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US 6,650,103 B2Granted
Magnetic snapback sensor circuit and electrostatic discharge circuit using same
AssigneeAnalog Devices, Inc.
InventorAlan W. Righter
Life of this patent
Estimating the term…
Abstract
A magnetic snapback sensor circuit for sensing current transients imposed on the snapback circuit including a current conductor loop; a conductor carrying current from a snapback circuit subject to current transients and intersecting with the conductor loop for magnetically generating a current in the loop; and a current detector circuit for generating an output responsive to the current flowing in the loop induced by a current transient.
Claims15
A magnetic snapback sensor circuit for sensing current transients imposed on a snapback circuit comprising:
- a current conductor loop;
- a conductor carrying current from a snapback circuit subject to current transients and intersecting with said conductor loop for magnetically generating a current in said loop;
- and
- a current detector circuit for generating an output responsive to the current flowing in said loop induced by a current transient.
1 more element
An electrostatic discharge circuit comprising:
- a snapback circuit including an MOS transistor with an inherent parasitic bipolar transistor;
- a magnetic snapback sensor circuit in series with said snapback circuit and including a conductor loop;
- a conductor carrying current from a snapback circuit subject to electrostatic discharge and intersecting with said conductor loop for magnetically generating a current in said loop;
- and a current detector circuit for generating an output responsive to the current flowing in said loop induced by an electrostatic discharge for controlling the operating bias on the gate of said MOS transistor.
1 more element
Dependencies are inferred from the claim text.