公开(公告)号：US20130193935A1

公开(公告)日：2013-08-01

申请号：US13753490

申请日：2013-01-29

Applicant: FSP Technology Inc.

Inventor： Sheng-Wen Pan

IPC: G05F5/00 ,  G05F1/10

CPC classification number: G05F5/00 ,  G05F1/10 ,  G05F3/242

Abstract: A voltage reference generation circuit includes a current supply circuit and a core circuit. The current supply circuit is arranged to provide a plurality of currents. The core circuit is coupled to the current supply circuit, and arranged to receive the currents and accordingly generate a voltage reference. The core circuit includes a first transistor, a second transistor and a third transistor, wherein the first transistor and the third transistor generate a first gate-to-source voltage and a third gate-to-source voltage, respectively, according to a first current of the received currents; the second transistor generates a second gate-to-source voltage according to a second current of the received currents; and the voltage reference is generated according to the first gate-to-source voltage, the second gate-to-source voltage and the third gate-to-source voltage.

Abstract translation: 电压基准产生电路包括电流供给电路和核心电路。 电流供应电路设置成提供多个电流。 核心电路耦合到电流供应电路，并被布置成接收电流并因此产生电压基准。 核心电路包括第一晶体管，第二晶体管和第三晶体管，其中第一晶体管和第三晶体管分别根据第一电流产生第一栅极至源极电压和第三栅极至源极电压 的接收电流; 第二晶体管根据接收电流的第二电流产生第二栅极至源极电压; 并且根据第一栅极至源极电压，第二栅极至源极电压和第三栅极至源极电压产生电压参考。

公开(公告)号：US20130016545A1

公开(公告)日：2013-01-17

申请号：US13547051

申请日：2012-07-12

Applicant: Ming Xu ,  Qiao-Liang Chen

Inventor： Ming Xu ,  Qiao-Liang Chen

IPC: H02M7/04

CPC classification number: H02M1/4233 ,  H02M1/4225 ,  H02M1/44 ,  H02M2001/123 ,  Y02B70/126

Abstract: An AC-to-DC conversion apparatus is provided, and which includes a first switch-element, an output capacitor and a bridgeless power-factor-correction (PFC) circuit. The bridgeless PFC circuit is coupled to an AC input, and includes a first inductor, a second inductor and a bridge circuit constructed by second to fifth switch-elements. The first switch-element is connected between bridgeless PFC circuit and the output capacitor. Under such circuit configuration and suitable control manner, the common-mode interference in the provided AC-to-DC conversion apparatus is lowered and thus reducing the power loss.

Abstract translation: 提供了一种AC至DC转换装置，其包括第一开关元件，输出电容器和无桥功率因数校正（PFC）电路。 无桥PFC电路耦合到AC输入，并且包括由第二至第五开关元件构成的第一电感器，第二电感器和桥接电路。 第一个开关元件连接在无桥PFC电路和输出电容器之间。 在这种电路配置和适当的控制方式下，所提供的AC-DC转换装置的共模干扰降低，从而降低功率损耗。

公开(公告)号：US20120293219A1

公开(公告)日：2012-11-22

申请号：US13474737

申请日：2012-05-18

Applicant: Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

Inventor： Yong-Jiang Bai ,  Qiao-Liang Chen ,  Ning-Bin Wang ,  Ju-Lu Sun

IPC: H03K3/36

CPC classification number: H02M3/1588 ,  Y02B70/1466

Abstract: A bootstrap gate driver including a load indication unit, a bootstrap gate-drive unit and a drive-control unit is provided. The load indication unit is configured to generate a load indication signal in response to a state of a load. The bootstrap gate-drive unit is configured to drive a switch-transistor circuit in response to an inputted pulse-width-modulation (PWM) signal, wherein the switch-transistor circuit has a high-side driving path and a low-side driving path. The drive-control unit is coupled to the load indication unit and the bootstrap gate-drive unit, and configured to enable or disable the high-side driving path in response to the load indication signal. In the invention, the operation of the low-side driving path is not affected by enabling or disabling the high-side driving path.

Abstract translation: 提供了包括负载指示单元，自举门驱动单元和驱动控制单元的自举门驱动器。 负载指示单元被配置为响应于负载的状态产生负载指示信号。 自举门驱动单元被配置为响应于输入的脉宽调制（PWM）信号来驱动开关晶体管电路，其中开关晶体管电路具有高侧驱动路径和低侧驱动路径 。 驱动控制单元耦合到负载指示单元和自举门驱动单元，并且被配置为响应于负载指示信号来启用或禁用高侧驱动路径。 在本发明中，低侧驱动路径的动作不受启用或禁用高侧驱动路径的影响。

公开(公告)号：US08238081B2

公开(公告)日：2012-08-07

申请号：US12752123

申请日：2010-04-01

Applicant: Shao-Feng Lu

Inventor： Shao-Feng Lu

IPC: G06F1/06 ,  H05K5/00

CPC classification number: H05K7/20172

Abstract: A power supply including a housing, a sliding member, a plurality of terminals and a fan module is provided. The housing has an opening and an inner sidewall. The sliding member is disposed on the inner sidewall of the housing. The sliding member has at least one fixing slot parallel to the inner sidewall. The terminals are disposed on the sliding member and can slidably move parallel to the inner sidewall. The fan module is mounted in the housing from the opening. A terminal connector is disposed on an outer sidewall of the fan module and located on a moving direction of the terminals, so that the terminal connector can be electrically connected to the terminals.

