Patent ID: 8547147
Filing Date: 2013-10-01
Classification: G06F,H03K

Abstract:
1. A power-on reset (POR) circuit, comprising a self-bias module configured to provide a reference voltage; a feedback module configured to provide a feedback voltage; a comparison module including inputs configured to receive the reference voltage and the feedback voltage and an output configured to provide an output signal, wherein the comparison module is configured to compare the feedback voltage to the reference voltage and to provide an output signal having a first level if the magnitude of the feedback voltage is less than magnitude of the reference voltage and a second level if the magnitude of the feedback voltage is greater than magnitude of the reference voltage; an inverter configured to couple the output of the comparison module to an enable input of the self-bias module; and a switch module coupled to the inverter, wherein the switch module and the inverter are configured to disabled the self bias module when the feedback voltage exceeds the reference voltage.