Patent ID: 7081779

Claim:
A reset signal generating circuit, comprising: a power sensing stabilizing unit for sensing variations of a power voltage, and for outputting a signal proportional to variations of the power voltage until the power voltage reaches a specific level; a voltage adjusting unit for dropping the power voltage to a predetermined level, and outputting a first power voltage; a feedback control unit for controlling the output from the power sensing stabilizing unit according to the output from the voltage adjusting unit, and for generating a reset signal by pulling down the output signal from the power sensing stabilizing unit when the output from the voltage adjusting unit reaches the specific level; a self pull-up driving unit for maintaining a pull-down state of the output from the power sensing stabilizing unit, by pulling up the output from the voltage adjusting unit to a second power voltage level according to a self bias gate voltage, after generation of the reset signal; a self pull-up bias unit for outputting the self bias gate voltage according to variations of the power voltage; and a self bias unit for dropping the self bias gate voltage at a specific self bias gate voltage level.