switch accordingly.

Abstract translation: 公开了PWM控制电路。 振荡器产生由限制信号发生器接收的三角形信号，以产生相应的极限信号。 对应于三角形信号的上升期间，限制信号依次经历第一保持期间，上升期间和第二保持期间，其中限制信号在第一保持期间具有第一预定值，在第 第二期。 比较/控制电路将限制信号与对应于通过电源开关的电流的检测信号进行比较，并相应地控制电源开关。

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：US20070127275A1

公开(公告)日：2007-06-07

申请号：US11607977

申请日：2006-12-04

Applicant: Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

Inventor： Yuan-Cheng Chuang ,  Chun-Teh Chen ,  Ying-Chieh Lin ,  Jenn-Jong Shieh

IPC: H02M1/12

CPC classification number: H02M3/335 ,  Y10T307/544

Abstract: The invention discloses a switching power supply capable of reducing a low-frequency secondary-side common-mode voltage. The power supply mainly has two common-mode filtering circuit devices to prevent an AC voltage and an AC current from coupling to a secondary side of a transformer. Thus, the electrical safety and the quality in use of the associated electronic apparatus can be enhanced, a potential difference between the electronic apparatus and the ground may be greatly reduced, and an AC hum of a speaker coupled to an output of the power supply may be reduced or even eliminated.

Abstract translation: 本发明公开了一种能够降低低频二次侧共模电压的开关电源。 电源主要具有两个共模滤波电路装置，以防止交流电压和交流电流耦合到变压器的次级侧。 因此，可以增强电子安全性和相关联的电子设备的使用质量，电子设备和地面之间的电位差可以大大降低，并且耦合到电源的输出端的扬声器的AC嗡嗡声可以 减少甚至消除。

公开(公告)号：US08604646B2

公开(公告)日：2013-12-10

申请号：US12861810

申请日：2010-08-23

Applicant: Chi-Pin Chen ,  Ming-Ying Kuo ,  Chun-Teh Chen

Inventor： Chi-Pin Chen ,  Ming-Ying Kuo ,  Chun-Teh Chen

IPC: H02J7/00

CPC classification number: H02J9/005 ,  G06F1/26 ,  G06F1/3203 ,  Y10T307/826

Abstract: The power management integrated circuit has a startup circuit, a switch controller and a standby controller. Powered by a power source, the startup circuit provides electric power to an operational power source during a startup period. The switch controller controls a power switch to store or release energy in an energy conversion unit. Powered by the power source, the standby controller receives a standby signal. When the standby signal is asserted, the standby controller disables the startup circuit and the switch controller, thereby startup circuit not providing electric power to the operational power source and the switch controller continuously turning off the power switch.

Abstract translation: 电源管理集成电路具有启动电路，开关控制器和备用控制器。 由电源供电，启动电路在启动期间为操作电源提供电力。 开关控制器控制电力开关以在能量转换单元中存储或释放能量。 由电源供电，备用控制器接收待机信号。 当待机信号被置位时，备用控制器禁止启动电路和开关控制器，从而启动电路不向操作电源提供电力，开关控制器连续关闭电源开关。

公开(公告)号：US20110068768A1

公开(公告)日：2011-03-24

申请号：US12639959

申请日：2009-12-16

Applicant: Ren-Yi Chen ,  Chun-Teh Chen

Inventor： Ren-Yi Chen ,  Chun-Teh Chen

IPC: H02J4/00

CPC classification number: H02M3/156

Abstract: A switching power supply includes a power switch, an adjusting circuit and a limit signal generator. The power switch operates according to a switch control signal. The adjusting circuit adjusts the turn-on time of the switch control signal according to a limit signal and a detecting signal which corresponds to the current passing the power switch. When the detecting signal exceeds or is equal to the limit signal, the limit signal generator samples a reference signal and updates the limit signal according to the sampled reference signal.

