公开(公告)号：US20230232555A1

公开(公告)日：2023-07-20

申请号：US18094264

申请日：2023-01-06

Applicant: Delta Electronics, Inc.

Inventor： Ching-Tang Chang ,  Chi-Shou Ho ,  Chen-Chiang Su ,  Guan-Chen Yin

IPC: H05K5/02

CPC classification number: H05K5/0217

Abstract: A device having fool-proofing structure is configured to be inserted into a cabinet along a first direction and includes a case and an elastic sheet module. The elastic sheet module is disposed on a side of the case and includes a first end disposed on the case, a second end opposite to the first end, a first protrusion portion and a second protrusion portion. The first protrusion portion is adjacent to the second end, protrudes from the case and is configured to abut against the cabinet. The second protrusion portion is farther from the second end than the first protrusion portion, protrudes from the case, and is configured to make the second end and the first protrusion portion move toward the interior of the case as being pressed by a force.

公开(公告)号：US20230232526A1

公开(公告)日：2023-07-20

申请号：US17720069

申请日：2022-04-13

Applicant: Delta Electronics, Inc.

Inventor： Jui-Ching Lee ,  Po-Heng Chao ,  Do Chen ,  Ching-Ho Chou

IPC: H05K1/02 ,  H05K7/12 ,  H05K7/14

CPC classification number: H05K1/0215 ,  H05K7/12 ,  H05K7/1417

Abstract: An electronic device is provided and includes a circuit board and a casing. The circuit board includes a plate body, a perforation and a ground wire. The perforation penetrates through the plate body, the ground wire is electrically coupled with the plate body and crosses over the perforation. The casing includes a bottom plate and a clamping structure. The clamping structure is disposed on the bottom plate and includes a first clamping part and a second clamping part. The circuit board is disposed in the casing, and the clamping structure penetrates through the plate body through the perforation, so that the circuit board is positioned on the casing, and the ground wire is clamped by the first clamping part and the second clamping part of the clamping structure. Consequently, the circuit board is grounded with the casing.

公开(公告)号：US11703692B2

公开(公告)日：2023-07-18

申请号：US17453857

申请日：2021-11-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chun-Hsien Lu

IPC: G02B27/28 ,  G03B21/62 ,  G03B21/20

CPC classification number: G02B27/286 ,  G03B21/2033 ,  G03B21/62

Abstract: A laser light source depolarizer includes a laser light source, a light angle adjusting element, a birefringent crystal, and an integration rod. The laser light source is configured to emit a laser light. The light angle adjusting element is configured to change the diffusion angle of the laser light. The light angle adjusting element is disposed between the laser light source and the birefringent crystal. The birefringent crystal is disposed between the light angle adjusting element and the integration rod, and the birefringent crystal is configured to break the polarity of the laser light.

公开(公告)号：US20230223866A1

公开(公告)日：2023-07-13

申请号：US17961800

申请日：2022-10-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Kai-Wei HU ,  Ping-Heng WU ,  Lei-Chung HSING

IPC: H02M7/487 ,  H02M7/5387

CPC classification number: H02M7/487 ,  H02M7/53871

Abstract: A method of clamping an output current of a three-phase power converter is provided. The three-phase power converter includes three switching bridge arms and provides a three-phase output voltage command, and each switching bridge arm has an upper switch and a lower switch connected in series. The method includes steps of: determining that the output current is greater than a first current threshold to activate a current clamping control procedure, comparing a carrier signal with the three-phase output voltage command to turn on the lower switches by a first zero vector when the carrier signal is rising and turn on the upper switches by a second zero vector when the carrier signal is falling, determining that the output current is greater than a second current threshold to activate an overcurrent protection procedure, wherein the second current threshold is greater than the first current threshold.

公开(公告)号：US11699888B2

公开(公告)日：2023-07-11

申请号：US17551433

申请日：2021-12-15

Applicant: Delta Electronics, Inc.

