Invention Grant
- Patent Title: Sampling circuit for a current transformer
- Patent Title (中): 电流互感器采样电路
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Application No.: US14109217Application Date: 2013-12-17
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Publication No.: US09229034B2Publication Date: 2016-01-05
- Inventor: Hua-Sheng Lin , Yung-Sheng Yeh
- Applicant: Delta Electronics, Inc.
- Applicant Address: TW Taoyuan Hsien
- Assignee: DELTA ELECTRONICS, INC.
- Current Assignee: DELTA ELECTRONICS, INC.
- Current Assignee Address: TW Taoyuan Hsien
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: TW102130163A 20130823
- Main IPC: G01R19/22
- IPC: G01R19/22 ; G01R19/00 ; H02M1/00

Abstract:
A sampling circuit for current transformer includes a current sensing unit, a rectification unit, a sampling unit and a switching unit. The rectification unit is electrically connected to the current sensing unit. The sampling unit is electrically connected to the rectification unit and outputs a first signal. The sampling unit includes an energy leakage device and a switching device. The switching device is electrically connected to the energy leakage device in parallel, and is turned on or off according to a second signal and a third signal. The switching unit is electrically connected to the sampling unit, and is turned on or off according to the second signal.
Public/Granted literature
- US20150054549A1 SAMPLING CIRCUIT FOR CURRETN TRANSFORMER Public/Granted day:2015-02-26
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