Magnetic bridge type current sensor, magnetic bridge type...

Details Magnetic bridge type current sensor, magnetic bridge type... Magnetic bridge type current sensor, magnetic bridge type...

2007-05-15

2007-05-15

Tang, Minh N. (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Meter protection or fraud combatting

C324S11700H, C324S127000

Reexamination Certificate

active

10518425

ABSTRACT:
A current sensor and a current detecting method in which a sensitivity in at least 100 μA region and a dynamic range of 80 dB are achieved through a simple structure. The current sensor comprises one middle leg magnetic circuit (1) having opposite ends, two outer leg magnetic circuit (2a,2b) being connected with one and the other ends of the middle leg magnetic circuit (1), respectively, an exciting means (3a) arranged in the outer leg magnetic circuit (2a) and exciting means (3b) arranged in the outer leg magnetic circuit (2b), a flux detecting, means (4) arranged in the middle leg magnetic circuit (1), means (7) for driving the exciting means (3a,3b), and a detection circuit (8) connected with the flux detecting means (4) and outputting an electric signal interlocked with the flux being detected by the flux detecting means (4).

REFERENCES:
patent: 4182982 (1980-01-01), Wolf et al.
patent: 5523677 (1996-06-01), Kawakami et al.
patent: 6490180 (2002-12-01), Hiltunen et al.
patent: 63-212883 (1987-05-01), None
patent: 10-010161 (1998-01-01), None
patent: 10-332745 (1998-12-01), None
patent: 2000-055940 (2000-02-01), None
patent: 2000-249727 (2000-09-01), None
JP2000-055940, JP10-332745, JP10-010161, JP2000-249727. A machine translation has been provided for the listed documents.
JP63-212883. An English abstract has been provided for the listed document.

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