| 摘要 |
PURPOSE:To reduce the power consumption of a detector by connecting a group of couples of control current terminals in a Hall element group mutually in series and supplying a control current, and deriving a group of output signals from a group of differential amplifying means connected to respective couples of Hall output terminals. CONSTITUTION:In magnetic fields in different spaces, Hall element groups 301- 303 are provided, and couples of control current terminals of those Hall element groups 301-303 are connected mutually in series to supply a control current Ic to the Hall element groups 301-303 in series. Then, couples of Hall output terminals of the Hall element groups 301-303 are connected to differential amplifying means groups 311-313 having couples of differential input terminals, and a group of output signals corresponding to the magnetic fields in said different spaces are led out of respective amplification output terminal groups of the differential amplifying means groups 311-312. |
