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Patent Searching and Data


Title:
HIGH SPEED SYNC FET CONTROL
Document Type and Number:
WIPO Patent Application WO/2015/077770
Kind Code:
A3
Abstract:
A circuit arrangement is disclosed for controlling the switching of a field effect transistor (FET). A current controlled amplifier may be configured to amplify a current in a current sense device to generate an amplified current, wherein the current in the current sense device indicates a current through the FET. A comparator may be coupled to the current sense amplifier to compare a voltage corresponding to the amplified current with a voltage reference and to generate a comparator output based on the comparison, wherein the comparator output controls whether the FET is on or off.

Inventors:
BRINLEE, Antony E. (2512 Cedar Elm Lane, Plano, Texas, 75075, US)
Application Number:
US2014/067399
Publication Date:
September 03, 2015
Filing Date:
November 25, 2014
Export Citation:
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Assignee:
FLEXTRONICS AP, LLC (305 Interlocken Parkway, Broomfield, Colorado, 80021, US)
International Classes:
H03K17/082; H02M3/335; H03K17/687; H02M1/00; H03K3/012; H03K17/14; H03K17/16; H03K17/18; H03K17/691
Foreign References:
US4703390A1987-10-27
US20090295348A12009-12-03
US5175489A1992-12-29
US5519341A1996-05-21
EP2323244A22011-05-18
US20130272036A12013-10-17
US20100201335A12010-08-12
EP2209195A22010-07-21
US20080002441A12008-01-03
US20070133234A12007-06-14
US20050248964A12005-11-10
Other References:
"Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 3616 Adding Extra Hysteresis to Comparators", 19 September 2005 (2005-09-19), pages 1 - 9, XP055197212, Retrieved from the Internet [retrieved on 20150622]
Attorney, Agent or Firm:
HALT, Gerald, B., Jr. (Volpe & Koenig, P.C.United Plaza,30 South 17th Stree, Philadelphia Pennsylvania, 19103, US)
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