Patent ID: 7902910

Claim:
A boosted voltage generator comprising: a reference voltage generator configured to generate a reference voltage based on a first voltage; an input voltage generation block configured to amplify a difference between the reference voltage and a first feedback input voltage fed back via a load at the input voltage generation block output terminal and output a first input voltage, which corresponds to a voltage swinging between a second input voltage and a second voltage, or output the second input voltage in response to an input voltage control signal, to compare a feedback boosted voltage with the reference voltage in response to a comparison control signal, and to output a comparison result, where the comparison control signal is generated based on the input voltage control signal and a load detection signal corresponding to the amount of load at the output terminal; and a booster configured to boost the first or second input voltage using at least one external capacitor based on the comparison result and to output a boosting result as a boosted voltage to the output terminal.