Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Reducing the natural current limit in a power MOS device by reducing the gate-source voltage










Image Number 3 for United States Patent #5541799.

In accordance with the present invention, an output current limit circuit for protecting a power MOS output device of an integrated circuit from an excessive drain current comprises a power MOS device 110, a means 30 to sense a predetermined trigger current, and a means 20 to reduce a gate-source voltage on MOS output device 110 to a predetermined approximately fixed value. A drain current I.sub.D flows through power MOS device 110 from output terminal 102 in response to the gate-source voltage. A short circuit condition may allow an excessive amount of drain current I.sub.D to flow through output terminal 102. The gate-source voltage is reduced in response to sensing the trigger current. Reducing the gate-source voltage raises a drain-source resistance of MOS device 110 and reduces drain current I.sub.D so that MOS device 110 is not damaged by the short circuit condition.








 
 
  Recently Added Patents
LED light
Systems and methods for archiving and retrieving navigation points in a voice command platform
Playlist search device, playlist search method and program
Fixing device and image forming apparatus
Architectural panel with millet and grass
Sensing device and electronic apparatus
Analysis, secure access to, and transmission of array images
  Randomly Featured Patents
Quick clean rotary valve
Method for forming fine patterns of a semiconductor device
Process for preparing electrical connection means, in particular interconnection substances of hybrid circuits
Cooled airfoil for gas turbine engine and method of making the same
Cuvette array
Fluidized-bed reactor and a temperature-controlling method for the fluidized-bed reactor
White light emitting device
Low-foaming hydrogen peroxide cleaning solution for organic soils
PLL circuit and recording or reproducing apparatus utilizing the same
Apparatus and method for correcting registration errors and trailing phenomenon in a printed image