公开(公告)号：US20150069997A1

公开(公告)日：2015-03-12

申请号：US14540978

申请日：2014-11-13

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Ken KAWAHATA ,  Nobuyoshi YAMASAKI ,  Masatoshi NOMURA

IPC: G01R19/32 ,  G01R19/25 ,  G01R3/00 ,  G01R1/30 ,  G01R33/09 ,  H03F1/30 ,  G01R35/00

CPC classification number: G01R19/32 ,  G01R1/30 ,  G01R3/00 ,  G01R15/207 ,  G01R19/25 ,  G01R33/09 ,  G01R35/00 ,  H03F1/30 ,  H03F3/45475 ,  H03F3/45968 ,  H03F2200/228 ,  H03F2200/261 ,  H03F2200/411 ,  H03F2203/45528 ,  Y10T29/4902

Abstract: A manufacturing method is used for a current sensor including a current measurement circuit configured to include magnetoelectric conversion elements, a first amplification-and-correction circuit configured to amplify an output of the current measurement circuit and correct, based on a set first correction amount, a temperature characteristic of an offset, a second amplification-and-correction circuit configured to amplify an output of the first amplification-and-correction circuit, adjust a sensitivity, and correct, based on a set second correction amount, a magnitude of the offset, and a substrate in which the current measurement circuit, the first amplification-and-correction circuit, and the second amplification-and-correction circuit are provided, wherein after the first correction amount is set based on characteristics of the magnetoelectric conversion elements, the magnetoelectric conversion elements are mounted in the substrate and the second correction amount is set.

Abstract translation: 一种电流传感器的制造方法，包括电流测量电路，其被配置为包括磁电转换元件，第一放大校正电路，被配置为放大电流测量电路的输出，并且基于设定的第一校正量来校正， 偏移的温度特性，第二放大校正电路，被配置为放大第一放大校正电路的输出，调整灵敏度，并根据设定的第二校正量校正偏移量的大小 以及设置有电流测量电路，第一放大校正电路和第二放大校正电路的基板，其中，在基于磁电转换元件的特性设定第一校正量之后， 磁电转换元件安装在基板中，并且设定第二校正量。