A compact coating system comprises a UV-blocking coating composition, a basecoat composition, a clearcoat composition, and a monocoat topcoat composition, wherein: each of the UV-blocking coating composition, the basecoat coating composition, and the monocoat coating composition comprises from about 0. The wire-winding method includes the following steps. The transistor switches a high voltage input through the transistor, a choke inductor and a boost inductor. Consequently, a large output is produced with only a small weight added to the carriage of the disk drive.