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：US20100265745A1

公开(公告)日：2010-10-21

申请号：US12425120

申请日：2009-04-16

Applicant: Ming XU ,  Bo ZHANG ,  Kai YAO ,  Qiaoliang CHEN

Inventor： Ming XU ,  Bo ZHANG ,  Kai YAO ,  Qiaoliang CHEN

IPC: H02M7/06

CPC classification number: H02M1/4258 ,  Y02B70/126

Abstract: The present invention discloses a parameter configuration method for elements of a PFC function converter. The converter has a PFC circuit modulating an input power into a DC modulated power and a transformer transforming the DC modulated power into an output power. The method of the present invention comprises a storage capacitor configuration procedure, a storage inductor configuration procedure and a verification procedure. The storage capacitor configuration procedure predetermines a test voltage and a rated bus voltage lower than the test voltage, determines a parameter of the storage capacitor according to the test voltage and uses the storage capacitor to supply the rated bus voltage. The storage inductor configuration procedure determines an inductance of a storage inductor to match the storage inductor and the primary coil of the transformer work in a discontinuous current mode. The verification procedure verifies whether the power factor of the converter exceeds 0.9.

Abstract translation: 本发明公开了一种PFC功能转换器元件的参数配置方法。 该转换器具有将输入功率调制成DC调制功率的PFC电路和将DC调制功率变换为输出功率的变压器。 本发明的方法包括存储电容器配置过程，存储电感器配置过程和验证过程。 存储电容器配置步骤预先确定测试电压和低于测试电压的额定总线电压，根据测试电压确定存储电容器的参数，并使用存储电容器提供额定总线电压。 存储电感器配置过程确定存储电感器与存储电感器和变压器的初级线圈匹配的电感以不连续电流模式工作。 验证程序验证转换器的功率因数是否超过0.9。

公开(公告)号：US20090039998A1

公开(公告)日：2009-02-12

申请号：US11883000

申请日：2007-08-08

Applicant: Chih-Shien Liu ,  Wen-Sen Hsien ,  Chih-Ming Hu

Inventor： Chih-Shien Liu ,  Wen-Sen Hsien ,  Chih-Ming Hu

IPC: H01F27/32

CPC classification number: H01F30/04 ,  H01F27/263 ,  H01F27/266 ,  H01F27/324 ,  H01F2027/297

Abstract: The present invention is related to an improved transformer structure including a main body and, accommodated in the main body, a first winding frame and two winding frames. Hollow portions of the first winding frame and each of the second winding frames are combined with openings on the main body, for forming a primary side passage in a longitudinal direction and two secondary side passages in a lateral direction, so as to penetrate respectively a first magnetic material into the primary side passage and a second magnetic material into the two secondary side passages. Through the longitudinal primary side passage and the lateral secondary side passages, the primary and the secondary side winding can have a proper interval therebetween for achieving a stable output, so that a high voltage can be directly applied to the transformer for driving the large size LCD back light module for improving the efficiency.

Abstract translation: 本发明涉及一种改进的变压器结构，其包括主体并且容纳在主体中，第一绕组框架和两个绕组框架。 第一绕线架和第二绕线框架的空心部分与主体上的开口组合，用于沿纵向方向形成初级侧通道和在横向上形成两个次级侧通道，以分别穿过第一 磁性材料进入初级侧通道，第二磁性材料进入两个次级侧通道。 通过纵向一次侧通道和横向次级侧通道，初级侧和次级侧绕组之间可以具有适当的间隔以实现稳定的输出，从而可以将高电压直接施加到用于驱动大尺寸LCD的变压器 背光模块，提高效率。

公开(公告)号：US20080304195A1

公开(公告)日：2008-12-11

申请号：US11806935

申请日：2007-06-05

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02H3/00

CPC classification number: H02M1/32 ,  H02M1/4225 ,  H02M2001/0032 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/16

Abstract: A power abnormal protection circuit includes a power detection unit, a voltage drop correction unit, a drop out detection unit, a delay unit and a delay masking unit. By detecting an input power average value of a power supply occurring of a brown out condition can be determined. The power supply includes a power factor correction unit which has an output capacitor. By detecting the voltage of the output capacitor a drop out condition can be determined. When a power abnormal condition occurs all units of the power supply can be set off sequentially according to a delay time to protect circuit elements and a connecting computer.

