公开(公告)号：US10554119B1

公开(公告)日：2020-02-04

申请号：US16239328

申请日：2019-01-03

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao-Li Kao ,  Hung-Chieh Lin ,  Yi-Ping Hsieh ,  Jin-Zhong Huang ,  Chao-Lung Kuo ,  Po-Hsin Tseng ,  Hong-Wen Chen

IPC: H02M1/32 ,  H02M7/487 ,  H02M7/5387 ,  H02M1/08

Abstract: An inverter apparatus with overcurrent protection control includes a first terminal of a DC input terminal connected to an AC output terminal through a first switch element and a second switch element, and a second terminal of the DC input terminal connected to the AC output terminal through a fourth switch element and a third switch element. An intermediate potential terminal is connected to a fifth switch element and a sixth switch element, and connected to the AC output terminal through the fifth switch element and the second switch element, and connected to the AC output terminal through the sixth switch element and the third switch element. When the control unit determines that the inverter apparatus is in an overcurrent state, the control unit controls a sequence of turning off the inverter apparatus to be the second switch element, the first switch element, and the sixth switch element.

公开(公告)号：US10734835B2

公开(公告)日：2020-08-04

申请号：US16052914

申请日：2018-08-02

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chao-Li Kao ,  Hung-Chieh Lin ,  Chao-Lung Kuo ,  Yi-Ping Hsieh ,  Jin-Zhong Huang ,  Po-Hsin Tseng

IPC: H02J7/04 ,  H02J7/00 ,  H02J9/06 ,  H02M7/04

Abstract: A power bypass apparatus with a current-sharing function includes at least two bypass switch assemblies and a control unit. Each bypass switch assembly includes a controllable switch, a cooling unit, and a temperature detection unit. Each the temperature detection unit, correspondingly disposed to a heat-dissipating unit, detects a temperature value of the controllable switch to produce a temperature detection signal. The control unit receives the temperature detection signals and outputs at least two switch control signals to control at least one of the controllable switches or outputs at least two cooling unit control signals to control at least one of the cooling units, thus making currents flowing through the controllable switches identical. Accordingly, it is to increase overall efficiency of a power system and implement current-sharing function of the power system providing high power.

公开(公告)号：US11205956B2

公开(公告)日：2021-12-21

申请号：US16267881

申请日：2019-02-05

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hung-Chieh Lin ,  Chao-Li Kao ,  Yi-Ping Hsieh ,  Jin-Zhong Huang ,  Po-Hsin Tseng ,  Chih-Hsien Li ,  Hung-Yu Huang

IPC: H02M3/155 ,  H02M7/537

Abstract: A power converter with a common DC power source includes a DC power source and at least two power modules. Each of the power modules is coupled with each other and coupled to the DC power source. Each of the power module includes a coupled inductive component coupled to the DC power source, a DC output conversion unit coupled to the coupled inductive component, and a capacitor group having a coupling point. By using the coupled inductive component, it is to solve the problem of return current between the power modules caused by coupling multiple coupling points to each other.

公开(公告)号：US09960699B2

公开(公告)日：2018-05-01

申请号：US15682568

申请日：2017-08-22

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yi-Ping Hsieh ,  Hung-Chieh Lin ,  Chao-Lung Kuo ,  Jin-Zhong Huang ,  Po-Hsin Tseng

IPC: H02M5/458

CPC classification number: H02M5/4585 ,  H02M1/32 ,  H02M7/23 ,  H02M7/493 ,  H02M2001/0009

Abstract: A power converting device includes a first and a second power module electrically coupled in parallel, a loop current limiting circuit and a driving circuit. A first and a second terminal of the loop current limiting circuit are coupled to the first and the second power module respectively. A third and a fourth terminal of the loop current limiting circuit are coupled to each other. The loop current limiting circuit includes a coupled differential-mode inductor, a first inductive unit and a second inductive unit. A first winding and a second winding of the coupled differential-mode inductor are coupled to the first and the second power modules respectively. The first and the second inductive units are coupled to the first and the second power modules respectively. The driving circuit is configured to output a driving signal to the first and the second power module according to a current detecting signal.