Patent ID: 8446189
Filing Date: 2013-05-21
Classification: H03K

Abstract:
1. A power-on reset circuit comprising: clamping signal generator adapted to receive a trigger signal, and generating a clamping signal with reference to the trigger signal, the clamping signal generator including an output unit for generating the clamping signal according to a feedback signal, and a feedback unit for generating the feedback signal according to first and second intermediate signals, the first intermediate signal being generated with reference to the clamping signal, the second intermediate signal being generated according to the trigger signal; and a determining device adapted to receive the trigger signal, coupled to the clamping signal generator for receiving the clamping signal therefrom, and operable to generate a reset signal according to the trigger signal and the clamping signal; wherein the clamping signal generator further includes a delay unit adapted to receive the trigger signal, and operable to output the trigger signal as the second intermediate signal after the trigger signal has been received thereby for a predetermined delay time.