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：US08531129B2

公开(公告)日：2013-09-10

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：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：US20130014385A1

公开(公告)日：2013-01-17

申请号：US13545985

申请日：2012-07-11

Applicant: Ming Xu ,  Chao Sun

Inventor： Ming Xu ,  Chao Sun

IPC: H01R43/00

CPC classification number: H02M1/44 ,  Y10T29/49117

Abstract: A grounding method adapted for a power supply (for example, an adapter power supply, a three-phase AC-to-DC power supply, a DC-to-DC power supply, . . . , etc., but not limited thereto) is provided, and which includes: (a) providing a circuit body corresponding to the power supply, where the circuit body has an input part and an output part; (b) disposing the circuit body in a shielding layer; and (c) making at least one of the input part and the output part to be coupled with the shielding layer through at least one capacitor. In this case, the present invention can effectively solve the problem of common-mode interferences in the power supply.

Abstract translation: 适用于电源的接地方法（例如，适配器电源，三相AC-DC电源，DC-DC电源等，但不限于此） 并且其包括：（a）提供与电源相对应的电路体，其中电路主体具有输入部分和输出部分; （b）将电路体设置在屏蔽层中; 和（c）使输入部分和输出部分中的至少一个通过至少一个电容器与屏蔽层耦合。 在这种情况下，本发明能够有效地解决电源中的共模干扰的问题。

公开(公告)号：US20120287678A1

公开(公告)日：2012-11-15

申请号：US13468017

申请日：2012-05-09

Applicant: Ming Xu ,  Xinlei Li

Inventor： Ming Xu ,  Xinlei Li

IPC: H02M3/335

CPC classification number: H02M3/158 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1425 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: A non-isolated resonant converter is provided. The provided non-isolated resonant converter includes a switch circuit, a resonant circuit and a rectifying-filtering circuit. The switch circuit, the resonant circuit and the rectifying-filtering circuit are sequentially connected. The resonant circuit includes an auto-transformer, a capacitor and an inductor, wherein the capacitor and the inductor are connected to the auto-transformer. The configuration of the provided non-isolated resonant converter has small size, low loss and high power density.

Abstract translation: 提供非隔离谐振变换器。 提供的非隔离谐振转换器包括开关电路，谐振电路和整流滤波电路。 开关电路，谐振电路和整流滤波电路依次连接。 谐振电路包括自耦变压器，电容器和电感器，其中电容器和电感器连接到自耦变压器。 所提供的非隔离谐振转换器的配置具有体积小，损耗低，功率密度高的特点。

公开(公告)号：US20120032623A1

公开(公告)日：2012-02-09

申请号：US13179575

申请日：2011-07-11

Applicant: Chih-Chang Tsai

Inventor： Chih-Chang Tsai

IPC: H02P1/04

CPC classification number: H02P6/06 ,  G06F1/20

Abstract: A method of controlling fan speed is provided. The method includes: setting a target speed of the fan; providing an actual control speed signal and using the actual control speed signal to drive the fan so as to obtain an actual speed of the fan; determining whether the actual speed of the fan is equal to the set target speed; and when the actual speed of the fan is equal to the set target speed, continuously using the provided actual control speed signal to drive the fan, otherwise, gradually compensating the intensity of the provided actual control speed signal until the actual speed of the fan is equal to the set target speed after the fan is driven by the gradually compensated actual control speed signal.

Abstract translation: 提供了一种控制风扇转速的方法。 该方法包括：设定风扇的目标速度; 提供实际的控制速度信号并使用实际控制速度信号来驱动风扇以获得风扇的实际速度; 确定风扇的实际速度是否等于设定的目标速度; 并且当风扇的实际速度等于设定的目标速度时，连续使用所提供的实际控制速度信号来驱动风扇，否则逐渐补偿所提供的实际控制速度信号的强度，直到风扇的实际速度为 等于通过逐渐补偿的实际控制速度信号驱动风扇后的设定目标速度。

公开(公告)号：US08102165B2

公开(公告)日：2012-01-24

申请号：US12496025

申请日：2009-07-01

Applicant: Linlin Gu ,  Ming Xu ,  Xinbo Ruan ,  Kai Yao

Inventor： Linlin Gu ,  Ming Xu ,  Xinbo Ruan ,  Kai Yao

IPC: G05F1/40 ,  G05F1/10 ,  G05F5/00

CPC classification number: H02M1/14 ,  H02M1/4225 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power factor correction (PFC) circuit includes an inductor, a diode, a storage capacitor, a switch and a control unit. The input power has a voltage fluctuation V1. The storage component absorbs a first voltage fluctuation and a switch regulation circuit absorbs a second voltage fluctuation V2. Thus output voltage from the PFC circuit is not a conventional constant voltage but a voltage of a great ripple. The PFC circuit further has a harmonic regulation unit. The harmonic regulation unit generates a voltage signal containing 3rd harmonic. The control unit receives a feedback signal and the voltage signal containing 3rd harmonic to generate a reference to the inductor current. Therefore, the inductor current contains 3rd harmonic. Thus power fluctuation absorbed and released by the capacitor is smaller. As a result energy storage capacitance can be reduced significantly.

Abstract translation: 功率因数校正（PFC）电路包括电感器，二极管，存储电容器，开关和控制单元。 输入功率具有电压波动V1。 存储部件吸收第一电压波动，开关调节电路吸收第二电压波动V2。 因此，来自PFC电路的输出电压不是常规的恒定电压，而是具有很大纹波的电压。 PFC电路还具有谐波调节单元。 谐波调节单元产生包含三次谐波的电压信号。 控制单元接收反馈信号和包含三次谐波的电压信号以产生对电感器电流的参考。 因此，电感电流包含三次谐波。 因此，由电容器吸收和释放的功率波动较小。 因此能够显着降低储能电容。

公开(公告)号：US20110227548A1

公开(公告)日：2011-09-22

申请号：US12727254

申请日：2010-03-19

Applicant: Chih-Chang Tsai

Inventor： Chih-Chang Tsai

IPC: G05F1/10

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.

Abstract translation: 提供电源装置。 供电装置包括并联连接的两个供电装置，以便同时供应电子产品运行所需的电力。 本发明提供的供电装置可以稳定/精确地输出期望的直流输出电压到电子产品，并且当电力供应商中的一个电压过高时，可以进一步预先增加在另一供电器内产生的主电力，从而避免 在直流输出电压中出现过大的电压降。

公开(公告)号：US20110226517A1

公开(公告)日：2011-09-22

申请号：US12728281

申请日：2010-03-22

Applicant: Shao-Feng Lu

Inventor： Shao-Feng Lu

IPC: H05K1/11

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。