-
1.发明授权公开(公告)号：US11588389B2
公开(公告)日：2023-02-21
申请号：US17370555
申请日：2021-07-08
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Chang Lee
Abstract: A power supply system with line loss reduction supplies power to a load through a power line. The power supply system includes a step-up converter, a detection circuit, and a control unit. The control unit sets a terminal voltage required by the load, controls an output voltage of the step-up converter to be terminal voltage, and acquires an output current corresponding to the terminal voltage to be a present current by the detection circuit. The control unit controls the output voltage to be a modulated voltage, and acquires an output current corresponding to the modulated voltage to be a modulated current by the detection circuit. The control unit adjusts the output voltage to be a first predetermined voltage according to the terminal voltage, the present current, the modulated voltage, and the modulated current.
-
公开(公告)号：US10236780B2
公开(公告)日：2019-03-19
申请号：US15716495
申请日：2017-09-26
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Chang Lee
Abstract: A converter includes a switching circuit, a resonant circuit, a rectifying circuit, and a transformer including a primary winding, and a secondary winding. The switching circuit is configured to convert a DC input voltage to a switching signal. The resonant circuit is electrically coupled to the switching circuit and configured to receive the switching signal to provide a primary current. The primary winding is coupled to the resonant circuit. The rectifying circuit is coupled to the secondary winding and configured to rectify a secondary current outputted by the secondary winding so as to provide an output voltage. The resonant circuit includes a variable inductor to adjust the characteristic curve of the converter.
-
公开(公告)号：US10069298B2
公开(公告)日：2018-09-04
申请号：US15270003
申请日：2016-09-20
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Chang Lee , Yi-Hua Chang , Chun-Ta Lin , Chien-Hung Liu
Abstract: An inverter and a control method are disclosed herein. The inverter includes a first switching circuit, a second switching circuit, and a DC-AC converting circuit. The first switching circuit is configured to selectively switch between connecting a first input terminal receiving an AC source and an output terminal of the inverter, and connecting a second input terminal receiving a DC source and the output terminal of the inverter. The second switching circuit is configured such that the first input terminal and the output terminal are connected during the switching process of the first switching circuit. The DC-AC converting circuit is electrically coupled between the second input terminal and the first switching circuit and configured to be operated in a current control mode to convert the DC source to AC power when the first switching circuit is switched to connect the second input terminal and the output terminal.
-
公开(公告)号：US11601898B2
公开(公告)日：2023-03-07
申请号：US17353104
申请日：2021-06-21
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Chang Lee
Abstract: An integrated communication power system supplies power to a communication equipment, and the communication equipment includes a base station module and an antenna processing module. The integrated communication power system includes a first transfer switch, a first integrated conversion module, a DC conversion module, and an energy storage module. The first transfer switch selectively switches one of input sources and a renewable energy to be coupled to the first integrated conversion module to receive an input voltage. The first integrated conversion module converts the input voltage into a DC voltage, and the DC conversion module provides an output voltage to supply power to the antenna processing module according to the DC voltage. The energy storage module receives an energy storage voltage provided by the first integrated conversion module or the DC conversion module to supply power to the base station module.
-
-
-
Search Results
4
records
(took 0.014 seconds)
