公开(公告)号：US09318949B2

公开(公告)日：2016-04-19

申请号：US13626892

申请日：2012-09-26

Applicant: Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

Inventor： Lin-Lin Gu ,  Chuan-Yun Wang ,  Ming Xu ,  Ju-Lu Sun

IPC: H02M1/42 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M1/4225 ,  H02M3/156 ,  H02M2001/0025 ,  Y02B70/126

Abstract: An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in the AC-to-DC power supply apparatus convert an AC input voltage in response to a driving signal, so as to generate a DC output voltage; sampling a rectified voltage relating to the AC input voltage, so as to provide a sampling signal; providing an output feedback signal relating to an output of the AC-to-DC converter; multiplying the sampling signal by the output feedback signal, so as to provide a product signal; performing a signal modulation on the product signal, so as to generate the driving signal to control a switching of a main power switch in the AC-to-DC converter; and performing an amplitude-limiting process on the sampling signal or the product signal.

Abstract translation: 提供了一种AC至DC电源装置及其功率控制结构及其方法。 所提供的方法包括：使AC-DC转换器响应于驱动信号转换AC输入电压，以产生DC输出电压; 对与AC输入电压有关的整流电压进行采样，以提供采样信号; 提供与所述AC-DC转换器的输出有关的输出反馈信号; 将采样信号乘以输出反馈信号，以提供产品信号; 对产品信号执行信号调制，以产生驱动信号以控制AC-DC转换器中的主电源开关的切换; 对采样信号或产品信号执行限幅处理。

公开(公告)号：US09288857B2

公开(公告)日：2016-03-15

申请号：US14332397

申请日：2014-07-16

Applicant: FSP TECHNOLOGY INC.

Inventor： Chun-Chi Chiu

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0848

Abstract: A LED driving apparatus and a LED illumination system using the same are provided. The LED driving apparatus adapted to drive a LED load having at least one power specification includes a driving circuit, an output detecting circuit and an output adjusting circuit. The driving circuit provides an adjustable output current for driving the LED load. The output detecting circuit is coupled to the driving circuit and the LED load for detecting a driving voltage of the LED load to generate a first detecting signal. The driving circuit drives the LED load under a constant current in response to the first detecting signal. The output adjusting circuit is coupled to the output detecting circuit. The output adjusting circuit is controlled to adjust a signal level of the first detecting signal, such that the adjustable output current has at least one current adjusting range.

Abstract translation: 提供了一种LED驱动装置和使用该LED驱动装置的LED照明系统。 适于驱动具有至少一个功率规格的LED负载的LED驱动装置包括驱动电路，输出检测电路和输出调整电路。 驱动电路提供可调节的输出电流来驱动LED负载。 输出检测电路耦合到驱动电路和LED负载，用于检测LED负载的驱动电压以产生第一检测信号。 驱动电路响应于第一检测信号在恒定电流下驱动LED负载。 输出调节电路耦合到输出检测电路。 控制输出调节电路以调整第一检测信号的信号电平，使得可调输出电流具有至少一个电流调节范围。

公开(公告)号：US09030846B2

公开(公告)日：2015-05-12

申请号：US13629612

申请日：2012-09-28

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

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

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33592 ,  H02M2001/0032 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y02B70/16 ,  Y02P80/112

Abstract: A resonant power conversion apparatus including a transformer-based resonant converter and first and second switch control units is provided. The transformer-based resonant converter includes a primary switch circuit and a secondary output circuit configured to provide an output voltage to a load. The first switch control unit is configured to control an ON/OFF operation of the primary switch circuit in response to a status of the load. The second switch control unit is configured to determine whether to activate or inactivate the first switch control unit. When the status of the load is the light-loading or the no-loading, the first switch control unit intermittently controls the ON/OFF operation of the primary switch circuit, and meanwhile, the first switch control unit is inactivated during the primary switch circuit is disabled, so as to substantially reduce the light-loading or no-loading loss of the resonant power conversion apparatus.

