Power glitch free internal voltage generation circuit

Details Power glitch free internal voltage generation circuit Power glitch free internal voltage generation circuit

2005-08-30

2005-08-30

Patel, Rajnikant B. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

C323S313000, C327S539000, C327S542000

Reexamination Certificate

active

06936998

ABSTRACT:
A power glitch free internal voltage generation circuit includes: a voltage divider for dividing level of an internal voltage; a reference voltage generator generating a reference voltage having a predetermined voltage level by dividing a level of an external voltage; a comparator connected to the external voltage and the internal voltage and comparing the divided internal voltage with the reference voltage to generate a compared output; and a driver for supplying the external voltage to the internal voltage in response to the output of the comparator. In this manner, a high voltage level from either of the external voltage and the internal voltage is used as a source of the comparator. This, in turn, stably maintains the internal voltage because the driver for transferring the external voltage to the internal voltage is intercepted in the case where a glitch occurs that lowers the external voltage to a level lower than the internal voltage.

REFERENCES:
patent: 4442398 (1984-04-01), Bertails et al.
patent: 4994688 (1991-02-01), Horiguchi et al.
patent: 5036269 (1991-07-01), Murari et al.
patent: 5434533 (1995-07-01), Furutani
patent: 5747974 (1998-05-01), Jeon
patent: 6020761 (2000-02-01), Hwang et al.
patent: 2002/0008500 (2002-01-01), Hashimoto
patent: 0 461 788 (1991-12-01), None
patent: 5-127764 (1993-05-01), None
patent: 07-234735 (1995-09-01), None
patent: 1999-31575 (1999-05-01), None

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