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：US10951207B1

公开(公告)日：2021-03-16

申请号：US17018190

申请日：2020-09-11

Applicant: ACBEL POLYTECH INC.

Inventor： Jui-Yang Chiu ,  Chia-An Yeh

IPC: H03K17/16 ,  H03K17/691 ,  H02M1/42 ,  H03K3/356 ,  H03K7/08 ,  H02M1/38

Abstract: An integrated driving module includes an oscillator, a PWM unit, a soft start controller, a first driver, and a second driver. The oscillator is connected to a voltage input end and generates an oscillating signal. The PWM unit receives the oscillating signal and generates a first driving control signal and a second driving control signal that are respectively anti-phased. The first driver outputs a first driving output signal to a first output end according to the first driving control signal. The second driver outputs the second driving output signal to a second output end according to the second driving control signal. The integrated driving module only has four connection ends for external connection to provide the two anti-phase driving output signals, such that the circuit design and connection of the primary side of the transformer is greatly simplified. The design limitation and manufacturing cost can be both lowered.

公开(公告)号：US10340808B2

公开(公告)日：2019-07-02

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: H02M3/33 ,  H02M3/335 ,  H02M7/493 ,  H02J9/06

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.