Oscillating erase current circuit
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United States of America Patent
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-
Jan 31, 1995
Grant Date -
N/A
app pub date -
Feb 25, 1993
filing date -
Feb 25, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An oscillating erase current circuit for erasing information recorded on magnetic media. The inductance of an erase head is coupled with capacitors to form a tank circuit having a natural resonant frequency. The self-oscillating erase current circuit generates an oscillating signal having a frequency of oscillation determined by and therefore equal to the natural resonant frequency of the tank circuit. Once enabled, the self-oscillating erase current circuit continuously oscillates without any external drive circuit.
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