Method and apparatus to provide a low voltage reference...

Details Method and apparatus to provide a low voltage reference... Method and apparatus to provide a low voltage reference...

2000-12-22

2003-09-30

Han, Jessica (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S280000, C323S314000

Reexamination Certificate

active

06628108

ABSTRACT:

FIELD OF INVENTION
The present invention relates generally to voltage generators. More particularly, the present invention relates to a method and apparatus to provide a low voltage reference generation.
BACKGROUND OF THE INVENTION
A reference voltage generator is a device that is powered by an input voltage and outputs a reference voltage to compare with another voltage. Prior art reference voltage generators use constant voltage input for supplying power to the voltage reference generation circuit. The same constant voltage input is also used for generating the voltage reference.
A problem with this approach is that current technology devices supply different voltage values that vary with time. The current voltage reference generators are limited in their operation since they can only operate under one constant voltage value and need to be redesigned for a different voltage value. Another problem with using same constant voltage input for both supplying current to the circuit and generating a voltage reference is that it loads the voltage potential of the voltage input by having to perform two functions. This results in producing a voltage reference that varies highly with distribution of input voltage through the circuit.
Prior art reference voltage generators also provide a constant output reference voltage irrespective of changes to the input voltage. A problem with this approach is that it is only applicable to a very limited number of electronic devices that support the constant output reference voltage. Thus this approach may not be modified to apply to parts that do not accept the produced constant reference voltage.


REFERENCES:
patent: 5374859 (1994-12-01), Doyle et al.
patent: 5495453 (1996-02-01), Wociechowski et al.
patent: 5532915 (1996-07-01), Pantelakis et al.
patent: 5594360 (1997-01-01), Wojciechowski
patent: 5671179 (1997-09-01), Javanifard
patent: 5701272 (1997-12-01), Brennan, Jr.
patent: 5859526 (1999-01-01), Do et al.
patent: 6051999 (2000-04-01), To et al.
patent: 6160440 (2000-12-01), Javanifard et al.
patent: 6292048 (2001-09-01), Li
patent: 6327690 (2001-12-01), Zhang et al.
patent: 6366497 (2002-04-01), Guliani et al.

Affiliated with

Also associated with

Rating

Method and apparatus to provide a low voltage reference... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus to provide a low voltage reference..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to provide a low voltage reference... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3040610