Abstract translation: 功率异常保护电路包括功率检测单元，电压降校正单元，脱出检测单元，延迟单元和延迟掩蔽单元。 通过检测发生褐色条件的电源的输入功率平均值可以被确定。 电源包括具有输出电容器的功率因数校正单元。 通过检测输出电容器的电压，可以确定掉电条件。 当发生电源异常情况时，可以根据延迟时间顺序地关闭电源的所有单元，以保护电路元件和连接的计算机。

公开(公告)号：US07391626B1

公开(公告)日：2008-06-24

申请号：US11808411

申请日：2007-06-08

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M3/22

CPC classification number: H02M3/33561

Abstract: A chop-wave control circuit includes a feedback unit, a ramp generation unit, a latchup unit and a voltage transformation unit that is used on a forward transformation circuit which includes at least a main output unit and at least one auxiliary output unit. The feedback unit captures a feedback signal from an output end of the auxiliary output unit to generate a slope regulation signal. The ramp generation unit alters the trigger time sequence of the latchup unit through the slope regulation signal to set an auxiliary flywheel switch ON or OFF. The voltage transformation unit detects potential variations of the latchup unit to set a chop-wave switch ON or OFF. By controlling the auxiliary flywheel switch and the chop-wave switch a power output cycle of the auxiliary output unit can be formed.

Abstract translation: 斩波控制电路包括反馈单元，斜坡发生单元，闭锁单元和电压变换单元，其用于至少包括主输出单元和至少一个辅助输出单元的正向变换电路。 反馈单元从辅助输出单元的输出端捕获反馈信号以产生斜率调节信号。 斜坡发生单元通过斜坡调节信号改变闭锁单元的触发时间顺序，以设置辅助飞轮开关的ON或OFF。 电压变换单元检测闭锁单元的电位变化以将斩波开关设定为ON或OFF。 通过控制辅助飞轮开关和斩波开关，可以形成辅助输出单元的功率输出周期。

公开(公告)号：US12040717B2

公开(公告)日：2024-07-16

申请号：US17704293

申请日：2022-03-25

Applicant: FSP TECHNOLOGY INC.

Inventor： Lung-Chi Wei ,  Ching-Hung Kuo ,  Cheng-Han Tsai

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/32

CPC classification number: H02M3/33507 ,  H02M1/0009 ,  H02M1/32

Abstract: An electrical power conversion device, a function triggering circuit for the electrical power conversion device, and a function triggering method for the electrical power conversion device are provided. The function triggering circuit is coupled between the secondary side of the transformer and the control module and includes a current detection circuit, a delay circuit and a switching circuit. The current detection circuit senses the secondary side of the transformer to generate a detection signal of delay. Before steady-state duty of the transformer, the delay circuit causes an initial level to be higher than an internal level. After steady-state duty of the transformer, the switching circuit selectively generates a function triggering signal according to the detection signal. The function triggering signal is for triggering the control module to carry out an overcurrent protection operation. Therefore, the electrical power conversion device effectuates electrical power conversion precisely and steadily, provides precise overcurrent protection, and achieves low stand-by power consumption.

公开(公告)号：US12015332B2

公开(公告)日：2024-06-18

申请号：US17580603

申请日：2022-01-20

Applicant: FSP TECHNOLOGY INC.

