A surgical alignment device is shown that is controlled remotely through the use of an actuator, where the actuator in turn controls at least one local adjustment device. The second PFC circuit is connected in parallel with the first PFC circuit for generating an output voltage of the parallel PFC converter. The joint part and the abutment part are detachably connected to each other. In one embodiment, excess fuel is shunted by a fuel bypass pressure regulator to a fuel bypass line, and the excess fuel is the cooling fluid which is returned to the fuel tank. b) An interconnection plate connecting the top metalized contact area of die two with the intermediate contact area while being formed to accommodate for elevation difference between the contact areas. A method and computer-readable medium may also implement disk-error detection.