Patent ID: 6016073
Filing Date: 2000-01-18
Classification: H02M

Abstract:
Charge pump comprising a plurality of stages connected in series between a reference potential and an output terminal of the charge pump, wherein said plurality of stages comprises a first group of stages, proximate to said reference potential, and a second group of stages proximate to said output terminal of the charge pump, each stage of said first group comprising a pass-transistor with first and second terminals respectively connected to an input and an output of the stage, and a first capacitor with a first plate connected to said output of the stage and a second plate driven by a first digital signal switching between said reference voltage and a positive voltage, each stage of the second group comprising a junction diode having a first electrode connected to an input of the stage and a second electrode connected to an output of the stage, wherein the junction diode transfers charge from an input of the stage for an entire period of the first digital signal to an output of the stage, and a second capacitor having a first plate connected to said output of the stage and a second plate driven by a second digital signal switching between said reference voltage and said voltage supply.