Inventor： Chang-Hsun Chiang ,  Yung-Hsiang Shih

IPC: H02M1/00 ,  G01K7/22 ,  G06F1/3206 ,  G06F1/3296 ,  H02M1/08 ,  H02M1/42

CPC classification number: H02M1/0035 ,  G01K7/22 ,  G06F1/3206 ,  G06F1/3296 ,  H02M1/0006 ,  H02M1/0054 ,  H02M1/08 ,  H02M1/4208

Abstract: A power supply and a power saving method thereof are provided. The power saving method includes: utilizing a monitoring circuit within the power supply to generate a monitoring signal according to operating loading of the power supply; and utilizing a control signal generating circuit within the power supply to generate a control signal according to the monitoring signal, to drive at least two switch transistors within a circuitry within the power supply, wherein the switch transistors are connected in parallel.

公开(公告)号：US11990761B2

公开(公告)日：2024-05-21

申请号：US17984516

申请日：2022-11-10

Applicant: FSP TECHNOLOGY INC.

Inventor： Chien-Li Tsai ,  Chih-Fan Lin ,  Chih-Hsien Hsieh

IPC: H02J3/46 ,  H02J3/38 ,  H02M7/12

CPC classification number: H02J3/46 ,  H02J3/381 ,  H02M7/12

Abstract: A power supply system with current sharing includes a current sharing bus, a plurality of power supply units, and a plurality of controllers. The power supply units are connected to each other through the current sharing bus. Each power supply unit provides a current sharing signal value to the current sharing bus, and provides an output current to a load. Each controller receives current sharing signal values provided from other power supply units and current signal values corresponding to the output currents. When determining that the current signal value is less than a reference current sharing signal value, the controller increases an output voltage of the power supply unit to increase the output current. Otherwise, the controller decreases the output voltage to decrease the output current so that so that the output currents of the power supply units are shared to supply power to the load.

公开(公告)号：US11985765B2

公开(公告)日：2024-05-14

申请号：US17876570

申请日：2022-07-29

Applicant: FSP TECHNOLOGY INC.

Inventor： Che-Min Lin ,  Chia-Hua Liu ,  Ching-Kai Lin

IPC: H05K1/18 ,  H01F27/28 ,  H01F27/32

CPC classification number: H05K1/18 ,  H01F27/2828 ,  H01F27/32 ,  H05K2201/10015 ,  H05K2201/1003 ,  H05K2201/1006 ,  H05K2201/10166 ,  H05K2201/10189 ,  H05K2201/10522 ,  H05K2201/10545

Abstract: A power adapter includes a circuit board, an electromagnetic interference filter, a shielding element, a power factor correction (PFC) inductor, a transformer and heating elements. The circuit board has a front side and a back side corresponding to each other, and a first long side and a second long side parallel to each other. The front side of the circuit board is divided into a first region, a second region and a third region along an extending direction of the first long side. The electromagnetic interference filter is disposed in the first region and close to the first long side. The shielding element is disposed in the first region and close to the electromagnetic interference filter. The PFC inductor is disposed in the first region of the circuit board and close to the second long side. The PFC inductor has a first long axis. The transformer is disposed in the third region and close to the first long side. The transformer has a second long axis, and the first long axis is perpendicular to the second long axis. The heating elements are disposed at the back side of the circuit board.

公开(公告)号：US20240019919A1

公开(公告)日：2024-01-18

申请号：US18338257

申请日：2023-06-20

Applicant: FSP TECHNOLOGY INC.

Inventor： Chien-Li TSAI

IPC: G06F1/3206 ,  G06F8/65

CPC classification number: G06F1/3206 ,  G06F8/65

Abstract: A method of updating power firmware is applied to update power firmware when a power supply is powered. The method is executed by a microcontroller of the power supply, and the method includes steps of: planning a memory space in the microcontroller as a first space and a second space, wherein the first space stores a first program currently executing the power supply required by the power supply, emptying the second space before the power firmware is updated, writing a second program stored in a management system into the second space, switching the second space to the first space to complete updating the power firmware after the second program is completely written into the second space, and continuously outputting working power.