Patent ID: 6642773
Filing Date: 2003-11-04
Classification: H02M

Abstract:
A charge pump circuit comprising a plurality of driving units cascaded in series, each driving unit comprising:an input port; an output port; a first node; a second node; a first capacitor electrically connected to the first node; a second capacitor electrically connected to the output port; a first transistor comprising: a substrate electrically connected to the second node; a gate electrically connected to the output port; a drain electrically connected to the input port; and a source electrically connected to the first node; a second transistor comprising: a substrate electrically connected to the second node; a gate electrically connected to the first node; a drain electrically connected to the input port; and a source electrically connected to the output port; and a third transistor comprising: a substrate electrically connected to the second node; a gate electrically connected to the first node; a source electrically connected to the second node; and a drain electrically connected to the output port.