| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrator in which a reverse electromotive force generated when a primary current is shielded is utilized, a restitution force restituted against a butted permanent magnet is made as an vibromotive force, an electric power is further rectified and is charged to a secondary battery and a use of the secondary battery for a long period of time is maintained and which is assembled to a cellular phone, PHS or the like and is used as a vibrator for slave-calling. SOLUTION: In the vibrator, after a primary current is energized to a primary coil in a switching circuit in which the primary coil is wound on a laminated iron core and an input signal current applies a positive magnetic characteristic of a compound semiconductor magnetic resistance element, when it is shielded to generate a reverse electromotive force, since it becomes the same polarity as a magnetic pole of the permanent magnet, a large restitution is generated and the restitution force is made as an electromotive force. A rectification circuit for taking out the electric power from a secondary coil and charging it to the secondary battery is assembled to maintain a use of the secondary battery for a long period of time. A miniaturization and a light weight become possible and it is assembled to the cellular phone. PHS or the like to make it as a vibrator for slave-calling. |
