公开(公告)号：US20240365515A1

公开(公告)日：2024-10-31

申请号：US18388202

申请日：2023-11-09

Applicant: ACBEL POLYTECH INC.

Inventor： Chia-Hao LIN ,  Tse-Jung KUO ,  Min-Che TU

IPC: H05K7/20

CPC classification number: H05K7/2039

Abstract: A heat dissipating structure of a power supply is disposed on an inner side of a casing and has two heat dissipating covers configured to be connected with each other, and a heat dissipating sleeve annularly mounted on and around the two heat dissipating covers and disposed between the heat dissipating covers and the casing. The heat dissipating sleeve is able to be bent according to an internal structure of the casing for attaching to the casing and increasing contact area between the heat dissipating sleeve and the casing. The heat from an interior of the power supply can be conducted to the two heat dissipating covers for a first heat spreading and then to the heat dissipating sleeve for a second heat spreading. Thus, speed of heat dissipation to an exterior of the casing can be increased and temperature inside the power supply can be effectively reduced.

公开(公告)号：US11658581B1

公开(公告)日：2023-05-23

申请号：US17671988

申请日：2022-02-15

Applicant: ACBEL POLYTECH INC.

Inventor： Chia-An Yeh

IPC: H02M3/335

CPC classification number: H02M3/33576 ,  H02M3/33571 ,  H02M3/33592

Abstract: A power converter with an adjustable output voltage has an isolation DC/DC transformer, a primary side circuit connected to a primary coil of the isolation DC/DC transformer for transmitting an input AC power to the primary coil, and a secondary side circuit connected to a secondary coil of the isolation DC/DC transformer. The secondary side circuit includes a first output loop, a second output loop and a mode switch connected in the first output loop. When power consumption of a load is low, the mode switch is turned off to interrupt the first output loop so that the secondary side circuit generates a first output voltage with a low voltage level. When power consumption of a load is high, the mode switch is turned on and the secondary side circuit generates a second output voltage with a high voltage level. Without greatly increasing circuits, the power converter achieves wide-range voltage regulation.

公开(公告)号：US20210159770A1

公开(公告)日：2021-05-27

申请号：US16818406

申请日：2020-03-13

Applicant: Acbel Polytech Inc.

Inventor： Chia-An Yeh

IPC: H02M1/00

Abstract: A power supply device has a first output port, a second output port and a power delivery control module. The power delivery control module compares the first output voltage value and the second output voltage value to determine a reference voltage value, and determines the optimized voltage value according to the total output power value, the reference voltage value, and a rated output current of an AC/DC converting module. The power delivery control module controls the AC/DC converting module to convert the AC input voltage to an optimized voltage, so that when the first and second DC/DC converting modules receive the optimized voltage and convert it to the first and second output voltages respectively, the voltage drop is reduced, the conversion loss is reduced, and the conversion efficiency of the power supply device is improved.

公开(公告)号：US10804734B2

公开(公告)日：2020-10-13

申请号：US15725534

申请日：2017-10-05

Applicant: ACBEL POLYTECH INC.

Inventor： Jui-Yang Chiu ,  Cheng-Yen Yeh ,  Chien-Ting Cho

IPC: H02J9/06

Abstract: A redundant power supply system has power supplies and holdup control circuits. The power supplies are connected in parallel for connecting to an input capacitor of a load system. An OR-gate anti-reverse current element is connected between each of the power supplies and the input capacitor. The holdup control circuits correspondingly connect to the DC output sides of the power supplies. Each of the holdup control circuits has an inductor, an electronic switch and a controller. The inductor is connected in series to the OR-gate anti-reverse current element. The electronic switch is connected between the DC output side of the corresponding power supply and a node where the inductor and the OR-gate anti-reverse current element are connected. The controller turns on and off of the electronic switch according to the DC power output from the DC output sides, thereby prolonging the holdup time after a power failure.

公开(公告)号：US20200019222A1

公开(公告)日：2020-01-16

申请号：US16189284

申请日：2018-11-13

Applicant: ACBEL POLYTECH INC.

Inventor： Jen-Pei YIN

IPC: G06F1/28 ,  H03K17/00 ,  H02J50/10 ,  H02J9/06

Abstract: A power supply device includes a power output terminal, a power converter and an electronic circuit breaker. In view of operation of the electronic circuit breaker, when an electric appliance that acts as a load is connected between the power output terminal and a ground terminal, the electronic circuit breaker is activated to output voltage from the power converter to the power output terminal so as to charge the electric appliance. When the electric appliance is done with charging and is removed, the electronic circuit breaker is deactivated to prevent voltage of the power converter from being outputted to the power output terminal. Thus, even if the power output terminal is exposed, the power output terminal won't output power to result in electric shock because of users' inadvertent contact when no electric appliance is being charged, thereby enhancing operational safety.

公开(公告)号：US10097081B1

公开(公告)日：2018-10-09

申请号：US15880250

申请日：2018-01-25

Applicant: ACBEL POLYTECH INC.