Inventor： Li-Yen Chang ,  Chin-Chu Huang ,  Ying-Shu Tseng

IPC: H01R31/06 ,  H01R12/71 ,  H05K5/00 ,  H01R12/70 ,  H01R13/24

CPC classification number: H01R31/06 ,  H01R12/7088 ,  H01R12/714 ,  H05K5/0069 ,  H01R13/24

Abstract: A power adapter assembly structure is disclosed and includes a housing, a circuit board, a socket and an elastic element. The circuit board including a first abutting surface and the socket including a second abutting surface are fastened in the housing. The elastic element connected between the circuit board and the socket includes a main body, a first hanging arm and a second hanging arm. The first hanging arm and the second hanging arm are disposed at two opposite ends of the main body, and constantly abuts the first abutting surface and the second abutting surface, respectively. A first gap is formed between the main body and the first abutting surface, and less than a first length of the first hanging arm. A second gap is formed between the main body and the second abutting surface, and less than a second length of the second hanging arm.

公开(公告)号：US20230179088A1

公开(公告)日：2023-06-08

申请号：US17582153

申请日：2022-01-24

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yu-Jen LIN ,  Terng-Wei TSAI ,  Chia-Hsiong HUANG ,  Cheng-Chung LI ,  Chien-Hsi WANG

IPC: H02M1/42 ,  H02J7/00 ,  H02M3/156 ,  H02J3/01

CPC classification number: H02M1/4216 ,  H02J7/00308 ,  H02M3/156 ,  H02J3/01 ,  H02J2207/20

Abstract: A power conversion system with ripple injection includes an AC-DC conversion unit, a voltage regulation unit, at least one DC-DC conversion unit, at least one load, and a first control unit. The voltage regulation unit provides a DC link and receives one portion of an input power as an energy storage power. Each DC-DC conversion unit receives the other portion of the input power as an output power. The at least one load correspondingly receives the output power for being supplied power. The first control unit is coupled to the DC link, the at least one DC-DC conversion unit, and the at least one load. The first control unit controls the at least one DC-DC conversion unit to adjust a magnitude of a ripple of the output power to perform a ripple injection operation according to a magnitude of a ripple of the input power.

公开(公告)号：USD988498S1

公开(公告)日：2023-06-06

申请号：US29766975

申请日：2021-01-20

Applicant: DELTA ELECTRONICS, INC.

Designer： Pei-Han Chiu ,  Chien-Ming Lee ,  Hao Tien

Abstract: FIG. 1 is a perspective view of a first embodiment of a fan blade;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is another perspective view thereof;
FIG. 9 is a perspective view of a second embodiment of a fan blade;
FIG. 10 is a front elevational view thereof;
FIG. 11 is a rear elevational view thereof;
FIG. 12 is a left side elevational view thereof;
FIG. 13 is a right side elevational view thereof;
FIG. 14 is a top plan view thereof;
FIG. 15 is a bottom plan view thereof;
FIG. 16 is another perspective view thereof;
FIG. 17 is a perspective view of a third embodiment of a fan blade;
FIG. 18 is a front elevational view thereof;
FIG. 19 is a rear elevational view thereof;
FIG. 20 is a left side elevational view thereof;
FIG. 21 is a right side elevational view thereof;
FIG. 22 is a top plan view thereof;
FIG. 23 is a bottom plan view thereof;
FIG. 24 is another perspective view thereof;
FIG. 25 is a perspective view of a forth embodiment of a fan blade;
FIG. 26 is a front elevational view thereof;
FIG. 27 is a rear elevational view thereof;
FIG. 28 is a left side elevational view thereof;
FIG. 29 is a right side elevational view thereof;
FIG. 30 is a top plan view thereof;
FIG. 31 is a bottom plan view thereof; and,
FIG. 32 is another perspective view thereof.
The broken lines in the drawings illustrate portions of the fan blade which form no part of the claimed design. Shading is used to illustrate the curvature of the part and not color. The claimed design is indicated by the relatively dark portions in the drawings, while the relatively light portions are environmental and form no part of the claimed design.

