公开(公告)号：US07781986B2

公开(公告)日：2010-08-24

申请号：US12024904

申请日：2008-02-01

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

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

IPC: H05B37/02

CPC classification number: H05B41/2822

Abstract: The present invention includes a PWM unit, a switch unit, a resonance unit, a transformer, a feedback unit and a frequency control unit, wherein the switch unit obtains a DC power from a power source, the PWM unit produces a working cycle signal to drive the switch unit to convert the DC power into a pulse power and the resonance unit converts the pulse power into a driving power for providing to the transformer to convert thereof into an output power, characterized in that when the resonance unit is under a starting frequency and a working frequency higher than the starting voltage, a starting voltage gain and a working voltage gain respectively corresponding thereto are produced, wherein the starting voltage gain is larger than the working voltage gain, so that the larger starting voltage gain can produce the output power with higher voltage to smoothly initiate the lamp tube set.

Abstract translation: 本发明包括PWM单元，开关单元，谐振单元，变压器，反馈单元和频率控制单元，其中开关单元从电源获得DC功率，PWM单元产生工作周期信号 驱动开关单元将DC电力转换成脉冲功率，并且谐振单元将脉冲功率转换为驱动功率以提供给变压器以将其转换为输出功率，其特征在于，当谐振单元处于起始频率 并且产生高于起始电压的工作频率，分别对应于其起始电压增益和工作电压增益，其中起始电压增益大于工作电压增益，使得较大的起始电压增益可以产生输出功率 具有较高的电压，以顺利启动灯管组。

公开(公告)号：US20080310196A1

公开(公告)日：2008-12-18

申请号：US11812208

申请日：2007-06-15

Applicant: Kuo-Fan Lin

Inventor： Kuo-Fan Lin

IPC: H02M1/00

CPC classification number: H02M1/36 ,  H02M1/4225 ,  H02M3/33507 ,  Y02B70/126 ,  Y10S323/901

Abstract: The present invention discloses a method and a circuit for controlling a start-up cycle of an integrated circuit in a circuit system. The method and circuit determine whether or not an input power of the circuit system and a bias voltage power of the integrated circuit have reached a normal operating voltage range to control the bias voltage power to produce a start-up cycle of the integrated circuit. The method and circuit also provides a protection mechanism for an overload of the circuit system overload, so that the integrated circuit can moderate surges and prevent damages.

Abstract translation: 本发明公开了一种用于控制电路系统中的集成电路的启动周期的方法和电路。 该方法和电路确定电路系统的输入功率和集成电路的偏置电压功率是否已经达到正常工作电压范围，以控制偏置电压功率以产生集成电路的启动周期。 该方法和电路还为电路系统过载的过载提供保护机制，使集成电路可以缓和浪涌并防止损坏。

公开(公告)号：US12224659B2

公开(公告)日：2025-02-11

申请号：US18102784

申请日：2023-01-30

Applicant: FSP TECHNOLOGY INC.

Inventor： Che-Min Lin ,  Kuo-Chieh Chan ,  Kuan-Jung Lee ,  Chi-Chang Lien ,  Ching-Chia Chu

IPC: H02J7/00 ,  H02M1/32 ,  H02M3/335

Abstract: A charging device and a safety function control circuit and method thereof are provided. When a charging device is not connected to a load, a converted voltage value of a power connection terminal of the charging device is kept to be lower than a safe voltage value so as to maintain a safe mode. The safety function control circuit includes a first control module and a second control module for constant voltage control. The first control module and the second control module perform matching control on a power conversion circuit of the charging device, and in case of a single fault of one of the control modules, the other module is still capable of keeping the converted voltage value to be less than the safe voltage value. Thus, it is ensured that the safe mode stays functional in case of a concurrency of both a single hardware fault and a single firmware fault.

公开(公告)号：US20230299574A1

公开(公告)日：2023-09-21

申请号：US18184461

申请日：2023-03-15

Applicant: FSP TECHNOLOGY INC.

Inventor： Lung-Chi WEI ,  Mao-Kuan LIN

IPC: H02H7/12 ,  H05K7/14

CPC classification number: H02H7/12 ,  H05K7/1432

Abstract: A power supply device includes a conversion module, a plastic case and an inorganic material, and the conversion module includes an input end, a potential ignition source, a conversion circuit and an output end. The input end is configured to receive an input source, and the potential ignition source is configured to suppress a surge of the input source. The conversion circuit is configured to convert the input source into an output source, and the output end is configured to provide the output source to a load. The plastic case accommodates the conversion module, and the plastic case includes an inner surface. The inorganic material is configured between the potential ignition source and the inner surface, and a distance between the potential ignition source and the inner surface is less than 13 mm.