Abstract translation: 提供一种包括基于变压器的谐振转换器和第一和第二开关控制单元的谐振功率转换装置。 基于变压器的谐振变换器包括一个初级开关电路和一个辅助输出电路，其被配置为向负载提供输出电压。 第一开关控制单元被配置为响应于负载的状态来控制一次开关电路的接通/断开操作。 第二开关控制单元被配置为确定是否激活或停用第一开关控制单元。 当负载状态为轻负载或无负载时，第一开关控制单元间歇地控制一次开关电路的接通/断开操作，同时第一开关控制单元在一次开关电路期间失活 被禁用，以便大幅度地减少谐振功率转换装置的轻负载或无负载损耗。

公开(公告)号：US08958219B2

公开(公告)日：2015-02-17

申请号：US13615636

申请日：2012-09-14

Applicant: Ming Xu ,  Chuan-Yun Wang

Inventor： Ming Xu ,  Chuan-Yun Wang

IPC: H02M7/48 ,  H02M7/5388 ,  H02J3/38 ,  H02M7/493 ,  H02M1/12

CPC classification number: H02M7/5388 ,  H02J3/383 ,  H02M7/493 ,  H02M2001/123 ,  Y02E10/563

Abstract: A non-isolated inverter including a DC input-side, a capacitor connected in parallel with the DC input-side, an AC output-side connected in parallel with a load, and first and second bridge-arm units is provided. The first and second bridge-arm units are connected in parallel with the capacitor. The first bridge-arm unit includes a series forward-connection of upper and lower switch-elements, where a common-node of upper and lower switch-elements and a supplying terminal of the second bridge-arm unit are respectively connected to two terminals of the AC output-side. The upper and lower switch-elements are respectively turned on in positive and negative half cycles of an output current of the non-isolated inverter, and the generation of common-mode currents in the non-isolated inverter is suppressed under a clamping action between the upper and lower switch-elements due to there are no high-frequency voltages on the parasitic-capacitors from the non-isolated inverter to the ground.

Abstract translation: 提供一种非隔离逆变器，包括DC输入侧，与DC输入侧并联连接的电容器，与负载并联连接的AC输出侧，以及第一和第二桥臂单元。 第一和第二桥臂单元与电容器并联连接。 第一桥臂单元包括上下开关元件的串联前向连接，其中上下开关元件的共同节点和第二桥臂单元的供电端子分别连接到第二桥臂单元的两个端子 交流输出端。 上下开关元件分别在非隔离逆变器的输出电流的正半周期和负半周期内导通，并且在非隔离逆变器的输出电流之间的钳位动作下抑制了共模电流的产生 上，下开关元件由于在非隔离逆变器到地的寄生电容上没有高频电压。

公开(公告)号：US08912782B2

公开(公告)日：2014-12-16

申请号：US13025159

申请日：2011-02-11

Applicant: Chih-Chang Tsai

Inventor： Chih-Chang Tsai

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M2001/007

Abstract: A DC-to-DC converter adapted for generating a power voltage required by a load and including a buck circuit and a boost circuit is provided. The buck circuit is used for receiving a DC input voltage, and outputting the power voltage by performing a buck process to the DC input voltage, or directly outputting the DC input voltage according to a first control signal. The boost circuit is used for receiving the power voltage or the DC input voltage both output from the buck circuit, and outputting the power voltage to the load by performing a boost process to the DC input voltage output from the buck circuit, or directly outputting the power voltage output from the buck circuit to the load according to a second control signal.