公开(公告)号：US11658589B2

公开(公告)日：2023-05-23

申请号：US17474898

申请日：2021-09-14

Applicant: Delta Electronics, Inc.

Inventor： Yu-Wei Lee ,  Shang-Wen Hsu ,  Wei-Shuo Tseng

IPC: H02P6/17 ,  H02P6/28 ,  H02H7/08 ,  G01R19/165 ,  H02P29/024 ,  H02H7/09 ,  H02P6/12 ,  H02H7/093

CPC classification number: H02P6/17 ,  G01R19/16528 ,  H02H7/0833 ,  H02H7/09 ,  H02P6/28 ,  H02P29/027 ,  H02H7/093 ,  H02P6/12

Abstract: An electronically commutated motor driving module for driving a motor includes a voltage detector, an electronically commutated motor driver, a current detector, a voltage converter, and a controller. The voltage detector detects supply voltage to generate a voltage detection signal. The electronically commutated motor driver is supplied by the supply voltage to generate, according to an electronically commutated signal, an operating current for driving the motor. The current detector detects the operating current to generate a current detection signal. The voltage converter converts the supply voltage into an internal voltage. The controller is supplied by the internal voltage and generates the electronically commutated signal according to a plurality of control parameters. When the controller determines that a specific event has happened according to the control parameters, the controller stops generating the electronically commutated signal and then stores the control parameters.

公开(公告)号：US20230155517A1

公开(公告)日：2023-05-18

申请号：US18099238

申请日：2023-01-19

Applicant: Delta Electronics, Inc.

Inventor： Misha Kumar ,  Yungtaek Jang

IPC: H02M3/335 ,  H02M1/32 ,  H02M1/40

CPC classification number: H02M3/33592 ,  H02M1/32 ,  H02M3/33584 ,  H02M1/40 ,  H02M3/3353 ,  H02M1/0003

Abstract: A power converter and a control method thereof are provided. The power converter includes a primary side switching circuit, a secondary side switching circuit, a transformer, and a control circuit. The primary side switching circuit includes a first set of switches. The secondary side switching circuit includes a second set of switches. The transformer is coupled between the primary side switching circuit and the secondary side switching circuit. The control circuit is configured to control power transfer between the primary side switching circuit and the secondary side switching circuit by controlling the first and second sets of switches. The control circuit is adapted to enable and disable the first and second sets of switches in an enabling duration and a disabling duration respectively and alternatively.

公开(公告)号：US11652396B2

公开(公告)日：2023-05-16

申请号：US17363119

申请日：2021-06-30

Applicant: Delta Electronics, Inc.

Inventor： Chi Zhang ,  Zhiyu Shen ,  Ruxi Wang ,  Peter Mantovanelli Barbosa

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

CPC classification number: H02M3/33573 ,  H02M1/0058 ,  H02M3/01 ,  H02M3/33592

Abstract: The present disclosure provides a series resonant converter and its corresponding control method. In one aspect, the series resonant converter includes m (m=1, 2, 3, . . . ) sets of primary side stages in parallel, wherein each primary side stage is identical and includes n (n=2, 3, . . . ) stacked element circuits, where the primary side stages receive an input voltage; n×m resonant networks coupled to the primary side stages; n×m transformers having n×m primary side windings and n×m secondary side windings, where the primary side windings are coupled to the n×m resonant networks; p (p=1, 2, 3, . . . ) sets of secondary side stages in parallel, wherein each secondary side stage is identical and includes q (q=n×m/p) stacked element circuits, where the secondary side stages are coupled to n×m secondary side windings; and a control block controlling the primary side switches according to the output voltage, input voltage and input capacitor voltages.