Patent ID: 8896354
Filing Date: 2014-11-25
Classification: H03K

Abstract:
1. A driving device comprising: a pre-driver configured to output a drive control signal upon receiving a power-supply voltage in response to an input signal, and change a voltage level of the drive control signal in response to a control signal so as to selectively provide the changed voltage level; an output driver configured to receive the power-supply voltage in response to the drive control signal, and output the received power-supply voltage to an output terminal; and a bulk-voltage controller configured to selectively control bulk-voltage levels of the pre-driver and the output driver in response to the control signal, wherein the bulk-voltage controller includes: a pull-up bulk controller configured to output a pull-up bulk voltage and change a voltage level of the pull-up bulk voltage in response to the control signal; and a pull-down bulk controller configured to output a pull-down bulk voltage and change a voltage level of the pull-down bulk voltage in response to the control signal.