Abstract translation: 提供一种用于产生负载所需的电源电压并且包括降压电路和升压电路的DC-DC转换器。 降压电路用于接收直流输入电压，并通过对直流输入电压进行降压处理，或者根据第一控制信号直接输出直流输入电压来输出电源电压。 升压电路用于接收从降压电路输出的电源电压或直流输入电压，并且通过对从降压电路输出的直流输入电压进行升压处理，将电源电压输出到负载，或直接输出 根据第二控制信号从降压电路输出到负载的电源电压。

公开(公告)号：US08860471B2

公开(公告)日：2014-10-14

申请号：US13624964

申请日：2012-09-23

Applicant: Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

Inventor： Ming Xu ,  Jing-Peng Zhu ,  Ju-Lu Sun ,  Zhang-He Nan

IPC: H03K3/00 ,  H03K17/691 ,  H02M1/08 ,  H03K17/16 ,  H02M1/32 ,  H03K17/0812

CPC classification number: H02M1/08 ,  H02M1/32 ,  H03K17/08122 ,  H03K17/161 ,  H03K17/691

Abstract: An isolated gate driver including a driving control circuit, an isolated transformer, an anti-circuit and a secondary processing circuit is provided. The driving control circuit is configured to generate a driving PWM signal for driving a power switch tube. The isolated transformer has a primary winding and a secondary winding. The anti-circuit is connected between the driving control circuit and the primary winding of the isolated transformer, and is configured to suppress a variation of an induced voltage in the secondary winding of the isolated transformer when a duty cycle of the driving PWM signal is sharply decreased. The secondary processing circuit is connected in parallel with the secondary winding of the isolated transformer, and is configured to perform a voltage clamping action on a gate-source voltage of the power switch tube when the duty cycle of the driving PWM signal is sharply decreased.

Abstract translation: 提供了包括驱动控制电路，隔离变压器，防电路和二次处理电路的隔离栅极驱动器。 驱动控制电路被配置为产生用于驱动电源开关管的驱动PWM信号。 隔离变压器具有初级绕组和次级绕组。 防电路连接在驱动控制电路和隔离变压器的初级绕组之间，并且被配置为当驱动PWM信号的占空比急剧减小时，抑制隔离变压器的次级绕组中的感应电压的变化 减少。 二次处理电路与隔离变压器的次级绕组并联连接，并且被配置为当驱动PWM信号的占空比急剧减小时，对功率开关管的栅极 - 源极电压进行钳位动作。

公开(公告)号：US20140098452A1

公开(公告)日：2014-04-10

申请号：US14049208

申请日：2013-10-08

Applicant: FSP TECHNOLOGY INC.

Inventor： Lung-Chi Wei ,  Ching-Chia Chu

IPC: H02H9/02

CPC classification number: H02H9/02 ,  H02H9/001

Abstract: A power supply apparatus is provided, and which includes a power conversion circuit, a control chip with soft-start function and a short protection circuit. The power conversion circuit is configured to provide a DC output voltage to a load in response to an output pulse-width-modulation (PWM) signal. The control chip is operated under a DC input voltage, and configured to generate the output PWM signal to control the operation of the power conversion circuit. The short protection circuit is configured to pull-down the level of a soft-start pin of the control chip, so as to substantially/significantly reduce the frequency and duty cycle of the output PWM signal, and then substantially/significantly reduce the current flowing through the shorted load.

Abstract translation: 提供一种电源装置，其包括功率转换电路，具有软启动功能的控制芯片和短路保护电路。 功率转换电路被配置为响应于输出脉宽调制（PWM）信号向负载提供DC输出电压。 控制芯片在DC输入电压下工作，并且被配置为产生输出PWM信号以控制功率转换电路的操作。 短路保护电路被配置为下拉控制芯片的软启动引脚的电平，以便基本上/显着地降低输出PWM信号的频率和占空比，然后基本上/显着地减小电流流动 通过短路负载。

公开(公告)号：US20140077603A1

公开(公告)日：2014-03-20

申请号：US14028553

申请日：2013-09-17

Applicant: FSP TECHNOLOGY INC.

