Start-up circuit for generating bandgap reference voltage

Details Start-up circuit for generating bandgap reference voltage Start-up circuit for generating bandgap reference voltage

2011-08-30

2011-08-30

Patel, Rajnikant B (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S513000, C323S313000

Reexamination Certificate

active

08008966

ABSTRACT:
Disclosed is a start-up circuit that can stably and rapidly start up a bandgap reference voltage generating circuit when the bandgap reference voltage generating circuit is switched from a sleep mode to an operation mode, even if a difference in electrical characteristic, such as DC offset or the like, occurs due to, e.g, a physical difference between input transistors of an operational amplifier.

REFERENCES:
patent: 6906581 (2005-06-01), Kang et al.
patent: 7119620 (2006-10-01), Pan
patent: 7224209 (2007-05-01), Hsu
patent: 7342390 (2008-03-01), Tachibana et al.
patent: 7602236 (2009-10-01), Jo

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