Patent ID: 7808302

Claim:
A charge pump apparatus, providing multiple positive and negative voltages, comprising: a capacitor set; multiple electronic switches connected to said capacitor set and a plurality of voltage sources; multiple output capacitors connected to selected ones of said multiple electronic switches and one or more output terminals; and a non-overlapping time sequence that controls the on and off states of said multiple electronic switches; wherein under the control of said non-overlapping time sequence, corresponding electronic switches are turned on and off to control the output of the positive and negative voltages provided by said output capacitors to generate output voltages that are pre-determined multiples of two or more input voltages; wherein said multiple electronic switches includes a first electronic switch, a second electronic switch, a third electronic switch, a fourth electronic switch, a fifth electronic switch, and a sixth electronic switch, and wherein said capacitor set includes a capacitor having a first terminal and a second terminal, the first terminal of said capacitor connects to the first, second, and third electronic switches, and the second terminal connects to the fourth, fifth, and sixth electronic switches; wherein the first electronic switch connects to a first voltage, the second electronic switch connects to a second voltage, and the third electronic switch connects to a terminal of a first output voltage; wherein the fourth electronic switch connects to a third voltage, the fifth electronic switch connects to a fourth voltage, and the sixth electronic voltage connects to a terminal of a second output voltage; and wherein the first voltage, the second voltage, the third voltage, and the fourth voltage are capable of being varied to adjust the first output voltage and the second output voltage.