VARIABLE VOLTAGE CIRCUIT

摘要

In a variable voltage circuit 50, a resistive element 104 and a magnetoresistance effect element 108 are connected in series between a first voltage source 101 and a second voltage source 102. A magnetic field supply mechanism 121 that applies a magnetic field to the magnetoresistance effect element 108 is provided in the vicinity of the magnetoresistance effect element 108. The magnetic field supply mechanism 121 can vary the resistance value of the magnetoresistance effect element 108 by varying the magnetic field. A node 106 between the resistive element 104 and the magnetoresistance effect element 108 is connected to an output terminal 103.

主权项

1. A variable voltage circuit, wherein a plurality of resistive elements are connected in series between a first voltage source and a second voltage source, at least one of the plurality of resistive elements is a magnetoresistance effect element that has a magnetization fixed layer and a magnetization free layer with a spacer layer interposed therebetween, a magnetic field supply mechanism that applies a magnetic field to the magnetoresistance effect element is provided in a vicinity of the magnetoresistance effect element, the magnetic field supply mechanism is operable to vary a resistance value of the magnetoresistance effect element by varying the magnetic field, and one of nodes among the plurality of resistive elements is connected to an output terminal.