PMOS (P-channel Metal Oxide Semiconductor) positive high-voltage charge pump

The invention relates to the technical field of an integrated circuit and discloses a PMOS (P-channel Metal Oxide Semiconductor) positive high-voltage charge pump. The charge pump provided by the invention has a new structure, while an original PMOS switch charge pump is preserved, an auxiliary grid control branch for the PMOS switch charge pump is added, a grid voltage of a PMOS switch tube in an auxiliary transmission branch is reduced, the charge conduction capacity of a PMOS tube in the auxiliary transmission branch is increased, and the voltage loss is reduced, so that the output voltage is increased, the rise time for voltage is reduced, the voltage gradient in the whole voltage rise stage of a circuit is increased, and meanwhile, a bigger countercurrent which exists when a PMOS tube grid in a main transmission branch is directly controlled by the auxiliary grid control branch is well reduced.