Hall device biasing circuit and magnetism detection circuit including the same
AssigneeSharp Kabushiki Kaisha
InventorsHiroki Doi, Masanori Inamori
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Abstract
A Hall device biasing circuit includes a plurality of terminals for applying a bias voltage to a plurality of Hall devices connected in series, respectively. A magnetism detection circuit includes a plurality of Hall devices connected in series; and a Hall device biasing circuit including at least a plurality of terminals corresponding to the plurality of Hall devices for supplying a constant bias voltage to each of the plurality of Hall devices respectively from the plurality of terminals.
Claims20
A Hall device biasing circuit, comprising a plurality of terminals for applying a bias voltage to a plurality of Hall devices connected in series, respectively, so that a driving current driving at least one Hall device of the plurality of Hall devices is a current adjusted amount of a driving current driving another Hall device through a corresponding terminal of the plurality of terminals, and so that the bias voltage applied to each of the plurality of Hall devices is substantially constant.
A magnetism detection circuit, comprising:
- a plurality of Hall devices connected in series;
- and
- a Hall device biasing circuit including at least a plurality of terminals corresponding to the plurality of Hall devices for supplying a constant bias voltage to each of the plurality of Hall devices respectively from the plurality of terminals so that a driving current driving at least one Hall device of the plurality of Hall devices is a current adjusted amount of a driving current driving another Hall device through a corresponding terminal of the plurality of terminals, and so that the bias voltage applied to each of the plurality of Hall devices is substantially constant.
Dependencies are inferred from the claim text.