Abstract translation: 开关电源包括电源开关，调节电路和限制信号发生器。 电源开关根据开关控制信号进行工作。 调节电路根据限制信号和对应于通过电源开关的电流的检测信号来调节开关控制信号的接通时间。 当检测信号超过或等于极限信号时，限制信号发生器对参考信号进行采样，并根据采样的参考信号更新极限信号。

公开(公告)号：US08525504B2

公开(公告)日：2013-09-03

申请号：US12639959

申请日：2009-12-16

Applicant: Ren-Yi Chen ,  Chun-Teh Chen

Inventor： Ren-Yi Chen ,  Chun-Teh Chen

IPC: G05F1/40 ,  H02M3/335

CPC classification number: H02M3/156

Abstract: A switching power supply includes a power switch, an adjusting circuit and a limit signal generator. The power switch operates according to a switch control signal. The adjusting circuit adjusts the turn-on time of the switch control signal according to a limit signal and a detecting signal which corresponds to the current passing the power switch. When the detecting signal exceeds or is equal to the limit signal, the limit signal generator samples a reference signal and updates the limit signal according to the sampled reference signal.

Abstract translation: 开关电源包括电源开关，调节电路和限制信号发生器。 电源开关根据开关控制信号进行工作。 调节电路根据限制信号和对应于通过电源开关的电流的检测信号来调节开关控制信号的接通时间。 当检测信号超过或等于极限信号时，限制信号发生器对参考信号进行采样，并根据采样的参考信号更新极限信号。

公开(公告)号：US20120112564A1

公开(公告)日：2012-05-10

申请号：US13092147

申请日：2011-04-22

Applicant: Chin-Ho Wu ,  Ren-Yi Chen ,  Chun-Teh Chen

Inventor： Chin-Ho Wu ,  Ren-Yi Chen ,  Chun-Teh Chen

IPC: H02H11/00

CPC classification number: H02M1/44 ,  H02M7/06 ,  H02M2001/322

Abstract: A discharging module applied in a switched-mode power supply includes a detecting circuit and a discharging circuit. The detecting circuit is coupled to an input port of the switched-mode power supply. The detecting circuit determines if the input port is supplied power according to an AC input power of the switched-mode power supply. When the detecting circuit determines that the input port is not supplied power, the detecting circuit controls the discharging circuit to provide a discharging path for discharging the input port. In this way, the switched-mode power supply does not require a discharging resistor for discharging the input port. Hence, the power consumed when the switched-mode power supply is unloaded is reduced.

Abstract translation: 施加在开关电源中的放电模块包括检测电路和放电电路。 检测电路耦合到开关模式电源的输入端口。 检测电路根据开关模式电源的交流输入功率确定输入端口是否被供电。 当检测电路确定输入端口没有供电时，检测电路控制放电电路以提供用于放电输入端口的放电路径。 这样，开关电源不需要用于放电输入端口的放电电阻。 因此，开关式电源卸载时消耗的功率降低。

公开(公告)号：US20110057520A1

公开(公告)日：2011-03-10

申请号：US12861810

申请日：2010-08-23

Applicant: Chi-Pin Chen ,  Ming-Ying Kuo ,  Chun-Teh Chen

Inventor： Chi-Pin Chen ,  Ming-Ying Kuo ,  Chun-Teh Chen

IPC: H02J7/00

CPC classification number: H02J9/005 ,  G06F1/26 ,  G06F1/3203 ,  Y10T307/826

Abstract: The power management integrated circuit has a startup circuit, a switch controller and a standby controller. Powered by a power source, the startup circuit provides electric power to an operational power source during a startup period. The switch controller controls a power switch to store or release energy in an energy conversion unit. Powered by the power source, the standby controller receives a standby signal. When the standby signal is asserted, the standby controller disables the startup circuit and the switch controller, thereby startup circuit not providing electric power to the operational power source and the switch controller continuously turning off the power switch.

Abstract translation: 电源管理集成电路具有启动电路，开关控制器和备用控制器。 由电源供电，启动电路在启动期间为操作电源提供电力。 开关控制器控制电力开关以在能量转换单元中存储或释放能量。 由电源供电，备用控制器接收待机信号。 当待机信号被置位时，备用控制器禁止启动电路和开关控制器，从而启动电路不向操作电源提供电力，开关控制器连续关闭电源开关。