公开(公告)号：US20210223842A1

公开(公告)日：2021-07-22

申请号：US17143176

申请日：2021-01-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Ming-Hsiang LO ,  Sung-Yueh CHEN

IPC: G06F1/28 ,  H05K7/14

Abstract: The present disclosure provides a power system that includes a set of power devices and addressing lines. The set of power devices are electrically connected to a main power source, a standby power source and a server node. The addressing lines are electrically connected to the set of power devices, so that the set of power devices can correspond to a plurality of different addressing signals respectively. The set of power devices are switched at different times based on the different addressing signals, so that one of the main power source or the standby power source supplies power to the server node though the set of power devices.

公开(公告)号：US20210288517A1

公开(公告)日：2021-09-16

申请号：US17331153

申请日：2021-05-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Ming-Hsiang LO ,  Chia-Hao CHANG

IPC: H02J9/06

Abstract: A redundant power transfer apparatus provides an uninterrupted power transfer for a rear-stage circuit. The redundant power transfer apparatus includes a main loop switch coupled to a main power source, a standby loop switch coupled to a standby power source, and a control unit. The control unit controls the redundant power transfer apparatus to make the main power source or the standby power source supply power to the rear-stage circuit.

公开(公告)号：US20250023383A1

公开(公告)日：2025-01-16

申请号：US18770668

申请日：2024-07-12

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hsieh-Hsiung CHENG ,  Te-Chih PENG ,  Ming-Hsiang LO ,  Kuo-Hsun CHIEN

IPC: H02J9/06 ,  G06F1/26 ,  H02J1/10

Abstract: A control method applied to a power supply system. The power supply system comprises at least one first power unit and a second power unit, and the at least one first power unit is configured to provide power to an electrical load according to a power provided by a power source. The control method comprises: detecting a load status of the power supply system; when the load status is determined to be a peak load, generating a trigger signal; and in response to the trigger signal, disabling a first-stage converter in the second power unit, and controlling an energy storage capacitor in the second power unit to provide power to the electrical load, wherein the energy storage capacitor is coupled between the first-stage converter and a second-stage converter in the second power unit.

公开(公告)号：US20200076228A1

公开(公告)日：2020-03-05

申请号：US16227323

申请日：2018-12-20

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Ming-Hsiang LO ,  Chia-Hao CHANG

IPC: H02J9/06

Abstract: A redundant power transfer apparatus provides an uninterrupted power transfer for a rear-stage circuit. The redundant power transfer apparatus includes a main loop switch coupled to a main power source, a standby loop switch coupled to a standby power source, and a control unit. The control unit controls the redundant power transfer apparatus to make the main power source or the standby power source supply power to the rear-stage circuit.

公开(公告)号：US20180097442A1

公开(公告)日：2018-04-05

申请号：US15599450

申请日：2017-05-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hsin-Chung NIU ,  Chih-Hong WU ,  Chia-Hao CHANG ,  Ming-Hsiang LO

IPC: H02M1/42 ,  G05F1/70 ,  G05F5/00

CPC classification number: H02M1/4266 ,  G05F1/70 ,  G05F5/00 ,  H02M1/32 ,  H02M1/36 ,  H02M1/4225 ,  H02M2001/0006 ,  H02M2001/0032 ,  H02M2001/0083 ,  Y02B70/126 ,  Y02P80/112

Abstract: A power supply device includes a PF correction circuit, a power switching circuit and a control circuit. The PF correction circuit converts an input voltage to a bus voltage according to a control signal to supply a later stage circuit. The power switching circuit selectively switches to conduct a first source or a second source to the PF correction circuit to provide the input voltage to the PF correction circuit. The control circuit outputs the control signal to the PF correction circuit. When the control circuit detects a first voltage of the first source connecting to the PF correction circuit is abnormal, the control circuit determines whether a second voltage of the second source is smaller than the bus voltage and controls the power switching circuit to switch when the second voltage is smaller than the bus voltage to conduct the second source to the PF correction circuit.

公开(公告)号：US20250030338A1

公开(公告)日：2025-01-23

申请号：US18474556

申请日：2023-09-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Chao-Fong CHANG ,  Ming-Hsiang LO

IPC: H02M3/00 ,  H02M3/335

Abstract: A three-phase resonant converter includes a three-phase transformer, an input bridge arm assembly, an output bridge arm assembly, and a control unit. The input bridge arm assembly has three input switch arms, and each input switch arm has an upper switch and a lower switch. The output bridge arm assembly has three output synchronous rectification switch arms respectively coupled to the three secondary-side windings. Each output synchronous rectification switch arm has an upper rectification switch and a lower rectification switch. The control of each output synchronous rectification switch arm is corresponding to the control of each input switch arm. The control unit controls the upper rectification switch or the lower rectification switch to be turned on with a leading phase angle to the corresponding upper switch or the lower switch so as to maintain an output voltage of the resonant converter to be higher than a voltage threshold.

公开(公告)号：US20210336474A1

公开(公告)日：2021-10-28

申请号：US16988233

申请日：2020-08-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Te-Chih PENG ,  Ming-Hsiang LO ,  Chih-Hong WU ,  Yu-Ren WENG

IPC: H02J9/06

Abstract: A power backup circuit provides a plurality of input power sources to back up a load. The power backup circuit includes a first switch, a second switch, and a control unit. The input power sources at least includes a first input power source and a second input power source. If the input power source of the load needs to be changed from the first input power source to the second input power source, the control unit controls the first switch to be coupled to the second input power source and controls the second switch to be coupled to the second input power source after the control unit effects a supply current flowing through a first power supply path and a second power supply path both coupled to the first input power source and the load to be reduced below a current threshold.

公开(公告)号：US20210320519A1

公开(公告)日：2021-10-14

申请号：US17147100

申请日：2021-01-12

Applicant: DELTA ELECTRONICS, INC.

Inventor： Shih-Chang CHUANG ,  Te-Chih PENG ,  Ming-Hsiang LO ,  Chih-Hong WU ,  Min-Cheng CHIANG

IPC: H02J9/06 ,  H01M10/44 ,  H02J7/00 ,  G05F1/56 ,  G06F1/30

Abstract: A power supply system includes a plurality of power supply units and a plurality of battery units. Each power supply unit is coupled to a common bus through a first switch. Each battery unit is corresponding to each power supply unit, and is coupled to the common bus through a second switch. Any one of the power supply units turns on the corresponding first switch and turns on the second switches of other battery units so that the power supply unit acquires power electricity from other battery units through the common bus.