Patent ID: 8773172

Claim:
A driver circuit, comprising: a driver output stage having a high-level voltage input and a low-level voltage input, the driver output stage being operable to generate an output voltage responsive to a gate voltage applied to the driver output stage; an operational amplifier operable to regulate the gate voltage applied to the driver output stage so that the output voltage corresponds to a control signal input to the operational amplifier; a first supply voltage connected to the high-level voltage input of the driver output stage, the first supply voltage being higher than a maximum value of the control signal; and a second supply voltage connected to the low-level voltage input of the driver output stage, the second supply voltage being lower than a minimum value of the control signal, wherein the operational amplifier has a first terminal coupled to the control signal and a second terminal coupled to the output of the driver output stage, wherein the second terminal of the operational amplifier is connected to the output of the driver output stage by an active circuit comprising switches operable to disable feedback from the output of the driver output stage to the second terminal of the operational amplifier during certain time intervals and enable the feedback during other time intervals.