Patent ID: 8228629
Filing Date: 2012-07-24
Classification: G11B

Abstract:
1. A disk drive device comprising: A. a spindle motor having first, second, and third winding terminals; B. a voice coil motor having first and second coil terminals; C. a power lead; D. a common lead; E. first, second, and third pairs of spindle motor transistors connected between the power lead and the common lead, each pair of spindle motor transistors having a lead connected to one of the first, second, and third winding terminals; F. first and second pairs of voice coil motor transistors connected between the power lead and the common lead, each pair of voice coil motor transistors having a lead connected to one of the first and second coil terminals; G. a first capacitor connected between the power lead and the common lead; H. a charge pump having an output; I. a second capacitor having a first lead selectively coupled to the output of the charge pump and a second lead connected to the common lead; and J. a transistor connected between the first lead of the second capacitor and the power lead.