Inventor： James D. Bucher, II ,  Alan D. Lauer ,  Emma C. Trzynka ,  Jason C. Dehn

IPC: H02M1/34 ,  H02M3/335 ,  H02M1/44

Abstract: The present application is a converter having a low loss snubber. The low loss snubber of the converter includes a clamping winding, a first capacitor, and a second capacitor. The clamping winding is magnetically coupled with a primary winding of a transformer of the converter. The primary winding to a secondary winding of the transformer leakage inductance energy is recovered by storing the energy in the second capacitor. When the second capacitor is discharging, the energy in the second capacitor may be further transferred to the first capacitor. When the first capacitor is discharging, energy in the first capacitor may be further returned to the power source. Therefore, the energy in the first capacitor and the energy in the second capacitor may not be consumed by a resistor, and power consumption of the low loss snubber may be decreased.

公开(公告)号：US20170170733A1

公开(公告)日：2017-06-15

申请号：US15368491

申请日：2016-12-02

Applicant: ACBEL POLYTECH INC.

Inventor： Andrew FERENCZ ,  Qun LU ,  Jui-Yang CHIU ,  Hsuan-An CHEN ,  Chia-An YEH

IPC: H02M3/24 ,  H02M1/42 ,  H02M7/04

CPC classification number: H02M3/33569 ,  H02J9/061 ,  H02M7/493

Abstract: A redundant power supply apparatus includes at least two power inlets, at least two power supply units, and a common component. Each power inlet is connected to an AC power source. Each power supply unit has an input side and the at least two power supply units having a common output side, each input side is connected to the power inlet, and each power supply unit is configured to convert the AC power source into a DC power source. The common component is connected at the common output side and configured to receive DC power sources. Accordingly, the redundant power supply apparatus is provided to improve reliability of redundant operations between multiple external power sources without using mechanical switches.

公开(公告)号：US20140159497A1

公开(公告)日：2014-06-12

申请号：US13708992

申请日：2012-12-08

Applicant: ACBEL POLYTECH INC.

Inventor： Wei-Dar Chen ,  Chung-Wei Yang

IPC: H02J1/00

CPC classification number: H02M1/32 ,  G06F1/188 ,  G06F1/28 ,  Y10T307/707

Abstract: A universal power supply system allows each board mounted DC power module or each AC/DC power supply device therein having identical dimensions and appearance to further have a specification setting circuit. When the board mounted DC power module or the AC/DC power supply device is plugged in a backboard module, the specification setting terminal outputs a specification identification signal to a monitoring circuit of the backboard module. As built in with a specification mapping table, the monitoring circuit can compare the specification identification signal to find a model number corresponding to the signal, and automatically sets a critical current value or critical power value of each board mounted DC power module for over-current protection or over-power protection. Accordingly, the universal power supply system can be adapted to different board mounted DC power modules or AC/DC power supply devices without redesigning the backboard module.

Abstract translation: 通用电源系统允许每个板安装的直流电源模块或其中具有相同尺寸和外观的每个AC / DC电源装置进一步具有规格设置电路。 当板载直流电源模块或AC / DC电源装置插入背板模块时，规格设定端子向背板模块的监控电路输出规格识别信号。 内置有规格映射表，监控电路可以比较规格识别信号，找出与信号对应的型号，并自动设置每个电路板安装的直流电源模块的临界电流值或临界功率值，以实现过流 保护或过功率保护。 因此，通用电源系统可以适用于不同的板载DC电源模块或AC / DC电源设备，而无需重新设计背板模块。

公开(公告)号：US11581730B2

公开(公告)日：2023-02-14

申请号：US17231139

申请日：2021-04-15

Applicant: ACBEL POLYTECH INC.

Inventor： Chia-An Yeh

IPC: H02J1/10 ,  H02J1/08

Abstract: The power supply device with multiple outputs includes two output ports, a power converting module with two power output ends, and two switching modules connected among the two power output ends and the two output ports. The output power from the two power output ends can be independently allocated to either one or two of the two second output ports. When one of the output ports requests for a demand power, the power supply device is able to determine which one or both of the power output ends to output power to the output port, reaching a better power allocation efficiency.

公开(公告)号：US20210399625A1

公开(公告)日：2021-12-23

申请号：US17018172

申请日：2020-09-11

Applicant: ACBEL POLYTECH INC.

Inventor： CHIA-CHIH HSIANG

IPC: H02M1/32 ,  H02J1/10 ,  H02M3/158

Abstract: A power supply device with improved current balancing mechanism includes a power supply module, and a current detecting module detecting the output current to generate a sample voltage. A compensation voltage is provided that is in superposition with the sample voltage to synthesizes a corrected sample voltage, and a current mirror unit receives the corrected sample voltage at a first end. A positive input end of a comparator unit is connected to a second end of the current mirror unit, and is connected to the first end through a voltage divider, while the comparator unit outputs the current share voltage under negative feedback control. The current share output is corrected by compensating the sampling voltage and reflecting it by a current mirror with a certain ratio, the inconvenience of manually adjusting variable resistor, or the problem of temperature influenced BJT and MOSFET, or phase delay of digital sampling is solved.