Title:
スイッチモード増幅器を有するクローズドループ電流変換器
Document Type and Number:
Japanese Patent JP5883008
Kind Code:
B2
Abstract:
A closed-loop current transducer for measuring a current (Ip) flowing in a primary conductor (5), the transducer powered by series connected voltage supplies (V_H, V_L) and comprising a magnetic field detector (3), a signal processing circuit including an amplifier circuit (1, 2) connected to the magnetic field detector, and a compensation winding (WS1) connected to the amplifier circuit and configured to generate an opposing magnetic field seeking to cancel a magnetic field generated by the current flowing in the primary conductor. The amplifier circuit comprises a first switched mode power stage (1) configured to drive the magnetic field generator, and a second switched mode power stage (2) configured to balance the currents of the voltage supplies.
Inventors:
Schelle, Marc
Application Number:
JP2013528827A
Publication Date:
March 09, 2016
Filing Date:
September 20, 2011
Export Citation:
Assignee:
Rem Antelec Properties
International Classes:
G01R19/00; G01R15/18; G01R15/20
Foreign References:
| WO1998036281A1 | ||||
| US6713999 | ||||
| US20040204875 |
Attorney, Agent or Firm:
Koji Kitamura
Toshio Takao
Naoko Shimada
Toshio Takao
Naoko Shimada