Highly effective charge pump employing NMOS transistors

摘要

A highly effective charge pump circuit includes a pulse generator for generating a pulse signal in response to a control signal, a first voltage pumping unit for generating a first high voltage in response to the control signal and the pulse signal, a second voltage pumping unit for generating a second high voltage of the same level as the first high voltage in response to the control signal and the pulse signal, and a voltage transmitting unit that receives and outputs first high voltage when the second high voltage is applied. The charge pump obtains a high voltage using NMOS transistors.