Constant voltage circuit with drooping and foldback overcurrent protection

The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current division circuit for dividing the sense current and outputting divided currents; a first current to voltage conversion circuit for convertin...

Full description

Saved in:
Bibliographic Details
Main Author SAKAGUCHI KAORU
Format Patent
LanguageEnglish
Published 29.03.2016
Subjects
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
Online AccessGet full text

Cover

More Information
Summary:The constant voltage includes a sense transistor through which a sense current flows based on an output current flowing through an output transistor; a current division circuit for dividing the sense current and outputting divided currents; a first current to voltage conversion circuit for converting a first division current output from the current division circuit to a first voltage; a second current voltage conversion circuit for converting a second division current output from the current division circuit to a second voltage; an output voltage detection circuit for controlling the current division circuit such that a drain voltage of the sense transistor becomes equal to a voltage of the output terminal; and an overcurrent protection circuit for controlling the output voltage and the output current by detecting an overcurrent flowing through the output transistor based on the first voltage.
Bibliography:Application Number: US201414199668