Magnetic Stripe Write Driver with Write Echo
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20
This article describes a magnetic write transducer drive circuit for writing data in a stripe of magnetic material by alternatively switching current in both directions through the transducer winding. The circuit further senses current in the transducer winding to inhibit certain operations that may destroy previously recorded data, and to provide diagnostic information.