Patent ID: 6525896
Filing Date: 2003-02-25
Classification: G11B,H03K

Abstract:
A disk drive write driver switch, comprising at least one pair of MOSFET transistors configured to provide a drive voltage to a write driver for turning the write driver on to generate a voltage greater than the terminal-to-terminal breakdown voltage for the MOSFET transistors when in an ON state and for turning the write driver off to generate an voltage near zero when in an OFF state,wherein one of the MOSFET transistors is coupled to a power supply, each of the MOSFET transistors having a gate, the gate of a first of the MOSFET transistors set at a first voltage for the OFF state, the first voltage being approximate to the terminal-to-terminal breakdown voltage of the MOSFET transistors and wherein the gate of the first of the MOSFET pair being set to a second voltage for the ON state, the second voltage being set to a value equal to the power supply voltage less the terminal-to-terminal breakdown voltage of the MOSFET transistors.