Disclosed is a charge pump having first and second outputs and at least one capacitor. Also provided are a crystalline formic acid solvate of Rivaroxaban, processes for the preparation of crystalline Rivaroxaban formic acid solvate and the use of the Rivaroxaban formic acid solvate in the manufacture of the crystalline dihydrate of Rivaroxaban. The guide is dimensioned such that, when the back support impacts the guide, the rotational axis of the back support is shifted and the rotation of the back support is accelerated. The photovoltaic generation output is thereby smoothed, and time shift is enabled. Once the mark is provided, endometrial ablation process can be provided in the uterus. A first biasing member is connected to the focus lens and the motor, and has a constant biasing force; and a second biasing member is provided for positioning the motor on the first step region for applying a biasing force in a lateral direction.