Title:
Magnetic field sensor
Document Type and Number:
Japanese Patent JP6346045
Kind Code:
B2
Abstract:
According to an embodiment of the present invention, a magnetic field sensor is provided with: a magnetic field sense circuit (11) that is provided with a ferromagnetic element (15) wherein a resistance value changes due to a magnetic field and an electric field, and an electrode (31) to which a control voltage (Vcontrol) for generating the electric field is applied; a resistance detection circuit (12) that detects the resistance value of the ferromagnetic element (15); and a control voltage generation circuit (10) that generates the control voltage. The control voltage generation circuit (10) generates the control voltage (Vcontrol) that makes the resistance value of the ferromagnetic element (15) at a predetermined value when the magnetic field is zero.
Inventors:
Tomoaki Iguchi
Ishikawa Mizue
Hideyuki Sugiyama
Yoshiaki Saito
Satoshi Tanamoto
Tsuyoshi Kondo
Ishikawa Mizue
Hideyuki Sugiyama
Yoshiaki Saito
Satoshi Tanamoto
Tsuyoshi Kondo
Application Number:
JP2014188734A
Publication Date:
June 20, 2018
Filing Date:
September 17, 2014
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G01R33/02; G01R33/09; H01L43/08
Domestic Patent References:
| JP2006049901A | ||||
| JP2002189067A | ||||
| JP2007240202A | ||||
| JP2002198583A |
Foreign References:
| US20130015542 | ||||
| WO2010140396A1 |
Attorney, Agent or Firm:
Suzue International Patent Office
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