| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a current sensor which can solve problems specific to conventional current sensor configured as an insulator like printed circuit board with U-shape primary conductor directly-installed; it requires primary conductor installation plane while having merit of being impressed with reverse directional magnetic field to each half bridge circuit on both ends of bridge circuit to remove even external field; miniaturization of sensor board is limited for ensuring insulation; and measuring range cannot be easily be changed when using same magnetoresistive effect element (same bridge circuit) without changing position or shape of the primary conductor. <P>SOLUTION: As this current sensor is structured as an integrated combination of the primary conductor and its case, withstand voltage of the magnetoresistive effect element or circuit section and the primary conductor can easily be ensured, sensor board can be miniaturized, and also measuring range can easily be changed at a lower cost. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
