The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 1991
Filed:
Oct. 01, 1990
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307270 ; 307282 ; 361152 ; 365-7 ;
Abstract
This invention accomplishes low power consumption by a drive circuit for a Bloch line memory, which includes a power source, a bias magnetic field coil, a plurality of switching means and means for returning the power supplied to the bias magnetic field to the power source. The present invention can set the waveform of a pulse current (coil current) to a desired waveform by particularly using a transformer, and can improve the transfer characteristics of the Both line pair.