公开(公告)号：US10992152B2

公开(公告)日：2021-04-27

申请号：US16238139

申请日：2019-01-02

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chung-Chieh Cheng ,  Yung-Sheng Yan ,  Chao-Chin Huang

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H02J9/06 ,  H02M3/04

Abstract: An uninterruptible power supply includes a switching unit, a charging unit, an energy storage unit, a conversion unit, and a control unit. When an input power source is available, the switching unit provides a first output power source and the charging unit converts the input power source into a first power source to provide the first power source to the control unit and to charge the energy storage unit. When the input power source is not available, the conversion unit converts the electricity of the energy storage unit into a second output power source and provides the second output power source. When the input power source is not available, the conversion unit provides a second power source to the charging unit so that the charging unit converts the second power source into the first power source and provides the first power source to the control unit.

公开(公告)号：US10511235B1

公开(公告)日：2019-12-17

申请号：US16222063

申请日：2018-12-17

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chiao-Chien Lin ,  Yung-Sheng Yan

IPC: H02M7/5387 ,  H02M7/537 ,  H02M7/48

Abstract: An inverter apparatus includes a first switch, a second switch, a third switch, a fourth switch, a load detection unit, and a control unit. The first switch and the fourth switch form a first switch assembly, and the second switch and the third switch form a second switch assembly. The control unit selects a control mode to be that two switches of the first switch assembly are not turned off and at least one switch of the second switch assembly is turned off, or two switches of the second switch assembly are not turned off and at least one switch of the first switch assembly is turned off, or two switches of the first switch assembly and two switches of the second switch assembly are not turned off.