Abstract translation: 提供包括壳体，滑动构件，多个端子和风扇模块的电源。 壳体具有开口和内侧壁。 滑动构件设置在壳体的内侧壁上。 滑动构件具有平行于内侧壁的至少一个固定槽。 端子设置在滑动构件上并且可滑动地平行于内侧壁移动。 风扇模块从开口安装在外壳中。 端子连接器设置在风扇模块的外侧壁上并且位于端子的移动方向上，使得端子连接器可以电连接到端子。

公开(公告)号：US20120007513A1

公开(公告)日：2012-01-12

申请号：US12832980

申请日：2010-07-08

Applicant: Chih-Jen Teng ,  Wen-Sen Hsieh

Inventor： Chih-Jen Teng ,  Wen-Sen Hsieh

IPC: H05B37/02

CPC classification number: H05B33/0809 ,  Y02B20/342

Abstract: A passive current balance driving apparatus has a circuit topology composed by several simple passive components and is capable of driving a plurality of LED strings simultaneously. The present passive current balance driving apparatus is mainly configured such that each LED string has the identical load characteristics during the positive and negative half cycles of the AC power. As such, the currents flowing through the respective LED strings are basically/substantially equal, thereby achieving the current balance.

Abstract translation: 无源电流平衡驱动装置具有由几个简单的无源部件组成的电路拓扑，并且能够同时驱动多个LED串。 本无源电流平衡驱动装置主要被配置为使得每个LED串在交流电源的正半周期和负半周期期间具有相同的负载特性。 这样，流过各个LED串的电流基本上/基本上相等，从而实现电流平衡。

公开(公告)号：US08089258B2

公开(公告)日：2012-01-03

申请号：US12727254

申请日：2010-03-19

Applicant: Chih-Chang Tsai

Inventor： Chih-Chang Tsai

IPC: G05F1/575 ,  G05F1/59

CPC classification number: H02J1/102

Abstract: A power supply apparatus is provided. The power supply apparatus includes two power suppliers coupled in parallel so as to simultaneously supply the electric power required by an electronic product in operation. The power supply apparatus provided by the invention may stably/accurately output the desired DC output voltage to the electronic product, and may further in advance increase a main power generated inside the other power supplier when one of the power suppliers is over voltage, thereby avoiding an oversized voltage drop from occurring in the DC output voltage.

公开(公告)号：US08072094B2

公开(公告)日：2011-12-06

申请号：US12346315

申请日：2008-12-30

Applicant: Shih An Liang ,  Hsu Chien Lung ,  Ching Wen Huang

Inventor： Shih An Liang ,  Hsu Chien Lung ,  Ching Wen Huang

IPC: H02J3/00

CPC classification number: H02M3/33561 ,  Y10T307/383 ,  Y10T307/406 ,  Y10T307/582 ,  Y10T307/707 ,  Y10T307/735

Abstract: An active output compensation circuit is adopted for use on a power supply which receives input power and regulates to become a plurality of different output power. The power supply has a transformer to transform the input power. The transformer has a secondary side connecting to a plurality of output regulation units to deliver the output power. The active output compensation circuit includes a voltage difference judgment unit electrically connected to the output regulation units and a plurality of compensation channel switches. The compensation channel switches bridge two output regulation units and the voltage difference judgment unit. The voltage difference judgment unit judges the voltage difference of two output power and determines whether to output an ON signal. The compensation channel switches are driven by the ON signal and set ON so that one output power can compensate another output power.

Abstract translation: 采用有源输出补偿电路用于接收输入功率并调节成多个不同输出功率的电源。 电源具有变压器来转换输入功率。 变压器具有连接到多个输出调节单元以传递输出功率的次级侧。 有源输出补偿电路包括电连接到输出调节单元的电压差判断单元和多个补偿通道开关。 补偿通道切换桥接两个输出调节单元和电压差判断单元。 电压差判定单元判定两个输出功率的电压差，并确定是否输出ON信号。 补偿通道开关由ON信号驱动，并设置为ON，使一个输出功率可以补偿另一个输出功率。

公开(公告)号：US07929286B2

公开(公告)日：2011-04-19

申请号：US12352874

申请日：2009-01-13

Applicant: Shao-Feng Lu

Inventor： Shao-Feng Lu

IPC: G06F1/16

CPC classification number: H05K7/1457

Abstract: An output structure for a redundant power system includes at least two power supplies, a first circuit board and a second circuit board. The power supplies and the first circuit board have respectively a first connection port and a second connection port that correspond and connect to each other. The second connection ports are electrically connected to at least one conductive element to conduct output of the power supplies. The conductive element has another end transporting power to the second circuit board. The second circuit board has at least one transformation circuit to regulate the power passing through the conductive element to form at least one output power to a load. Through the first and second circuit boards, the power of multiple power supplies can be clustered and transformed and delivered. Heat dissipation improves and the size can be shrunk, and insulation density between circuit elements can be maintained.

