Internal voltage compensation circuit

摘要

An internal voltage compensation circuit is provided which includes a power up signal generator configured to generate a power up signal, a select signal generator configured to compare a level of a first external voltage with a level of a second external voltage to generate first and second select signals, wherein the second select signal is generated in response to the power up signal, and a voltage compensation unit configured to electrically connect an internal voltage to the first external voltage or the second external voltage in response to the first and second select signals.

主权项

1. An internal voltage compensation circuit comprising:
a power up signal generator configured to generate a power up signal having a level transition after a level of a first external voltage reaches a level of a target voltage; a select signal generator configured to compare the level of the first external voltage with a level of a second external voltage to generate a select signal in response to the power up signal, wherein levels of the first external voltage and the second external voltage are increased with a predetermined slope; a first switch configured to electrically connect an internal voltage to the first external voltage in response to the select signal; and a second switch configured to electrically connect the internal voltage to the second external voltage in response to the select signal.