Patent ID: 9607709
Date: 2017-03-28
CPC Classifications: G05F,G11C

Claim:
1. A voltage generator, comprising: an operation mode determination circuit configured to determine an active mode or a standby mode based on a chip enable signal to activate an active mode signal or a standby mode signal according to a result of the determination; and a bulk voltage generation circuit configured to outputting a bulk voltage having an internal power voltage when the active mode signal is activated, and to outputting the bulk voltage having an external power voltage when the standby mode signal is activated, wherein the operation mode determination circuit comprises: a logic unit configured to perform a logical combination of the chip enable signal and the active chip signal; a level shifter configured to change a logic high level of an output signal of the logic unit from the internal power voltage to the external power voltage; and an output unit configured to buffer an output signal of the level shifter to output as the standby mode signal and to invert the output signal of the level shifter to output as the active mode signal a control signal generation unit configured to generate an active chip signal, outputted to the operation mode determination circuit, based on the chip enable signal.