Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-05-30
2008-11-04
Luu, An T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S540000, C327S512000, C323S313000, C323S315000
Reexamination Certificate
active
07446599
ABSTRACT:
A reference voltage generator is provided. The reference voltage generator includes a bandgap reference circuit, a level shifter and a voltage divider. The bandgap reference circuit includes a current generator and a first BJT. The current generator outputs a reference current. The first BJT flows in the reference current from its emitter via a first resistor and has its collector and base grounded, such that a bandgap reference voltage and a first bias voltage can be output at the connection between the current generator and the first resistor and at the emitter of the first BJT. The level shifter is coupled to the bandgap reference circuit and outputs a second bias voltage higher than the first bias voltage and unequal to the bandgap reference voltage. The voltage divider is connected between the second bias voltage and the bandgap reference voltage and outputs a reference voltage therebetween.
REFERENCES:
patent: 6727744 (2004-04-01), Nagaya
patent: 6879141 (2005-04-01), Ho
patent: 7116588 (2006-10-01), Joo
patent: 7224209 (2007-05-01), Hsu
Bacon & Thomas PLLC
Himax Technologies Limited
Luu An T.
LandOfFree
Reference voltage generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reference voltage generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reference voltage generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4040888