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:
Oct. 24, 2000
Filed:
Jan. 27, 1998
John J Kardash, Gilroy, CA (US);
Quantum Corporation, Milpitas, CA (US);
Abstract
A controller for controlling the voltage slew-rate of an inductive load connected to the drain of a field effect transistor is disclosed. The controller includes a current generator electrically connected between the gate and the drain of the field effect transistor, the current generator providing a current at the gate of the field effect transistor to offset a feed back current at the gate of the transistor due to gate-drain capacitance of the transistor. The current generator includes capacitor means having one end electrically connected to the drain of the field effect transistor, a current multiplier electrically connected between another end of the capacitor means and the gate of the field effect transistor, and a current source electrically connected to the gate of the field effect transistor. The current multiplier includes at least one current mirror, and the current source includes a constant current source.