Patent ID: 8354990
Filing Date: 2013-01-15
Classification: G09G,G11C,H03K

Abstract:
1. A drive circuit comprising: at least one sampling circuit configured to sample an analogue input and output a voltage to a respective output; a logic block connected between a source of a first voltage and a source of a second voltage, the first voltage being greater than the second voltage, and the logic block configured to output, in use, a respective output signal for each sampling circuit; and at least one voltage boost circuit associated with a respective one of the sampling circuits, each voltage boost circuit configured to, upon receiving the respective signal output from the logic block, generate a boosted voltage signal and provide the boosted voltage signal to the respective sampling circuit, and each voltage boost circuit connected between the source of the first voltage and the source of the second voltage, and each voltage boost circuit including, a switch configured to connect the first terminal of the boost capacitor to a storage capacitor during a boost phase.