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Date of Publication:2022-10-10

Journal:压电与声光

Volume:23

Issue:1

Page Number:33-36

ISSN No.:1004-2474

Abstract:In this paper，the driving characteristic of giantmagnetostrictive materials and the characteristic of driving power of giangt magnetostrictive actuator are analyzed．Then，based on the principle of constant current source which is adjusted continuously and using power MOSFET as power amplifier，a high precision driving power of giant magnetostrictive actuator is studied and manufactured whose output current can be adjusted continuously from －3～＋3 A．The experiment results show that the property of driving power is excellent and the driving power can meet the needs of driving of giant magnetostriction materials．

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