Inventor： Tung-Jung Chuang ,  Shung-Hung Wu

IPC: H02J9/06

CPC classification number: H02J9/061 ,  H02J1/10 ,  Y10T307/615

Abstract: A power supply apparatus is provided. The provided power supply apparatus has a power backup mechanism, in which a main DC power and a backup DC power are switched by a fast switching circuit composed of a plurality of switch transistors. Since the switching time of each switch transistor is substantially shorter than that of the conventional relay, the backup DC power can be conducted to the input of the multi-output DC-DC converter at a quite-short time even though the main DC power is abnormal. Accordingly, the output of the multi-output DC-DC converter still can continuously and stably supply the operation power required by the load.

Abstract translation: 提供电源装置。 所提供的电源装置具有电力备用机构，其中通过由多个开关晶体管组成的快速开关电路来切换主DC电力和备用DC电力。 由于每个开关晶体管的开关时间明显短于传统继电器的切换时间，因此即使主直流电源为直流电源，备用直流电源也可以在相当短的时间内传导到多输出DC-DC转换器的输入端 不正常。 因此，多输出DC-DC转换器的输出能够连续稳定地供给负载所需的动作功率。

公开(公告)号：US08634202B2

公开(公告)日：2014-01-21

申请号：US12728281

申请日：2010-03-22

Applicant: Shao-Feng Lu

Inventor： Shao-Feng Lu

IPC: H05K1/11 ,  H05K1/14 ,  H05K1/02

CPC classification number: H05K1/0263 ,  H05K3/32 ,  H05K2201/10272 ,  H05K2201/10356 ,  H05K2201/10962

Abstract: A power transforming circuit board includes a substrate and at least one power output structure. The substrate has at least one power transforming circuit and at least one pair of power input holes. The power output structure is disposed on the substrate. Each power output structure is electrically connected with one corresponding power transforming circuit. Each power output structure has at least one cable connecting hole. The normal direction of each power output structure is oriented at an angle with respect to the normal direction of the substrate.

Abstract translation: 功率变换电路板包括衬底和至少一个功率输出结构。 基板具有至少一个功率变换电路和至少一对电源输入孔。 功率输出结构设置在基板上。 每个功率输出结构与一个对应的功率变换电路电连接。 每个功率输出结构具有至少一个电缆连接孔。 每个功率输出结构的法线方向相对于衬底的法线方向成一定角度。

公开(公告)号：US08587963B2

公开(公告)日：2013-11-19

申请号：US12356838

申请日：2009-01-21

Applicant: Zhanghe Nan ,  Ming Xu ,  Qiao Liang Chen

Inventor： Zhanghe Nan ,  Ming Xu ,  Qiao Liang Chen

IPC: H02M3/335

CPC classification number: H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475

Abstract: A resonant converter equipped with a phase shifting output circuit includes a resonant circuit to receive input power and regulate to become at least one resonant power, a switch unit to switch an ON period for the input power to pass through the resonant circuit and a power transformation circuit to regulate the resonant power and output a transformed power. The resonant converter further has a primary output circuit and at least one secondary output circuit. The primary output circuit regulates the transformed power to become a primary output power. A resonant control unit captures a feedback signal from the primary output circuit and generates a resonant control signal. A phase shifting control unit receives the resonant control signal and regulate to become a phase shifting driving signal. The secondary output circuit is controlled by the phase shifting driving signal and provides a secondary output power.

Abstract translation: 配备有相移输出电路的谐振转换器包括：谐振电路，用于接收输入功率并调节成至少一个谐振功率;开关单元，用于切换输入功率的通过周期以通过谐振电路;以及功率变换 电路来调节谐振功率并输出变换功率。 谐振转换器还具有初级输出电路和至少一个次级输出电路。 主输出电路调节变换后的功率成为主输出功率。 谐振控制单元捕获来自主输出电路的反馈信号并产生谐振控制信号。 相移控制单元接收谐振控制信号并调节成为相移驱动信号。 次级输出电路由相移驱动信号控制，并提供次级输出功率。