Patent ID: 8716897
Filing Date: 2014-05-06
Classification: G11C

Abstract:
1. A voltage generator comprising: a first transistor coupled between a first supply and an output node; a second transistor coupled between a second supply and the output node; a first amplifier having an output coupled to a gate of the first transistor, a first input configured to receive a feedback voltage based, at least in part, on a voltage at the output node, and a second input configured to receive a low threshold voltage, wherein the first amplifier is configured to turn on the first transistor when the feedback voltage is lower than the low threshold voltage; a second amplifier having an output coupled to a gate of the second transistor, a first input configured to receive a feedback voltage based, at least in part, on the voltage at the output node, and a second input configured to receive a high threshold voltage, wherein the second amplifier is configured to turn on the second transistor when the feedback voltage is higher than the high threshold voltage; and circuitry coupled to the first or second amplifier and configured to either: