Reverse current protection circuit

In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to t...

Full description

Saved in:
Bibliographic Details
Main Authors Son, Roland Karl, Luebbe, Juergen, Manohar, Sujan Kundapur, Yu, Eddie W
Format Patent
LanguageEnglish
Published 30.10.2018
Subjects
BASIC ELECTRONIC CIRCUITRY
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
PULSE TECHNIQUE
Online AccessGet full text

Cover

More Information
Summary:In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.
Bibliography:Application Number: US201615232521