HIGH VOLTAGE GENERATING CIRCUIT

摘要

PURPOSE: A high voltage generating circuit is provided to boost a voltage to a desired high level by improving a pumping efficiency. CONSTITUTION: The high voltage generating circuit comprises: an oscillating circuit for generating a pulse signal; an input circuit for generating a pair of signals having a complementary level after receiving the pulse signals from the oscillating circuit; a driving circuit for amplifying output signals from the input circuit; a pump circuit further comprising a plurality of capacitors having a first and a second electrodes in which the first electrode receives the amplified output signals from the driving circuit; a transfer circuit for transferring a high voltage to a voltage pumping node of which a bulk is connected to the driving circuit and to the second electrodes of a plurality of capacitors of the voltage pumping circuit; and a bias circuit for initializing the voltage pumping node to a power-up state by the same voltage as a power voltage.