Multi-Level Voltage Generator

Abstract

A multilevel voltage generator includes a first positive voltage generator generating a first output voltage using a first capacitor which receives a reference voltage and is charged to a voltage level corresponding to two times of the reference voltage, a second positive voltage generator generating a second output voltage and a third output voltage using a second capacitor and a third capacitor which receive the first output voltage and are charged to voltage levels corresponding to predetermined multiples of the reference voltage, and a negative voltage generator generating a fourth output voltage having predetermined negative voltage levels using a fourth capacitor which receives the reference voltage, the second output voltage, or the third output voltage and is charged to a voltage level corresponding to a negative voltage of the second or third output voltage.

Dependencies are inferred from the claim text.