System and method for power on reset and under voltage...

Details System and method for power on reset and under voltage... System and method for power on reset and under voltage...

2007-11-20

2007-11-20

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S142000, C327S198000

Reexamination Certificate

active

11407682

ABSTRACT:
A system and method for power-on reset and under-voltage lockout schemes. The system includes a first transistor, which includes a first gate, a first terminal, and a second terminal, the second terminal being biased to a predetermined voltage. The system includes a second transistor, which include a second gate, a third terminal, and a fourth terminal, the third terminal being configured to receive an input voltage. The system includes a first resistor that is associated with a first resistance. The first resistor includes a fifth terminal and a sixth terminal, the fifth terminal being configured to receive the input voltage. The system includes a second resistor that is associated with a second resistance. The second resistor includes a seventh terminal and an eighth terminal, the seventh terminal being coupled to the sixth terminal. The system includes a first Zener diode that is associated with a first Zener voltage.

REFERENCES:
patent: 5313112 (1994-05-01), Macks

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