Current sense cascode amplifier

Details Current sense cascode amplifier Current sense cascode amplifier

2009-11-24

2011-12-27

Laxton, Gary L (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S224000, C323S277000, C323S315000

Reexamination Certificate

active

08085026

ABSTRACT:
A current sense amplifier sensing current through a main switch of a converter. The amplifier includes first and second switch devices, an amplifier control circuit, a bias circuit, a current generator circuit, and a sense circuit. The main switch is coupled to an input, phase and control nodes. The first and second switch devices are smaller matching versions of the main switch and are both coupled to the main switch and form first and second nodes. The bias circuit is coupled between second and fourth nodes and the amplifier control circuit is coupled between first and third nodes. The current generator develops a first current through the amplifier control circuit and a second current through the bias circuit. The sense circuit has a current path coupled to the first node and is controlled by the third node to develop a sense voltage indicative of current through the main switch.

REFERENCES:
patent: 7050914 (2006-05-01), Tzeng et al.
patent: 7777472 (2010-08-01), Uehara
patent: 7928703 (2011-04-01), Tan et al.
patent: 7994766 (2011-08-01), De Lima Filho et al.

Affiliated with

Also associated with

Rating

Current sense cascode amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current sense cascode amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current sense cascode amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4316304