-
公开(公告)号：US20230360848A1
公开(公告)日：2023-11-09
申请号：US18110748
申请日：2023-02-16
Applicant: Delta Electronics, Inc.
Inventor： Chun-Wei Wu , Chia-Hao Yeh , Hung-Chuan Lin
CPC classification number: H01F27/33 , H01F27/24 , H01F27/06 , H01F27/306 , H03H7/0115 , H01F2027/065
Abstract: An EMI filter system includes a circuit board and a choke. The circuit board includes at least three capacitors. The choke mounts on the circuit board and includes a non-circular magnetic core and at least three windings. The at least three windings are wound on the non-circular magnetic core. The at least three capacitors are disposed adjacent to the choke, and first outlet ends of the at least three windings are respectively connected to the corresponding at least three capacitors.
-
公开(公告)号：US20220140593A1
公开(公告)日：2022-05-05
申请号：US17445405
申请日：2021-08-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Wei Wu , Chia-Ming Chang , Xin-Hung Lin
Abstract: A signal sampling circuit for arc detection includes plural current sensors, plural high pass filter circuits, and an adder circuit. Each of the current sensors is configured to sense a measured current and then generate a sensed voltage signal. One of the high pass filter circuits receives the sensed voltage signal from one of the current sensors and performs high-pass filtering on the sensed voltage signal. The adder circuit performs scaling up, adding, and DC offset on the high-pass filtered sensed voltage signals. Each of the high pass filter circuits is composed of a filter capacitor and a first resistor connected in series with the filter capacitor. The adder circuit is composed of the first resistors, a first operational amplifier, and a second resistor.
-
公开(公告)号：US10197604B2
公开(公告)日：2019-02-05
申请号：US15654021
申请日：2017-07-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Wei Wu , Xin-Hung Lin
IPC: G01R19/165 , G01R19/00 , G01R19/18 , H02H7/09 , H02P27/06
Abstract: A current detecting apparatus measures an input current or an output current of an electronic apparatus. The current detecting apparatus includes a current detecting module, a direct-current measurement module and a current detecting module. The current detecting module includes a coil configured to electromagnetically couple to a path of an input or a path of an output of the electronic apparatus to obtain a first voltage signal. The direct-current measurement module measures the path of the input or the path of the output to obtain a second voltage signal. The current detecting module converts the first voltage signal into a first current command, and converts the second voltage signal into a second current command. The first current command is an alternating-current component of the input current or the output current. The second current command is a direct-current component of the input current or the output current.
-
公开(公告)号：US11569649B2
公开(公告)日：2023-01-31
申请号：US17445405
申请日：2021-08-19
Applicant: DELTA ELECTRONICS, INC.
Inventor： Chun-Wei Wu , Chia-Ming Chang , Xin-Hung Lin
Abstract: A signal sampling circuit for arc detection includes plural current sensors, plural high pass filter circuits, and an adder circuit. Each of the current sensors is configured to sense a measured current and then generate a sensed voltage signal. One of the high pass filter circuits receives the sensed voltage signal from one of the current sensors and performs high-pass filtering on the sensed voltage signal. The adder circuit performs scaling up, adding, and DC offset on the high-pass filtered sensed voltage signals. Each of the high pass filter circuits is composed of a filter capacitor and a first resistor connected in series with the filter capacitor. The adder circuit is composed of the first resistors, a first operational amplifier, and a second resistor.
-
-
-
Search Results
4
records
(took 0.011 seconds)