公开(公告)号：US11456549B2

公开(公告)日：2022-09-27

申请号：US16742914

申请日：2020-01-15

Applicant: FSP TECHNOLOGY INC.

Inventor： Chien-Li Tsai ,  Yao-Cheng Tsai

IPC: H01R12/70 ,  G06F1/18

Abstract: A power backplane assembly is adapted to be connected to a power supply. The power supply outputs a first voltage. The power backplane assembly includes a backplane body, a conversion circuit board, and an output circuit board. The backplane body is for plugging in the power supply. The conversion circuit board is electrically connected to the backplane body. The backplane body is adapted to deliver the first voltage to the conversion circuit board. The conversion circuit board converts the first voltage into a second voltage. The output circuit board is electrically connected to the conversion circuit board and includes a first output connector and a second output connector. The first output connector is configured to output the first voltage, and the second output connector is at least configured to output the second voltage. A power supply module which has the power backplane assembly is also provided.

公开(公告)号：USD927481S1

公开(公告)日：2021-08-10

申请号：US29713751

申请日：2019-11-19

Applicant: FSP TECHNOLOGY INC.

Designer： Mei-Ling Lin ,  Li Kuan

公开(公告)号：US10970686B2

公开(公告)日：2021-04-06

申请号：US16244112

申请日：2019-01-10

Applicant: FSP TECHNOLOGY INC.

Inventor： Ting-Chuan Chu ,  Hsin-Chu Liang

IPC: G06Q20/06 ,  H02J13/00 ,  G01R1/00

Abstract: A testing power reuse system including a testing device, a virtual currency calculating circuit, and a power reuse circuit is provided. The power reuse circuit is coupled to the testing device through a first interface circuit and is coupled to the virtual currency calculating circuit through a second interface circuit. The power reuse circuit is configured to receive power generated by performing a testing operation on the testing device through the first interface circuit and provide the power to the virtual currency calculating circuit through the second interface circuit. The virtual currency calculating circuit is driven by the power to perform a virtual currency calculating operation. A power reuse circuit and a testing power reuse method are also provided.

公开(公告)号：US10952334B2

公开(公告)日：2021-03-16

申请号：US16294954

申请日：2019-03-07

Applicant: FSP TECHNOLOGY INC.

Inventor： Ting-Chuan Chu ,  Chia-Lung Le

IPC: A47B81/00 ,  H05K5/00 ,  H05K5/02

Abstract: A power supply fixing structure being suitable for connecting an elongated type power supply to a connection structure of a casing is provided. The power supply fixing structure includes a connecting component and an interconnect structure formed at an outer casing of the elongated type power supply. The connecting component includes a first connecting part for connecting to a connection structure and a second connecting part for connecting to the interconnect structure.

公开(公告)号：US20200099219A1

公开(公告)日：2020-03-26

申请号：US16504312

申请日：2019-07-07

Applicant: FSP TECHNOLOGY INC.

Inventor： Yaw-Chien Huang ,  Chun-Hao Yu ,  Kuo-Chieh Chan

IPC: H02H9/02 ,  H02M1/32 ,  G01R15/04

Abstract: A power apparatus, a current detecting circuit and a current detecting method are provided. The power apparatus includes a power conversion circuit and the current detecting circuit. The power conversion circuit generates an output current. The current detecting circuit includes first and second current sensing resistors and a control circuit. The first current sensing resistor and the second current sensing resistor sense the output current to generate first and second sensing voltage, respectively. The control circuit receives the first sensing voltage and the second sensing voltage, and converts the first sensing voltage and the second sensing voltage respectively into a first current sensing value and a second current sensing value. The control circuit triggers a protection mechanism when the first current sensing value is greater than a first overcurrent protection value. In the case where the first current sensing value is not greater than the first overcurrent protection value, the control circuit triggers the protection mechanism if the second current sensing value is greater than a second overcurrent protection value. The first overcurrent protection value is greater than the second overcurrent protection value.

公开(公告)号：US10077780B2

公开(公告)日：2018-09-18

申请号：US14561152

申请日：2014-12-04

Applicant: FSP TECHNOLOGY INC.

Inventor： Chien-Li Tsai

IPC: F04D27/00

CPC classification number: F04D27/004

Abstract: A method for controlling a fan speed of an electronic apparatus and the electronic apparatus using the same are provided. The method includes: detecting an input voltage, an output current, and a working temperature of the electronic apparatus; calculating a target speed of the fan according to the input voltage, the output current, and the working temperature; providing a speed control signal indicating the target speed to drive the fan and obtaining a fan speed signal indicating an actual speed of the fan; and performing a close-loop control based on the fan speed signal, so that the actual speed is adjusted to the target speed.