Abstract translation: 用于冗余电力系统的输出结构包括至少两个电源，第一电路板和第二电路板。 电源和第一电路板分别具有彼此对应并连接的第一连接端口和第二连接端口。 第二连接端口电连接到至少一个导电元件以导电电源的输出。 导电元件具有向第二电路板输送功率的另一端。 第二电路板具有至少一个变换电路，以调节通过导电元件的功率以形成至少一个输出功率到负载。 通过第一和第二电路板，可以集中和转换和交付多个电源的功率。 散热提高，尺寸缩小，电路元件之间的绝缘密度得以保持。

公开(公告)号：US20110037414A1

公开(公告)日：2011-02-17

申请号：US12686333

申请日：2010-01-12

Applicant: Beibei Wang ,  Xinbo Ruan ,  Ming Xu ,  Kai Yao

Inventor： Beibei Wang ,  Xinbo Ruan ,  Ming Xu ,  Kai Yao

IPC: H05B41/36

CPC classification number: H05B33/0815

Abstract: A driving apparatus is provided and configured to suit driving at least a string of light emitting diodes (LEDs). The driving apparatus includes a flyback power factor correction (PFC) converter, a harmonics-filtering unit and a control unit. The flyback PFC converter works in an operation mode according to a pulse-width modulation (PWM) signal and receives an AC power so as to convert the AC power into a pulsating current. The harmonics-filtering unit is coupled to the flyback PFC converter and the string of LEDs, for receiving the pulsating current and filtering out the high-frequency harmonic components in the pulsating current so as to drive the string of LEDs. The control unit is coupled to the flyback PFC converter and the harmonics-filtering unit, for producing the PWM signal according to the AC power and the pulsating current, and reducing the peak-to-average ratio (PAR) of the pulsating current.

Abstract translation: 驱动装置被提供和配置为适合驱动至少一串发光二极管（LED）。 驱动装置包括反激式功率因数校正（PFC）转换器，谐波滤波单元和控制单元。 回扫PFC转换器根据脉宽调制（PWM）信号工作在运行模式，并接收交流电源，以将交流电转换为脉动电流。 谐波滤波单元耦合到回扫PFC转换器和LED串，用于接收脉动电流并滤除脉动电流中的高频谐波分量，以驱动LED串。 控制单元耦合到回扫PFC转换器和谐波滤波单元，用于根据AC功率和脉动电流产生PWM信号，并降低脉动电流的峰值平均比（PAR）。

公开(公告)号：US07839100B2

公开(公告)日：2010-11-23

申请号：US11967691

申请日：2007-12-31

Applicant: Shih An Liang ,  Kuo-Hei Lee ,  Ken-Chuan Hsu

Inventor： Shih An Liang ,  Kuo-Hei Lee ,  Ken-Chuan Hsu

IPC: G05F1/00

CPC classification number: H05B41/2828 ,  H05B41/3927

Abstract: The present invention discloses a front-stage voltage-adjustment inverter, which comprises: a front-stage voltage-adjustment unit, a duty cycle modulation unit, a half-bridge driving unit and a transformer unit. The front-stage voltage-adjustment unit receives an input power, a dimming signal and a feedback signal. The front-stage voltage-adjustment unit varies the voltage of the input power according to the dimming signal and performs a feedback adjustment according to the feedback signal. In the present invention, the cycle signal generated by the duty cycle modulation unit does not vary with the dimming signal and feedback signal. Thus, the half-bridge driving unit can work in a zero-voltage switching state constantly and drive the transformer unit to output a driving power. Thereby, the present invention can decrease the switching loss and increase the service lives of loads and electronic elements.

Abstract translation: 本发明公开了一种前级电压调节逆变器，包括：前级电压调节单元，占空比调制单元，半桥驱动单元和变压器单元。 前级电压调节单元接收输入功率，调光信号和反馈信号。 前级电压调整单元根据调光信号改变输入电源的电压，并根据反馈信号进行反馈调整。 在本发明中，由占空比调制单元生成的周期信号不随着调光信号和反馈信号而变化。 因此，半桥驱动单元可以恒定工作在零电压开关状态，驱动变压器单元输出驱动电力。 因此，本发明可以降低开关损耗并增加负载和电子元件的使用寿命。