Patent ID: 8441307

Claim:
A charge pump circuit, comprising, a plurality of subcircuits, wherein each of the subcircuits comprising an X-source terminal, an X-gate terminal, a Y-gate terminal, a Y-source terminal, a common drain terminal, and a clock terminal; wherein the X-gate terminal of a first subcircuit is connected to the common drain of a second subcircuit, the Y-gate terminal and Y-source terminal of the first subcircuit are connected to the X-source terminal of the second subcircuit; wherein there is a Va voltage at the X-source terminal of the first subcircuit and there is a Vb voltage at the Y-source terminal of the second subcircuit; and wherein each of the subcircuits comprises an X-channel device having the X-gate terminal, the X-source terminal and a X-drain terminal, a Y-channel device having the Y-gate terminal, the Y-source terminal and a Y-drain terminal, and a capacitor; wherein a first end of the capacitor, the X-drain terminal, and the Y-drain terminal are connected with each other to form the common drain terminal; and wherein a second end of the capacitor is the clock terminal.