Charge pump

摘要

A charge pump comprises a single voltage multiplier stage ( 1 ) which converts an input voltage (VDD) into an output voltage (Vo) under control of a clock signal (Q, Qn; CLKO). An oscillator ( 2 ) receives the input voltage (VDD) to generate the clock signal (Q, Qn; CLKO) having a repetition period (Tr 1 , Tr 2 ) which is substantially proportional to a squared input voltage (VDD²).