Patent ID: 7626448
Filing Date: 2009-12-01
Classification: G11C

Abstract:
1. An internal voltage generator, comprising: a reference voltage supplying unit configured to generate a reference voltage and temperature compensation signals in response to a positive voltage and a negative voltage, wherein the reference voltage has a predetermined voltage level regardless of a temperature variation, wherein the positive voltage has a voltage level proportional to the temperature variation, and the negative voltage has a voltage level inversely proportional to the temperature variation; and an internal voltage supplying unit configured to receive the reference voltage and to generate at an output an internal voltage corresponding to the reference voltage; and a temperature compensation current sinking unit configured to receive a temperature compensation signal of the temperature compensation signals based on the negative voltage and to sink a current of the internal voltage at the output in response to a voltage level of the temperature compensation signal, thereby maintaining the voltage level of the internal voltage to be stable regardless of the temperature variation.